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PROOH THp O KCI CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> 3935 N.Coronado Ave,Stockton CA.95204 Phone:(209)477-8105 <br /> Chesney Consulting Project Number: TWG <br /> P.O.BOX 3794 Project Name: TWG Work Order No.: <br /> Turlock,CA 95381 <br /> Project Manager: Don Chesney <br /> Conventional Chemistry Parameters by APHA/EPA Methods-Quality Control <br /> Reporting Spike Source <br /> Analyte Result Limit Units Level Result %REC RPD Notes <br /> Duplicate(AH13005-DUPI) <br /> PH 7.00 0.0100 pH Units 6.69 4 <br /> Reference(AH13005-SRM1) <br /> pH 7.00 0.0100 pH Units 7.00 100 <br /> Blank(AH13006-BLKI) <br /> Biochemical Oxygen Demand ND 2.0 mg/L <br /> Duplicate(AH13006-DUPI) <br /> Biochemical Oxygen Demand 1400 2.0 mg/L 1400 0.9 <br /> Reference(AH13006-SRMl) <br /> Biochemical Oxygen Demand 200 2.0 mg/L 198 99 <br /> Blank(AH 13007-BLKI) <br /> Total Kjeldahl Nitrogen ND 0.600 mg(L <br /> LCS(AH13007-BS1) <br /> Total Kjeldahl Nitrogen 7.86 0.600 mg/L 10.0 79 <br /> LCS Dup(AH13007-BSD 1) <br /> Total Kjeldahl Nitrogen 9.38 0.600 mg(L 10.0 94 18 <br /> Matrix Spike(AH13007-MSI) <br /> Total Kjeldahl Nitrogen 8.86 0.600 mg(L 10.0 ND 89 <br /> Matrix Spike Dup(AH13007-MSDI) <br /> Total Kjeldahl Nitrogen 8.85 0.600 mg/L 10.0 ND 89 0.09 <br /> Blank(AH 13008-BLKI) <br /> Total Suspended Solids(TSS) ND 1.0 mg/L <br /> LCS(AH13008-BS1) <br /> Total Suspended Solids(TSS) 1000 1.0 mg/L 1000 100 <br /> (;4/4w� <br /> Approved By <br /> Precision Enviro-Tech. o California D.O.H.S.Cert.#2387 <br /> Page 4 of 7 <br />