Data for Nitrogen Sources and Loading to Groundwater in Tulare Lake Basin and Salinas valley

Year
2012
Associated Project
Addressing Nitrate in California's Drinking Water

Data for Groundwater Nitrate SWRCB SBX2, Technical Report 2: Nitrogen Sources and Loading to Groundwater is available for download below. This technical report documents the extent and magnitude of nitrogen loading from anthropogenic sources to groundwater in the Tulare Lake Basin and Salinas Valley. A viewer for the source data will be available soon.

Associated Files
Figure 2: Agricultural Sources Overview in Tulare Lake Basin
Figure 4: Typical Annual Nitrogen Fertilization Rates
Figure 5: Annual Nitrogen Removal Rate 2003-2007
Figure 8: Septic-Derived Nitrate Leaching Rates
Figure 9: Simulated Synthetic Fertilizer Application
Figure 10: Simulated Land Applied Nitrogen
Figure 12: Nitrogen Applied as Soil Amendment from Dairy Manure Exports by County
Figure 13: Nitrogen Applied as Soil Amendment from Dairy Manure Exports in Study Area
Figure 14: Simulated Nitrogen Harvested in 2005 from all Cropland, including Alfalfa
Figure 15: Simulated Total Groundwater Loading Scenario D
Figure 16: Simulated Total Groundwater Loading Scenario C by County
Figure 17: Simulated Total Groundwater Loading Scenario C in Study Area
Figure 18: Simulated Total Groundwater Loading Scenario B by County
Figure 19: Simulated Total Groundwater Loading Scenario B in Study Area
Figure 20: Simulated Total Groundwater Loading Scenario A in Study Area
Figure 21: Groundwater Loading from Non-Cropland Sources
Figure 27: CAML Land Cover
Figure 28: BAU Modeling Scenario
Figure 29: Smart Growth Modeling Scenario
Figure 30: BAU Agriculture Removal Modeling Scenario
Figure 31: Current Land Use Converted to Urban by 2050
Figure 32: 2010 CAML Land Cover
Figure 38: 1946 Land Use from DWR
Figure 41: 1990 Land Use from DWR
Figure 40: Backcasted 1977 Land Cover Map
Figure 39: Backcasted 1960 Land Cover Map
Figure 58: Percent of Houses on Septic Systems, 1990
Figure 59: Septic Systems per Hectare in Study Area
Figure 60: Septic Systems Nitrate Loading in Study Area

Resource Type

Datasets