Institutional Water Use

Water Use In Schools ndash

How to Conduct a Water

Audit and Save

Brent M White

Suncoast Earth Force Teachers Workshop

August 2 2010

Gary Adult High SchoolTampa FL

5172011 2

Why Take Action on Environmental Issues

Industry business and government

organizations are adopting sustainable

practices in their work place

Incorporating these practices may

provides benefits including Reduced utility bills

Improved property value

Greater competitiveness

Enhanced public image

Improved local ecosystem

5172011 3

Schools too have been taking action on environmental issues

By taking action schools will be able to Save money

Instruct current generations on

how to deal with future issues

Integrate environmental education

into the curriculum

Reduce waste and other environmental impacts

Improve cooperation throughout the school community

Promote environmental values attitudes

knowledge and skills to their students and staff

What Can Schools Do

5172011 4

Water is only thought about in times of

drought or flood

Virtually everything we do or use

involves water

Even though supply is finite we tend to

take water for granted

Simple actions can be adopted to reduce

waste and use water wisely

Why Water

5172011 5

Monitoring water use is a good start

Can be achieved by doing a water audit

An audit will reveal your current water

use and management system

Provides background information for

developing actions for reducing water

use

Will also create a starting point from

which improvements can be measured

What is a Water Audit

5172011 6

Five components to an water audit1 Selecting which facility

to evaluate

2 Gathering facility

demographics

3 Conduct the on-site

evaluation

4 Prepare the evaluation report

5 Follow-up

Conducting the Water Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 2

Why Take Action on Environmental Issues

Industry business and government

organizations are adopting sustainable

practices in their work place

Incorporating these practices may

provides benefits including Reduced utility bills

Improved property value

Greater competitiveness

Enhanced public image

Improved local ecosystem

5172011 3

Schools too have been taking action on environmental issues

By taking action schools will be able to Save money

Instruct current generations on

how to deal with future issues

Integrate environmental education

into the curriculum

Reduce waste and other environmental impacts

Improve cooperation throughout the school community

Promote environmental values attitudes

knowledge and skills to their students and staff

What Can Schools Do

5172011 4

Water is only thought about in times of

drought or flood

Virtually everything we do or use

involves water

Even though supply is finite we tend to

take water for granted

Simple actions can be adopted to reduce

waste and use water wisely

Why Water

5172011 5

Monitoring water use is a good start

Can be achieved by doing a water audit

An audit will reveal your current water

use and management system

Provides background information for

developing actions for reducing water

use

Will also create a starting point from

which improvements can be measured

What is a Water Audit

5172011 6

Five components to an water audit1 Selecting which facility

to evaluate

2 Gathering facility

demographics

3 Conduct the on-site

evaluation

4 Prepare the evaluation report

5 Follow-up

Conducting the Water Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 3

Schools too have been taking action on environmental issues

By taking action schools will be able to Save money

Instruct current generations on

how to deal with future issues

Integrate environmental education

into the curriculum

Reduce waste and other environmental impacts

Improve cooperation throughout the school community

Promote environmental values attitudes

knowledge and skills to their students and staff

What Can Schools Do

5172011 4

Water is only thought about in times of

drought or flood

Virtually everything we do or use

involves water

Even though supply is finite we tend to

take water for granted

Simple actions can be adopted to reduce

waste and use water wisely

Why Water

5172011 5

Monitoring water use is a good start

Can be achieved by doing a water audit

An audit will reveal your current water

use and management system

Provides background information for

developing actions for reducing water

use

Will also create a starting point from

which improvements can be measured

What is a Water Audit

5172011 6

Five components to an water audit1 Selecting which facility

to evaluate

2 Gathering facility

demographics

3 Conduct the on-site

evaluation

4 Prepare the evaluation report

5 Follow-up

Conducting the Water Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 4

Water is only thought about in times of

drought or flood

Virtually everything we do or use

involves water

Even though supply is finite we tend to

take water for granted

Simple actions can be adopted to reduce

waste and use water wisely

Why Water

5172011 5

Monitoring water use is a good start

Can be achieved by doing a water audit

An audit will reveal your current water

use and management system

Provides background information for

developing actions for reducing water

use

Will also create a starting point from

which improvements can be measured

What is a Water Audit

5172011 6

Five components to an water audit1 Selecting which facility

to evaluate

2 Gathering facility

demographics

3 Conduct the on-site

evaluation

4 Prepare the evaluation report

5 Follow-up

Conducting the Water Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 5

Monitoring water use is a good start

Can be achieved by doing a water audit

An audit will reveal your current water

use and management system

Provides background information for

developing actions for reducing water

use

Will also create a starting point from

which improvements can be measured

What is a Water Audit

5172011 6

Five components to an water audit1 Selecting which facility

to evaluate

2 Gathering facility

demographics

3 Conduct the on-site

evaluation

4 Prepare the evaluation report

5 Follow-up

Conducting the Water Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 6

Five components to an water audit1 Selecting which facility

to evaluate

2 Gathering facility

demographics

3 Conduct the on-site

evaluation

4 Prepare the evaluation report

5 Follow-up

Conducting the Water Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 7

Compile annual water use records by

facility type

Refine the database by water used per

measurement parameter

Compare the water-use rate to the

benchmark value for the type of facility

Reorder the list of facilities by potential

water savings into a chart

Selecting Facilities to Evaluate

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 8

School Baseline

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 9

Information to be gathered about a

facility to be audited includes

Gathering Facility Demographics

Address

Facility contact

Title

Age of facility

Building size

Operating hoursdays

Shifts per day

Number of employees

Percent malefemale

Full Part time

Meter size and count

Water source(s)

Billing class rates

2-years of water history

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 10

Determine the water use rate for all

equipment and processes

Consistency is important

Major areas to include are Sanitation

Kitchen

Office

Miscellaneous

Irrigation

Conducting On-Site Evaluation

Heating Cooling

Leak detection

Water used in products

Alternative water use

Staff input

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 11

Evaluate Annual Water Consumption Detail the water and sewer billing data for

the facility by Average monthly usage and cost

Peak monthly usage and cost

Average daily usage and cost

Total annual usage and cost

Monthly use by meter type

Display seasonal influences on water use

Evaluation Report Contents

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 12

Seasonal Water Use Breakdown

Sample Seasonal Water Use Trends

0

100

200

300

400

500

600

700

800

900

Apr-04 May-04 Jun-04 Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05

Month

Us

e (

gal)

Irrigation DomesticTower Blowdown Linear (Tower Blowdown)Linear (Irrigation) Linear (Domestic)

Fall Spring

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 13

Water Budget Includes Facility Statistics

Equipment water use ratings

(Existing and Proposed)

Frequency of use

Days per year of use

Estimated Adjusted use Per year

Estimated savings Per year

Evaluation Report Contents

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 14

The Water BudgetEstimated Adjusted Estimated

Days Per UseYr UseYr SavingsYr

Year (ccf) (ccf) (ccf)

HeatingCooling

Cooling Towers 350 Tons 5376 galtonday 4301 galtonday 1 usesday 365 days 918160 734563 183598

918160 734563 183598

Sanitation

Toilets 1400 Customers 16 gpf 16 gpf 025 flushpersonday 312 days 23358 23358 000

Toilets 20 Staff 16 gpf 16 gpf 4 flushpersonday 312 days 5339 5339 000

Urinals 700 Male customers 15 gpf 1 gpf 025 flushpersonday 312 days 10949 7299 3650

Urinals 10 Staff 15 gpf 1 gpf 2 flushpersonday 312 days 1251 834 417

Faucets 1400 Customers 22 gpf 15 gpf 025 minday 312 days 32118 21898 10219

Faucets 20 Staff 22 gpm 15 gpm 1 minday 312 days 1835 1251 584

Showerheads 21 Staff 25 gpm 25 gpm 2 minday 313 days 4394 4394 000

74851 59981 14870

Kitchen

Hand sinks 3 Number 6 gpm 25 gpm 3 minday 312 days 2252 939 1314

Prep sinks 6 Number 6 gpm 4 gpm 5 minday 312 days 7508 5005 2503

Brewed tea sales 1 Number 360 galmonth 360 galmonth 12 months 1 year 578 578 000

Lemonade sales 1 Number 900 galmonth 900 galmonth 12 months 1 year 1444 1444 000

Coffee sales 1 Number 300 galmonth 300 galmonth 12 months 1 year 481 481 000

Pre-rinse sprayer 2 Number 8 gpm 16 gpm 10 minday 312 days 6674 1335 5339

Ice-machine 1 Number 028 gal lb ice 028 gal lb ice 600 lbs Ice 312 days 7007 7007 000

Steam table 1 Number 2 gpd 2 gpd 312 days 1 year 083 083 000

Bun warmer 1 Number 025 gpd 025 gpd 312 days 1 year 010 010 000

Steam cabinet 1 Number 3 gpd 3 gpd 312 days 1 year 125 125 000

Soda tower 2 Number 10 fl ozsoda 10 fl ozsoda 725 sodas 312 day 4725 4725 000

30888 21733 9156

Misc

Hose bibb 1 Number 6 galuse 6 galuse 3 usesday 312 days 751 751 0

Spray sanitizers 1 Number 3 gpd 3 gpd 1 usesday 312 days 125 125 0

Floor cleaning 1 Number 3 galuse 3 galuse 18 usesweek 312 days 2252 2252 0

3128 3128 0

Irrigation

300 sq ft 5 galsq ft 5 galsq ft 2 uses week 52 weeks 20856 20856 0

1047884 840260 207624 Total Water Use

Total Kitchen

Total Misc

Application

Total Sanitary

Basis Existing Proposed Frequency

Water Usage

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 15

Evaluation Report Contents

Efficiency recommendations payback

periods related to annual savings Payback = $ to implement divide Annual Savings

Contractors and vendors can supply costs

Annual savings is based on water and

sewer costs

Increased savings when tiered rate

structures are in place

Incorporate electric savings with items that

use hot water

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 16

Recommended Water Efficiency Measures Each recommendation contains Current equipment rating

Suggested change

Number of changes equipment

Cost ndash estimated (include sewer and

extensions)

Savings ndash estimated (include sewer and

extensions)

List reclaimed water if applicable

Annual payback periods

Evaluation Report Contents

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 17

Sample Recommendation

Install low-volume pre-rinse sprayer

Your pre-rinse sprayer(s) near your dish station use 6 gpm

We recommend replacing them with a model that uses 16 gpm

Note The Energy Policy Act of 2005 (EPAct) in effect since Jan 1 2006

states that all pre-rinse units and replacement spray valves used for ware

washing must have a maximum flow of 16 gpm at 60 psi

Project CostEstimated cost 75$ per nozzles

Total project cost 75$

SavingsEstimated savings 1098 Kgal per year

Cost to heat water 050$ per Kgal

Water savings value 5732$ (including sewer)

Payback periodThis recommencation may pay for itself

with water and sewer savings in 131 years

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 18

Secondary Conservation Items Unallocated water Water use that is not identified

Special Comments Possible leaks detection

Booster pump effects

Availability of reclaimed water

Additional water savings tips

Contact information

Evaluation Report Contents

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 19

Summary of measures

Cumulative list of conservation

measures

Total of all measures

Evaluation Report Contents

Recommended Initial Savings Expense Payback

Measures Cost ccfyear Avoided Period (yrs)

Replace 35 gpf toilet 125$ 2418 12622$ 099

Install efficient pre-rinse sprayer 120 629 3283 365

Install prep sink aerator - 262 1368 000

Install handsink aerator - 105 548 000

Install spray nozzles on hose bibbs - 367 1916 000

Total 245$ 3781 19737$ 124

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 20

One-year after the evaluation Follow up with facility

Determine the implementation rate

Gauge the participantrsquos satisfaction Measure long-term implementation

Satisfaction with new equipment

Satisfaction with personnel involved

Perceived change in utility bill

Incorporate information about available

related programs

Satisfaction and Effectiveness

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 21

Audit was performed in October lsquo09 251 students

46 full-time staff

5 part-time staff

Multiple events throughout year

Sporting events

Theater productions

Community meetings

Parent Association meetings

Booster Club events

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 22

Various stages of construction All had plumbing code requirements specific

to the year the building was constructed

Evident in the flow rates of sanitary fixtures

Example Pre-1994 toilets use 35 gallons per

flush (gpf) Post-1994 toilets use 16 gpf

Requires allocation of facility population to

specific buildingsfixtures

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 23

Before audit Chart 4-years of water and sewer records

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 24

Canterbury School Audit

Benchmarks used in Water budget Flushes per day ndash US EPA Water Conservation Plan

Guidelines

Faucet minutes per day ndash US EPA Water Conservation

Plan Guidelines

Showerhead minutes per day ndash Determined during

audit interviews with facility staff

Visitor Attendance ndash Estimated at 20000 per year

Ice Used ndash Based upon ice machine production ratings

Soda sales ndash 15 sodas per visitor per year

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 25

Gallons Student Day Use as a baseline for comparison

Compared to other High Schools in St

Petersburgrsquos service area Gibbs High ndash 2200 students ndash 917

Lakewood High ndash 1810 students ndash 411

Canterbury School ndash 251 students ndash 3407

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 26

Misc

1240

LabClass

624Kitchen

294

Irrigation

352

Sanitary

5816

Athletic

1675

Allocation by Water Use Type

Canterbury School Audit

1997 SWFWMD Study 2008 Canterbury Audit

Irrigation

12

Misc

3

Cooling

48

Sanitary

31

LabClass

1

Kitchen

5

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 27

Canterbury School Audit

Indoor recommendations 35 Flushometer toilet retrofits

Estimated savings of 201 Kgal

Savings value of $95154

Payback period of 105 years

Bathroom faucet aerators Estimated savings of 468 Kgal

Savings value of $244863 (includes heating)

Payback period of 002 years

Urinal flush valve retrofits Estimated savings of 587 Kgal

Savings value of $27960

Payback period of 045 years

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 28

Canterbury School Audit

Indoor recommendations Low-flow showerheads

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Hand sink aerators Estimated savings of 5304 Kgal

Savings value of $2774 (includes heating)

Payback period of 022 years

Hose bibb spray nozzles Estimated savings of 2457 Kgal

Savings value of $11622

Payback period of 023years

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 29

Canterbury School Audit

Indoor recommendations KitchenPrep sink aerators

Estimated savings of 117 Kgal

Savings value of $6119 (includes heating)

Payback period of 131 years

Summary of Indoor MeasuresRecommended Initial Savings Expense Payback

Measures Cost CGalyear Avoided Period (yrs)

Replace 35 gpf flushometer toilets 100000$ 201172 95154$ 105

Install urinal flush valve retrofit kit 12500 58740 27960 045

Install faucet aerators in the bathrooms 4800 468126 244830 002

Install low-flow showerheads 8000 11700 6119 131

Install hand sink aerators 600 5304 2774 022

Install prep sink aerators 600 18200 9519 006

Use spray nozzles on hose bibbs 2700 24570 11622 023

Total 129200$ 787812 397978$ 048

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 30

Outdoor Recommendations Clean and replace clogged nozzles

Repair leaks in irrigation system

Convert to low-volume irrigation

Application specific recommendations Straighten nozzles

Cap off some rotors andor pop-ups

Increase plant bed size

Convert turf areas to mulched areas

Improve uniformity by matching nozzle flow rates to

demands (separate turf from shrub zones)

Realign nozzles so as not to spray on impervious surfaces

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 31

Outdoor Recommendations Irrigation durationschedule

Inspect system monthly Visually examine all sprinkler heads

Ten minutes of operating time is allowed

An attendant must be present

Check rain sensor operation

Canterbury School Audit

Time Type

20 Mixed

20 Mixed

25 Plants

45 Turf

25 Plants

20 Turf

25 PlantsOnce2 Weeks

OnceWeek

Once2 Weeks

OnceWeek

OnceWeek

TwiceWeek

TwiceWeek

November - March

Once2 Weeks

OnceWeek

OnceWeek

OnceWeek

TwiceWeek

OnceWeek

TwiceWeek

South and Front

Field House

Colonade

East Side of Building

Elevated Beds

Parking Lot North

Parking Lot South

April - October

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 32

Canterbury School Audit

Outdoor Recommendations Seashore Paspalum (Paspalum vaginatum) Similar to Bermuda grass

Heals faster

Salt-tolerant

Requires 50 less water

Uses 75 less Nitrogen

Half of all athletic fields in Charlotte

County uses Seashore Paspalum

Varieties Sea Dwarf Aloha

Sea Isle Sea Spray

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 33

Outdoor recommendations Fountain wind speed control system Automatically slow down or shut off a

fountain if surrounding wind speeds

are high enough to blow the spray

out of the fountain basin

Reduces spray drift that reaches

impervious surfaces

Fountains currently restricted to

4-hours of operation per day

Canterbury School Audit

5172011 34

Outdoor recommendations Stormwater reuse Collecting and storing

precipitation for future use

Done on a larger scale by utilities

Aquifer Storage and Recovery (ASR)

Stores water during the rainy season

for the dry season

Cisterns

Rain Barrels

Canterbury School Audit

5172011 35

Alternative funding opportunities Performance Contracting

Existing utility rebate programs

Retrofit giveaways

Mini-grants for educational efforts

that incorporate water savings Splash mini-grants ndash School based

Community Education grant

ndash Public based

Source Water Protection (TBW)

Estuary Program Grants

Implementation Options

Thank You

For more info

BrentWhiteswfwmdstateflus

1-800-423-1476 ext 4214

5172011 35

Alternative funding opportunities Performance Contracting

Existing utility rebate programs

Retrofit giveaways

Mini-grants for educational efforts

that incorporate water savings Splash mini-grants ndash School based

Community Education grant

ndash Public based

Source Water Protection (TBW)

Estuary Program Grants

Implementation Options

Thank You

For more info

BrentWhiteswfwmdstateflus

1-800-423-1476 ext 4214

Thank You

For more info

BrentWhiteswfwmdstateflus

1-800-423-1476 ext 4214