Laserfiche WebLink
y <br /> Scott Mansholt - 2 - 31 July 2003 <br /> ChevronTexaco <br /> Mountain House Site #2 <br /> The workplan proposes the installation of at least five and possibly up to ten temporary borings to collect <br /> soil and groundwater samples for laboratory analysis to delineate the lateral and vertical extent of TPH <br /> near borings GP-9, GP 174 and GP 175. <br /> ChevronTexaco and Regional Board staff, to expedite the characterization process during the course of <br /> the investigation work, will review the results of analysis and field observations to determine the need <br /> for additional borings and sampling. <br /> Based on our review of our records and the workplan, we have the following comment: <br /> • ChevronTexaco needs to perform a search and survey of all production wells used for <br /> municipal, domestic, agriculture, industrial, and other uses within 2,000 feet of the Mountain <br /> House properties. <br /> We concur with the workplan provided our comment described above is addressed. <br /> By 22 August 2003, please submit your plan and time schedule for conducting the scope of work <br /> described in the workplan and the additional activities outlined above. Please notify Regional Board <br /> staff at least 48 hours prior to commencing the field investigation and drilling activities. <br /> If you have any questions of comments, please contact Dean Hubbard at (559) 445-5179. <br /> SHELTON R. GRAY C. DEAN HUBBARD <br /> Senior Engineering Geologist Associate Engineering Geologist <br /> RG No. 6357 <br /> cc: Mr. Mike Infurna, San Joaquin County Public Health Services, Stockton <br /> Mr. Stan Ploof, Trimark Communities, Tracy <br /> Mr. Garrett Turner, SAIL, Oakland <br /> Mr. Gary Foote, Geomatrix, Oakland <br />