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05 March 2004 _ <br /> AGE-NC-Project No. 96-0254 <br /> =Page 3 of_5 ^ . <br /> the inferred areal'distribution of MTBE-impkied grown are illustrated on Figure.4.:Procedures for <br /> well installation are.presented-in Section 4.1. Apropos d ozone-sparge well design is illustrated in <br /> Figure 5. <br /> 13. IN-SITU OZONE SPARGING DISTRIBUTIO NETWORK INSTALLATION_. <br /> A system of 3%-inch diameter polyethylene tubing will.b installed in.appropriately.sized poly-vinyl <br /> yl <br /> 8-inch wide trenches approximately one foot bsg and routed-from,. <br /> each.ozone sparge well head to the proposed ozone-gene ating unit.Following piping placerrient,the. <br /> trench will.be'backfilled with imported road-base'sand,c ompacted and resurfaced with'asphalt..The: <br /> proposed'.ozone sparging distribution system and oz ne generator locations are illustrated in <br /> Figure.4: " <br /> 3.4. IN-SITU OZONE SPARGING PILOT.TEST' <br /> Following installation of ozone'injection wells,distrib tion network and ozone sparge system, a <br /> '24-week.(6 months)in-situ ozone sparge (IOS)pilot study is proposed.at the site; theresults of the <br /> IOS pilot test will provide data,to calculate an effective radius of influence and determine the <br /> feasibility of IOS as a,remediation-alternative. Procell res'for the IOS.pilot test are presented in <br /> Section 4.3. <br /> 3.5. REPORT PREPARATION. <br /> Upon completion' of well installation-and the 24-week IOS pilot study, a report will be prepared.- <br /> presenting the findings of the investigation. The rep will include a description of the work <br /> performed,the results of any soil and grab ground-wat r analysis', and the,res>.ilts o f the IOS'pilot_ <br /> study. Coriclusions, applicable recommendations, mapr, and cross-sections will'be included in the <br /> report. The report will be in a format acceptable to the SJEHD and the CVRWQCB, acid will be <br /> reviewed and signed by a California Registered:Gealog[St <br /> 4.0. - FIELD PROCEDURES - <br /> All field procedures will be.overseen by an.AGE.r6presci itative under the supervision of a California <br /> Registered Geologist. Procedures for well installations, well development'and ozone-,sparging are <br /> described below. <br /> Advanced GeoEnvironmental,Inc. <br />