Laserfiche WebLink
25 March 1996 <br /> AGE-NC Project No. 95-0168 <br /> Page 3 of 4 <br /> 3.2. EQUIPMENT DECONTAMINATION <br /> All sampling tools and brass sleeves used for sample collection will be thoroughly rinsed with clean <br /> water after washing with a solution of Alconox. All hollow stem augers are steam-cleaned prior to <br /> advancement in each borehole. , <br /> 3.3. LABORATORY ANALYSIS <br /> Selected soil samples will be analyzed for TPH-g and BTE&X in accordance with EPA methods <br /> 8015/5030 and 8020/602, respectively. Laboratory reports of both soil and ground water analyses, <br /> testing methods, laboratory quality assurance/quality control (QA/QC) reports, and sample chain-of- <br /> custody documentation will be presented in a report with the findings and recommendations. <br /> 4.0. PROCEDURES <br /> 4.1. SOIL BORING DRILLING <br /> The following procedures will be performed for the installation of soil borings: <br /> 1. Notify the PHS-EHD 48 hours prior to commencement of any work, while securing proper <br /> city/county soil boring permits. <br /> 2. Boring locations will be marked at least 48 hours in advance for an.Underground Service <br /> Alert (USA) check of underground utilities or pipes. <br /> 3. Advance two soil borings using a truck-mounted drill rig equipped with 8.25-inch or 6-inch <br /> diameter hollow stem augers. Each boring will be advanced at an angle of 25' from vertical <br /> to a depth of 25 to 30 feet bsg. Boring locations will be approved by the PHS-EHD prior to <br /> drilling. <br /> 4. Decontaminate-all sampling.equipment in an alconox solution and rinse twice with water prior <br /> to each sampling run. Steam-clean auger flights before advancement of each boring. <br /> 5. Collect soil samples at 5 foot intervals from each boring, beginning at 5 vertical feet bsg, <br /> utilizing a California split-spoon sampler and pre-cleaned 2-inch by 6-inch brass sleeves. <br /> 6. Preserve soil in the lead brass sleeve by covering both ends with Teflon sheets, capping, and . <br /> sealing with tape. <br /> 7. Store the samples under ice and transport the samples in a chilled ice chest to a State-certified <br /> laboratory for analysis. <br />