Safe Drinking Water Permit and Capacity Requirements
Developer Services SummitNovember 16, 2010
Engineering - Asset PlanningVince Monaco
Safe Drinking Water Permit and Capacity Requirements
Developer Services SummitNovember 16, 2010
Engineering - Asset PlanningVince Monaco
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GOAL: An abundant water supply of superior quality, available in adequate volume and pressure, whenever and wherever is needed.
GOAL: An abundant water supply of superior quality, available in adequate volume and pressure, whenever and wherever is needed.
Objectives
• Explain Asset Planning Functions• Review SDW Permitting Requirements• Review of System Capacity Determination• New Jersey American Water Approach
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Identifies and shepherds comprehensive planning studies which identify needed projects for sustainability of current and future system demands
Performs system analysis to verify capacities and availability
Records and maintains buried assets geographic locations and attributes
Asset Planning Functions
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Verification of System Capacity
• System Capacity Analysis/Evaluation of: Source of Supply Production / Treatment Supply Conveyance / Delivery
(Pressure Regulation, Distribution, Transmission) Storage
(Equalization, Fire Flow, Emergency Supply) Other System Deficiencies
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Established in the SDWA Rules at NJAC 7:10-11.5
Application Endorsements Engineering Report Plans and Specifications Fees
SDW Application
Types
Standard Application
Simplified
Master Permit Application
SDW Permit Application Process:
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System Capacity Determination
Each applicant for a permit to construct or modify a public community water system must demonstrate that a proposed water system improvement, extension or connection will not exceed the firm capacity of the water system or the water diversion limits contained in an applicable water allocation permit.
Source and Treatment Capacity Evaluation- Firm Capacity Determination- Monthly Demand- Yearly Demand
Reliable Capacity
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Definitions:• “Firm Capacity” means adequate pumping equipment and/or treatment
capacity (excluding coagulation, flocculation, and sedimentation) to meet peak daily demand, as defined below, when the largest pumping station or treatment unit is out of service.
• "Peak daily demand" means: For modification to or extension of an existing water system, the average daily
demand as recorded in the peak month of the prior five years, plus an estimation of the anticipated peak daily water demand calculated as follows:
Residential – Average daily demand according to DCA’s Residential Site Improvement Standards (RSIS), N.J.A.C. 5:21-5.2(d);
Non-Residential – Average daily demand according to N.J.A.C. 7:10-12.6(b), Table 1;
The sum of the above multiplied by a peaking factor of three (3)
For a proposed new water system, an estimation of the anticipated peak daily water demand calculated for residential and non-residential development, per the above.
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Residential Site Improvement Standards
Type/Size Housing Number of ResidentsResidential Water Demand *
(daily)
Single Family detached (gallons per day)
2-bedroom 2.13 2153-bedroom 3.21 3204-bedroom 3.93 3955-bedroom 4.73 475
Garden Apartment
1-bedroom 1.57 1202-bedroom 2.33 1753-bedroom 3.56 270
Townhouse
1-bedroom 1.69 1252-bedroom 2.02 1503-bedroom 2.83 2104-bedroom 3.67 275
High-Rise
studio 1.07 801-bedroom 1.34 1002-bedroom 2.14 160
Mobile Home
1-bedroom 1.73 1302-bedroom 2.01 1503-bedroom 3.47 260
NOTES: * Based on 100 gallons per person per day for single-family detached units and 75 gallons per person per day for other housing types (rounded).
SOURCE: U.S. Census, Public Use File - New Jersey (Units built 1975-1980).
EXHIBIT 5.1 Water Demand / Generation by Type/Size of Housing
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Non-Residential Demand
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Non-Residential Demand (continued)
TABLE 1- AVERAGE DAILY WATER DEMAND
Type of Establishment Gallons per Person17. Swimming pool or bathhouse ………………………………………………. 1018. Club house*
a. For each resident member ………………………………. 60b. For each nonresident member ………………………………. 25
19. Nursing home 15020. Campground
a. Without individual sewer hook-up ………………………………. 75 per site
b. With individual sewer hook-up ………………………………. 100 per site
c. With laundry facility and individual sewer hook-up ………………. 150 per site21. Store, office building ………………………………………………. 0.125 gal/sq. ft22. Self-service laundry ………………………………………………. 50 gal/wash
• *Includes kitchen demand at 10 gallons per person per day. If laundry demand is anticipated, the estimated water demand shall be increased by 50 percent.
• **Demand projections shall be calculated by multiplying the certified seating capacity of the establishment by the applicable water usage in gallons per person under 9a, b or c above, and by a factor of 1, 2, or 3 reflecting the hours of operation, as follows: one to six hours (1), seven to 12 hours (2), or more than 12 hours (3).
• ***When the establishment will serve more than one use, the multiple use shall be considered in determining water demand
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The Firm Capacity and Water Allocation Analysis consists of two (2) components:
1) Firm Capacity: The proposed water system has adequate firm capacity to meet all of the following:
Existing peak daily demand Anticipated peak daily demand from both of the following:
Previously approved but not yet constructed DEP-permitted water main extensions or connections; and
Non DEP-permit water main extensions committed to, but not yet completed by, the water supplier
Anticipated peak daily demand from the subject application
Firm Capacity & Water Allocation Analysis
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2) Water Allocation: The applicant possesses a valid water allocation permit with sufficient monthly and annual diversion limits and/or bulk purchase agreements to meet existing and estimated demand, as follows:
Monthly – Average daily demand calculated for residential and non-residential development as above, multiplied by a peaking factor of 1.5, and then multiplied by 31 (days/month)
Annual – Average daily demand calculated for residential and non-residential development as above, multiplied by 365 (days/year)
The estimated peak monthly and annual demand shall be added to
the respective, existing demand figures and then compared to the
applicable water allocation permit limits
Firm Capacity & Water Allocation Analysis
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Firm Capacity Determination
System Plant Well# Capacity/mgd
1 1 2.0
2 2 2.0
3 3 2.04 4 2.4
8.4
6.0
Total System Capacity =
Firm Capacity =
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Recorded Peak Demand for Previous Five Years 2006 2007 2008 2009 2010
Jan 74.4 71.3 71.3 77.5 77.5 Feb 70.0 67.2 72.8 75.6 64.4 Mar 89.9 96.1 93.0 89.9 93.0 Apr 102.0 99.0 102.0 99.0 105.0 May 120.9 127.1 124.0 136.4 124.0 Jun 129.0 132.0 126.0 141.0 135.0 Jul 145.7 148.8 136.4 142.6 155.0 Aug 142.6 151.9 147.7 139.5 151.9 Sep 132.0 132.0 145.1 132.0 135.0 Oct 117.8 111.6 114.7 114.7 108.5 Nov 96.0 96.0 105.0 102.0 n/a Dec 74.4 77.5 83.7 80.6 n/a
Peak (MGM) 145.7 151.9 147.7 142.6 155.0
Total (MGY) 1,294.7 1,310.5 1,321.7 1,330.8 1,149.3
Calculating Projected System Water Demand
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Outstanding Demand Project Name Avg. Demand (MGD) Peak Demand (MGD)
Cape Woods Campground 0.025 0.075 Briar Cliff Mews 0.040 0.120 5-SFD subdivision 0.0018 0.005
Total Demand 0.0668 0.200 Current Project Demand
Project Name Avg. Demand (MGD) Peak Demand (MGD)
ABC Daycare 0.015 0.045 Existing Peak Demand (mgd) = 155.0/31 days = 5.000 Outstanding Peak Demand (mgd) = 0.200 Estimated Project Peak Demand (mgd) = 0.045 Total Existing/Projected Peak Demand = 5.245 MGD Conclusion: Existing/Estimated Peak Demand (5.245 MGD) < 6.0 MGD (firm capacity)
Calculating Projected System Water Demand
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• Formula for Calculating Peak Monthly Demand: Peak Monthly + [1.5(outstanding avg. + estimated avg. project demand) x
31] =
155 MGM (July/2010) + [1.5(0.0668 + 0.015) x 31] = 158.804 MGM
• Formula for Calculating Annual Demand: Peak Annual + 365 (outstanding avg. + estimated avg. project demand) =
1,330.8 MGY(2009) + 365(0.0668 + 0.015) = 1,360.66 MGY
Current Water Allocation Permit Limits Monthly: 170.5 MGM Annual: 1,443.0 MGY
Water Allocation Analysis
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Our Challenges . . .
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Number and System Sizes
• Five large regional water systems• 30 Additional water systems• 17 Counties• 187 Municipalities• 323 MGD production
• All regional systems have supply capacity surpluses
• Five relatively small systems have supply capacity challenges Several remedial projects are being planned
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Surface
Ground
Purchase
R-M WTP 156 MGD
Canal Road WTP 80 MGD
Canoe Brook WTPPassaic/Canoe Brook
Reservoir System15 MGD
Delaware R. WTP Delaware River 30 MGD
Swimming R. WTP Swimming River Reservoir 36 MGD
Jumping B. WTPJumping Brook & Glendola
Reservoir25 MGD
Oak Glen WTP Manasquan Reservoir 7.5 MGD
Major Production Facilities
Raritan River, Round Valley & Spruce Run
Own Sources/Treatment Percentage (%)
Surface 352.5 MGD 67.5%
Ground 109.8 MGD 21.0%Purchase 60.0 MGD 11.5%
Total 522.3 MGD
Summary
Capacities as of December 31, 2008
* Bulk purchase amount is an estimate and does not include raw water purchases from the New Jersey Water Supply Authority.
Maximum Day 486.3 MGD
Average Day 323.0 MGD
Average Purchase * 13.0 MGD
2008 System Deliveries
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Systems with Supply Surplus & Supply Deficit
Surplus
Deficit
System System
Atlantic County Raritan Cape May Courthouse Edison Water Company - O&M Contract Ocean City Liberty Water Company - O&M Contract Strathmere
Passaic Basin Delaware River Little Falls Logan Sunbury (Pemberton) Washington
Frenchtown Bridgeport Belvidere Harrison Township Mt. Olive - ITC Penns Grove Mt. Olive - West Jersey
Mount Holly Vincentown New Egypt (Plumstead) Homestead
Coastal North Jamesburg Ortley Beach Pelican Island (Under Evaluation) Union Beach (Under Evaluation)
Coastal SouthFire Road
RaritanRaritan, Belle Meade, & Netherwood
StateArea
Operation AreaOperating Center
Washington
NORTH
PassaicShort Hills
Shrewsbury & LakewoodCoastal North
Operating CenterStateArea
Operation Area
SOUTH
DelawareDelran
South Jersey
Mount Holly
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Select this optionSelect County & search
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Check these critical items
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Master Permits
Raritan Union, Somerset, Middlesex, Mercer, Morris and Hunterdon County
Coastal North Middlesex, Monmouth, and Ocean County
Coastal South Atlantic County
Delaware River Regional
Burlington, Camden, and Gloucester County
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Next Up: CAD Drawing RequirementsBy: Donna Short