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� uaN<GERS 5 NPS CORS *N1fS <br /> conduct on-site remediation The second option is to conduct an in-situ remediation method of <br /> the soil One method of in-situ remediation is soil vapor extraction (SVE) <br /> Excavation of the petroleum impacted soil will require that the underground storage tanks <br /> presently at the site be removed as the first phase of work, followed by the excavation of <br /> impacted soil This option completes the removal of impacted soil within a short period of time <br /> and minimizes the potential for groundwater to be impacted Estimated costs associated with <br /> this option are approximately $120,000 (±20 percent) <br /> In-situ soil remediation of the impacted soil, using soil vapor extraction, can be accomplished <br /> with limited interruptions to facility operations and without removing the existing USTs. <br /> However, soil vapor extraction will require a significant time commitment (a minimum of 1 to <br /> 2 years) Costs associated with soil vapor extraction are estimated to total $150,000 (±20 <br /> Ipercent) <br /> Based on the high cost and time requirements of using an in-situ remediation technique, it is <br /> recommended that the petroleum impacted soil be removed from beneath the former USTs using <br /> excavation techniques. <br /> 5.0 GENERAL F ELYD PROCEDURES <br /> This section presents methods and procedures to follow during field activities Activities <br /> covered include a health and safety plan, soil sampling, and investigation waste handling. <br /> 5.1 SAFETY PLAN <br /> I A sites specific health and safe plan will be developed nor to an site work The contents of <br /> P� safety P P� P Y <br /> the health and safety plan will satisfy the requirements of 29 CFR 1910 120 The plan will <br /> include the following information: project identification, hazard assessment, personnel protection <br /> plan, identified monitoring with action levels, emergency contacts, hospital location, contingency <br /> plan, decontamination plan, and site personnel certification status. A copy of the Health and <br /> Safety Plan will be located on-site at all times. <br /> 5.2 SOIL SAMPLING PROCEDURES <br /> ISoil samples will be collected from the backhoe bucket after first scraping away the top 4 inches <br /> of soil For safety precautions, no personnel will enter and sample from the excavation. <br /> LTX0JWrSZANJ000AIM ACT 9 15 May 1993 <br />