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STATE OF CAUFORNIA GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— ; ' <br /> CENTRAL VALLEY REGION y <br /> 3443 ROUTIER ROAD <br /> SACRAMENTO, CA 95827-3098 <br /> 17 October 1990 <br /> Mr. Eric Sun <br /> C & L Tracy p Partnership <br /> Grou P <br /> r <br /> Cupertino, CA 95014 �F�Gcy�yl <br /> FS, ly <br /> SUNG 5 PROPERTY, TRACY ESTATES, 400 SOUTH TRACY BOULEVARD, SAN JOAQUIN COUNTY <br /> Enclosed is memorandum regarding your 1 August 1990 Preliminary Assessment Report <br /> regarding soil and ground water contamination at your site in Tracy, CA. We have <br /> reviewed your Report and find that soil contamination exist on the portion of the <br /> property to be ceded to the City of Tracy for a city park. Non-detectable to low <br /> level of petroleum hydrocarbons have been found in the shallow monitoring wells <br /> below the contaminated area. Further sampling is proposed to confirm, <br /> quantitatively, the amount of petroleum hydrocarbons in the ground water. No <br /> soil contamination was found on the rest of the property. <br /> As agreed upon in our 21 August 1990 meeting and your 4 September letter, <br /> residential development of rest of the property is approved as long as future <br /> investigations or remedial efforts are not inhibited by permanent structures <br /> built at the site. Additionally, a copy of the Preliminary Endangerment <br /> Assessment (PEA) being prepared for the Department of Health Services (DHS) <br /> should be sent to our office for review when completed. Should the PEA determine <br /> that soil removal is necessary, you will need to submit one workplan that <br /> addresses the public health concerns of DHS and the water quality concerns of our <br /> office. <br /> 1f you have any questions, please contact me at (916) 361-5670. <br /> Vim, <br /> ANTON�A K.J. VORSTER <br /> Senior Engineer <br /> RAE <br /> Enclosure <br /> cc: Mr. Eric Garcia, Department of Health Services, Sacramento <br /> ._-Ms. Eleanor Ratliff, San Joaquin County Public Health Services, Stockton <br /> Mr. Alan Bell , Tracy Planning Department, Tracy <br /> Ms. Nora Kataoka, WaterWorks, Escalon <br />