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Table 1 (con't). Designated Levels for Constituents in Soils and Cleanup Goals for Groundwater <br /> Western Farm Service, Vernalis <br /> Footnotes <br /> Range of highest concentrations in soil include the five highest values detected. <br /> 2 Range of highest concentrations in groundwater include the five highest values detected in monitoring wells be <br /> 1999 and 2002. <br /> 3 Reference:A Compilation of Water Quality Goals, Regional Water Quality Control Board, Central Valley Region, year 2000 edition. <br /> 4 If the water quality limit is lower than the method detection limit, the method detection limit becomes the cleanup goal. <br /> 5 Water Quality Limit multiplied by the Attenuation Factor and Leachability Factor, valid for 10-30 feet separation from soil to water table. <br /> If there is less than 10 feet of separation to water table, Attenuation Factor decreases by factor of 10. <br /> 6 Cleanup goal for nitrate-N in groundwater is background concentrations, since background is higher than the water quality limit. <br /> Between June 1998 and August 2002, nitrate-N concentration has varied from 8 to 22 mg/l in upgradient monitoring wells MW-4 and MW-1. <br /> Abbreviations <br /> N/S Not sampled <br /> < 5.0 Not detected at this detection limit <br /> Cal/EPA California Environmental Protection Agency <br /> DHS Department of Health Services <br /> IRIS Integrated Risk Information System <br /> OEHHA Office of Environmental Health Hazard Assessment <br /> MCL Maximum Contaminant Level <br /> USEPA United States Environmental Protection Agency <br /> 5 March 2003 <br />