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TABLE 2 (Cont.) Page 3 of 4 <br /> SAMPLING AND PRESERVATION PROCEDURES FOR DETECTION MONITORING <br /> Recommended Minimum <br /> Container a and Proper Maximum Volume Required <br /> Parameter Cleaning Procedures c Preservative Holding Time for Analysis <br /> Other Groundwater haractericties of Interest <br /> Oil and Grease G , D Cool 4°C H2SO4 to pH<2 28 days 500 mL <br /> Semivolatile T, G, D Cool 4°C 14 days 1,000 mL <br /> Nonvolatile organics <br /> Volatiles G, D, V, Cool 4°Ca 14 days 40 mL <br /> Cyanide P,G Cool 4°C,NaOH to pH>12 14 daysf 500 ml <br /> 0.6 g ascorbic aside <br /> Skinner Lust*. <br /> Volatiles G, D, V 4°C HCI to p11<2 d 14 days,7 if HCL not used 40 mL <br /> Semivolatiles G, D 4°C, HCl to pH<2 14 days 1 quart <br /> Metals T, P, A HNO3 to pH<2 6 months 1,000 mL <br /> 4-20-89 SEP <br />