Laserfiche WebLink
1. <br /> K S. Dunbar and Associates B20301.OIA <br /> August 11, 1995 Page 2 <br /> standing water, recovering the bailer, and transferring the contents to appropriate water <br /> sample containers. The locations and number of samples collected was specified by the San <br /> Joaquin County Public Health Serives (SJCPHS) representative on the site, Mr. Michael <br /> Kith. <br /> After the soil samples were collected, the ends of the sleeves were covered with Teflon® <br /> tape and secured with plastic end caps. The sleeve was labelled and placed in a cooled ice <br /> chest for shipment to Twining's state-certified analytical laboratory. The water samples <br /> containers were likewise labelled and secured in an ice chest for shipment. Chain-of-custody <br /> documentation and a site plan showing the soil sample locations is attached. <br /> ANALYTICAL PROCEDURES <br /> The soil samples collected beneath the gasoline USTs were analyzed for the following: <br /> • benzene, toluene, ethylbenzene, and xylenes (BTEX) using United States <br /> Environmental Protection Agency (U.S. EPA) method 8020; <br /> • total petroleum hydrocarbons-gasoline range (TPH-G) constituents using the gas <br /> chromatography/flame ionization detection (GC/FID) method; <br /> • total petroleum hydrocarbons-diesel range (TPH-D) constituents using the GC/FID <br /> method; and <br /> • total lead (Pb) using the U. S. EPA Method 6010. <br /> The soil samples collected beneath the diesel USTs were analyzed for the following: <br /> • BTEX using U.S. EPA Method 8020; and <br /> • TPH-D constituents using the GC/FID method; <br /> The water samples collected from the diesel UST excavations were analyzed for the <br /> following: <br /> • BTEX using U. S. EPA Method 602; and <br /> • TPH-D constituents using the GC/FID method. <br /> Analyses were specified by the SJCPHS's on-site representative. <br />