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If - <br /> ,P <br /> F A C I MI I L E <br /> C o v e r <br /> To: Mr. Ron Rowe <br /> I <br /> Of: SJ Public Health Services Environmental Health <br /> t <br /> Fax: 464-0138 <br /> .p <br /> Pages: 1 <br /> EDate: 14 March 2000 <br /> Subject: Remedial Action Work Plan Addendum - RIPON FARM SERVICE <br /> 3� <br /> Mr Rowe: k <br /> ;f <br /> The volumetric calculation for pore-volume exchange was in error and therefore underestimated for <br /> the values presented in the work plan addendum. <br /> The pore-volume exchange was reported to be 0.47 pore-volumes per day. <br /> This value is in error. The pore-volume exchange(E) as presented,was for hours per pore-volume <br /> exchange. The corrected calculation is presented below. <br /> I� <br /> • E=25%porosity X 645 m3/339.8 rn3 vapor/hour=0.47 hours per pore-volumes exchange. <br /> I <br /> • Ed&;Iy = 24 hours per day 1 0.47 hours per pore-volumes exchange = 51 pore-volume <br /> exchange per day. } <br /> Ile i� <br /> If you have any questions or require further information,please contact our office at(209)467-1006. <br /> .w <br /> Bill Little i <br /> 'i <br /> 'i <br /> !i <br /> William R, Little Il <br /> Advanced GeoEnvironmlental Inc. <br /> 4005 North Wilson Way,Stockton,California 95205 <br /> Phone: (209)467-1006•Fax:(209)467-1118 <br /> blittle@advgeoenvtom ri <br /> TO/10 39t1d NODIO 1S 39V 8TTTL9b60Z L5'.bT OOOZ/51/60 <br /> I ik <br />