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• Working To Restore Nature <br /> using EPA method modified 8015, and total petroleum hydrocarbons as diesel (TPHd) using <br /> EPA method modified 8015 <br /> Laboratory analysis determined that no petroleum hydrocarbon constituents were present in the <br /> groundwater samples collected from the four site wells (Table 2) Laboratory reports and chain- <br /> of-custody documentation are presented in Attachment 2 <br /> No dissolved contaminants in the petroleum hydrocarbon range have been detected in any site <br /> monitoring wells with the exception of the initial samplings 1n wells MW 1 (March 1992), MW3 <br /> (October 1993), and MW4 (October 1993) Laboratory analyses of groundwater samples <br /> collected from site wells in March 1994 and June 1994 detected no dissolved contaminants <br /> indicating that groundwater beneath the site has not been impacted Based upon the absence of <br /> contaminants in the groundwater, RESNA requests temporary suspension of groundwater <br /> momtonng and sampling at the site until soil remediation is complete Upon completion of soil <br /> remediation, site monitoring wells will be sampled pnor to site closure <br /> If you have any questions or need additional information, please contact John Lane at (209) 838- <br /> 3507 <br /> Respectfully, <br /> • RESNA Industries Inc <br /> 1 <br /> Jo Lane <br /> Prod ct Geologist <br /> /'�" —/tw— <br /> /o" <br /> Gregory P Stahl <br /> CA Registered Geologist No 5023 <br /> LFlgk <br /> PC Margaret Ekholm <br /> Beth Thayer - CRWQCB <br /> Brooke Birkze - Neumiller & Beardslee <br /> 1500471QUARTLY12QR 1994 rNL <br />