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Mr.john Johnson <br /> Project 11326-03,January 11,19% <br /> Page 4 <br /> Table 3. Comparison of December 22, 1994, Sample Results With <br /> . Current Action Levels <br /> Sample TPH-g Benzene Toluene EthYlbenzene Xylenes <br /> MW-1 140 ND<0.5 ND<0.5 ND<0.5 0.83 <br /> MW-4 3,700 570 92 58 470 <br /> DOHS MCL NA 1 NA 680 1,750 <br /> EPA Primary NA 5 1,000 700 10,000 <br /> EPA Secondary NA NA 40 30 20 <br /> TPH and BTEX are m parts per billion orµg/L NA = Not Applicable Concentrations above the action <br /> levels are in boldface <br /> IIL Conclusions and Recommendations <br /> Future remediation and investigation efforts will be addressed when the last quarter <br /> of this year's quarterly monitoring is completed. <br /> A copy of this report should be forwarded to the San Joaquin County Department of <br /> Health Services, P. O. Box 2009, Stockton, CA, 95201, and the Regional Water Quality <br /> Control Board, Central Valley Region, 3443 Routier Road, Sacramento, CA. 95827- <br /> 3098, <br />. Sincerely; <br /> PARKER ENVIRONMENTAL SERVICES <br /> Q� 111 ltoN,y <br /> tames D. Parker, KEA. 1059 No.1058 <br /> President , JLTf- <br /> Prepared By. aR CA <br /> Matthew P Wold, PhD. <br /> Chief Scientist cxSD GFo��� <br /> Reviewed B ��' GARY D LOWS ria <br /> NO 155D <br /> CFI;4 F:GJ^ <br /> * Eh��hz��i=rJG <br /> t� GEaOUIST P <br /> Gary D. Lowe,R. ., C.EG. OP D ��a�^3, <br /> Principal, Hydrogeologist <br /> H2OGEOL, A Groundwater Consultancy <br /> Attachments <br /> Parker Environmental Services, 190 East 7th Street, Pittsburg, CA 94565-2317 <br /> Phone (510) 439-1024 Fax (510) 439-2566 <br />