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E The Contractor shall retain the services of a State-certified laboratory to collect, preserve, transport, and conduct water quality testing on the water sample obtained in accordance with Chapter 15 of the California Code of Regulations, Title 22 "Domestic Water Quality and Monitoring" (Revised September, 1994) The water quality testing shall include the following 1 Inorganics (Section 64432) 2 Nitrate, Nitrite (Section 64432 1) 3 Asbestos (Section 64432 2) 4 Secondary Standards (Section 64449, Table 64449-A) 5 Secondary Standards (Section 64449, Table 64449-13) 6 General Mineral (Section 64449 (c) (2) 7 Volatile) Organic Chemicals (Section 64444, Table 64444-A (a) 8 Non-Volatile Synthetic) Organic Chemicals (Section 64444, Table 64444- ] � A (b) 9 Unregulated (Volatile) Organic Chemicals (Section 64450, Table 64450- A) 10 Unregulated Organic Chemicals (Section 64450, Table 64450-B) 11 Unregulated Organic Chemicals (Section 64450, Table 64450-C) 12 Unregulated Inorganic Chemicals (Section 64450, Table 64450-D) 13 Natural Radioactivity (Section 64441) 14 Man-Made Radioactivity (Section 64443) 15 Dissolved Iron 16 Dissolved Manganese 17 Radon i 18 Hexavalent Chromium 19 Perchlorate F Withdraw perforated pipe to the next sampling interval as determined by the Engineer and repeat Steps A through F 3 02 DRAWDOWN AND SAMPLING Measure drawdown between the 6-inch diameter sampling string and the 18-inch borehole during airlifting and pumping to ensure a tight seal has been obtained Every fifteen (15) minutes measure and record temperature, pH, and electrical conductivity of Iwater from the isolated interval during airlifting and pumping, and compare the results to temperature, pH, and electrical conductivity of the drilling fluid 1 August 2001 Division 111 -16 Ball Park& Park & Ride Wells Ph 1