Water Protection Activities in Washtenaw County

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B1 - Plan 1: Upper Grand River Watershed Management Plan Plan Date: December 1, 2003 The majority of the Upper Grand River Watershed (UGRW) lies within Jackson County with the remaining portions in Ingham, Eaton, Hillsdale and Washtenaw Counties. The UGRW covers a total of approximately 700 square miles (447,923 acres) and is divided into seven sub-basins. Only relatively small, “headwaters” portions of the Portage River sub-basin (106,441 acres) and the Center, Grass and Wolf Lake sub-basin (49,465 acres) are located in Lyndon and Sylvan Townships in Washtenaw County. Drainage is in a southwesterly direction out of Washtenaw County. Total Maximum Daily Load (TMDL) allocations were prepared in 2003 for sections of the Grand River and Portage River to address issues of low dissolved oxygen (D.O.), pathogens and Water Quality Standards violations. Additional TMDLs for the UGRW are scheduled in the future (2007- 2011) for mercury, pathogens, low dissolved oxygen, fish consumption advisories, polychlorinated biphenyls and Water Quality Standards violations. None of the water bodies identified for future TMDL allocation are located in Washtenaw County. In the Portage River sub-basin approximately 50 percent of the land is agricultural in use, eight percent is urban residential and one percent is urban commercial/industrial. Issues of concern include nitrate/nitrite loading, elevated erosion rates and encroachment on floodplains and riparian buffers. The Center, Grass and Wolf Lake sub-basin is predominantly agricultural with approximately 15 percent of the area urbanresidential. This sub-basin exhibits high potential for stream 130 bank and shoreline erosion due to high levels of overland runoff and relatively high “off-field” erosion. Recommended BMPs include the use of buffers/filter strips, grassed swales, grassed waterways, conservation tillage, cover/green manure crop, terraces, stream bank stabilization, bio-retention areas, constructed wetlands, nutrient management, live stock fencing and wet ponds. B1 Map:
B2 - Plan 2: Huron Chain of Lakes Watershed Management Plan Plan Date: November 2005 The Huron Chain of Lakes Watershed (HCLW) covers 253 square miles (161,919 acres), representing 28% of the Huron River watershed. The majority of the watershed lies within Livingston County, with the eastern portions in southwest Oakland County and the southern most areas in Dexter, Webster, Northfield and Salem townships in Washtenaw County. Within this watershed area, the Huron River flows southwest for 27 miles through a series of wetlands and lakes prior to continuing south through Washtenaw County. While the HCLW contains several areas of high quality natural habitat, aquatic ecosystems, and recreational opportunities, analysis of existing data indicate that the HCLW also has stretches of medium and low quality waterways that require mitigation of existing impairments. Identified impairments include: high nutrient loading, altered hydrology, sedimentation, soil erosion, pathogens, salts, organic compounds, heavy metals, elevated water temperature and debris/litter. Additionally, three TMDLs for phosphorus have been established in the watershed for Brighton, Strawberry, and Ore Lakes. Six TMDLs for other pollutants are scheduled for future (2007-2013) establishment in the watershed. One TMDL is scheduled for 2009 in Washtenaw County for a “poor macro invertebrate population” in the Horseshoe Lake Outlet Drain. A total of 96 Best Management Practices (BMPs) are identified in the action plan to mitigate these impairments. Included are Managerial Actions (ordinances, policies, studies, education, illicit discharge elimination, funding), Vegetative Management Alternatives (wetlands, buffers, grassed swales, habitat 131 restoration, soil stabilization) and Structural Management Alternatives (storm water retention/detention basins, infiltration trenches, culvert maintenance/repair, grade stabilization, sediment trapping). Not all BMPs apply to, or have been implemented by, all cities, villages and townships within the HCLW. B2 Map:
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Water Protection Activities in Wash
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Acknowledgements Water Protection A
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Executive Summary Introduction The
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Local Water Quality Information The
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TABLE OF CONTENTS Section Page # Se
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MAPS, FIGURES, AND TABLES Map # Tit
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1.0 Introduction Background In Sept
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2.0 Groundwater Groundwater is a vi
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2.1 Conditions and Trends The prima
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2.2 Groundwater Protection Activiti
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Activity #5 Wellhead Protection Cle
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Activity #8 Groundwater Withdrawal
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2.3 Groundwater Challenges and Resp
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Map 5: Groundwater Arsenic Distribu
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Map 6: Groundwater Nitrate Distribu
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Challenge # 4: Part 201 Sites Part
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Challenge # 5: Landfills The rules
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Challenge # 6: Leaking Underground
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Gelman Sciences Inc. 1,4-dioxane Re
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2.4 Groundwater Organizations Leade
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3.0 Surface Water Surface water is
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Table 2: Michigan’s Designated Us
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Table 3: Total Maximum Daily Load S
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● CWA Section 319 Grants - Sectio
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Activity #12 Michigan Drain Code Mo
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Activity #13 Inland Lake Level Act
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Table 4: BMP Examples (Continued) P
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Public Beaches Tested in Washtenaw
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3.3 Challenges and Responses Surfac
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The Rules of the Washtenaw County D
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Rain gardens have been installed on
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The Community Partners for Clean St
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Most, if not all, of the local unit
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Watershed Management Plans outline
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Challenge # 15 Point Source Dischar
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Challenge # 16 Community Wastewater
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● Home Toxics Reduction Program
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3.5 Local Tools There are many ordi
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APPENDIX A: Local Unit of Governmen
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NPDES Poi int Source Disccharge Per
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CCR Table continued 71
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A2: Augusta Township Challenging gr
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A4: Dexter Township As determined f
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Page 147 and 148: B5 - Plan 5: Middle One Rouge River
Page 149 and 150: B6 - Plan 6: Lower One Rouge River
Page 151 and 152: B8 - Plan 8: Stony Creek Watershed
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Page 155 and 156: Watershed Plan BMP Title BMP Descri
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Water Protection Activities in Washtenaw County

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