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n <br />ii <br />J <br />n <br />r <br />WL Weck Laboratories, Inc. <br />111111[ 14 Environmental and Analytical Services - Since 1964 <br />Report Date: Tuesday, August 14, 2007 <br />Received Date: Thursday, July 26, 2007 <br />Received Time: 9:30 am <br />Turnaround Time: Normal <br />Client: Columbia Analytical Services - Simi Phone: (805) 577-2083 <br />2655 Park Center Dr., Ste. A FAX: (805) 526-7270 <br />Simi Valley, CA 93065 <br />Attn: Karen Ryan <br />Project: P0700685 <br />P.O.#: <br />Supplement To Certificate of Analysis <br />This is a Supplement to the Certificate of Analysis document issued previously for the above indicated project <br />V' <br />Work Order No: 7072636-01 <br />Sample ID: MW -1 <br />Matrix: Water <br />Sampled by: Client <br />Sampled: 07/24/07 10:14 <br />Sample Note: P0700685-001 <br />Reporting <br />Analyte Result <br />MDL Qualifier <br />Units Limit Dilution <br />Method <br />Prepared <br />Analyzed Batch <br />Calcium, Dissolved ........................19 <br />0.0039 <br />mg/1 0.10 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />Potassium, Dissolved ..................... <br />3.1 <br />0.079 <br />mg/1 0.10 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />Magnesium, Dissolved..................9.9 <br />0.0024 <br />mg/I 0.10 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />Sodium, Dissolved .........................11 <br />Carbonate Alkalinity as CaCO3.... <br />ND <br />0.21 <br />mg/1 0.50 1 <br />mg/I 2.0 l <br />EPA 6010 <br />SM 2320B <br />07/30/07 <br />08/01/07 <br />08/03/07 jba W7G1058 <br />08/02/07 tbd W7H0043 <br />Bicarbonate Alkalinity as HCO3 ... 48 <br />mg/I 2.0 1 <br />SM 2320B <br />08/01/07 <br />08/02/07 tbd W7H0043 <br />Total Dissolved Solids...................73 <br />4.0 <br />mg/I 10 1 <br />SM2540C <br />07/26/07 <br />07/27/07 ccc W7G0968 <br />Work Order No: 7072636-02 <br />Sample <br />ID: MW -211 <br />Matrix: Water <br />Sampled by: Client <br />Sampled: 07/24/07 09:08 <br />Sample Note: P0700685-002 <br />Reporting <br />Analyte <br />Result <br />MDL Qualifier <br />Units Limit Dilution <br />Method <br />Prepared <br />Analyzed Batch <br />Calcium, Dissolved ........................16 <br />0.0039 <br />mg/I 0.10 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />otassium, Dissolved ..................... 3.1 <br />Magnesium, Dissolved..................7.9 <br />0.079 <br />0.0024 <br />mg/I 0.10 1 <br />mg/I 0.10 1 <br />EPA 6010 <br />EPA 6010 <br />07/30/07 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />08/03/07 jba W7G1058 <br />odium, Dissolved .......:.................1 <br />l <br />0.21 <br />mg/I 0.50 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />Carbonate Alkalinity as CaCO3 <br />.... ND <br />mg/I 2.0 1 <br />SM 2320B <br />08/01/07 <br />08/02/07 tbd W7H0043 <br />Bicarbonate Alkalinity as HCO3 <br />... 97 <br />mg/I 2.0 1 <br />SM 2320E <br />08/01/07 <br />08/02/07 tbd W7H0043 <br />Total Dissolved Solids...................160 <br />4.0 <br />mg/I 10 1 <br />SM2540C <br />07/26/07 <br />07/27/07 ccc W7G0968 <br />Work Order No: 7072636-03 <br />Sample <br />ID: MW -3 <br />Matrix: Water <br />Sampled by: Client <br />Sampled: 07/24/07 12:04 <br />Sample Note: P0700685-003 <br />Reporting <br />Analyte Result <br />MDL Qualifier <br />Units Limit Dilution <br />Method <br />Prepared <br />Analyzed Batch <br />Calcium, Dissolved........................22 <br />0.0039 <br />mg/I 0.10 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />Potassium, Dissolved ..................... <br />3.5 <br />0.079 <br />mg/I 0.10 1 <br />EPA 6010 <br />07/30/07 <br />08/03/07 jba W7G1058 <br />Lab#:7072636 41 Page 1 of 5 <br />14859 East Clark Avenue, City of Industry, California 91745-1396 (626) 336-2139 FAX (626) 336-2634 <br />www.wecklabs.com <br />V' <br />