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ENVIRONMENTAL <br /> nel' c <br /> Analytical Chemists <br /> June 2, 2008 Lab ID : STK0834357-003 <br /> Customer ID 3-12023 <br /> Luhdorff& Scalmanini, Consulting Eng. <br /> Attn: Till Angermann Sampled On : May 1, 2008-10:30 <br /> 500 First Street Sampled By : Gary Wuest <br /> Woodland, CA 95695 Received On : May 1, 2008-12:45 <br /> Matrix : Drinking Water <br /> Description : South Tracy#3 <br /> Project : Quarterly Water Sampling <br /> Sample Results- Inorganic <br /> Constituent Re;ult PQL Units MCL Sample Preparation Sample Analysis <br /> Method Date/ID Method Date/ID <br /> General Mineral <br /> Total Hardness 271 2.5 mg/L 200.7 05/06/08:204391 200.7 05/06/08:204811 <br /> Calcium 69 1 mg/L 200.7 05/06/08:204391 200.7 05106/08:204811 <br /> Magnesium 24 1 mg/L 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Potassium 2 1 mg/L 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Sodium 74 1 mg/L 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Total Cations 8.7 0.1 meq/L 200.7 05/06/08:204391 200.7 05/06/08:204811 <br /> Boron 0.9 0.1 mg/L 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Copper ND 10 ug/L 10002 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Iron ND 50 ug/L 3002 200.7 05105/08:204339 200.7 05/05/08:204775 <br /> Manganese ND 10 ug/L 502 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Zinc ND 20 ug/L 200.7 05/05/08:204339 200.7 05/05/08:204775 <br /> Total Alkalinity(as 180 10 mg/L 23208 05/10/08:204578 2320E 05/10/08:205035 <br /> CaCO3) <br /> Hydroxide ND 10 mg/L 2320E 05/10/08:204578 2320B 05/10/08:205035 <br /> Carbonate ND 10 mg/L 2320B 05/10/08:204578 2320B 05/10/08:205035 <br /> Bicarbonate 220 10 mg/L 2320E 05/10/08:204578 2320B 05/10/08:205035 <br /> Sulfate 165 2 mg/L 5002 300.0 05/02/08:204323 300.0 05/03/08:204745 <br /> Chloride 52 1 mg/L 5002 300.0 05/02/08:204323 300.0 05/03/08:204745 <br /> Nitrate 21.8 0.4 mg/L 45 300.0 05102/08:204323 300.0 05/03108104745 <br /> Nitrite as N ND 0.1 mg/L 1 300.0 05/02/08:204323 300.0 05/03/08:204745 <br /> Fluoride 0.2 0.1 mg/L 2 300.0 05/02/08:204323 300.0 05/03/08:204745 <br /> Total Anions 8.9 0.1 meq/L 2320E 05/10/08:204578 2320E 05/10/08:205035 <br /> pH 7.7 -- units 4500-H B 05/29/08:205274 4500HB 05/29/08:205819 <br /> Specific Conductance 854 1 ulnhos/cm 16002 2510B 05/12/08:204612 25108 05/12/08:205092 <br /> Total Dissolved Solids 550 20 mg/L 10002 2540 C,E 05/05/08:204356 2540C 05/06/08:204776 <br /> Total Dissolved Solids 628 0 mg/L 200.7 05/06/08:204391 200.7 05/06108:204811 <br /> (sum) <br /> MBAS(foaming agents) ND 0.1 mg/L 0.52 5540C 05/02/08:204320 5540C 05/02/08:204701 <br /> Aggressiveness Index 12.2 1 - 4500-H B 05/29/08:205274 4500HB 05/29/08:205819 <br /> Langlier Index 1 0.3 1 1 1 -- 4500-H B 05/29/08:205274 1 4500HB 05/29/08:205819 <br /> ND=Non-Detected. PQL=Practical Quantitation Limit. Containers: (P)Plastic Preservatives:H2SO4 pH<2,HNO3 pH<2 <br /> MCL=Maximum Contamination Level. 2-Secondary Standard. <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory ., Field Office <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue Visalia,California <br /> Santa Paula.CA 93060 Stockton,CA 95215 Chico,CA 95926 TEL:559/734-9473 <br /> TEL.805/392-2000 TEL:209/942-0182 TEL:530/343-5818 Mobile:559/737-2399 <br /> FAX:805/525-4172 FAX:209/942-0423 FAX:530/343-3807 FAX:5591734-8435 <br /> CA NELAP Certification No.01110CA CA ELAP Certification No.1563 CA ELAP Certification No.2670 <br />