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© Lake Savers 1
LAKE SAVERS™
Natural Lake Restoration™Results Update
Fall 2010
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© Lake Savers 2
Contents
About Lake Savers
Summary of Lake Savers Natural Lake Restoration™ Methods
Results
Working with Lake Savers
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About Lake Savers…
To deliver ACTIONABLE strategies to restore lakes to a balanced,
pristine condition for the benefit of current stakeholders and
future generations.
Mission:
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Natural Methods for Lake Restoration
Lake SaversNatural Lake Restoration™
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The Need for Lake Restoration Efforts
Excessive Weed GrowthAlgae BloomsAccumulation of Muck/ Loss of
DepthOdor
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Five Key Points Guiding our Approach to Natural Lake
Restoration
1. Most water bodies are overfed and out of balance.
2. Conventional strategies are primarily people management
strategies not lake management strategies.
3. Nutrient reduction (Internal & External) is the only
sustainable approach to Lake Restoration.
4. Lakes Need to Breath to Be Healthy!
5. Lake Savers can put your lake on a diet and exercise program
utilizing ENGINEERED AERATION™ and BACTERIAL AUGMENTATION to
restore health, balance and recreational quality.
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People Management not Lake Management 7
Summary on What’s Wrong with Traditional Approaches the Lake
Management
Excessive Weed Growth
Algae Blooms
Accumulation of Muck/Loss of Depth
Odor
Internal Nutrient Loading
Oxygen Depletion
2. Few, if any resources are directed at solving root
causes.
External Nutrient Loading
LAKE PROBLEMS
ROOT CAUSES
1. Most dollars are spent on Chemicals, Harvesting and/ or
Dredging which only treat symptoms.
3. Lake continues to deteriorate over time, treatment costs
rise.
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Lake Savers: A Diet & Exercise Program for Lakes!8
Our Approach – Attack the Root Causes!
Excessive Weed Growth
Algae Blooms
Accumulation of Muck/Loss of Depth
Odor
ENGINEERED AERATION & BENEFICIAL BACTERIA/ ENZYME
TREATMENT
External nutrient loading
Internal nutrient loading
Oxygen Depletion
FLOATING ISLANDS
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Lakes Need To Breathe To Be Healthy!!!9
The Importance of Dissolved Oxygen
Oxygen Depleted Lake Oxygen Rich Lake1. When oxygen runs out at
the lake
bottom phosphorus can release from the sediments and feed weed
growth and algae blooms.
2. Anaerobic bacteria take over producing ammonia, methane and
hydrogen sulfide.
3. Organic muck accumulation accelerates.
4. Fish Can’t feed at the bottom (where most of the food is) –
stunting, fish kills possible, rough fish begin to outcompete
desirable species.
1. In the presence of oxygen Phosphorus stays locked in the
sediments unavailable to weeds and algae.
2. Aerobic bacteria thrive forming a healthy bottom environment
and base for the aquatic food chain.
3. Aerobic bacteria literally eat muck/organics converting it to
carbon dioxide and water.
4. Fish can feed all the way to the bottom creating a healthy
fishery both in size and population of desirable species.
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Floating Islands –Trapping Nutrients at the points of Entry
Lake SaversNatural Lake Restoration™
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Lake Savers: A Diet & Exercise Program for Lakes!11
Floating Islands for Reducing External Nutrient Loading
What are Floating Islands?Porous mats made of a matrix of 100%
recycled polyester and bonded together with a high grade marine
foam for buoyancy.
Highly flexible system with a multitude of design options for
aesthetic and functional impact.
How do Floating Islands Work?They create a self-contained
environment for vegetation that can absorb significant amounts of
nutrients from the water.They mimic natural wetlands at a much
lower cost than reclaiming upland areas and converting them to
wetlands.They are most effective for Lake Restoration when used
around storm drains and inlets to trap nutrients flowing into the
lake.
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Engineered Aeration & Biological Augmentation –Complete
Water Body Oxygenation and Reduction of
Internal Nutrient Loading
Lake SaversNatural Lake Restoration™
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Lakes Need To Breathe To Be Healthy!!!13
Engineered Aeration & Beneficial Bacteria/Enzyme
Treatments
How Engineered Aeration & Beneficial Bacteria/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 specific needs and
requirements of each lake.
Water picks-up oxygen at the surface and is circulated back to
the 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 restore
balance to the aquatic eco-system.
Beneficial bacteria that require oxygen, literally eat the
organic muck on the bottom.
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Lakes Need To Breathe To Be Healthy!!!14
O2
Aerobic benthic bacteria break down organics
Nutrients removed through the food chain
Phosphorus stays locked in sediment
N Oxygenated surface water moves to the bottom.
CO2Toxic Gases removed
H2S
How Engineered Aeration Restores Lake Health & Balance
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Lakes Need To Breathe To Be Healthy!!!15
Accelerating a Lake’s Natural Cleaning Mechanism
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Lake Savers: A Diet & Exercise Program for Lakes!16
2 feet of organic muck prior to treatment
Aerobic bacteria can breakdown organic muck 30 times faster than
anaerobic bacteria.
The Power of Engineered Aeration & Beneficial
Bacteria/Enzyme Treatment
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Lake Savers: A Diet & Exercise Program for Lakes!17
CLEAN-FLO… Engineered Aeration in Action
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CLEAN-FLO… Engineered Aeration in Action
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Engineered Aeration & Biological Augmentation Results
Update
Lake SaversManagement Strategies for Healthier Lakes
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Greenwood Lake Greenwood 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 in the summer.
Management Program Clean-Flo Engineered Aeration installed in
June of 2010.Clean-Flo bacteria and enzyme treatment applied in
July of 2010.5 days of Harvesting.
Results Estimated 50% reduction in Milfoil growth in 60 days!No
re-growth of milfoil following harvesting.Milfoil reductions not
just the result of harvesting.Major improvements in water clarity
and quality
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Greenwood Lake Treatment Area
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Greenwood Lake Results: Before – Upper Eastern Arm Area
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Greenwood Lake Results: After – 45 Days after Installation
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Greenwood Lake Results: Before – Upper Eastern Arm Area
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Greenwood Lake Results: After – 45 Days after installation
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Greenwood Lake Water Quality Data
LOCATION 1 2 3 4 5 6 7 8 9 10 Avg.
Total Phosphorus mg/l 2008 (Before)
0.03 0.07 0.11 0.20 0.19 0.21 0.11 0.17 0.18 0.06 .133
Total Phosphorus mg/l June 2010 (Before)
.17 .13 .22 .15 .18 .17
Total Phosphorus mg/lSept 2010(After)
.06 .06 .05 .05 .07 .07 0.06
Phosphorus & Nitrogen
More than a 50% Reduction in Total Phosphorus in the Treatment
Area in less than four months!
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Greenwood Lake Season One ResultsBottom 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 Depth 2008 Sample (Before)
12” 18” 36” 24” 12” 18” 18” 19.71”
Muck Depth Sept. 2010Sample (After)
0” 12” 6” 12” 0” 12” 24” 9.42”
More than a 50% Organic Content of Sediment AND muck depth in
less than 4 months
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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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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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Turnberry Lakes Lakewood, Illinois
About the Lakes 100 Treatment area in 4 community lakes mile
lake.Hyper-Eutrophic System.Aggressive herbicide program eliminated
aquatic plants and led to algae dominated lakes.Algae mats have
been so thick that saplings have been seen growing on top of the
algae mats.
Management Program Clean-Flo Engineered Aeration installed in
May of 2009.Extremely aggressive beneficial bacteria treatment
program implemented in 2009 and 2010.Innovative Harvesting program
implemented in conjunction with the system.Commitment to ZERO
herbicide/algaecide use.
Results Muck reductions ranging from 6” to 11” in 2009.Lakes
largely clear of algae mats in August of 2010 for the first time in
over five years.
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Turnberry Lakes Treatment Area
Max Depth 6 feetMax Depth 16 feet
Max Depth 7 feet Max Depth 8 feet
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Turnberry Lakes Results
Turnberry Lake 3 (Biggest problem lake) July 2010
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Turnberry Lakes Results
Turnberry Lake 3 August/September 2010
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Turnberry Lakes Results
Turnberry Lakes 2010 “Secret Weapons”
Lake Clear Bacteria Weedoo Harvester Boat
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Turnberry Lakes Muck Reduction Results
April2009 Baseline
September2009(Season 1 Result)
September 2010 (Season 2 Result)
2 Season Cumula-tiveReductionAverage
MuckDepth
Avg.Muck Depth
Net Reduction
Avg.Muck Depth
Net Reduction
Lake 1(40 Acres, 15 Sample Sites)
40.00” 29.07 10.93” 22.80” 6.27” 17.20”
Lake 3(8 Acres 10 Sample Sites)
37.10” 32.73” 5.47” 29.25” 2.48” 8.95”
Lake 4(4 Acres 5 Sample Sites)
24.80” 16.20” 8.60” 14.80 1.40” 10.00”
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Turnberry Lakes Muck Reduction Results
Gravel exposed near shore on Lake 1 September 2010
These areas had more than 12” of muck above the gravel prior
to system implementation
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Collins Lake Scotia, 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 Aeration installed 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.No significant re-growth of milfoil or pondweed.Dissolved
oxygen maintained throughout water column all winter despite
shutting down the system for 3 months.Noticeable reduction in dead
plant material and muck in 2007.
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Collins Lake “Before” Pictures 2006
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Collins Lake “After” Pictures 2008 (Similar View of the
Lake)
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Collins Lake “Before” Pictures 2006
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Collins Lake “After” Pictures 2008 (Similar View of the
Lake)
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Collins Lake “After” Pictures 2008
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Collins Lake “After” Pictures 2008
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Lakes Bridgeport & Benbrook Fort 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 and 4,400 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 of continuous operation. Natural turnover
interrupted the process in 2010. We anticipate sustaining a minimum
of 4 mg/l DO continuously.
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Lakes Bridgeport & Benbrook Systems
Lake Bridgeport
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Lakes Bridgeport & Benbrook Systems In Action
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Lake Bridgeport Destratification Progress after 30 Days
Continuous Operation
0
2
4
6
8
10
12
14
16
18
200 5 10 15 20 25 30 35
Dep
th (m
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DO (mg/l)/Temp (oC)
BP Intake Area Profiles8/13/2010
DO BP-01Temp BP-01
0
2
4
6
8
10
12
14
16
18
200 5 10 15 20 25 30 35
Dep
th (m
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DO (mg/l)/Temp (oC)
BP Intake Area Profiles8/19/2010
DO BP-01Temp BP-01
0
2
4
6
8
10
12
14
16
18
200 5 10 15 20 25 30 35
Dep
th (m
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DO (mg/l)/Temp (oC)
BP Intake Area Profiles8/27/2010
DO BP-01Temp BP-01
0
2
4
6
8
10
12
14
16
18
200 5 10 15 20 25 30 35
Dep
th (m
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DO (mg/l)/Temp (oC)
BP Intake Area Profiles9/01/2010
DO BP-01Temp BP-01
0
2
4
6
8
10
12
14
16
18
200 5 10 15 20 25 30 35
Dep
th (m
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DO (mg/l)/Temp (oC)
BP Intake Area Profiles9/10/2010
DO BP-01Temp BP-01
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Tarrytown Upper Reservoir Tarrytown, New York
About the Lake 25 Acre lake, max depth 12 feetCompletely
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 treatment applied in July of 2010.
Results Milfoil and coontail uprooted from the bottom and
starting to fail in 30 days.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 60 days.
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Tarrytown Upper Reservoir System Design
Diffusers (placed on the bottom, not to scale they will be much
smaller)
Rotary Claw Unit Location housed in shed (not to scale will be
much smaller)
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Tarrytown Upper Reservoir – Day of Installation (Before)
Reference Points
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Tarrytown Upper Reservoir – After 60 Days
Reference Points
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Tarrytown Upper Reservoir – Results
View from Dock Area Along Southeast Shore
Installation Day (Before) After 60 Days
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Tarrytown Upper Reservoir – Results
View from Dock Area Along Southwest Shore
Installation Day (Before) After 60 Days
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Tarrytown Upper Reservoir – ResultsGoogle Earth Image June
18,
2010 (before) 60 Days after Installation
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Bel Marin Keys Novato, California
About the Lake 114 Acre man-made lake30 Acre Paddle Boat Lagoon
selected as pilot treatment areaBlue-Green Algae dominatedHighly
anoxic environment with DO near zero 15 feet from the bottom
Management Program Clean-Flo System installed in June of
2007.Results independently monitored by CLE Engineering
Results DO concentrations restored throughout the water column
in 60 days.Dramatic improvements in Total Phosphorus and many other
water quality parameters.Expanding deployment of Clean-Flo System
to other areas of the lake.
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Bel Marin Keys System Design
Diffusers (placed on the bottom, not to scale they will be much
smaller)
Compressor (not to scale much smaller)
Phase 1Phase 2Phase 3
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Bel Marin Keys Results – Phase I
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Bel Marin Keys Results – Phase I
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Willow Lake Kalamazoo, Michigan
About the Lake 7 Acre lake/pond.Completely over-run with
milfoil, filamentous algae, lily pads, and coontailSeven foot max
depth with 4 foot average depth
Management Program Clean-Flo System installed in June of
2007.One-time herbicide treatment for milfoil.Harvesting program
for lily pads.Bacteria and Enzyme treatment applied in July of
2007.
Results Filamentous algae problem eliminated.No significant
re-growth of milfoil.Coontail significantly reduced.Lily pads did
grow back after harvesting, however, we are starting to see tubers
“pop” to the surface.Clear signs of breakdown of organics in the
lake.
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Willow Lake “Before” Pictures June 18, 2007
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Willow Lake “After” Pictures June 23, 2007 (5 days after
installation of the CLEAN-FLO System)
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Willow Lake May 15, 2007 (Last Year. Notice How bad the Lake
looked)
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Willow Lake May 12, 2008 (Just under One Year Later)
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Lake Brown – Kissimmee FloridaAbout 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
chemical herbicides.Average muck reduction of 2’4” in 13
months.Swimming beach remained open for full season for the first
time in 6 years.
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Lake Brown Muck Reduction ResultsWater Depth Measurement
Points
Muck Measurement Reference Points 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’
8’5.5’
9’
5.5’
8’
5.5’
9’
5.5’
9’5.5’
8’
2’6” muck remaining
2’6” muck remaining
More than 9’ muck remaining
5.5’
8’
4.5’
6’
1
2
3
54
67
8
9
10
11A
B
C5.5’
8’
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Lake Brown – Florida
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Lake Powai, India
About the Lake 500+ acre lake in India.Hydrilla and Water
Hyacinth had taken over the lake.Lake heavily polluted from
watershed
Management Program Clean-Flo Engineered Aeration installed with
bacteria and enzyme treatment.Harvesting program initiated to
reduce Water Hyacinth.
Results Nutrient levels in the lake reduced by 90% in the first
year.Hydrilla and Water Hyacinth reduced to non-nuisance
levels.Significant improvement in all water quality indicators.
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Lake Powai, India – Results
Clean-Flo system Installed
Dissolved Oxygen at Bottom
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CLEAN-FLO system Installed
Lake Powai, India – Results
Phosphorus at Bottom
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CLEAN-FLO System Anticipating Questions 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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Working with Lake Savers
Lake SaversManagement Strategies for Healthier Lakes
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How we work with our Customers…
Information RequiredIdentification of goals and areas of
focus.
Depth profile.
Flow rates on outflows/retention time.
Weed and algae assessment.
Water quality data.
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How we work with Customers
1. Gather necessary data on your lake
2. Engineer a Clean-Flo System Design and Quote for your
lake
3. Present Design and Quote
4. Install & Manage System (Unique Lake Savers Leasing
Program)
CostNothing! In most cases
Nothing! In most cases
Nothing!
As quoted
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Lake Savers Leasing Program (Optional)
System Leasing:
Years 1 – 5 $XXXX per year
Years 6 – 10 $XXXX – 20% per year
Years 10+ $XXXX – 30% per year
Includes:InstallationSystem Maintenance and performance
monitoringBacteria and Enzymes for year oneFULL replacement/repair
of equipment at no additional cost. (Exceptions for vandalism,
lightening strikes/power surge and storm damage/flooding.)
Installation: $XXXX
Shipping: At cost
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Advantages of Leasing vs. Purchase of a Clean-Flo System
Lake Savers is responsible for ALL maintenance and repair. The
leasing agreement includes strict performance criteria for
maintaining the equipment in peak operating condition.The customer
is not making a capital investment in equipment that sits outdoors
and at the bottom of a lake 365 days a year.Under the leasing
agreement the equipment is guaranteed to be working in “as new”
condition for the life of the lease.Results and performance
monitoring is included in the lease. The leasing agreement offers
an “out clause” after 30 months if the system is not delivering
results as specified at lease inception.
NOTE: Lake Savers will quote a purchase option with a minimum 4
year service contract if requested. Lake Savers will NOT sell a
Clean-Flo System without a service contract.
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Other Costs:Installation of Electrical service to compressor
locations – customer responsibility.
Ongoing Costs:Electricity Costs – We can provide estimates as
designs are developed.
Additional Costs
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Lake Savers – Partial Track Record2007
Willow Lake Kalamazoo, MI – 8 acresWillowridge Lake , Kokomo, IN
– 8 acresSherman Lake Channel, Kalamazoo, MI – 5 acres
2008Lake Brown Kissimmee, FL – 60 acresSeveral additional ponds
– 4 – 6 acres
2009 Turnberry Lakes – 100 acresChippewa Lake (Channel) – 6
acres
2010 Scheduled InstallsLake Bridgeport Reservoir Fort Worth,
Texas – 700+ acre treatment area – DONELake Benbrook Reservoir Fort
Worth Texas – 800+ acre treatment area – DONEIndian Lake Dowagiac,
MI – 86 acre treatment area – DONEGreenwood Lake Greenwood Lake, NY
– 40 acre treatment area – DONEUpper Tarrytown Reservoir,
Tarrytown, NY – 30 acres – DONELittle Lakes, Frankfort, Indiana –
30 acres – Scheduled October 2010Massabesic Reservoir, Manchester,
NH – 225 acres – Scheduled October 2010
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Why Lake Savers!!
Time (years)
Cost
1 2 3 4 5 6 7 8 9 10
Deteriorating Water Body
Traditional Approaches Alone
Healthy Water Body
Healthy Water Body
Engineered Aeration/ Beneficial Bacteria & Enzyme Treatments
and Floating Islands
Healthy Water Body
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© Lake Savers 79
Summary
1. Most water bodies are overfed and out of balance.
2. Conventional strategies are primarily people management
strategies not lake management strategies.
3. Nutrient reduction (Internal & External) is the only
sustainable approach to Lake Restoration.
4. Lakes Need to Breath to Be Healthy!
5. Lake Savers can put your lake on a diet and exercise program
to restore health, balance and recreational quality.
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© Lake Savers 80
Questions & Comments…
Contacts:
John [email protected](269) 383.3400
