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Tier 1 Environmental Screening Levels Surfer <br /> (Screening Levels For Specific Environmental Concerns) SFBRWQ s <br /> TPHasolines Surfer Version: <br /> (g ) October 2005 <br /> ESLs Exceeded 'X' erres ria( ) Ecological IndoofAlr Vapor Emissions <br /> Further evaluation of identified Impacts (ug/m3),rr To Indoor Air <br /> concerns recommended. 3.6E+01 (Use soil gas) <br /> ross Human Direct <br /> Contamination Health Exposure <br /> 5.0E+03 Im acts 6.0E+03 <br /> .......................................... m k ................ <br /> SOII (mg/kg) SOII GBS (ug/ <br /> m3) <br /> Input Site Concentration FLowest Soil ESL: 1.0E+02 = 7.2E+04 <br /> Soil(mg/kg): 400 X Leaching <br /> 1.0E+02 <br /> .......................................... ................................. <br /> Impacts to -- Groundwater Vapor.Emissions <br /> Aquatic Habitats To Indoor Air <br /> 5.0E+02 Lowest GW ESL: 1.0E+02 (Use soil gas) <br /> Gross Human Drinking Water <br /> Contamination Health (toxicity) <br /> . 1.0E+02 Impacts 2.1E+02 <br /> Reference: <br /> Screening For Environmental Concerns at Sites With Contaminated Soil and <br /> Groundwater (February 2005), San Francisco Bay Regional Water Quality Control <br /> Board, California EPA,http://www.waterboards.ca.gov/sanfranciscobay/esl.htm <br /> Site Scenarios: Site scenario options based on scenarios used to develop ESL lookup tables. <br /> See also attached Tier TESL Surfer Report,Glossary and Chemical Summary. <br /> Tier 1 ESL Surfer <br /> Version: October 2005 ESL Surfer-Detailed ESLs <br />