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spoil pile showed that all tested substances were below detection <br /> limits. Table II summarizes that data; Exhibit F includes copies <br /> of the laboratory results and the chain-of-custody. The results <br /> of those analyses indicates that further excavation is not <br /> needed, and any contamination remaining in the spoil pile has <br /> apparently been thoroughly diffused and/or diluted below <br /> detection levels. <br /> FILL & COMPACTION OF THE EXCAVATION: On April 14 & 15, Jim Thorpe <br /> .J <br /> Oil brought in a total of 64.5 tons of pea gravel and filled the <br /> excavation which had contained the UST. The pea gravel was <br /> thoroughly compacted and then was capped with 21.75 tons of road <br /> base on April 15, 1992; refer to Exhibit G for copies of the <br /> weight tickets. <br /> SUMMARY OF WORK DONE: As indicated by the above report, and <br /> supported by laboratory analysis, all evidence of contamination <br /> has been removed from the site of the former UST, and no further <br /> work is required. In addition, composite samples of the removed <br /> spoil were below detection levels for tested substances. <br /> .J <br /> PROPOSED DISPOSITION OF SPOIL: As a result of the laboratory <br /> analyses performed on the composite soil samples from the spoil <br /> pile, it appears that the contamination previously found has <br /> either been dispersed within the pile, or has been naturally bio- <br /> remediated. It is therefore suggested that the stored soil does <br /> not need further treatment, and can be disposed of in a manner <br /> that is in compliance with applicable rules and regulations, and <br /> after approval has been received from the County Environmental <br /> Health Division. <br /> .J <br /> J <br /> Ni I an J. Hunter <br /> April 25, 1992 <br /> ti`JILLWM 1.HUVER <br /> NO.860 <br /> OFC <br /> 5 <br />