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ice^` '!�-�,5• r i���5 �F �_ 4� '� _ wfi . t <br /> g,K <br /> y. <br /> Lammersville School District <br /> July 16, 1990 202/899.7004 <br /> 7 <br /> TABLE 3 <br /> LABORATORY ANALYSIS OF GROUNDWATER <br /> (in ppb) <br /> Sc •ambrr 28/October 20, 1988 <br /> WELL <br /> ID Benzene Toluene Ethvlben7eng Xylene. s TPH-G TPH-D <br /> MW-1 ND ND ND ND ND <br /> 72 <br /> MW-2 10 2 71 6 8,000 ND <br /> MW-3 ND <br /> ND ND ND ND <br /> ND <br /> MW-4 ND ND ND ND t,D <br /> 50 <br /> MW-5 ND ND ND ND ND <br /> ND <br /> 5.0 DESCRIPTION OF FIELD INVESTIGATION <br /> _. 5.1 PREPARATION FOR INVESTIGATION <br /> Prior to subsurface exploration,an encroachment permit(E.P.No.90-310-sw)was obtained from <br /> the County of San Joaquin. Department of Public Works to allow drilling on public rights-of-way. <br /> Additionally, all monitoring well construction permits (Permit Nos. 90-1480, 90.1481, 90-1482) were i <br /> obtained from the San Joaquin County Public Health Services, Environmental Health Division (SJCPHS- <br /> EHD). Groundwater Technology prepared a Site-Specific Health and Safety Plan(SSHSP)in accordance <br /> with Occupational Safety and Health Administration(OSHA)Standard'Hazardous Waste Operations and <br /> Emergency Response' (29 CFR 1910.120). The plan addressed potential chamical and physical <br /> exposures that Groundwater T -hnology personnel and subcontractors could encounter while working <br /> at the site, All Personnel contracted for the field investigation on site were required to have completed <br /> the 40 hour health and safety training requirements under OSHA Standard,29 CFA 1910.120,and to have <br /> reviewed and signed the SSHSP prepared for this investigation. <br /> To avoid damage to underground utilities and ensure safety while drilling, Underground Service <br /> Alert(USA)was contacted to notify the various utility companies to mark the locations of their respective <br /> -- k GROUNDWATER <br /> TEDiNoLoGy,INC. <br />