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ENVIRON-fENTAL .. � N <Cp Ot <br /> ryC <br /> u £ <br /> ANALYTICAL CHEMISTS <br /> May 20, 2003 Lab ID STK 331687-01 <br /> Customer ID: 3-14883 <br /> Lodi Grading & Paving, Inc. <br /> P.O. Box 1301 Sampled On : March 31, 2003-08:10 <br /> Lodi, CA 95240 Sampled By Ken Moffitt <br /> Received March 31, 2003-14:00 Stockton <br /> Received April 1, 2003-10:45 Santa Paula <br /> Description : HB Q Hydrant Matrix Drinking Water <br /> Project Bacteriological 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:4,5 <br /> pH 7.6 -- units 4500-H B 03/31/03:5346 4500-H B 03/31/2003:501 <br /> 08:10 <br /> General Mineral P:4,5 <br /> Total Hardness 45.5 2.5 mg/L Calculation Calculation <br /> Calcium 10 1 mg/L 200.7 04/02/03:A203 200.7 04/022003:GO2 <br /> Magnesium 5 1 mg/L 200.7 04/02/03:A203 200.7 04102r2003:GO2 <br /> Potassium 10 1 mg/L 200.7 04/02/03:A203 200.7 04/02/2003:GO2 <br /> Sodium 18 1 mg/L 200.7 04/02/03:A203 200.7 04/04/2003:NO2 <br /> Total Cations 1.9 -- meq/L Calculation Calculation <br /> Boron 0.09 0.05 mg/L 200.7 04/02/03:A203 200.7 04/02/2003:602 <br /> Copper ND 10 ug/L 10002 200.7 04/02/03:A203 200.7 04/022003:602 <br /> Iron 180 50 ug/L 3002 200.7 04/02/03:A203 200.7 04/02/2003:602 <br /> Manganese 80 10 ug/L 502 200.7 04/02/03:A203 200.7 04/02/2003:602 <br /> Zinc ND 20 ug/L 50002 200.7 04/02/03:A203 200.7 04/02/2003:602 <br /> Total Alkalinity (as CaCO3) 90 10 mg/L 2320B 04/07/03:A202 2320B 04/08/2003:A01 <br /> Hydroxide ND 10 mg/L 23208 04/07/03:A202 2320B 04/08/2003:A01 <br /> Carbonate ND 10 mg/L 2320E 04/07/03:A202 2320E 04/08/2003:A01 <br /> Bicarbonate 110 10 mg/L 23208 04/07/03:A202 2320B 04/08/2003:AO1 <br /> Sulfate ND I mg/L 5002 300.0 04t2l/03:A215 300.0 04/21/2003:AO2 <br /> Chloride 7 1 mg/L 5002 300.0 04r21/03:A215 300.0 04/21n003:A02 <br /> Nitrate ND 0.4 mg/L 45 300.0 04/21/03:A215 300.0 04/21/2003:AO2 <br /> 14:35 22:34 <br /> Nitrite as N ND 0.1 mg/L 1 450ONO2B 04/02/03:A251 450ONO2B 04/02/2003:A01 <br /> 09:05 09:17 <br /> Fluoride 0.2 0.1 mg/L 2 300.0 04/21/03:A215 300.0 04/212003:A02 <br /> Total Anions 2.0 -- meq/L Calculation Calculation <br /> Specific Conductance 190 1 umhos/cm 16002 2510E 04/02/03:A212 25108 04/022003:AO1 <br /> Total Dissolved Solids 160 40 mg/L 10002 2540C 04/02/03:A235 2540 C,E 04/032003:A00 <br /> MBAS (foaming agents) ND 0.1 mg/L 0.52 5540C 04/01/03:7218 55400 04/012003:T01 <br /> 16:20 16:25 <br /> Aggressiveness Index 11.0 1.0 mg/L Calculation Calculation <br /> Langlier Index 1 -0.9 1 1.0 1 mg/L Calculation Calculation <br /> ND=Non-Detect. PQL=Practical Quantitation Limit. ♦ PQL adjusted for dilutions, concentrations, dry weight reporting, or limited sample. <br /> �M`'CL = Maximium Conta�miienat Level. 2 - Secondary Standard. g STK331687: Chemical Results Page 1 <br /> Corp8l�tr�,,((M� &8 J�1t.�ot�'@6pptMptoryggste�rvatives: (4) H2SO4 pH C4t,J,&�l��ry pH 1 2 Field OMcs <br /> S=J74=?027v2'?60M... Stockton, <br /> Stagecoach Road Visalia,California(559) 3 <br /> kY��S� 2500 Stagecoach <br /> CA 95215 TEL (559)734-9473 <br /> TEL (805)659-0910 TEL (209)942-0181 FAX: (559)734-8435 <br /> FAX (805)5254172 FAX: (209)942-0423 Mobile: (559)737-2399 <br /> CA NELAPCertification No.01110CA CA ELAP Certification No.1563 <br /> CA ELAP Cenmcation No. 1573 <br />