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8/8/2019 Dallas Water Sports Complex - Lake Savers - Clean Flo Presentation
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Lake Savers 1
LAKESAVERS
Natural Lake Restoration
Dallas Water Sports Complex
January 2011
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Lake Savers 2
Contents
About Lake Savers
Overview and Objectives forDallas Water Sports Complex
Summary of Lake SaversNatural Lake Restoration Methods
System Design for Dallas Water Sports Complex
Results
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Lake Savers 3
About Lake Savers
To deliver ACTIONABLEstrategies torestore lakes to a balanced, pristinecondition for the benefit of currentstakeholders and future generations.
Mission:
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Lake Savers 4
Overview and Objectives
Urban Lakes receive more nutrients and pollutants from the
surrounding environment than they were designed to handlenaturally.
Even healthy lakes can experience spikes in pathogenicbacteria and nutrients due to rain events.
The key to keeping urban lakes healthy is to INCREASEtheircapacity to process nutrients and pollutants.
The Clean-Flo Restoration Process is the most effectiveapproach to keeping lakes healthy and safe for recreationaluse. This approach will:
Kill pathogenic bacteria that enter the lake by exposing
them to oxygen and sunlight continuously. Keep algae and weeds under control without the need
for chemical herbicides.
Improve the lake environment for fish, turtles, frogs, etc.
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Lake Savers 5
Natural Methods for Lake Restoration
Lake SaversNatural Lake Restoration
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Lake Savers 6
The Need for Lake Restoration Efforts
Excessive Weed GrowthAlgae Blooms
Accumulation of Muck/Loss of DepthOdor
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Lake Savers 7
Nutrient Loading Cycle in a Lake
2. Dead algae andweeds fall to thebottom
3. Decompositiondepletes lake of
oxygen
Decaying weeds and algae
Anaerobic sludge
Lake Bottom
4. Nutrients releasedback into the water
5. New algae bloomand weed growth
1. Nutrients Flow intoLake/Pond Leadingto ExcessiveWeed/Algae Growth
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Lake Savers 8
Accelerated Eutrophication Cycle
Decaying weeds and algae
Anaerobic sludge
Lake Bottom
Internal Nutrient Loading Cycle
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Lake Savers 9
Five Key Points Guiding our Approach
to Natural Lake Restoration
1. Most water bodies are overfed and out ofbalance.
2. Conventional strategies are primarily peoplemanagement strategies not lake management
strategies.
3. Nutrient reduction (Internal & External)is theonly sustainable approach to Lake Restoration.
4. Lakes Need to Breath to Be Healthy!
5. Lake Savers can put your lake on a diet andexercise program utilizing ENGINEEREDAERATION and BACTERIAL AUGMENTATIONto restore health, balance and recreationalquality.
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Lake Savers People Management not Lake Management 10
Summary on Whats Wrong with TraditionalApproaches the Lake Management
Excessive Weed Growth
Algae Blooms
Accumulation ofMuck/Loss of Depth
Odor
Internal NutrientLoading
Oxygen Depletion
2. Few, if any resourcesare directed at solvingroot causes.
External NutrientLoading
LAKE PROBLEMS
ROOT CAUSES
1. Most dollars arespent on Chemicals,Harvesting and/ orDredging which onlytreat symptoms.
3. Lake continues todeteriorate over time,treatment costs rise.
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Lake Savers Lake Savers: A Diet & Exercise Program for Lakes! 11
Our Approach Attack the Root Causes!
Excessive Weed Growth
Algae Blooms
Accumulation ofMuck/Loss of Depth
Odor
ENGINEERED AERATION &BENEFICIAL BACTERIA/ENZYME TREATMENT
External nutrient loading
Internal nutrient loading
Oxygen Depletion
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Lake Savers Lakes Need To Breathe To Be Healthy!!! 12
The Importance of Dissolved Oxygen
Oxygen Depleted Lake Oxygen Rich Lake
1. When oxygen runs out at the lakebottom phosphorus can release fromthe sediments and feed weed growthand algae blooms.
2. Anaerobic bacteria take overproducing ammonia, methane andhydrogen sulfide.
3. Organic muck accumulationaccelerates.
4. Fish Cant feed at the bottom (wheremost of the food is) stunting, fishkills possible, rough fish begin tooutcompete desirable species.
1. In the presence of oxygenPhosphorus stays locked in thesediments unavailable to weeds andalgae.
2. Aerobic bacteria thrive forming ahealthy bottom environment andbase for the aquatic food chain.
3. Aerobic bacteria literally eatmuck/organics converting it tocarbon dioxide and water.
4. Fish can feed all the way to thebottom creating a healthy fisheryboth in size and population ofdesirable species.
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Lake Savers 13
Engineered Aeration & Biological Augmentation Complete Water Body Oxygenation and Reduction of
Internal Nutrient Loading
Lake SaversNatural Lake Restoration
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Lake SaversLakes Need To Breathe To Be Healthy!!! 14
Engineered Aeration & BeneficialBacteria/Enzyme Treatments
How Engineered Aeration & BeneficialBacteria/Enzyme Treatments Work
A system of underwater air diffusers connected to shore-based compressor units by self-sinking airline.
Each system is custom engineered based on the specificneeds and requirements of each lake.
Water picks-up oxygen at the surface and is circulated back tothe bottom maintaining a continuous supply of oxygen
throughout the entire water column.
High oxygen levels and off-gassing reduce nutrient levels,reducing weed and algae growth.
Beneficial bacteria and enzyme products are added to restorebalance to the aquatic eco-system.
Beneficial bacteria that require oxygen, literally eat the organic
muck on the bottom.
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Lake Savers Lakes Need To Breathe To Be Healthy!!! 15
O2
Aerobic benthic bacteriabreak down organics
Nutrients removedthrough the food chain
Phosphorus stayslocked in sediment
NOxygenated surfacewater moves to thebottom.
CO2Toxic Gasesremoved
H2S
How Engineered Aeration RestoresLake Health & Balance
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Lake SaversLakes Need To Breathe To Be Healthy!!! 16
Accelerating a Lakes Natural CleaningMechanism
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Lake SaversLake Savers: A Diet & Exercise Program for Lakes! 17
2 feet of organic muck priorto treatment
Aerobic bacteria can breakdownorganic muck 30 times faster thananaerobic bacteria.
The Power of Engineered Aeration &Beneficial Bacteria/Enzyme Treatment
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Lake Savers 18
CLEAN-FLOEngineered Aeration Equipment
Ceramic diffuser with float
Small System
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Lake Savers 19
CLEAN-FLOEngineered Aeration Equipment
Optional Protective and Sound Reducing Cover
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Lake SaversLake Savers: A Diet & Exercise Program for Lakes! 20
CLEAN-FLOEngineered Aeration in Action
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Lake Savers 21
CLEAN-FLOEngineered Aeration in Action
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Lake Savers 22
System Design ForDallas Water Sports Complex
Lake SaversManagement Strategies for Healthier Lakes
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Lake Savers 23
Project Objectives
Proactively manage the water quality at theDallas Water Sports Complex using all-natural,sustainable methods.
Kill pathogenic bacteria that enter the lake byexposing them to oxygen and sunlightcontinuously.
Keep algae and weeds under control without theneed for chemical herbicides.
Improve the lake environment for swimming, fish,turtles, frogs, etc.
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Lake Savers 24
Dallas Water Sports System Components
System Components
Two 2 HP Rotary Vane Compressors
Eight Micro-porous Ceramic Diffusers
6000 feet of self-sinking airline
One large Clean-Flo Insulated Fiberglass Cabinet and allrequired fittings and hardware
Optional Bacteria and Enzyme Treatment for Year One
We can make a recommendation on whether this would be
beneficial based on site assessment
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Lake Savers 25
Dallas Water Sports ComplexSystem Design
Compressor Shed(not to scale it will bemuch smaller)
Diffusers placed on
the bottom (not toscale they will be muchsmaller)
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Lake Savers 26
Engineered Aeration & BiologicalAugmentation Results Update
Lake SaversManagement Strategies for Healthier Lakes
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Lake Savers 27
Collins LakeScotia, New York
About the Lake
60 acre lake with public beach.
Beach closed for two years due to fecal bacteria issue.
Milfoil and pondweed growth out of control.
Watershed management strategies and herbicide treatment were
not producing adequate results.
Management Program
One-time herbicide treatment for
milfoil and pondweed (2006).
Clean-Flo Engineered Aerationinstalled in June of 2006.
Clean-Flo bacteria and enzyme
treatment applied in July of 2006.
Results Beach opened in August of 2006,
remained open all of 2007, 2008, 2009and 2010
No significant re-growth of milfoil or
pondweed.
Dissolved oxygen maintainedthroughout water column all winter
despite shutting down the system for3 months.
Noticeable reduction in dead plant
material and muck in 2007.
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Lake Savers 28
Collins Lake Before Pictures 2006
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Lake Savers 29
Collins Lake After Pictures 2008(Similar View of the Lake)
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Lake Savers 30
Collins Lake Before Pictures 2006
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Lake Savers 31
Collins Lake After Pictures 2008(Similar View of the Lake)
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Lake Savers 32
Collins Lake After Pictures 2008
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Lake Savers 33
Collins Lake After Pictures 2008
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Lake Savers 34
Hammonton Lake
Hammonton, New Jersey
About the Lake
90 acre lake with public beach.
Beach closed due to fecal bacteria issue.
Problem weeds include Bladderwort and Milfoil
Management Program
Clean-Flo Engineered Aeration
installed in a 35 acre area of thelake near the public beach inJune of 2007.
No Bacteria and Enzymetreatment applied due toPinelands Commission permit
issues.
Results
Beach reopened in August of 2007
Bacteria counts reduced in the firstweek after installation.
2 to 3 day recovery time after heavy
rains.
Dissolved oxygen levels improvedthroughout the entire lake.
Already seeing a reduction in muckat the shore line.
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Lake Savers 35
Lake Hammonton
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Lake Savers 36
July 23 180 First test
July 31 1,621 1.5 rain on 7/30
Aug 2 356
Aug 3 185
Aug 4 96
Aug 8 56
Aug 15 60
Aug 19 58 2 rain event in pm
Aug 21 1,400Aug 24 200
Date Coliform Comments
Lake Hammonton Water Sampling Results
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Lake Savers 37
Lake Brown Kissimmee Florida
About the Lake 60 Acre Lake on at a Florida Resort.
5 6 feet average muck accumulation.
Beach closed for several weeks per year.
Virtually a dead lake due to overuse of herbicides over a 10
year period.
Management Program
Clean-Flo System Installed
July 1, 2008
Results
Aquatic weed growth under control
without the use of chemicalherbicides.
Average muck reduction of 24 in
13 months. Swimming beach remained open for
full season for the first time in 6years.
Since Installation the swimmingbeach has never been closed.
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Lake Savers 38
Lake Brown Muck Reduction Results
Water Depth Measurement Points
Muck Measurement ReferencePoints for future assessment
5.5
8
15
5.5
5.5
7
5.5
7
7/01/2008 Measurement
6/08/2009 Measurement
5.5
8
5.5
85.5
9
5.5
8
5.5
9
5.5
9
5.5
8
26 muck remaining
26 muck remaining
More than 9 muckremaining
5.5
8
4.5
6
1
2
3
54
67
8
9
10
11
A
B
C
5.5
8
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Lake Savers 39
Lake Brown Florida
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Lake Savers 40
Greenwood LakeGreenwood Lake, New York
About the Lake
80 Treatment area in 9 mile lake Maximum Depth 12 feet.
Treatment area focuses on parts of the lake that are the focal point
of the community.
Milfoil and algae growth out of control.
Water in the treatment area fetid with frequent odor problems inthe summer.
Management Program
Clean-Flo Engineered Aeration
installed in June of 2010.
Clean-Flo bacteria and enzymetreatment applied in July of 2010.
5 days of Harvesting.
Results
Estimated 50% reduction in Milfoilgrowth in 60 days!
No re-growth of milfoil followingharvesting.
Milfoil reductions not just the result
of harvesting.
Major improvements in water clarityand quality
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Lake Savers 41
Greenwood LakeTreatment Area
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Lake Savers 42
Greenwood Lake Results:Before Upper Eastern Arm Area
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Lake Savers 43
Greenwood Lake Results:After 45 Days after Installation
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Lake Savers 44
Greenwood Lake Results:Before Upper Eastern Arm Area
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Lake Savers 45
Greenwood Lake Results:After 45 Days after installation
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Lake Savers 46
Greenwood Lake Water Quality Data
LOCATION 1 2 3 4 5 6 7 8 9 10 Avg.
TotalPhosphorusmg/l2008 (Before)
0.03 0.07 0.11 0.20 0.19 0.21 0.11 0.17 0.18 0.06 .133
TotalPhosphorusmg/lJune 2010(Before)
.17 .13 .22 .15 .18 .17
TotalPhosphorusmg/lSept 2010
(After)
.06 .06 .05 .05 .07 .07 0.06
Phosphorus & Nitrogen
More than a 50% Reduction in TotalPhosphorus in the Treatment Area inless than four months!
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Lake Savers 47
Greenwood Lake Season One Results
Bottom Sediment Organic Composition Improvement
Muck Accumulation Improvement
LOCATION 1 2 3 4 5 6 7 8 9 10 Avg
% Organic2008 Sample(Before)
45% 43% 38% 35% 40%
% OrganicSept.
2010Sample(After)
24.9% 18.8% 13.6% .4% 25.1% 10.7% 15.6%
LOCATION 2 4 5 6 7 8 9 Avg.
Muck Depth2008 Sample(Before)
12 18 36 24 12 18 18 19.71
Muck DepthSept.2010Sample
(After)
0 12 6 12 0 12 24 9.42
More than a 50% Organic Content of Sediment ANDmuck depth in less than 4 months
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Lake Savers 48
Greenwood Lake Season One Results
Lake Bottom in area of Sample 4Lake Bottom in area of Sample 4
June 2010 (Before) September 2010 (After)
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Lake Savers 49
Greenwood Lake Season One Results
Lake Bottom in area of Sample 8Lake Bottom in area of Sample 8
June 2010 (Before) September 2010 (After)
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Lake Savers 50
Lakes Bridgeport & BenbrookFort Worth, Texas Area
About the Lakes
Two large water supply and recreational reservoirs.
High levels of manganese and hydrogen sulfide resulting in taste and
odor issues as well as increased treatment costs.
Represent two of the largest lake aeration projects in the country. 800
to 1000 acre treatment areas on 13,000 acre Lake Bridgeport and4,400 acre Lake Benbrook
Management Program
Clean-Flo System installed in 2010
Results
Data shows the ability to oxygenate
to a depth of 16 meters in 1 month ofcontinuous operation. Natural
turnover interrupted the process in2010. We anticipate sustaining a
minimum of 4 mg/l DO continuously.
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Lake Savers 51
Lakes Bridgeport & BenbrookSystems
Lake Bridgeport
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Lake Savers 52
Lakes Bridgeport & BenbrookSystems In Action
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Lake Savers 53
Lake Bridgeport Destratification Progressafter 30 Days Continuous Operation
0
2
4
6
8
10
12
14
16
18
20
0 5 10 15 20 25 30 35
Depth(m)
DO (mg/l)/Temp (oC)
BP Intake Area Profiles8/13/2010
DO BP-01
Temp BP-01
0
2
4
6
8
10
12
14
16
18
20
0 5 10 15 20 25 30 35
Depth(m)
DO (mg/l)/Temp (oC)
BP Intake Area Profiles8/19/2010
DO BP-01
Temp BP-01
0
2
4
6
8
10
12
14
16
18
20
0 5 10 15 20 25 30 35
Depth(m)
DO (mg/l)/Temp (oC)
BP Intake Area Profiles8/27/2010
DO BP-01
Temp BP-01
0
2
4
6
8
10
12
14
16
18
20
0 5 10 15 20 25 30 35
Depth(m)
DO (mg/l)/Temp (oC)
BP Intake Area Profiles9/01/2010
DO BP-01
Temp BP-01
0
2
4
6
8
10
12
14
16
18
200 5 10 15 20 25 30 35
Depth(m)
DO (mg/l)/Temp (oC)
BP Intake Area Profiles9/10/2010
DO BP-01
Temp BP-01
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Lake Savers 54
Tarrytown Upper ReservoirTarrytown, New York
About the Lake 25 Acre lake, max depth 12 feet
Completely over-run with milfoil and coontail.
Significant Blue-Green Algae through-out entire lake and
Filamentous Algae near the shoreline.
12 to 18 of organic muck accumulation on the lake bottom.
Management Program
Clean-Flo System installed in
July of 2010.
Bacteria and Enzyme treatmentapplied in July of 2010.
Results
Milfoil and coontail uprooted from
the bottom and starting to fail in 30days.
Most weeds decomposed and gone
within 60 days. Sand/gravel exposed at shoreline in
60 days.
Filamentous Algae eliminated and
Blue-Green Algae reduced in 60days.
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Lake Savers 55
Tarrytown Upper Reservoir System Design
Diffusers (placed on thebottom, not to scale they will bemuch smaller)
Rotary Claw Unit Locationhoused in shed (not to scalewill be much smaller)
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Lake Savers 56
Tarrytown Upper Reservoir Day of
Installation (Before)
Reference Points
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Lake Savers 57
Tarrytown Upper Reservoir After 60 Days
Reference Points
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Lake Savers 58
Tarrytown Upper Reservoir Results
View from Dock Area Along Southeast Shore
Installation Day (Before) After 60 Days
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Lake Savers 59
Tarrytown Upper Reservoir Results
View from Dock Area Along Southwest Shore
Installation Day (Before) After 60 Days
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Lake Savers 60
Tarrytown Upper Reservoir Results
Google Earth Image June 18,2010 (before) 60 Days after Installation
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Lake Savers 61
CLEAN-FLO System AnticipatingQuestions and Concerns
Will the system create a safety hazard for boats? No, there is nothing at the surface of the lake. The diffusers and
airline are located on the lake bottom.
Will the system create a safety hazard for swimmers? No, the diffuser boils are very gentle and do not pose a hazard for
swimmers.
Will the system harm the lake in any way? No, the system is simply putting air into the water. The bacteria and
enzyme products used do not even require DEQ Permit Approval unlike herbicides.
Will the system deplete the lake entirely of plants and algae? No, the system will gradually bring the lake back into a healthy
balance of aquatic vegetation.
Will the system harm fish and other wildlife? No, fish benefit as will the entire food chain in the lake.
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Lake Savers 62
Other Costs: Installation of Electrical
service to compressor locations customerresponsibility.
Ongoing Costs:
Electricity Costs We can provide estimates asdesigns are developed.
Additional Costs
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Lake Savers 63
Lake Savers Partial Track Record
2007
Willow Lake Kalamazoo, MI 8 acres Willowridge Lake , Kokomo, IN 8 acres Sherman Lake Channel, Kalamazoo, MI 5 acres
2008
Lake Brown Kissimmee, FL 60 acres Several additional ponds 4 6 acres
2009
Turnberry Lakes 100 acres Chippewa Lake (Channel) 6 acres
2010 Scheduled Installs
Lake Bridgeport Reservoir Fort Worth, Texas 700+ acre treatment area DONE
Lake Benbrook Reservoir Fort Worth Texas 800+ acre treatment area DONE Indian Lake Dowagiac, MI 86 acre treatment area DONE Greenwood Lake Greenwood Lake, NY 40 acre treatment area DONE Upper Tarrytown Reservoir, Tarrytown, NY 30 acres DONE Little Lakes, Frankfort, Indiana 30 acres Scheduled October 2010 Massabesic Reservoir, Manchester, NH 225 acres Scheduled October 2010
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Lake Savers 64
Why Lake Savers!!
Time (years)
Cost
1 2 3 4 5 6 7 8 9 10
DeterioratingWater Body
TraditionalApproachesAlone
HealthyWater Body
HealthyWater Body
Engineered Aeration/Beneficial Bacteria &Enzyme Treatments andFloating Islands
HealthyWater Body
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Lake Savers 65
Summary
1. Most water bodies are overfed and out ofbalance.
2. Conventional strategies are primarilypeople management strategies not lake
management strategies.3. Nutrient reduction (Internal & External)is
the only sustainable approach to LakeRestoration.
4. Lakes Need to Breath to Be Healthy!
5. Lake Savers can put your lake on a diet andexercise program to restore health, balanceand recreational quality.
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Questions & Comments
Contacts:
John TucciPresident
[email protected](269) 383.3400