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23 February 2000 <br /> AGE-NC Project No 98-0533 <br /> Page 4of8 <br /> porosity and total organic carbon (TOC) in accordance with the appropriate EPA or ASTM <br /> methods <br /> Laboratory reports for soil analyses, testing methods, laboratory quality assurance/quality control <br /> (QA/QC) reports, and sample chain of custody documentation will be presented in a report with <br /> findings and recommendations <br /> 3 3 MONITORING WELL COMPLETION <br /> If petroleum hydrocarbon-Impacted ground water is encountered, selected borings in the former UST <br /> area will be completed as two-inch diameter ground water monitoring wells Procedures for well <br /> completion are detailed to Section 4 2 <br /> 3 4 MONITORING WELL DEVELOPMENT AND SURVEY <br /> Following Installation, each well will be developed to maximize water flow into the well and <br /> minimize the amount of fine-grained sediment drawn Into the well during pumping or balling <br /> Procedures for survey and well development are presented in Sections 4 2 and 4 3, respectively <br /> All wells at the site will be surveyed by a licensed professional relative to a County of San Joaquin <br /> benchmark to determine the elevation of each casing <br /> 35 GROUND WATER SAMPLE COLLECTION AND ANALYSIS <br /> Following the installation of the monitoring wells, one ground water monitoring and sampling event <br /> will be conducted at the site Samples will be collected from each monitoring well and submitted for <br /> laboratory analysis Ground water samples will be analyzed by a DHS-certified laboratory for the <br /> following constituents <br /> • TPH-av in accordance with EPA'Method 8015 Modified/5030, <br /> • BTEX and MTBE in accordance with EPA Method 8020, and <br /> • TBA, DIPE, ETBE, TAME, and MTBE in accordance with EPA Method 8260M <br /> Laboratory reports for ground water analyses, testing methods, laboratory quality assurance/quality <br /> control (QA/QC) reports, and sample chain of custody documentation will be presented in a report <br /> with the findings and recommendations <br /> Advanced GeoEnvironmental,Inc <br />