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Western Environmental Testing Laboratory <br /> Report Comments <br /> Universal Service Recycling Inc.-20020736 <br /> Specific Report Comments <br /> None <br /> Subcontractinu Comments <br /> The analysis for PCB's was performed by Eurofins/Calscience of Garden Grove,CA.Their report is attached. <br /> Report Legend <br /> B — Blank contamination;Analyte detected above the method reporting limit in an associated blank <br /> D — Due to the sample matrix dilution was required in order to properly detect and report the analyte.The reporting limit has <br /> been adjusted accordingly. <br /> HT — Sample analyzed beyond the accepted holding time <br /> J — The reported value is between the laboratory method detection limit and the laboratory practical quantitation limit.The <br /> reported result should be considered an estimate. <br /> K — The TPH Diesel Concentration reported here likely includes some heavier TPH Oil hydrocarbons reported in the TPH <br /> Diesel range as per EPA 8015. <br /> L — The TPH Oil Concentration reported here likely includes some lighter TPH Diesel hydrocarbons reported in the TPH Oil <br /> range as per EPA 8015. <br /> M — The matrix spike/matrix spike duplicate(MS/MSD)values for the analysis of this parameter were outside acceptance <br /> criteria due to probable matrix interference.The reported result should be considered an estimate. <br /> N — There was insufficient sample available to perform a spike and/or duplicate on this analytical batch. <br /> NC — Not calculated due to matrix interference <br /> QD — The sample duplicate or matrix spike duplicate analysis demonstrated sample imprecision.The reported result should be <br /> considered an estimate. <br /> QL -- The result for the laboratory control sample(LCS)was outside WETLAB acceptance criteria and reanalysis was not <br /> possible.The reported data should be considered an estimate. <br /> S -- Surrogate recovery was outside of laboratory acceptance limits due to matrix interference. The associated blank and LCS <br /> surrogate recovery was within acceptance limits <br /> SC — Spike recovery not calculated. Sample concentration>4X the spike amount;therefore,the spike could not be adequately <br /> recovered <br /> U -- The analyte was analyzed for,but was not detected above the level of the reported sample reporting/quantitation limit.The <br /> reported result should be considered an estimate. <br /> General Lab Comments <br /> Per method recommendation(section 4.4),Samples analyzed by methods EPA 300.0 and EPA 300.1 have been filtered prior to analysis. <br /> The following is an interpretation of the results from EPA method 9223B: <br /> A result of zero(0)indicates absence for both coliform and Escherichia coli meaning the water meets the microbiological requirements of the <br /> U.S.EPA Safe Drinking Water Act(SDWA).A result of one(1)for either test indicates presence and the water does not meet the SDWA <br /> requirements.Waters with positive tests should be disinfected by a certified water treatment operator and retested. <br /> Per federal regulation the holding time for the following parameters in aqueous/water samples is 15 minutes:Residual Chlorine,pH,Dissolved <br /> Oxygen,Sulfite. <br /> Page 2 of 8 <br /> SPARKS ELKO LAS VEGAS <br /> 475 E.Greg Street,Suite 119 1084 Lamoille Hwy 3230 Polaris Ave.Suite 4 <br /> Sparks,Nevada 89431 Elko,Nevada 89801 Las Vegas,Nevada 89102 <br /> tel(775)355-0202 tel(775)777-9933 tel(702)475-8899 <br /> fax(775)355-0817 fax(775)777-9933 lax(702)622-2868 <br /> EPA LAB ID:NVO0925-ELAP No:2523 EPA LAB ID:NVO0926 EPA LAB ID:NVO0932 <br />