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Use of GIS to Predict Pollution Contents in Surface Water Runoff

Learn how GIS technology is utilized to predict pollution contents in surface water runoff. Explore data sources and models used, such as BASINS and HSPF, to assess pollutants and impacts on watersheds and land use. Discover how GIS helps locate impaired reaches and assess contaminants, enabling better pollution management strategies.

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Use of GIS to Predict Pollution Contents in Surface Water Runoff

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  1. Use of GIS to Predict Pollution Contents in Surface Water Runoff By Muhammad Kashif Gill kashif@cc.usu.edu435-797-6456

  2. Introduction • Pollution problems in surface water • What EPA says • How GIS helps

  3. Objectives • To locate impaired reaches • To evaluate the extent of contaminants

  4. Data Sources • BASINS (Better Assessment Science Integrating Point and Nonpoint Sources) • BASINS Utilities • USGS and EPA Data Sources

  5. Project Area

  6. BASINS Models • HSPF (Hydrologic simulation program, FORTRAN) • Qual2e • PLOAD • Swat

  7. PLOAD • Estimation of nonpoint sources pollution • Allowance to use BMP’s in calculation • Wider Applicability

  8. PLOAD Inputs • Landuse data • Watershed data • BMP (Optional) • Pollutant loading rate • Pollutant reduction BMP’s tables (Optional)

  9. Export Coefficient Method LP= ∑U ( LPU * AU ) where LP = Pollutant load ,lbs LPU = Pollutant loading rate for landuse type u, lbs/acre/yr AU = Area of land use type u, acres

  10. OUTPUT • Total pollutant loads in watershed • Per acre pollutant load in watershed

  11. Pollutants • BOD • COD • NOX • NH3 • TP • DP • TSS • TDS • TKN

  12. http://www.eq.state.ut.us/EQWQ/watersheds/bear/Bear_river_2001_assess.pdfhttp://www.eq.state.ut.us/EQWQ/watersheds/bear/Bear_river_2001_assess.pdf

  13. EMC

  14. Pollutant Layouts TP NOX NH3 DP

  15. Pollutant Layouts BOD COD TSS TDS

  16. Conclusions/Future Work • Major area in the watershed is severely affected by Phosphorous and Nitrogen • BASINS package can be utilized further to account for BMPs

  17. Thanks…

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