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ENVIRONMENTAL HEALTH DIVISlo <br /> 304 E. Weber Ave.Third Floor <br /> P O. Box 388, Stockton CA 95201-0388 ...,� <br /> Approved Q <br /> Denied ❑ <br /> hj Conditions Se�r c WA4,6u.3 <br /> Date-1 • L-cby 2cZ 2a,,.e <br /> -'0VrA-.L ac- t..an/Q uts6-F"L'4 GROUND ZERO ANALYSIS,INC. <br /> �oa�aG� . sbmru�. ,tt <br /> 1714 Main sbvd <br /> T14)'-5 f)nZ McA—Z 1lt-F_ EK&lm Catirornio 95320 <br /> ZG3f6N6' ,� +'�''_ ���' Tekphone:12091938-988 <br /> I 1> Faa&m&:(209)938-99* <br /> S�tSrt.t.c< < u }kisCs'�iG �FG�1 . <br /> December 16, 1997 <br /> F�iS'rts�Z•t.c-. . ��W Cy tLLoU n�j. - , <br /> W pc�-y, LtllcZ sat l $Cc7wCtk3 Mr. Ron Rowe <br /> San Joaquin County-Public Health Services <br /> tv2 g7.(taa PWc-�(St3' Environmental Health Division <br /> U� 445 North San Joaquin Street <br /> P.O.Box 388 <br /> {�pct4yMc( `w-tile I�is�tf¢sG Stockton,CA 95201-0388 <br /> OAK <br /> 1rG sp.tt -c Subject: Workplan for Subsurface Investigation <br /> 733 South Van Buren Street,Stockton,California(Figure 1) <br /> Dear Mr. Rowe: <br /> C-063-n 1,}u6vs CaSILt taJlSR-L� Ground Zero Analysis, Inc. (Ground;Zero) is submitting this workplan for subsurface <br /> Stv,&� investigation at the above referenced property. The purpose of the proposed work is to define <br /> the lateral and vertical limits of soil contamination related to the former underground storage <br /> l llNl� - �Lac�T'St- &Z tank(UST)and to determine if groundwater has been affected by the release. r <br /> Barkground <br /> On June 9, 1992,one 3,000 gallon gasoline LIST was removed from the site(Figure 2). Notes <br /> from PHS/EHD state that the tank was rusty but did not contain holes.. No odor or discoloration <br /> was noted in the tank pit, except in native beneath the cast end of the tank. Two soil <br /> C�N'l l IJ1}� soil samples were collected from native soil beneath the tank and analyzed for tonal petroleum <br /> hydrocarbons as gasoline(TPHg), benzene, toluene, ethylbenzene,and total xylenes(BTEX). <br /> 1b ,tVtA, The eastern soil sample reportedly contained 3,300 parts per million (ppm) TPHg, 20 ppm <br /> ethylbenzene, and 210 ppm total xylenes. The western sample did not contain any detectable <br /> �7y1 <br /> UM&3 AhM-�- TPHg and BTEX. <br /> Bwwsed Scone of Work <br /> Ground Zero proposes to mark the proposed boring locations and notify Underground Service <br /> Alert(USA),as required by law. Subsequent to utility clearance by USA, Ground Zero will <br /> 4NtLri supervise the drilling of up to four soil borings at the locations marked on Figure 2. Drilling <br /> Q 151 i'it�� cr5lvc�� ~ro - . <br /> E(� 7 r✓ t f�f1, 7 b� <br />