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r <br /> w� -_va <br /> AUG 2519( ', <br /> ENVIRONMENTAL HEALTH <br /> Mr. Fred Long2 PERMITlSERViCES <br /> August 17, 1989 <br /> water table to verify that removal of contaminated coils wjs complete. The <br /> sample locations are shown on Figure 1. Sampling protocol was consistent <br /> with procedures established in the Soil Remediation Work Pian as amended. <br /> The two sidewall samul- - for total extractable petroleum <br /> hydrocarbons (TEPH). A campQsite c the o samples was analyzed for total <br /> volatile petroleum hydr urgeabie aromatics, and purgeable <br /> haloca-bons. <br /> When attempting to take verification soil samples from the northern and <br /> southern sidewalls at the limits of the original excavation, a diesel odor <br /> was evident in the sails. The backhoe was used to excavate the nort�iern <br /> sidewall an additional 6 to 12 feet and the southern sidewall was excavated <br /> an additional seven feet to remove contaminated soils. Two verification <br /> soil samples were thi _ , each sidewall. All samples were <br /> analyzed for T . Composite samples each sidewall were analyzed for <br /> TVPH, purgeable aromatics, and ur eabl haiocarbans. <br /> The.eastern sidewaITWas i6ld:evaluated as:clean:' One verification soil <br /> sample was obtained from�tft approximately one to two feet <br /> above the ground water table. A verification soil sample was also taken at <br /> e' a depth of approximately 11 feet (one foo;: below the bottom of the <br /> excavation). These samples were analyzed for TEPH, TVPH, purgeable <br /> i' aromatics, and purgeable halocarbons. A summary of analyses of all <br /> verification soil samples is presented in Table 1. Complete certified <br /> laboratory reports are given in Appendix A. The final limits of the former <br /> l tank excavation can be seen on Figure 1. The results of the analyses are <br /> discussed'further herein. <br /> F Following soil remediating; activities, the monitorinC well located <br /> immediately adjacent to .the former tank excavation (Figure 1) was purged <br /> and sampled. Five well-baro volumes of ground water were removed during <br /> purging. .The well was then allowed to recharge. Ground water samples were <br /> collected with a Teflon bailer. Shipping and handling protocol was <br /> consistent with guidelines-established in the Soil Remediation Work plan. <br /> The ground water samples were analyzed for TEPH, TVPH, purgeable aromatics <br /> and purgeable halocarbons. The analyses are summarized in Table 3. <br /> Complete certifie. laboratory reports are included in Appendix A. <br /> Tempora Soil storage <br /> f <br /> Soils removed from the excavation were stockpiled along the southern <br /> boundary of the facility. ..A separate clF:,n stockpile was established for <br /> apparently uncontaminated near-surface soils removed from the excavation. t <br /> During the tank removal, excavated soils which were stockpiled near the <br /> excavation had been similarly separated. These soils were transferred to <br /> ? the stockpiles located along the southern site boundary. The stockpiles ; <br /> were- laid-on-six-mil polyethylene._sh_e ti_og_andTbermed-to-prevent==runoff-.-- ---- ---- <br /> _--- - -Approx.�matel 260 cubic Ards of canLaEninated:soil and 80 'cuaic yards aF --- <br /> 1 y; y -- <br /> zTean sail ware stockpiled <br /> 'separate ly. <br /> noweEnvircnmental <br />