Project Description

English Lake Management and Protection Plan

In 1996, NES began working with the English Lake Protection and Rehabilitation District to develop a Lake Management and Protection Plan for English Lake. Through water quality data monitoring conducted by NES, it was determined that the lake is phosphorus limited.

Phosphorus loading analyses based on land use type were conducted to identify potential loading sources. After identification of phosphorus loading sources, steps were taken to develop alternative control measures.

Alternatives for control include:

  • Wetland restoration
  • Rerouting and relocation of agricultural drain tiles
  • Development of detention basins, cattle relocation and buffer strip installation.

The management alternatives were prioritized based on feasibility and cost-benefit analyses. NES has worked with the WDNR and NRCS to relocate cattle identified as the highest contributor to the annual phosphorus load to a location outside of the lake’s watershed. NES has also designed a wetland detention basin to treat agricultural runoff and tile discharge. The wetland detention basin was constructed in 1998-99.

In 2007, the second priority alternative, installation of the approximately 10-acre northern buffer strip, was begun and a grant through the WDNR was applied for and received. The project will result in the protection of surface and groundwater quality by removing nutrients, sediments, and animal-derived organic matter and other pollutants from surface water runoff, subsurface flow and near root zone groundwater. This will be accomplished through natural processes provided by the vegetated buffer strip, such as deposition, absorption, adsorption, plant uptake and de-nitrification.

The northern buffer strip establishment is designed to intercept surface water run-off from surrounding agricultural lands, increase the water quality of the lake, beautify the community, increase habitat for wildlife, and reduce long-term maintenance costs.

Two proposed lake protection activities that will take place within the northern buffer zone consist of:

  1. Berm an existing ditch that is draining a historical forested wetland
  2. Vegetate all areas currently under agricultural land practices with native plants

Project Details

Location

Manitowoc County, Wisconsin

Category

Native Habitat Restoration