Laserfiche WebLink
limited due to overhead lines and the limited space between the structure and the San <br /> Joaquin County right -of-way (see Figure 2). However, if an additional soil boring is <br /> required east of the former dispenser area, an encroachment permit from the County will <br /> have to be obtained) <br /> H <br /> For each boring, samples will be collected at five-foot intervals and field screened using a <br /> photo-ionization detector (PID). The depth of the borings will be determined by field <br /> observations. Borings will be terminated when organic vapors are no longer detected using <br /> a PID or groundwater is encountered; we anticipate a total depth of approximately 45 feet. <br /> A drilling permit ands Site Health and Safely Plan are currently on file with the PHS/EHD. <br /> 4.0 PROCEDURES <br /> To meet the project "Objectives, the following procedures will be performed: II <br /> 1) Notify the San Joaquin County Environmental Public Health Services - <br /> Environmental Health Division (PHS/EHD) 48 hours prior to commencement of any <br /> work. <br /> II <br /> 2) Drill two borings using a truck-mounted drill rig equipped with continuous-flight, 8- <br /> inch diameter ',hollow-stem augers. The boring locations are depicted on Figure 2. <br /> i <br /> i <br /> 3) Obtain soil samples at five-foot intervals using a split-tube sampler loadedvith three <br /> pre-cleaned br.R`ass sleeves. <br /> l <br /> 4) Preserve soil in the lead brass sleeve by covering both ends with aluminum foil, <br /> capping, and sealing with tape. <br /> 5) Label and log soil samples on a chain-of-custody form. <br /> b) Store the samples under ice and transport the samples in a chilled container to a <br /> State certified 'laboratory for analysis;. <br /> 7) Selected soil samples will be analyzed for total petroleum hydrocarbons (TPH as <br /> gasoline) and volatile aromatics (BTE&X), in accordance with EPA methods 5030 <br /> and 8020, respectively. <br /> 8) Log auger returns in accordance with the Unified Soil Classification System. <br /> I <br /> 9) Screen auger returns and soil sample duplicates for the.presence of volatile organics <br /> using a photo-ionization detector (PID) pre-calibrated to isobutylene. <br /> 10) Place auger returns in DOT drums and store on-site pending analytical tical results. <br /> r <br /> GmbjO.l Au&S ryi­ LL 3 <br /> N.,C....wPy99S-SMa94 <br />