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Neumiller & Beardslee ` ' '_`""� i,' , LFI?=d1 Till <br /> ., <br /> FOUNDED AS A PROFESSIONAL CORPORATION <br /> ASHLEY¢ NEU MILLER ATTORNEYS AND COUNSELORSO CMAILING ADDRESS, <br /> 111, 9�apK <br /> JANUARY 1903 ST I4 <br /> W. 6Al7 FOp J Zp <br /> FIFTH FLOOR WATERFRONT OFFICE TOWER II TELEPHONE I3091 9dg-a to'd <br /> 509 WEST WEBER AVENUE FAX 12p91 948.4910 <br /> STOCKTON, CALIFORNIA 95203 <br /> 75376-16735 <br /> September 1, 1993 <br /> Ms. Linda Turkatte, R.E.H.S. <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> Post Office Box 209 <br /> 445 North San Joaquin Street <br /> Stockton, California 95201 <br /> Re: Investigation at 101 South Wilson Way <br /> Dear Linda: <br /> As you know, we represent Roek Brothers regarding petroleum <br /> contamination at 102 South Wilson Way, Stockton. Based on the <br /> following information, we are requesting that you re-open <br /> investigation of soil and/or groundwater contamination at 101 <br /> South Wilson Way, Stockton. We are aware that 101 S. Wilson Way <br /> is an open site already, but also request that you reopen the <br /> tank site closed where tanks existed under the sidewalk because <br /> they may contribute to groundwater contamination as well as the <br /> Endich Bros. site. <br /> In 1986, two 550-gallon underground storage tanks owned by <br /> the City of Stockton were removed from the sidewalk area on the <br /> west side of Wilson Way. The soil sample report indicated not- <br /> detectable levels of ethylene dibromide, benzene, toluene, <br /> ethylbenzene, xylene, and total petroleum hydrocarbons. However, <br /> this report is inconclusive. Based on 'today's standards, these <br /> test results would not permit closure of the site, and for this <br /> reason, we respectfully request that PHS/EHD renew the <br /> investigation of contamination at 101 South Wilson Way. <br /> The acceptable thresholds for contaminant levels in 1986 <br /> were considerably higher than today's standards. Current testing <br /> methods allow for a more precise measurement and quantification <br /> of contaminants at much lower levels. Accordingly, what was <br /> acceptable for site closure in 1986 would not be permitted in <br /> 1993 . <br /> The November 21 , 1986 report prepared by Roy F. Weston Inc. <br /> states that the detection level is 0. 2 micrograms per gram which <br /> measures the benzene in parts per million. This level is <br /> equivalent to 200 part per billion. Today, the standard <br /> P:\TRN\16735\C\ROHR4.KEH <br /> 75376-16735/=/09/01/93/3 <br />