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.