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COLUMBIA.ANALYTICAL SERVICES,INC.. <br /> Analytical Report <br /> Client: EMCON Associates Service Request: K947479S <br /> Project: Foothill/#0939-004.08 Date Collected: 11/28/94 <br /> Sample Matrix: Water Date Received: 12/1/94 <br /> Date Extracted: NA <br /> Inorganic Parameters <br /> Units: mg/L(ppm) <br /> Sample Name: LW-1 MW-1 MW-2 <br /> Lab Code: K947479-001 K947479-002 K947479-003 <br /> EPA <br /> Analyte Method PQL MDL <br /> Alkalinity as CaCO3 310.1 20 2 104 100 78 <br /> Bicarbonate Alkalinity as CaCO3 SM2320B 20 2 104 100 78 <br /> Carbonate Alkalinity as CaCO3 SM2320B 20 2 ND(a) ND(a) ND(a) <br /> Chloride 300.0 0.2 0.2 9.5 6.3 6.6 <br /> Cyanide,Total 335.2 0.01 0.003 ND ND ND <br /> Nitrate as Nitrogen 300.0 0.2 0.1 1.2 2.4 2.9 <br /> Solids,Total Dissolved(TDS) 160.1 5 5 182 186 162 <br /> Sulfate 300.0 0.2 0.2 15 6.5 1.5 <br /> Sulfide 376.1 2 2 ND ND ND <br /> Total Organic Carbon(TOC) 415.1 0.5 0.2 ND ND ND <br /> SM Standard Methods for the Examination of Water and Wastewater, 17th Ed., 1989. <br /> ....................................... <br /> ....................................... <br /> a s...........:.......:::::..:...x The carbonate alkalinity is equal to zero,because the sample's pH is less than 8.3. <br /> Approved By: Date: <br /> i <br /> K947479S.XLS/l/17/95 page No.: <br /> c; 000 :3 <br />