South Branch Sub Watershed

From watershed management plan:

Priority areas were identified in the watershed based on lands that are contributing, or have the potential to contribute, most of the pollutants impacting water quality. By identifying priority areas, implementation can be targeted to the places where the most benefit can be achieved. Three different types of areas were prioritized in the PPRW – protection, agricultural management, and urban management.

Most of the southern two thirds of the South Branch Sub Watershed is a High Priority Agricultural Management Area and suspected to contain most of the agricultural related pollutant sources impairing or threatening water quality in the area.

Agricultural Management Areas - The prioritization of agricultural management areas is based on significant water body impairments, estimated pollutant loadings (SWAT model), amount of agriculture land cover and problems identified by EGLE staff, MDNR Fisheries staff, Van Buren County Drain Commissioner or through the volunteer inventory process. Section 8.2 of the management plan provides more details. The following tasks should be focused in the high and medium priority agricultural management areas.

• Utilize alternative drain maintenance/ construction techniques (such as two stage ditch design, natural river restoration techniques - j-hooks, cross vanes, etc)
• Restore riparian buffers and stabilize eroding streambanks
• Restore wetlands 
• Prevent/limit livestock access (fencing, crossings structures, alternative water sources)
• Install agricultural BMPs (filter strips, no-till, cover crops, grassed waterways, etc)
• Protect wetlands
• Expand disposal options for agricultural chemicals
• Develop and implement manure management plans
• Utilize soil testing to determine appropriate application rates for fertilizers and pesticides
• Utilize integrated pest management
• Construct secondary containment facilities for chemical/fuel handling areas
• Improve and/or enforce septage waste disposal regulations

The area around the city of Paw Paw is a High Priority Urban Management Area while the area around the lakes on west side are Medium Priority and suspected to contain most of the urban related pollutant sources impairing or threatening water quality in this area.

Urban Management Areas - The prioritization of urban management areas is based on significant water body impairments, amount of urban land cover and problems identified by MDEQ staff, MDNR Fisheries staff, Van Buren County Drain Commissioner or through the volunteer inventory process. Section 8.3 of the management plan provides more details. The following tasks should be focused in the high and medium priority urban management areas.

• Utilize stormwater best management practices (road/parking lot sweeping, stormceptors, rain gardens, constructed wetlands, vegetated swales, etc)
• Enact stormwater and post construction control ordinances
• Identify and correct illicit connections or discharges to stormwater system
• Utilize best management practices for road maintenance (such as alternative deicing methods)
• Enact a phosphorus lawn fertilizer ban
• Increase or expand household hazardous waste disposal options
• Distribute spill kits
• Properly maintain and design municipal sewer system infrastructure