STATUS OF GREEN LAKE
Status of Green Lake - 2013
• Lake Management Plan Approved
• Three Grants Awarded
– Protection Grant $200,000
– Two Small Scale Planning Grants
• Green Lake Tributary buffer assessment
• Green Lake Virtual Tour
• Aquatic Invasive Species Control Grant
– County A Estuary, Beyer’s Cove, City Millpond
• Diagnostic Feasibility Study
– Silver Creek
Impaired list (303 d)
for Oxygen and Phosphorus
• Total Phosphorus > 0.015 mg/l
• Oxygen very low at 10-20 foot depth
in Summer
– 3-7 ppm early 1900’s
– < 1 ppm today
• Cause: Primarily from non-point
pollution and internal loading
Aquatic Plants vs. No Aquatic Plants
Silver Creek Estuary
County K Marsh
County K Marsh Water
Quality on 8/16/13
• Turbid algal state – very
few plants
TMDL
• Total Maximum Daily Load via Clean
Water Act
– Maximum amount of Phosphorus that a
body of water can receive while still
meeting water quality standards
– TMDL completed by early 2015
• 319 funds available to help meet
Phosphorus reduction goals
Partner Accomplishments
• Additional USGS Monitoring
• Approved Lake Improvement Grants
– AIS Coordinator for Green Lake/Marquette
– Upland Buffer Inventory
– Federal NRCS Funding
– Big Green Lake Implementation Grant
– Virtual Big Green Lake Watershed Tour
Partner Accomplishments
• Pending Lake Improvement Grants
− New (second) Aquatic Plant Harvester
− AIS Control Grant
Plans for Improving &
Protecting Big Green Lake
Short Term:
– New Aquatic Plant Harvester
– AIS Control Grant for Actual Treatment
– Procure Funding for Long-Term Plans
Plans for Improving &
Protecting Big Green Lake
Long Term:
– Implement Best Management Practices
(BMPs)
– BMPs to Reduce Phosphorus Loading to Lake
– Revitalization of Adjacent Shallow Water
Systems (Silver Creek, City Millpond, Beyers Cove &
K Estuary)
– Implement Lake Management Plan (LMP)
LAND CONSERVATION
• Conservation Practices to be Designed
− 2012 signup* = 62 practices; $353,000
− 2013 signup* = 51 practices; $233,000
* USDA National Water Quality Initiative
Summary
Truly a Team Effort.
County’s major role is technical staff support.
The Land Conservation Department is going to
do everything that we can to meet goals.