ARCHIVED REPORTS XR0001427 - Laserfiche WebLink

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July 15, 1998 Page 3 As required by the Occupational Health and Safety Administration (OSHA) Standard ko "Hazardous Waste Operations and Emergency Response" guidelines (29 CFR 1910 120), and by California Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste Operations and Emergency Response" guidelines (CCR Title 8, Section 5192), PEG will prepare a Site-Specific Health and Safety Plan prior to the commencement of fieldwork The Site-Specific Health and Safety Plan will be reviewed by the field staff and contractors before beginning field operations at the site The specific scope of work is discussed below Monitoring Well Installation. Two proposed groundwater monitoring wells (U-5 and U-6) will be installed at the general locations shown on Figure 2 The proposed wells will be installed 15 feet below the current water level and will be screened from 5 feet above All work will be done in accordance with the permits obtained by the San Joaquin County Department of Environmental Management and the City of Tracy • Soil Boring. One continuous core soil boring (B-4) will be drilled through the former waste oil tank complex (Figure 2) The boring will extend to approximately 50 feet bgs or until a minimum of two . non detects are measured using field analytical tecluuques (PID or FID) A hydropunch will then be driven into groundwater and a discrete sample taken • Soil Selection and Analysis. Soil samples will be collected every five vertical feet in the bonngs A continuous core sample will be collected from Boring B-4 to analyze geological conditions on site Selected soil samples taken from the monitoring well locations will be submitted to a California State -certified laboratory and analyzed for the presence of total petroleum hydrocarbons as diesel (TPH-d), total petroleum hydrocarbons as gasoline (TPH-g), benzene, toluene, ethylbenzene, xylenes (BTEX), MtBE, and Total Lead Selected samples taken from Boring B-4 will be analyzed for the above listed analytes plus cis-1,2-Dichloroethene (cis-1,2-DCE), trans-1,2-Dichlorethene (trans-l,2-DCE), Tetrachlorethene (PCE), and Trichlorethene (TCE) Furthermore, one sample from the location of Boring B-4 will be analyzed for Tier One RBCA physical parameters Analytical methods are presented in Attachment B • Groundwater Analysis. After well development, water samples will be collected from the wells and submitted to a California State - certified laboratory for analysis Groundwater samples will be analyzed for the presence of TPH-d, TPH-g, BTEX, Oxygenates (Ethanol, TBA, MtBE, DIPE, ETBE, and TAME), Metals (Cadmium, Chromium, Lead, Nickel, and Zinc), cis-1,2-DCE, 910-017 1A/WPLAN