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J I Y r a <br /> f Ji r J I R 5 <br /> 15 April 1996 <br />(' ,AGE-NC Project No 95-4109 <br /> Page '2 of 7 <br /> of final assessment activities and evaluated several <br /> reported the results on site conditions, ' <br /> ' in 1993 and 1994 The PAR p ediation method using _of soil and ground water remediate ended the <br /> r 1tsitB Qm_ui� - ro oSed <br /> passeble methods the pAR._recomm detailed the proposed <br /> The FRP, and subsequent addenda, <br /> cunent,sete use and remedial costs, <br />-�-Y radia microbes _ r <br /> hydrocarbon-deg g <br /> reniediateon method and 31 March <br /> performed between 044E Feb <br /> bacteria To further <br /> A pilot study of the ire-situ Soil bioremediation wasp alum was also added to drums that <br /> ' slot study, five Fells were maculated�c�biadl nocbon-deg he past few <br /> 1994 For the p msover <br /> demonstrate the effectiveness of bioremediation, 1p 1 <br /> hydro , <br /> and urge water from subsurface investd gradat on of hydro- <br /> contained soil cuttings a p w - , <br /> ' ears Subsequent sampling and analysis indicated a sigi?i ica ro ram <br /> Y <br /> d the drum treatment, afull-scale soil iriaculattoil p g <br /> ' gallons of inoculum were introduced <br /> Lased upon the results of the pilot study an roximately 1,244 wells <br /> Audit in August 1994 AppellI , <br /> ion <br /> was initiated by Geoanitoring wells, one extraction we ember 1994 tQuarterly <br /> into the Wells Details of he inoculation procedure were reported in the p <br />� were InoculatedGeoAudrt w <br /> Report prepared by performed at the site The procedures, <br /> infer tests was <br /> Between 13 and 15 July 1994, a series of testing were documented in the September 1994 Quarterly <br /> B r aquifer <br /> results and conclusions <br /> eoAudti aq <br /> f Report prepared by ossible supplemental <br /> 1996 oto assess p <br /> ' erformed in January greatest increase in microbial <br /> A biotreatabilrty assessment was P round water Ternediation The g en was not The <br /> addition <br /> en requerements for g <br /> nutritional and oxyg . in the stem when nutrients were added, but OXY - long-term microbial <br /> populations ing <br /> was observed <br /> be he most important factor far for tae ma g- <br /> sents appeared-"6 ear to be necessary for the maintenance <br /> microbial <br /> not <br /> of nuts en did not app <br /> populations` The addition of oxygen owth rate However, the more rapt g en The <br /> the supplemental oxyg <br /> populations,but did result in a more rapid } art" <br /> translate into higher bacterial population counts in the systems rices Quarte, <br /> ly Rep <br /> � <br /> -procedures and findings were discussed in the December 1995 <br /> proce M <br /> 3,0, PROCEDURES WATER ' <br /> , <br /> G pp MICROBIOLOGICAL ACTIVIT�s IN GRA _14 and <br /> ' 3 l �M4NITCRTN11 1 ��7t �y_14,IvCW-il, MW-13, MW <br /> " M 1v1W_{ through MW-14 and <br /> Ground water samples were collected from Mw-�'WeTe'collected from <br /> 199b, ground water same 1996 were reported in the December <br /> EW-1 on 29 February les collected on 03 januar5' <br /> EW�1 an 19 March 1996 Samples was erformed in accordance with Revised Monitoring an <br /> 1995 Quarterly Report Sampling p the CVRWQCB - <br /> Rep orung Program NoJ 94701 prepared by <br /> , <br /> ,J <br />