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Mr John Johnson <br /> Project 113-06-03, September 16, 1994 <br /> Page 4 <br /> Comparison of Sample Results With <br /> RWQCB Maximum Contaminant Levels (MCL) <br /> and DOHS Action Level (AL) <br /> Sample TPH-g . Benzene Toluene Ethylberzene Xylenes <br /> MW-1 610 077 ND<0 5 13 083 <br /> MW-4 2,500 350 25 25 180 <br /> MCL (RWQCB) NA 10 NA 6800 1,7500 <br /> AL (DOHS) NA N A 1000 N A NA <br /> TPH and 13TEX are in parts per billion or µg/l, NA = Not Applicable Concentrations above the action <br /> levels are in boldface <br /> M. Conclusions and Recommendations <br /> Future remediation and investigation efforts will be addressed when the last quarter <br /> of this year's quarterly moiutoring is completed <br /> A copy of tlus 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 Quahty <br /> Control Board, Central Valley Region, 3443 Routier Road, Sacramento, CA 95827- <br /> 3098 <br /> Sincerely, <br /> PARKER ENVIRONMENTAL SERVICES <br /> James D Paiker, R E A 1059 <br /> PresidentLIZ <br /> too ios� <br /> b��5 <br /> Expres _ <br /> Piepared By <br /> �aF C0� <br /> Matthew P Wold <br /> Chief Scientist <br /> Reviewed Bycr"�' Gr"Ri D <br /> 10 1: <br /> C-1-r" `i <br /> Gary D owe R G, - EG r�r , `� <br /> C , C <br /> Principal, Hydrogeologist <br /> H20GEOL, 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 />