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CERTIFICATE OF ANALYSIS <br />935 N 3 Carnnadti, 49.14.,g4deition, CA 95204 Phone! (2091 477-9105 <br />(f)Analytical Laboratory <br />PRTaor tromo-Ta <br />Chesney Consulting <br />P. 0. BOX 3794 <br />Turlock. CA- 95381 <br />Project Number: 17239 Louise Ave <br />Project Name: Ccista Vt,ork Order No.: <br />Project Manager: Don Chesney <br />Conventional Chemistry Parameters by APHA/EPA Methods - Quality Control <br />Analte Result <br />Reporting <br />Limit Units <br />Spike <br />Level <br />Source <br />Result %REC RPD Notes <br />Blank (A/4212/5431,K1) <br />NI) 0.400 Nitrate as N mg/L <br />LCS (AA21215-BS1) <br />Nitrate as N 1.95 0.400 rng/L 2.26 86 <br />LCS Dup (AA21215-13SD1) <br />Nitrate as N 2.28 0.400 trig/L. 2.26 1:01 16 <br />Matrix Spike (AA21215-4151) <br />Nitrate as N 9.68 0.400 mg,'L 2.82 7.02 44 <br />Matrix Spike Dup (AA21215-04SD1) <br />Nitrate as N 4.86 0.400 Mg. L 2.102 7.02 9 . <br />Reference (AA21215-SRM) <br />Nitrate as N 7.6g 0.400 rnt. 9.05 85 <br />Blank (AA21307-13LKI) <br />Total Alkalinity <br />Hydroxide Alkalinity <br />ND <br />ND <br />1.00 <br />1.00 <br />mgl, <br />Bicarbonate Alkalinity ND 1.00 <br />Carbonate Alkalinity N 1.00 <br />Duplicate (AA21307-D(jP1) <br />Total Alkalinity 643 1.00 mg/L 643 0.03 <br />Reference (AA21307-SRM1) <br />Total Alkalinity 10.3 1.00 mg/L 1.0i0 1103 <br />ocz/".az_ <br />Approved By <br />Precision Emiro-Tech. <> California ELAP Cert. 42387 <br />Page 5 of 7