Laserfiche WebLink
Woodward-Clyde <br /> Consultants <br /> 2.0 <br /> FIELD ACTIVTTIES <br /> 2.1 QUARTERLY GROUNDWATER MONITORING QUARTER ENDING <br /> DECEMBER 1991 <br /> Groundwater samples were collected by WCC on December 31, 1991 from monitoring wells <br /> MW-1, MW-2, and MW-3 To complete this task, WCC first sounded each well to <br /> determine the depth to water from the top of the chnsty box, well volume, and the presence <br /> of free product (if any) <br /> Monitoring wells MW-1, MW-2, and MW-3, were then sampled for TFH, BTEX, total lead <br /> and fecal coliform To complete this task, the wells were purged a minimum of three well <br /> casings volumes with a dedicated Teflon bailer The purged water from each well was <br /> placed in 55-gallon drums The water temperature, pH, and specific conductance were <br /> measured and were recorded on the water sample logs presented in Appendix A These <br /> results are tabulated in Table 3 Groundwater samples were then collected from each well <br /> with a clean Teflon' bailer The water samples were collected in three labeled laboratory <br /> prepared 40-m1 clear glass vials sealed with Teflon"-lined septa, 250-m1 clear tall wide mouth <br /> glass bars with Teflon-lined closures, and a 50 ml Nalgene bottle The filled sample <br /> containers were placed in an ice chest with frozen blue ice A travel blank/equipment blank, <br /> (designated as MW-24) and a blind duplicate sample of MW-3 (designated as MW-23) were <br /> also included. The samples were submitted to Matrix and Anlab for analysis under chain-of- <br /> custody The samples were analyzed for TFH by EPA method 5030, BTEX by EPA <br /> method 8020, total lead by EPA method 7420, and fecal coliform by Standard Method 9921 <br /> 91CO238BIMAJORMART QRPr 02-20-92 2-1 <br />