Laserfiche WebLink
31 March 2014 <br /> AGE Project No. 14-2997 <br /> Page 5 of 5 <br /> field-screened for presence of volatile organic compounds using an organic vapor meter <br /> (OVM), equipped with photo-ionization detector (PID) pre-calibrated to isobutylene. <br /> 4.3. BORING ABANDONMENT <br /> All soil borings will be permanently sealed to prevent vertical migration of potential <br /> contaminants. Soil borings shall be abandoned by backfilling with cement grout from <br /> the total depth to surface grade. Borings advanced below the groundwater table will be <br /> abandoned with grout utilizing tremie procedures. The top three to six inches of the <br /> boring abandonments will be completed flush to surface grade with concrete or asphalt. <br /> The SJCEHD will be notified for grout inspection at least 48 hours prior to conducting <br /> grouting procedures. <br /> 4.4. EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT <br /> All sampling tools used for sample collection will be thoroughly rinsed with clean water <br /> after being washed with a solution of Alconox. All down-hole drilling equipment will be <br /> pressure washed prior to starting each boring. All rinseate generated during drilling will <br /> be containerized in a properly labeled DOT-approved 55-gallon drum, and stored on- <br /> site in an area lacking public access. Disposal alternatives will be evaluated based on <br /> results of soil and water analysis. <br /> All field procedures will be overseen by an AGE representative under the supervision of <br /> a California Professional Geologist. Procedures for advancing soil probe borings, <br /> collection and analysis of groundwater samples, equipment decontamination and <br /> sample handling are presented below. <br /> Advanced GeoEnvironmen[al Inc. <br />