Laserfiche WebLink
06 May 1999 <br /> �- AGE-NC Project No. 98-0536 <br /> Page 3 of 4 <br /> (QA/QC) reports, and sample chain of custody documentation are presented in this report with <br /> findings and recommendations. <br /> 4.0. STANDARD OPERATING PROCEDURES <br /> All standard operating procedures were overseen by an AGE representative under the supervision <br /> of a California Registered Geologist. Procedures for soil excavation, and sample collection are <br /> outlined below. <br /> LW 4.1. SOIL EXCAVATION PROCEDURES <br /> Soil was excavated using a backhoe with an approximate 18-foot reach capability. Soil was <br /> stockpiled adjacent to older stockpiles.Excavated soil was field screened for the presence of volatile <br /> organic compounds using an OVM. The open excavation area was surrounded by temporary fencing <br /> and barricades. No AGE or subcontractor personnel was allowed into any excavation greater than <br /> five feet bsg. <br /> 4.2. SOIL SAMPLING PROCEDURES <br /> Soil samples collected from the floor and sidewalls of the excavation were obtained using a backhoe. <br /> A total of six soil samples were collected from the excavation. Soil samples were collected from the <br /> bucket of the excavating equipment by manually pushing a new,clean,2-inch by 3-inch brass sleeve, <br /> pre-capped on one end, into soil near the teeth of the backhoe bucket. The ends of the sample sleeves <br /> were covered with Teflon sheets, capped and sealed with tape. The collection of six soil samples <br /> from the stockpile were attained by the same methods and procedures as illustrated above, but <br /> ' without use of a backhoe. <br /> L. After collecting and sealing each soil sample,the sample sleeve was labeled with the boring location, <br /> depth,time, date and sampler's initials. Appropriately sealed and labeled samples were then placed <br /> in a chilled container under ice and transported under chain-of-custody to a DHS-certified laboratory. <br /> Lo <br /> 5.0. RESULTS <br /> La <br /> TPH-g was not detected above the reporting limit of 1.0 mg/kg in any of the soil samples collected <br /> from the floor of the excavation. TPH-d was detected at a concentration of 62 milligrams per <br /> L- kilogram(mg/kg) in(S 1-8). The other samples had TPH-d concentrations below the reporting limit. <br /> BTEX compounds were not detected at concentrations at or above the method reporting limit. <br /> LN Advanced GeoEnvironmentat,Inc. <br /> iir <br />