RRWC - Impaired Uses within the River Raisin Watershed

The following is a list of identified impairments within the River Raisin Watershed to be addressed in the River Raisin Watershed Management Plan.

IMPAIRED USE	POLLUTANTS	SOURCE	CAUSE
Public Water Supply	Nitrate	Fertilizers	Inadequate management of fertilizer use for urban/suburban/ag land
		Failing septic systems	Inadequate septic system management
	Phosphorus	Fertilizers	Inadequate management of fertilizer use for urban/suburban/ag land
	Pesticides		Improper pesticide use
	Sediment	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction
	BOD	Wastewater treatment plants	Inadequate wastewater treatment
	Hydrocarbons	Runoff	Inadequate stormwater management
	Metals (mercury)	Urban runoff	Inadequate stormwater management
		Atmospheric deposition	Car exhaust
			Power plant emissions
	E.coli	Urban/Ag runoff	Lack of adequate pet management
			Poor feedlot management
			Manure spreading
		Animals	Goose-friendly habitat
Aquatic & wildlife habitat	Sediment	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction
	Nutrients	Fertilizers	Inadequate management of fertilizer use for urban/suburban/ag land
	BOD	Wastewater treatment plants	Inadequate wastewater treatment
	Trash	Runoff	Inadequate stormwater management
		Dumping	Difficulty of enforcement
	Temperature	Urban runoff	Inattention to urban heat effects on runoff
		Summer heating	Lack of riparian vegetation
		Low flows
	Flow variability
	Exotic species	Ballast water/boats	Lack of adequate management for ballast water and boat cleaning
	High flows	Urban/Ag runoff	Inadequate stormwater management
			Tile drains/lack of buffer strips
Full/Partial Body Contact Recreation	E.coli	Urban/Ag runoff	Lack of adequate pet management
			Poor feedlot management
			Manure spreading
		Animals	Goose-friendly habitat
		Failing septic systems	Inadequate septic system management
	Sediment	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction
	Nutrients	Fertilizers	Inadequate management of fertilizer use for urban/suburban/ag land
	Large woody debris/trash	Eroding banks/runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			lack of woodlot management
	Pesticides		Improper pesticide use
	Hydrocarbons	Runoff	Inadequate stormwater management
Warmwater Fishery	Sediment	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction
	Metals (mercury)	Urban runoff	Inadequate stormwater management
		Atmospheric deposition	Car exhaust
			Power plant emissions
	Pesticides		Improper pesticide use

	Low Flow	Seasonal variability/withdrawals	Natural variability/lack of withdrawal oversight(?)

	High flows	Urban/Ag runoff	Inadequate stormwater management
			Tile drains
			Lack of buffer strips
	Hydrocarbons	Runoff	Inadequate stormwater management
	E.coli	Urban/Ag runoff	Lack of adequate pet management
			Poor feedlot management
			Manure spreading
		Animals	Goose-friendly habitat
	BOD	Wastewater treatment plants	Inadequate wastewater treatment
	Nutrients	Fertilizers	Inadequate management of fertilizer use for urban/suburban/ag land
	Large woody debris/trash	Eroding banks/runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			lack of woodlot management
THREATENED USE	POLLUTANTS	SOURCE	CAUSE
Agriculture	Sediment/Turbidity	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction
	High flows	Urban/Ag runoff	Inadequate stormwater management
			Tile drains
			Lack of buffer strips
Navigation	Sediment	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction
	Large woody debris/trash	Eroding banks/runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			lack of woodlot management
	Low Flow	Seasonal variability/withdrawals	Natural variability/lack of withdrawal oversight(?)
Industrial Use	Sediment/Turbidity	Urban/Ag runoff	Insufficient urban/suburban runoff management
			ag drains/lack of buffer strips
			lack of large woody debris and trash management
			Construction