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yi y <br /> ANAEROBIC <br /> Hydrocarbon-Degrading Bacteria Enumeration Assay Results <br /> Client Sample Sample Hydrocarbon Target Total <br /> Number Date Degraders Hydrocarbons Heterotrophs <br /> (cfu/ml) Tested (cfalml) <br /> MW-1 06/05/03 4x 102 Gasoline/Diesel 4 x 102 <br /> MW-4 06/05/03 3 x 101 Gasoline/Diesel 2 x 101 <br /> MW-513 06/05/03 1 x 103 Gasoline/Diesel 8 x 101 <br /> MW-8 06/05/03 5x 102 Gasoline/Diesel 1 x 102 <br /> Sterile Water 06/06/03 - Gasoline/Diesel Zero <br /> Air control 06/06/03 - Gasoline/Diesel Zero <br /> Positive Control 06/06/03 1 x 108 Gasoline/Diesel 1 x 108 <br /> Reporting Limit for enumeration data is 1 0 x 101 cfulml <br /> A positive control of anaerobic hydrocarbon-degrading bacteria was run concurrently <br /> with these samples using a mixed flask culture of anaerobic bacteria isolated from <br /> contaminated groundwater sites in Northern California <br /> Inorganic Chemistry and Nutrient Assays <br /> Analysis Request: Nutrient assays were preformed for pH, dissolved oxygen (DO), <br /> oxidation-reduction potential (ORP), ammonia nitrogen, ortho-phosphate, sulfate, nitrate, <br /> and ferrous iron <br /> Protocol: Spectrophotometric assays were performed to determine the concentrations of <br /> ammonia, ortho-phosphate, sulfate and nitrate The assays follow EPA manual <br /> colorimetric protocols using precalibrated reagents and a Bausch & Lomb <br /> spectrophotometer 20 All assays conform to California CLP and Standard Water& <br /> Wastewater Methods <br /> The testing for ferrous iron and alkalinity was subcontracted out to Curtis & Tompkins, <br /> Ltd Analytical Laboratory <br />