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b <br /> on- Combustible <br /> 0 <br /> C OFu ry calibrated, field calibrated monthly, <br /> E-5 lb—rattibo'no. qkf*kLto,�x gdfl/Oxygan motor <br /> zor"d dolly according to manufacturarn inatructiona. <br /> MIRCollanooun M04curin <br /> any Calibration proceduron for <br /> LPw Davican <br /> request of the Ovlc�,Oused will be documented at the <br /> regulatory authority <br /> All equipment wlljL be chocked dally and replaced as <br /> necaquary. Instrument manuals and an InstruMent log book <br /> will accompany equipment into the field. Any calibration, <br /> repairs or related Information will be recorded In the log <br /> book. <br /> 8.0 Laboratory OA/OC Plan <br /> SOII and groundwater samples will <br /> Certified Hazardous Waste ba submitted to a Stato <br /> Laboratory <br /> far chemical analysis <br /> Of hazardous conatituente. Hatabli. had QA/QC procedures for <br /> analytical operations wilt <br /> Procedures, Include sample custody <br /> atandarda Of analytical accuracy, analysis of <br /> matrix spikes and method blanks, data reduction, <br /> verification of raw <br /> control analytical data, and maintenance of <br /> charts to monitor analytical performance. These <br /> CA/QC procedures are Outlined In the laboratory OA/OC Plan <br /> which Is available upon request. <br /> will bo Performed Organic chemical analyses <br /> In conformance with standard procedures <br /> established by the Unitad States Environmental Protection <br /> Agency (EPA) In oCuldellnes Establishing Toot Procedures for <br /> .ha Analysis <br /> of Pollutants Under the Clean Water Act,, (40 <br /> CFR Part 136, October 1984). The laboratory is <br /> periodically evaluated through external <br /> conducted by EPA and performance audits <br /> analytical DHS Using s. The spe <br /> Methods to be utilized <br /> labd for purgeablecific and <br /> samlvOlatile hydrocarbons analyses are shown on Table 2. <br /> Provided the data base Is of sufficient size, statistical <br /> techniques may be OmPloyed for data validation. <br /> 9.0 Groundwater Monitoring Protocol <br /> Monitoring of depth to water and free product thickness <br /> with-in wells at the site will be conducted using an <br /> Interface Probe or conductivity motor. For consistency, all <br /> measurements will be taken from the north side of the <br /> wellhead at the survey mark. To assess potential <br /> Infiltration of fine grained sediments, total well depth <br /> will also be sounded. <br />