Laserfiche WebLink
3467 Kurtz Street %'1Jocd v%7-rd-Ci.,4,ea. Consultaat <br /> San Diego, California 92110 <br /> (619)224-2911 <br /> Project No. 8753009Q-AN02 <br /> Dorazio, Barnhorst & Bonar \ <br /> 438 Camino Del Rio South, Suite B-223 <br /> San Diego, California 92108-0005 <br /> Attention: Steven P. McDonald, Esq. IY <br /> WORK PLAN: PHASE <br /> PETROLEUM STORAGE IANDBHANDL NGSURFACE ITERMINALTION ENFtER�I �SERvHc STN <br /> PORT OF STOCKTON <br /> STOCKTON, CALIFORNIA <br /> Gentlemen: <br /> Woodward-Clyde Consultants (WCC) is pleased to present this work plan <br /> for a Phase II Subsurface Investigation in the petroleum storage and <br /> handling terminal area at the Port of Stockton. The investigation for <br /> Phase I included an evaluation of the hydrogeologic setting and a review of <br /> the history of the petroleum terminal. Based on the results of the Phase I <br /> investigation, we have developed a scope of services associated with the <br /> proposed Phase II investigation. <br /> BACKGROUND <br /> WCC performed a field investigation in January and February 1987, to <br /> evaluate the hydrogeologic setting in the petroleum terminal area. Thir- <br /> ty-two piezometers were installed along the perimeter of the terminal area <br /> to characterize the groundwater flow direction beneath the site. Based on <br /> measurements obtained on January 28 and February 12, 1987, the depth to <br /> groundwater is approximately 6 to 8 feet below grade and groundwater <br /> flows across the site from the northwest to the southeast. A groundwater <br /> mound was detected in the vicinity of piezometers P11 and P12 (Figure 1) <br /> which appeared to be associated with an unlined pond at this location. <br /> Evidence of petroleum hydrocarbons was noted in piezometers P11 through <br /> P17 (southeast boundary) and P29 and P30 (northwest boundary) . <br /> The Phase I investigation also included a records search to identify exist- <br /> ing wells or piezometers which could be used to measure water levels (none <br /> were found). In addition, available information from various regulatory <br /> agencies was reviewed. Our review of the available information indicated <br /> that the petroleum terminal area has experienced several incidents <br /> involving various types of petroleum hydrocarbon constituents. <br /> Consulting Engineers.Geologists ' <br /> and Environmental$cientsis <br /> Offices in Other Principal Cites `. +� <br />