Laserfiche WebLink
CLEARWATER <br /> G R O U P I N C <br /> groundwater with a 2-inch-diameter diameter submersible pump Samples were <br /> collected using disposable polyethylene balers <br /> Each <br /> sample bottle was labeled with the appropriate well designation, <br /> documented on a chain-of-custody form, and placed in a chilled cooler for <br /> ' shipment to the laboratory In addition to groundwater samples, Clearwater <br /> submitted the equipment blank and a laboratory-prepared trip blank for <br /> ' chemical analyses <br /> 3.3 Chemical Analyses <br /> ' Seven groundwater samples, the equipment blank, and the trip blank were <br /> transported under chain-of-custody procedures to Pace Analytical Services, <br /> ' Inc (PACE), a state-certified laboratory located in Petaluma, California <br /> Groundwater samples and the equipment blank were analyzed for total <br /> petroleum hydrocarbons as gasoline (TPHg), total petroleum hydrocarbons as <br /> ' diesel fuel (TPHd), methyl-cert-butyl ether (MTBE), and benzene, toluene, <br /> ethylbenzene, and total xylenes (BTEX) The trip blank was analyzed for <br /> TPHg, MTBE, and BTEX The following is a summary of the analytes, <br /> analytical methods used, and corresponding laboratory reporting limits <br /> TPHg California LUFT Manual, 50 parts per billion (ppb) <br /> tBTE California LUFT Manual, 0 5 ppb <br /> X California LUFT Manual, 1 ppb <br /> MTBE California LUFT Manual, 5 ppb <br /> ' TPHd EPA Method 8015 (modified), 50 ppb <br />' 4.0 RESULTS <br />' 41 Groundwater Gauging <br /> Groundwater at the MBP property was gauged at 53 33 feet below top of casing <br /> (-6 30 feet MSL) in monitoring well BMW-1 and 52 24 feet below top of casing <br />' (-6 47 feet MSL) in BMW-2 (Table 1) These water levels are 012 to 016 feet <br /> lower than the water levels measured on July 27, 1995 On the basis of water <br />' level data provided by Geocon on December 14, 1995, the depth to <br /> groundwater in the FDIC wells ranged from 5165 feet below top of casing <br /> (-6 59 MSL) In MW-5 to 45 15 feet below top of casing (-7 02 MSL) in MW-2 <br /> Figure 3 is a contour map of groundwater elevations measured in the seven <br /> monitoring wells on the MBP and FDIC sites The map was constructed on <br /> C-115 4Qtr 95 2196 3 <br />