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i o- Engineers Planners Economists Scientists REPORT OF ANALYTICAL RESULTS Date: 09/1.7/93. Client: CH2M HILL/SFO 6425 CHRISTIE AVE. Project Number: SF031604.FW SUITE 500 DEL MONTE - DISCO EMERYVILLE, CA 94608 Laboratory Number: 30710 Atten: MR. TIM BRAY Date Received: 09/05/91 sxaa�axxxxxxxxxxxxxxxxxxxxxxx xxx xxxxxxxxxxxxxxx=xxx�xxxxaaxsxrxxxxx xx xxx xxx xxxx=xxx xx g=xx Sample Description: MW-DIS-1 Laboratory Sample' Number: 30710004 Date Collected: 09/04/91 Matrix: WATER Analytical Parameter Method Rep Limit Result Units Ana Date =------------------------------------------------------------------------------------------------------------------------ Alkalinity as CaCO3 EPA310.1 1 637 mg/L 09/10/91 Calcium EPA200.7/SW6010 100 126000 ug/L 09/11/91 Carbonate EPA310.1(MOD) ---- 0 mg/L 09/10/91• Conductivity EPA120.1 10 1350 UMHOS* 09/10191 Copper EPA200.7/SW6010 2 <2 ug/L 09/11/91 Fecai Coliform SM908C 2 <2 MPN/dL 09/05/9$ Iron EPA200.7/SW6010 10 <10 ug/L 09/11/91 Hardness as CaCO3 S14314A N/A 568 mg/L 09/11/91 Bicarbonate EPA310.1(MOD) 1 777 mg/L 09/10/91! Chloride EPA300.0 0.34 77.1 mg/L 09/05/91 Sulfate EPA300.0 0.20 5.38 mg/L 09/05/41 MEAS EPA425.1 0.02 <0.02 mg/L 09/05/91 Magnesium EPA200.7/SW6010 25 61600 ug/L 09/11/91 Manganese EPA200.7/SW6010 1 4610 ug/L 09/11/91 i Sodium EPA200.7/SW6010 100 60200 ug/L 09/11/91 Lead EPA239.2/SW7421 4.0 138 ug/L 09/10/91 pH EPA150.1 . .... 6.89 units 09/05/91 Total Dissoived Solids EPA160.1 3 778 mg/L 09/07/91 Zinc EPA200.7/SW6010 2 8 ug/L 09/11/91 i I Results for non-aqueous matrices are based on dry sample weight unless noted otherwise. *UMHOS = UMHOS/CM f Reviewed by: INrrRPRPT(v�n9lO325) f CH2M HILL Redding Quality Analytical Loboratorles 5090 Coterpillor Rood,Redding,California 96003 916.244.5227