The Hancock County Soil and Water Conservation District (SWCD) retained Davey to develop the Watershed Management Plan (WMP) for the Brandywine Creek Watershed, a 10-digit hydrologic unit code (HUC) watershed that spans Hancock and Shelby Counties and encompasses over 65,000 acres.
The WMP conforms to the U.S. Environmental Protection Agency’s nine elements of watershed plans and to the Indiana Department of Environmental Management’s (IDEM’s) 2009 WMP checklist. Davey conducted the following tasks:
- Assisted the SWCD with developing a steering committee composed of stakeholders from Hancock and Shelby counties.
- Facilitated 3 public outreach meetings and 12 steering committee meetings to identify critical areas and to develop a consensus-driven WMP.
- Collected and analyzed macroinvertebrate data, water chemistry data, Qualitative Habitat Evaluation Index (QHEI) data, and discharge data.
- Analyzed historic water quality data from multiple sources.
- Assembled information on planning efforts related to water quality developed by municipal, township, and county entities.
- Utilized the Spreadsheet Tool for the Estimation of Pollutant Load (STEPL) to estimate sediment and nutrient pollutant loading in the 12-digit HUC subwatersheds.
- Conducted desktop and windshield surveys to identify critical areas in the watershed.
- Analyzed extensive geographic information system (GIS) data to further understand watershed dynamics.
- Authored the comprehensive WMP document.
Davey began work in fall 2010 and submitted the draft for agency review in December 2011. IDEM approved the Brandywine Creek WMP in January 2012, making the watershed eligible for future Section 319 grant funding. Funding for this project was provided by an Indiana Department of Natural Resources Lake and River Enhancement (LARE) program grant.