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Watershed Achievements Report

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Lower Mississippi River Basin <strong>Watershed</strong> <strong>Achievements</strong> <strong>Report</strong> 2015<br />

in the Vermillion River and its tributaries; track project<br />

grant, matching funds and expenditures; and complete<br />

required reporting.<br />

Mississippi River – Winona<br />

Downtown Winona Pre-Mississippi River Rain Garden<br />

– 2015<br />

Sponsor: Port Authority of Winona<br />

Funding: Clean Water Partnership (Grant) $41,324<br />

Purpose: This project will protect the Mississippi River at<br />

Winona, MN by the installation of a downtown Winona<br />

parking lot rain garden. This project will improve the<br />

Mississippi River water quality by removing an incorrectly<br />

sloped, 100% impervious parking lot surface then<br />

regrading and resurfacing the parking lot to direct runoff<br />

into a central rain garden planted with deep-rooted<br />

native vegetation that will filter pollutants such as oil,<br />

grease, dirt, debris, broken glass, road salt, sand and<br />

unseen nutrients before any runoff reaches Winona’s<br />

stormwater system and the Mississippi River. The rain<br />

garden will also serve to slow the velocity of runoff and<br />

reduce the likelihood of flooding which is a regular<br />

concern in Winona.<br />

Zumbro River<br />

Zumbro River Ultra-Urban Vol-TSS-FeC Reduction –<br />

2014<br />

Sponsor: City of Rochester<br />

Funding: Section 319 (Grant) $300,000<br />

Purpose: Reduce turbidity and fecal coliform bacteria<br />

loading in the receiving waters for downtown Rochester<br />

by identifying feasible volume control locations in the<br />

project area and demonstrating green infrastructure<br />

designs, benefits, and maintenance practices before<br />

redevelopment opportunities arise. In addition to<br />

delineating these areas, volume control practices need<br />

to be demonstrated to help “sell” their effectiveness and<br />

attractiveness and to clarify their maintenance needs.<br />

Minnesota Pollution Control Agency www.pca.state.mn.us 61

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