This resources webpage is associated with a full-day workshop on estimating pollutant load reductions associated with conservation projects using EPA's Pollutant Load Estimation Tool (PLET). The workshop was held in July of 2022. A YouTube Playlist with video from the entire workshop is linked below in addition to many other resources referenced in the workshop.
Please direct any questions to Adam Lehmann (Adam.Lehmann@Hamilton-Co.org).
Please direct any questions to Adam Lehmann (Adam.Lehmann@Hamilton-Co.org).
Links:
YouTube Playlist of the workshop
PLET website
PLET User's Guide
PLET login page
Technical Release 55 (TR-55) -- Curve Number discussion and tables in chapter 2
Geospatial Data Gateway -- Land use data (NLCD & Cropland Dataset) can be downloaded from this GIS data clearinghouse
Agriculture Handbook 537 (AR-537) -- the Universal Soil Loss Equation handbook
Agriculture Handbook 703 (AR-703) -- the Revised Universal Soil Loss Equation handbook
Web Soil Survey -- to download SSURGO soil data
SSURGO Table & Column Description -- to find in which SSURGO table a parameter is located
Soil Data Access -- to query specific soil parameters
Bank Erosion Hazard Index (BEHI) -- to get a sense of bank erosion risk
Center for Watershed Protection, Stormwater Retrofit Practices, Manual 3, 2007. -- for efficiency factors for stromwater BMPs. This website seems to not have any info on it at the moment, hopefully CWP fixes it soon.
International Stormwater BMP Database -- another resource for efficiency factors for stromwater BMPs.
PLET website
PLET User's Guide
PLET login page
Technical Release 55 (TR-55) -- Curve Number discussion and tables in chapter 2
Geospatial Data Gateway -- Land use data (NLCD & Cropland Dataset) can be downloaded from this GIS data clearinghouse
Agriculture Handbook 537 (AR-537) -- the Universal Soil Loss Equation handbook
Agriculture Handbook 703 (AR-703) -- the Revised Universal Soil Loss Equation handbook
Web Soil Survey -- to download SSURGO soil data
SSURGO Table & Column Description -- to find in which SSURGO table a parameter is located
Soil Data Access -- to query specific soil parameters
Bank Erosion Hazard Index (BEHI) -- to get a sense of bank erosion risk
Center for Watershed Protection, Stormwater Retrofit Practices, Manual 3, 2007. -- for efficiency factors for stromwater BMPs. This website seems to not have any info on it at the moment, hopefully CWP fixes it soon.
International Stormwater BMP Database -- another resource for efficiency factors for stromwater BMPs.
Downloadables:
| plet_diagram-load_est_workshop2022.png |
| OSUE_bulletin594_1979.pdf |
| Ohio RUSLE factors 2002.pdf |
| soil_data_access_query.txt |
| gis_data_for_example.zip |
| spreadsheet_calcs_for example.xlsx |
| arcgis_10_tool-ls_factor_from_dem_v2.zip |
| arcgis_pro_tool-ls_factor_from_dem_v2.zip |