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It appears that no detectable concentrations or lead are impacting <br /> the groundwater at this site. <br /> The groundwater beneath the site has been impacted and heavy <br /> gasoline and BTEX contamination were detected in the groundwater <br /> samples from MW-1 and MW-2. Lesser concentrations of gasoline and <br /> BTEX was detected an the sample from MW-3 . All the wells had <br /> actionable levels of TPHG and BTEX. <br /> The concentrations of TPHG and BTEX are similar to the <br /> concentrations of these contaminants found in the prior analysis of <br /> groundwater samples collected and analyzed from these wells. <br /> JPCA recommends continued monitoring of the wells for another <br /> quarter to further evaluate the amount of contamination and <br /> consistency of the gradient. <br /> This report has been prepared specifically for Mr. Paul Wnuk, of <br /> SIERRA LUMBER COMPANY, with specific application to a hazardous <br /> waste investigation. The report has been prepared with the care <br /> and skill generally exercised by reputable professionals, under <br /> similar circumstances, in this or similar localities. No other <br /> warranty, either expressed or implied, is made as to the <br /> professional advice presented. <br /> If you have any questions please contact us at ( 510 ) 505-0722 . <br />• Sincerely, <br /> � Q <br /> Jelpal <br /> ings John N. Alt <br /> P Epigene International <br /> c <br /> JOBN N ALT J� <br /> N° 1136 <br /> CERTIFIED <br /> ENVIEERING <br /> LPGEOLOGIST <br /> �P <br /> TQTF DF CAS-�F��`` <br />• 6 <br />