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- = ENVIRON7ENTAL <br /> r <br /> i ANALYTICAL CHEMISTS <br /> n June 20, 2006 Lab ID STK634414-03 <br /> i . Customer ID: 3-12023 <br /> IL Luhdorff & Scalmanini, Consulting Eng. <br /> Attn: Till Angermann Sampled On : May 31, 2006-11:15 <br /> 500 First Street " Sampled By Gary Wuest <br /> Woodland, CA 95695 Received May 31, 2006-13:55 Stockton <br /> Received June 1, 2006.12:00 <br /> Description; : South Tracy #3 Matrix Drinking Water <br /> F. Project Quarterly Water Sampling <br /> F <br /> Sample Results - Inorganic <br /> Sample Preparation Sample Analysis <br /> Constituent Results PQL Units MCL Method Date/ID Method Date/ID <br /> i � <br /> General Mineral P.1,5,4 <br /> pH 7.6 -- units 4500-H B 05131!06:5346 4500-H B 05/31/2006:S00 <br /> 14:33 <br /> I� General Mineral P:1.5,4 <br /> Total Hardness 278 2.5 mg/L Calculation Calculation <br /> Calcium 70 1 mg/L 200.7 06105106:8203 200.7 0610612006:800 <br /> t Magnesium 25 1 mg/L 200.7 06/05/06:8203 200.7 06/0612006:A04 <br /> Potassium 2 1 mg/L 200.7 06/05/06:B203 200.7 06/0612006:B00 <br /> Sodium 72 1 mg/L 200.7 06/05106:8203 200.7 06106/2006:B00 <br /> Total Cations 8.7 -- meq/L Calculation Calculation <br /> Boron 1.0 0.1 mg/L 200.7 06105/06:B203 200.7 0610612006:B00 <br /> Copper ND 10 ug/L 10002 200.7 06/05/06:B203 200.7 06/06/2006:B00 <br /> Iron ND 50 ug/L 3002 200.7 06/05/06:B203 200.7 06/06/2006:800 <br /> Manganese ND 10 ug/L 502 200.7 06/05/06:B203 200,7 06106/2006:800 <br /> Zinc ND 20 ug/L 50002 200.7 06/05/06:8203 200.7 06106/2006:800 <br /> Total Alkalinity (as CaCO3) 180 10 mg/L 2320B 06106/06:A202 23208 06/06/2006:A01 <br /> I Hydroxide ND 10 mg/L 2320B 06/06/06:A202 23208 06/06/2006:A01 <br /> Carbonate ND 10 mg/L 2320B 06/06106:A202 2320B 0610612006:A01 <br /> Bicarbonate 220 10 mg/L 2320E 06106/06:A202 23208 06/06/2006:A01 <br /> Sulfate 157 1 mg/L 5002 300.0 06/01/06:B215 300.0 0610212006:A00 <br /> Chloride 58 1 mg/L 5002 300.0 06/01106:B215 300.0 06/0212006:A00 <br /> Nitrate 29.1 0.4 mg/L 45 300.0 06/01/06:B215 300.0 06102/2006:A00 <br />! 1 ` 19:00 03:44 <br /> Nitrite as N ND 0.1 mg/L 1 300.0 06/01106:8215 300.0 06/0212006:A00 <br /> F19:00 03:44 <br /> Fluoride 0.3 0.1 mg/L 2 300.0 06/01/06:B215 300.0 06/0212006:A00 <br /> Total Anions 9.0 meq/L Calculation Calculation <br /> Specific Conductance 865 1 umhos/cin 16002 2510B 06102106:A212 2510E 06/0212006:A00 <br /> Total Dissolved Solids 110 40 mg/L 10002 25400 06/02/06:A235 2540 C,E 06/05/2006:A00 <br /> Total Dissolved Solids (sum) 633 -- mg/L Calculation Calculation <br /> t MEAS (foaming agents) ND 0.1 mg/L 0.52 5540C 06101/06:A218 5540C 06/011Z006:A00 <br /> 17:07 17:17 <br /> F Aggressiveness Index 12.1 1.0 mg/L Calculation Calculation <br /> Table continued next page... STK634414: Chemical Results Page 5 <br /> FCorporate Offices&Laboratory Office&Laboratory Field Office <br /> P.O.Box 2721853 Corporation Street 2500 Stagecoach Road Visalia.California <br /> Santa Paula,CA 93061-0272 Stockton,CA 96215 TEL (559)734-9473 <br /> w <br /> TEL (805)392-2000 TEL; (209)942-0181 FAX, (559)734-8435 <br /> FAX: (805)+525-4172 FAX: (209)942-0423 Mobilo: (559)737-2399 <br /> i F CA NELAPCertificatlon No.01 110C CA ELAP Certification No.1563 <br />