03_BRBM_Broad_Data_Collection_07jun2011

Broad River Basin Hydrologic Model: Data Collection & AnalysisBroad River Basin Hydrologic Model: Data Collection & AnalysisJune 7, 2011Jason C. Doll, CPSWQSenior ScientistMoffatt & NicholRaleigh, North CarolinaJune 7, 2011Jason C. Doll, CPSWQSenior ScientistMoffatt & NicholRaleigh, North Carolina
Data Collection•Precipitation Gage Records (NOAA)•Agricultural Water Use–Crop Cover and Livestock Statistics–Recent Trends - Irrigation Rates & Groundwater vs Surface water•Municipal and Industrial Withdrawals–Greater than 100,000 gpd•Municipal and Industrial Discharges–Greater than 100,000 gpd•Census Data
Data Sources•Municipal & Industrial Withdrawals–NC Division of Water Resources–Water Users•Wastewater Discharges (NPDES)–NC Division of Water Quality–Dischargers•Agricultural Water Use–National Agricultural Statistics Service (NASS)–Ag Statistics from NC Dept. of Agriculture (NCDA)–Ag Extension Agents and Questionnaire
Municipal & Industrial Data Analysis•Withdrawals & Discharges–1930s to 2009–Monthly Time Series•Fill Gaps in Series–Linear Interpolation – Census Data–User Records of Facility Start/Stop Dates
Agricultural Data Analysis•Crop Acreage & Livestock Head–Ag Census data from NASS & NCDA (by County)–Distribute Ag in Basin with Ext Agents•Agricultural Water Use–Determine ET Rates/Crop Water Requirements–Subtract Demands from Weekly Rainfall–Supplement Difference with Irrigation•Daily Time Series of Weekly Values–Back to 1930s
Basin Map
7-4-3.5-3-2.5-2-1.5-1-0.500.5Buncombe Cleveland Gaston Henderson Lincoln McDowell Polk Rutherford Cherokee SC SpartanburgSCWater Usage (MGD)2009 Estimated Daily Water Use in the Broad River Basin (MGD)CropLivestockNet Industrial/Municipal Usage-13.9 MGD
00.20.40.60.811.21.41.6Buncombe Cleveland Gaston Henderson Lincoln McDowell Polk Rutherford Cherokee SC SpartanburgSC2009 Estimated Average Daily Agricultural Surface Water Usage within the Broad River Basin (MGD)LivestockCrop