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Florsheim Homes July 8, 1994 Mr. Robert Florsheim Page 3 of 4 ENVIROMETRIX * Sampling location, designation, and sampler Project designation and location Sampling date and time Lithologic descriptions Organic vapor readings • Sample interval Final logs for the borings and wells are presented on Plate 4. After drilling was completed, the borings were grouted to within two feet of the surface. The remaining two feet was filled with native soil as requested by Mr. Mike Inferrena an inspector with the SJCEHD who was onsite during the grouting of the borings. Soil cuttings from the borings were placed on the concrete pad adjacent to Boring B-1 and covered with plastic until the chemical analysis results are known. Soil samples were collected ahead of the drill bit using a 2-inch inside diameter (ID) modified California split-spoon sampler lined with three pre-cleaned 6-inch long stainless steel tubes. Soil samples were collected by pushing the lined split-spoon sampler 1.5 feet into the native soil using a hydraulic ram on the rig. The soil samples were screened for organic vapors in the field using an HNu photoionization detector. No organic vapors were detected. The ends of the sample tubes retained for laboratory analysis were covered with teflon tape, capped with plastic end caps, and placed in a ice chest with blue ice. All field and sampling equipment was decontaminated prior to use, and a trisodium phosphate and water solution was used to clean the split spoon samplers prior to each sampling. The groundwater sample was collected by lowering a new disposable bailer into Boring B-1 after groundwater had recharged into the boring. The sample was decanted into laboratory supplied containers. Soil samples submitted for laboratory analysis were collected in each boring just above or at the groundwater table which varied from 5.5 to 6.5 bgs. Additional soil samples were collected and placed on hold at the laboratory pending results of the initial chemical analysis. Soil and groundwater samples were submitted for laboratory analyses under Chain-of-Custody procedures to Superior Analytical Laboratories (Superior) in Martinez, California, a State-certified laboratory. Soil samples were analyzed for total petroleum hydrocarbons as diesel (TPH-D) as motor oil (TPH-MO) and gasoline (TPH-G), and benzene, toluene, ethylbenzene, and xylenes (BTEX) using State-approved methods. The chemical analysis were submitted for analysis on a rush, 24-hour turnaround basis. Results No TPH-G, TPH-D, TPH-MO, or BTEX compounds were found above detection limits in any of the soil samples or the groundwater grab sample. The chemical analysis results are presented in the laboratory reports which are attached.