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lY ACLU <br /> F ITENTAL <br /> neL <br /> F ANALYTICAL CHEMISTS <br /> December 19, 2006 Lab ID : STK639913-05 <br /> Customer ID: 3-12023 <br /> Luhdorff & Scalmanini, Consulting Eng. <br /> Attn: Till Angermann Sampled On ; November 14, 2006-11:55 <br /> . 500 First Street Sampled By Gary Wuest <br /> Woodland, CA 95695 Received On: November. 14, 2006-12:50 <br /> Matrix System <br /> Description : Hall <br /> Project Quarterly Water Sampling <br /> Sample Results - Inorganic <br /> Analysis <br /> Sample Preparation Sample Anal y <br /> Constituent Results PQL Units MCL Method Date/ID Method Date/ID <br /> FGeneral Mineral <br /> PH 7.5 -- units 4500-H B 11/14/06:S346 4500-H B 11/14/2006:S00 <br /> 14:55 <br /> General Mineral P:1•5,4 <br /> Total Hardness 289 2.5 mg/L Calculation Calculation <br />' F Calcium 78 1 mg/L 200.7 11/17/06:A203 200.7 11/17/2006:A00 <br /> L Magnesium 23 1 mg/L 200.7 11/17/06:A203 200.7 11/17/2006:A00 <br /> E Potassium 2 1 mg/L 200.7 11/17/06:A203 200.7 ll/1712006:A00 <br /> Sodium 92 1 mg/L 200.7 11/17M A203 200.7 11117/2006:A00 <br /> Fi Total Cations 9.8 -- rneq/L Calculation Calculation <br /> Boron 0.40 0.05 mg/L 200.7 11/17106:A203 200.7 11/17/2006:A00 <br /> Copper ND 10 ug/L 10002 200.7 11/17/06:A203 ' 200.7 11/17/2006:A00 <br /> Iron ND 50 ug/L 300" 200.7 11/17/06:A203 200.7 1111712006:A00 <br /> Manganese ND 10 ug/L 502 200.7 11/17/06:A203 200.7 11117/2006:A00 <br /> Zinc ND 20 ug/L 50002 200.7 11117/06:A203 200.7 11/1712006:A00 <br /> Total Alkalinity (as CaCO3) 220 10 mg/L 2320E 11/16106:A202 2320B 11116/2006:A00 <br /> Hydroxide ND 10 mg/L 2320E 11116/06:A202 2320E i1/16l2006:A00 <br /> Carbonate ND 10 mg/L 2320B 11/16/06:A202 2320E 11!1612006-.A00 <br /> Bicarbonate 270 10 mg/L 2320B 11116106:A202 2320B 11/1612006:A00 <br /> F Sulfate 64 2 mg/L 5002 300.0 11/15106:B215 300.0 11/16/2006:A00 <br /> Chloride 130 24 mg/L 5002 300.0 11/15/06:B215 300.0 11/1612006:A00 <br /> Nitrate 19.3 0.4 mg/L 45 300.0 11/15/06:8215 300.0 11/16/2006:A00 <br /> 18:00 01:28 <br /> Nitrite as N ND 0.1 mg/L. 1 300.0 11/15/06:11215 300.0 11/1612006:A00 <br /> 18:00 01:28 <br /> Fluoride 0.2 0.1 mg/L 2 300.0 11/15/06:B215 300.0 ll/16/2006:A00 <br /> Total Anions 9.7 -- meq/L Calculation Calculation <br /> Specific Conductance 979 1 umhos/em 160102 25108 11/16106:A212 2510B 11/16/2006:A00 <br /> Total Dissolved Solids 590 40 mg/L 10002 2540C 11116106:A235 2540 C,E 1111712006:A00 <br /> FTotal Dissolved Solids (sum) 678 -- mg/L Calculation Calculation <br /> MBAS (foaming agents) ND 0.1 mg/L 0.52 11115106:A218 5540C 11/15/2006:800 <br /> 18:40 18:58 <br /> F) Aggressiveness index 12.1 1.0 mg/L Calculation Calculation <br /> Table continued next page... <br /> I STK639913: Chemical Results Page 9 <br /> Corporate Offices&Laboratory Office S Laboratory Field Office <br /> P.O.Box 2721853 Corporation Street 2500 Stagecoach Road Visalia,Calilornia <br /> Santa Paula,CA 93081-0272 Stockton.CA 95215 TEL: (559)734-9473 <br /> TEL_ (005)392-2000 TEL (209)942-0181 FAX. (559)7348435 <br /> FAX. (605)525.4172 FAX: (209)942-0423 Mobile: (559)737-2399 <br /> + CA NELAPCertlfiaation No,0111 OCA CA FLAP Cattlfication No.1563 <br />