lakes and pond management for homeowners · traditional uses • aerial photos • bathymetric maps...
TRANSCRIPT
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The Nine Lakes Watershed Partnership Presents
Lakes and Pond Managementfor Homeowners
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Thanks to Our Friends
Flint Creek/Spring
Creek Watershed
Partnership
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Thanks to Our Friends
Flint Creek/Spring
Creek Watershed
Partnership
Keith Gray Mike Adam Faye Sinnott
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Residential Pond
Maintenance
Keith Gray
Integrated Lakes
Management
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Detention PondsSmall, shallow, nutrient rich, intended for storm water control.
“Flashy”
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A pond may serve one
or multiple functions
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Up and Downstream Influences
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Water + Sunlight + Nutrients = Algae
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Balance
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Heidi Natura, Living Habitats
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www.cbgshoreline.org
Chicago Botanical Garden
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When things are out of balance…
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1/4 to 1/3 of
the pond’s
bottom
should have
aquatic plants
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Management Options
• Reactive
• Restoration
• Proactive
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Kill what you don’t want
✓Aquatic
herbicides
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Take away the sunlight
Dyes Lilies
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Harvesting
• Loading
• Transport
• Disposal
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Dredging: Removing the Nutrient Bank
• Loading
• Transport
• Disposal
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Nutrient Deactivation
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Aeration
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Biological / Bio-Islands
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Enzymes and Bacteria
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Case Studies
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Sherman Park
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Image: Kasco
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Lincoln Park Lagoon
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Kurtis Pond
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Thank you!
Questions? Questions?
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Mike Adam, Senior Biologist
Lake/Pond Management Plans
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Lake Management Plans
• A document that guides your lake management decisions.
• Encourages partnerships between concerned citizens, special interest groups, and resource management agencies.
• Identifies the concerns regarding the lake.
• Sets realistic goals, objectives and actions.
• Identifies needed funds and personnel.
• Fluid – can be changed over time as lake issues or management techniques change.
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7 Steps for Adaptive Lake Management Planning
1. Identify Stakeholders
2. Gather Information & Identify Concerns
3. Develop Goals, Actions, Objectives
4. Evaluate Solutions & Alternatives
5. Take Action
6. Monitor & Evaluate
7. Re-assess & Modify
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1. Identify Stakeholders
• Identify all stakeholders• Broad community support
• Identify Communication Pathways
• Examples: Open Public Meetings, Workshops, Social Media, News Releases, Questionnaires, Newsletter, Website, Emails
• Identify groups/individuals who can provide support
• Volunteers, Government Entities, Consultants, etc.
• Establish a Lake Planning Committee
Lake
Associations
Bottom Owners
Anglers &
Boaters
Businesses
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2. Gather Information & Identify Concerns
• Purpose of this step is to learn as much as possible about the lake.
• Identify gaps or missing data.
• Use all information available to identify problems and concerns regarding your lake.
• Nominal Group Technique
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Gathering Information & Data
The Lake Planning Committee needs to collect the
following:
• Maps and historical documents about the lake and
traditional uses
• Aerial photos
• Bathymetric maps
• State and local regulations and ordinances
• Technical information/research on topics of concern
• WQ, aquatic plants, fish, wildlife
• Watershed map and land use characteristics
• Social and demographic trends
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Volunteer Lake Monitoring Program - VLMP
• Water Clarity (Secchi Disk transparency)
• Water Chemistry
• Dissolved Oxygen / Temperature Profiles
• Online Database
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Technical Reports
2015Epilimnion
DATE DEPTH ALK TKN NH3-N NO3-N TP SRP Cl- TDS TSS TS TVSSECCH
ICOND pH DO
13-May 3 174 0.94 <0.1 0.071 0.081 0.011 154 477 3.8 510 76 3.80 0.8550 8.13 8.92
17-Jun 3 181 1.40 <0.1 <0.05 0.114 0.022 152 475 10.0 538 133 3.00 0.8500 8.54 9.25
15-Jul 3 172 1.45 <0.1 <0.05 0.200 0.075 131 434 13.0 474 98 2.78 0.7680 8.49 6.78
12-Aug 3 169 1.86 <0.1 <0.05 0.305 0.168 111 398 15.0 446 97 1.60 0.6970 8.45 4.86
16-Sep 3 172 2.05 <0.1 <0.05 0.278 0.131 120 398 13.0 463 111 2.50 0.6980 8.51 7.76
Average 174 1.54 <0.1 0.071k 0.196 0.081 134 436 11.0 486 103 2.74 0.7736 8.42 7.51
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Valuable Data
Lake
Management
Plan
Stake
Holders /
Lake Users
Water
Chemistry
Wildlife
Secchi
(VLMP)
Shoreline
Erosion
Survey
Fish Survey
Plant Survey
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3. Develop Vision, Goals, Objectives & Actions
• Vision: Your vision communicates what your group believes are the ideal conditions for your community “the dream”.
• Goals: General statement about what the group hopes to accomplish over the long term.
• Objectives identify specific measurable results to aim for towards each goal.
• Actions describe specific ways the group will reach it’s objectives.
• Successful plans have clearly defined goals and objectives that are ATTAINABLE.
What is your vision
for your lake in 20
years?
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3. Vision, Goals, Objectives, & Actions
Overall Vision: “Our vision for the Fox River watershed in Illinois is to balance all the uses and demands on our natural resources while preserving and enhancing a healthy environment.” [ Fox River Ecosystem Partnership]
Separate goals by lake issues with objectives and specific actions.
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4. Evaluate Solutions & Alternatives
• Many management options available.
• Assess based on feasibility for your lake (money, time, lake user needs, technical feasibility).
• Use Management Option Tables to help guide you!
Option Pros Cons Notes/CostsNo Action •No change in current strategy •Plants may continue to expand cause water
quality issue, fish kills or recreational issues.
•Relatively inexpensive •Possibility for overtreatment
•Selectivity is possible •Chemical resistence over time
•Seasonal control can be
accomplished
•Increased algae
•Improved recreation •Depending on the chemical, use restrictions
may be needed for a short time
•No recreation restrictions •Disposal of plants
•No chemicals •Costs for maintaining equipment
•Off season storage
•Labor costs
•Non-selective
•Inexpensive •Limited areas can be harvested
•Selectivity is possible •Labor intensive
•Disposal of plants
•Biological control •Expensive •Weevils need
overwintering habitat
•No chemicals •Results are sporatic and often cyclical •May be negatively
impacted by boating
activities
Weevil population can be affected by
panfish predation
•Found naturally in Lake
County lakes
Water Milfoil Weevil
Lake Management Issue - Aquatic Plants
Aquatic Herbicides
Mechanical Harvesting •New harvesters can cost >
$100,000
Hand Removal
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Management Options: Aquatic Plants
• Identify Bottom Ownership
• Work with different HOA or
bottom owners to create a
joint treatment plan it saves
money and prevents over
treatment
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Management Options: Fish
Fish and Aquatic Plants
• Healthy plants = Healthy fish
• Cover and Protection (Too much
aquatic plants can create a stunted
population of pan-fish)
• Set aside areas for aquatic plants
• Properly designed and installed
Aerators - if needed
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5. Take Action
• Write your plan.
• Create a timeline.
• Begin on your action steps.
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6. Monitor & Evaluate
• Develop a mechanism for tracking activities and monitoring successes and obstacles.
• Monitoring process may require collecting data
• Water Quality
• Plant Surveys
• Community Surveys
• Project documentation critical!
• Detailed records of activities, expenses, time and labor.
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7. Re-assess & Modify
• Lake Management Plans are fluid and can change.
• Lakes change over time
• Needs may change over time.
• New management options may be needed or become available
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Resources - Documents
• Lake Management Plan Guide Overview
• 7 Steps
• Lake Management Plan Template
• Lake Management Option Tables
• Goal Worksheet & Goal Examples
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Resources - Documents
• Lake Management Plan Guide Overview
• 7 Steps
• Lake Management Plan Template
• Lake Management Option Tables
• Goal Worksheet & Goal Examples
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SAVING OUR WATERS
KEEPING WATER CLEAN AND ABUNDANT
CHALLENGES AND OPPORTUNITIES
FLINT CREEK/SPRING CREEK WATERSHEDS PARTNERSHIP
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WE ALL LIVE IN A WATERSHED – AN AREA DRAINED BY A RIVER OR STREAM
SYSTEM OR LAKE NETWORK
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OUR WATERSHEDS ARE CHALLENGED:ACCORDING TO THE EPA: TOO MUCH PHOSPHORUS AND TOO MUCH TOTAL
SUSPENDED SEDIMENTS (TSS)
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SLOW DOWN THE WATER; SOAK UP THE RAIN
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RAISE THE BLADE; CONSIDER STRATEGIC RAINGARDENS
CUT YOUR GRASS NO SHORTER THAN 3 INCHES
PLANT “WARM” GRASSES SUCH AS ZOYSIA OR BUFFALO GRASS, RATHER THAN
“COOL” GRASSES, SUCH AS FESCUE AND ESPECIALLY NOT KY BLUE GRASS!
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STORM DRAINS
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BARRINGTON AREA COUNCIL
OF GOVERNMENTS
HAS MAPPED RECHARGE AREAS
MOST OF THE BACOG AREA’S
SHALLOW AQUIFERS ARE
RESUPPLIED BY RECHARGE
AREAS EITHER IN THE SPRING
CREEK WATERSHED OR FARTHER
WEST. DEEP SANDSTONE
AQUIFERS’ RECHARGE IS IN WI.
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WE CAN’T TAKE DRINKING
WATER SUPPLIES FOR GRANTED
WATER IN OUR STREAMS AND
STORM DRAINS IS LEAVING OUR
AREA!
WE MUST SLOW DOWN THE
WATER
AND SOAK UP THE RAIN! SO
MORE OF IT STAYS IN OUR
AREA…IN OUR SOILS AND
WETLANDS OR IN OUR
AQUIFERS!
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DEEP AQUIFERS EXPERIENCE
OVER-CONSUMPTION
- OVER-CONSUMPTION (FINITE
SUPPLY)
- LOSS/MODIFICATION OF
RECHARGE AREAS
- DROUGHT (SUPPLY
DECREASES/DEMAND
INCREASES
- CONTAMINATION
(INCLUDING SALT)
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PESTICIDES IN STREAMS
AT LEAST ONE PESTICIDE IN
MORE THAN HALF OF THE 100
STREAMS SAMPLED IN THE
MIDWEST EXCEEDED A TOXICITY
THRESHOLD PREDICTED TO
CAUSE HARM TO AQUATIC
INSECTS AND OTHER STREAM
ORGANISMS, RANGING FROM
ACUTE EFFECTS (MORTALITY
AFTER SHORT-TERM EXPOSURE)
IN 12 STREAMS TO CHRONIC
EFFECTS (LONGER TERM
IMPAIRMENTS TO
REPRODUCTION AND
DEVELOPMENT) IN 41 STREAMS.
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THANK YOU