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' CALIFORNIA LABORATORY SERVICES <br /> ' 09/21/05 11:29 <br /> Wallace-Kuhl Associates-Stockton Project: Mountain House Stormwater ggaaSS�� <br /> 3410 West Hammer Ln., Suite F Project Number: 6504-05 C Uork Order k:C010464 <br /> Stockton CA,95219 Project Manager: Fred Gius COC p:58584 <br /> Conventional Chemistry Parameters by APHA/EPA Methods <br /> Reporting <br /> Analyle Result Limit Units Dilution Balch Prepared Analyzed Method Not <br /> SWB-MWI (CO10464-01)Water Sampled:09/14/0509:47 Received:09/14/0514:10 <br /> Total Alkalinity 290 5.0 mg/L 1 C'007071 09/16/05 09/16/05 EPA 310.1 <br /> Bicarbonate as CaCO3 290 5.0 <br /> Carbonate as CaCO3 ND 5.0 <br /> Hydroxide as CaCO3 ND 5.0 <br /> Chloride 480 10 20 C007003 09/15/05 09/15/05 EPA 300.0 <br /> Fluoride 0.95 0.10 11 1 09/15/05 11 <br /> Nitrate as NO3 29 2.0 <br /> Sulfate as SO4 260 5.0 10 ^ <br /> Specific Conductance(EC) 2500 1.0 pmhos/cm I 0007047 09/16/05 09/16/05 EPA 120.1 <br /> Methylene Blue Active Substances ND 0.10 mg/L C007064 09/16/05 09/16/05 EPA 425.1 <br /> Calcium 27 1.0 C007053 09/16/05 09/19/05 200.7/23408 <br /> Magnesium 17 1.0 ^ ^ ^ ^ ^ <br /> Potassium 5.7 1.0 <br /> Sodium 480 1.0 <br /> Hardness as CaCO3 140 1.0 ^ <br /> PH 8.10 pH Units 0006967 09/14/05 09/14/05 EPA 150.1 <br /> Total Dissolved Solids 1400 10 mg/L C007006 09/16/05 09/16/05 EPA 160.1 <br /> SWB-MW2(CO10464-02)Water Sampled:09/14/05 11:00 Received:09/14/05 14:10 <br /> Total Alkalinity 220 5.0 mg/L I C007071 09/16/05 09/16/05 EPA 310.1 <br /> Bicarbonate as CaCO3 220 5.0 <br /> Carbonate as CaCO3 ND 5.0 <br /> Hydroxide as CaCO3 ND 5.0 ^ <br /> Chloride 740 10 20 C007003 09/15/05 09/15/05 EPA 300.0 <br /> ' Fluoride 0.78 0.10 '' 1 <br /> Nitrate as NO3 5.9 2.0 1. <br /> Sulfate as SO4 170 5.0 10 ^ <br /> ' Specific Conductance(EC) 2900 1.0 pmhos/cm I C'007047 09/16/05 09/16/05 EPA 120.1 <br /> Methylene Blue Active Substances ND 0.10 mg/L C007064 09/16/05 09/16/05 EPA 425.1 <br /> Calcium 54 1.0 C007053 09/16/05 09/19/05 200.7/23408 <br /> Magnesium 37 1.0 ^ <br /> Potassium 14 1.0 <br /> Sodium 490 1.0 ^ <br /> Hardness as CaCO3 290 1.0 ^ <br /> PH 8.12 PH Units 0006967 09/14/05 09/14/05 EPA 150.1 <br /> Total Dissolved Solids 1600 10 mg/L 0007006 09/16/05 09/16/05 EPA 160.1 <br /> SWB-MW3(CO10464-03)Water Sampled:09/14/05 10:25 Received: 09/14/05 14:10 <br /> ' Total Alkalinity 260 5.0 mg/L I C007071 09/16/05 09/16/05 EPA 310.1 <br /> Bicarbonate as CaCO3 260 5.0 ^ <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />