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4 <br /> �ri�CC99a4 <br /> ENVIRON ENTAL w �o <br /> ti <br /> ANALYTICAL CHEMISTS <br /> June 20, 2006 Lab ID STK634414-05 <br /> Customer ID: 3-12023 <br /> [ Luhdorff & Scalmanini, Consulting Eng. <br /> Attn. Till Angermann Sampled On : May,3.1, ,2006-12:50 <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 : Hall Matrix : System <br /> Project Quarterly Water Sampling <br /> Sample Results - Inorganic <br /> Sample Preparation Sample Analysis <br /> Constituent Results PQL Units MCL Method Date/ID Method Date/ID <br /> General Mineral P:L5,4 <br /> pH 7.6 -- units 4500-H B 05131106:5346 4500-H B 05131/2006:500 <br /> 1 <br /> 14:36 <br /> General Mineral P,1,5,4 <br /> Total Hardness 292 2.5 mg/L Calculation Calculation <br /> Calcium 79 1 mg/L 200.7 06/05106:B203 200.7 06/0612006:B00 <br /> Magnesium 23 1 mg/L 200.7 06105106:8203 200.7 06/0612006:AO4 <br /> l Potassium 2 1 mg/L 200.7 06105106:13203 200.7 0610612006:800 <br /> Sodium 89 1 mg/L 200.7 06105106:8203 200.7 0610612006:800 <br /> Total Cations 9.8 -- meq/L Calculation Calculation <br /> Boron 0.5 0.1 mg/L 200.7 06/05/06:8203 200.7 0610612006:BOO <br /> Copper ND 10 ug/L 10002 200.7 06105106:13203 200.7 06106/2006:B00 <br /> Iron ND 50 ug/L 3002 200.7 06/05/06:B203 200.7 06/06/2006:B00 <br /> Manganese ND 10 ug/L 502 200.7 06105106:B203 200.7 06/06/2006:BOO <br /> Zinc ND 20 lig/L 50002 200.7 06105106:B203 200.7 06/06/2006;800 <br /> F } Total Alkalinity (as CaCO3) 220 10 mg/L 2320B 06/06/06:A202 2320B 06/06/2006:Aoi <br /> Hydroxide ND 10 mg/L 2320B 06106106:A202 2320B 06/06/2006:AO1 <br /> I Carbonate ND 10 mg/L 2320E 06/06106:A202 2320B 0610612006:A01 <br /> Bicarbonate 260 10 mg/L 23208 06/06/06:A202 2320B 06106/2006:AO1 <br /> Sulfate 68 1 mg/L 5002 300.0 06101/06:B215 300.0 06/02/2006:A00 <br /> Chloride 140 24 mg/L 5002 300.0 06/01/06:13215 300.0 06/02/2006:A00 <br /> Nitrate 19.2 0.4 mg/L 45 300.0 06/01106:13215 300.0 06/02/2006:ADO <br /> 19:00 05:04 <br /> Nitrite as N ND 0.1 mg/L 1 300.0 06/01/06:13215 300.0 06/02/2006:AO0 <br /> 19:40 05:04 <br />! Fluoride 0.2 0.1 mg/L 2 300.0 06/01/06:B215 300.0 06/02/2006:ADO <br /> Total Anions 9.9 meq/L Calculation Calculation <br /> Specific Conductance 985 1 umhos/cm 16002 2510B 06102/06:A212 2510E 06/0212006:A00 <br /> Total Dissolved Solids 560 40 mg/L 10002 25400 06/02106:A235 2540 CX 06105/2006:A00 <br /> 'total Dissolved Solids (sum) 680 -- mg/L Calculation Calculation <br /> MBAS (foaming agents) ND 0.1 mg/L 0.52 55400 06/01/06:A218 55400 06/01r20oG:A0p <br /> 17:07 17:19 <br /> Aggressiveness Index t2.2 1.0 mg/L Calculation Calculation <br /> a Table continued next page... STK634414: Chemical Results Page 9 <br /> 1 i Corporate Offices&Laboratory Office&Laboratory Field Office <br /> P.O.Box 272/953 Corporation Street 25DO Stagecoach Road Visalia,California <br />! Santa Paula,CA 93061-0272 Stockton,CA 95215 TEL (559)734-9473 <br /> TEL (805)392-2000 TEL (209)942-0181 FAX: (559)7349435 <br /> FAX: (805)525-4172 FAX: (209)942-0423 Mobile: (559)737-2399 <br /> it CA NELAP Certification No.0111 DCA CA ELAP Certification No.1563 <br />