Laserfiche WebLink
West Clay Properties -4- - May 7, 2009 <br /> Claim No. 8542 <br /> D. Groundwater Trends: <br /> • Benzene and MTBE trends are shown below <br /> Results for MW1 <br /> 9000- t1 <br /> 8000 - ---- - <br /> �, --— 13 <br /> 6000 - -- — <br /> -17 <br /> � <br /> 19 <br /> 4000 <br /> CV AO� <br /> � 3000 --- -- ---- - — -- i- - `21 0 <br /> •*. <br /> 2000+----- -- ._ f23 <br /> 1000 - — ---- -... . !- -------. L25 <br /> 0 _- �w-aa.�.•es•�zw+!+.:�.+,i.•�-asst • .#! 127 <br /> 0 'ole 4 as � <br /> METHYL-TERT-BUTYL ETHER(MTBE) BENZENE weAm Depth to Water 1 <br /> VII. SENSITIVE RECEPTOR SURVEY: no wells identified within t/2 mile of the site <br /> VIII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: former retail gasoline station <br /> B. Site History: the extent of groundwater contamination is defined <br /> C. Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation Summary: ozone sparging <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> F. Recommendation.- <br /> In <br /> ecommendation:In May 2008, the Fund made the following recommendation: The Fund concurs <br /> with the San Joaquin County LOP that the existing ozone sparging system <br /> should be expanded to achieve Water Quality Objectives more rapidly. The <br /> Fund will review this site next year to track progress. <br /> California Environmental Protection Agency <br /> 0.n <br /> Recycled Paper <br />