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7. The top of the casing will be fitted with a pre-formed vault which will be thoroughly <br /> grouted with concrete. The casing will extend into the vault and be sealed with an <br /> expandable locking cap. The vault will be sealed with a heavy duty metal cover and <br /> labeled.8. The preserved soil samples will be transported under chain of custody to a <br /> State Certified laboratory will instructions to analyze for BTEX (EPA 8020) TPHg <br /> (EPA 8015K)and oxygenates(EPA 8260.) <br /> 9. 24 to 36 hours after completion of the well, it will be developed, purged and sampled <br /> as directed by the County EHD. Water samples will be transported under chain of <br /> custody to a State Certified laboratory and analysed for BTEX, TPHg, and oxygenates <br /> using approved detection limits. <br /> 10. The elevation and coordinates of the casing will be determined by a licensed <br /> surveyor. <br /> A report covering the results of the work will be prepared and submitted to the County <br /> EHD within 45 days of receipt of all of the data. <br /> 5 S <br /> Mo. &Associates <br /> sato S � <br /> t �,. <br /> v <br /> GE <br /> W LLU'M J.HUNTER <br /> * N0.860 <br /> 9 -OF <br /> P <br /> 4 <br />