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irr- <br />rn#n iTiTT "***^ <br />* W^i^V*** Sck0(iflc Industries <br />1^ Uta. MiMCSOO <br />Oita li& 1M7-20O <br />Prior to thinspreadiog. wo composite soil samples will be collected and analyzed for EPA 601/602 <br />putm ' niirty days after the spreading, three composite samples will be collected from the <br />•S' ~ U,llmr ^ d analyzed for the same parameters. Sampling will proceed on a monthly basis <br />throughout the summer. The soil will be aerated with a field disk on a monthly schedule. When <br />H^ cootaminitioo is no longer detected, the area will be reseeded and returned to its original state. We <br />•oticipaie complete volatization of contaminants within 90 days of thinspreading. Analytical reportsSsf''will be forwarded to the MPCA for review and comment. <br />Ground Wafer Monitoring <br />We recommend quarterly monitoring of wells MW-2. MW-2D. MW-4. MW-4D. and MW-12. Monitoring <br />»tlb MW-1, MW-3. MW-7. MW-9. MW-10. MW-11. and the former plant supply welt will be sampled on a <br />■ emi-annual schedule. The welU will be sampled for EPA 601 parameters. Recovery system influent and <br />•niuenl will be sampled on a monthly basis as required by the MWCC for discharge to the sanitary <br />The results will be reported to the MPCA and the MWCC for review and comment. <br />■"n;;' <br />^.0 METHODS <br />Water Levels <br />"^liround water level measurements are obtained by using an electronic measuring device which <br />when a probe is in contact with the ground water in the well. Measurements are obtained by <br />Slfimiat the device into the well until it indicates that the water surface has been encountered and by <br />k"'- <br />the distance from the top of the inside riser pipe to the probe. All of the measurements are <br />110 the nearest 0.01 foot; however, the manufacturer’s reported accuracy for the instru nent is <br />id Water Sampling <br />ring wells were sampled from the suspected cleanesi lO th? most contaminated according to <br />og protocols. All pertinent information was recorded on a sampling information form. <br />... <br />.Vs:v <br />ON <br />ONOdp <br />JO <br />lIDNnOO AlID 3H1 dO N01imOS3a AliO <br />ter <br />OMO^IO JO