Laserfiche WebLink
-< Walter Shockley -3- June 15, 2009 <br /> Claim No. 9384 <br /> A. Soil Excavation: -unknown volume <br /> B. In=Situ Soil Remediation: none identified <br /> C. Groundwater Remediation: <br /> • METHOD: ozone sparging <br /> • DURATION: Jun 04 through present <br /> D. Groundwater Trends: <br /> • TPH-D trends are shown below <br /> Claim 9384 <br /> 1600000 <br /> 1400000 <br /> 1200000 <br /> 1000000 MW-1 <br /> p 800000 <br /> = 600000 ^�MWS <br /> F 400000 <br /> 200000 <br /> 0 <br /> M rv U-) .Ln_ (0z -(0 r� <br /> o 0 0 0 0 R a a o a <br /> U_ Q U_ Q !i Q W Q W <br /> Time <br /> VII. SENSITIVE RECEPTOR SURVEY: six wells identified within Y2 mile of the site <br /> Vlll. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: 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 June 2008, the Fund made the following recommendation: Free product is <br /> likely present in the vicinity of MW-1 and MW-4. The Fund recommends that the <br /> San Joaquin County LOP direct the Responsible Party to assess remedial <br /> techniques that will identify remaining sources of free phase petroleum'and <br /> recover it to the extent feasible. The Fund will review this site next year to track <br /> progress. <br /> CaMornia Environmental Protection Agency <br /> �d Recycled Paper <br />