Field Sampling Plan Table 2.2

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Field Sampling Plan

Table 2.2 - Sample Container, Methods, Preservation, and Holding Times for Aqueous Samples

Parameters	Analytical Method	Sample Container	Preservation	Holding Times
Volatile Organic Compounds	SW8260A	Three 40-mL glass vials with Teflon-lined septum	HCl to pH<2; Cool to 4�C�2�C	14 days
Semivolatile Organic Compounds	SW8270B	One 1-liter widemouth amber glass jar with Teflon-lined lid	Cool to 4�C�2�C	Extract within 7 days of collection and analyze within 40 days of extraction
Explosives	SW8330 (lab modified)	One 1-liter widemouth amber glass jar with Teflon-lined lid	Cool to 4�C�2�C; Store in the dark	Extract within 7 days of collection and analyze within 40 days of extraction
ICP Metals (Barium, Chromium, Copper, Nickel, Zinc)	SW6010A	One 500 mL plastic bottle	HNO₃ to pH<2; Cool to 4�C�2�C	180 days
Arsenic, Cadmium, Lead	SW7060A, SW7131, SW7421	One 500 mL plastic bottle	HNO₃ to pH<2; Cool to 4�C�2�C	180 days
Mercury	SW7470A	One 500 mL plastic bottle	HNO₃ to pH<2; Cool to 4�C�2�C	13 days
HNO₃ = nitric acid