Section 250.10. Measurement of regulated substances in media

(a) For measuring regulated substances in soil and sediments, analyses shall be performed on a dry weight basis.

(b) For metals in soil, analyses shall be performed on total metals, except for hexavalent and trivalent chromium, which analyses shall be performed individually.

(c) For groundwater, samples for metals analysis shall be field filtered and field acidified in accordance with the most current version of the Groundwater Monitoring Guidance Manual, Department of Environmental Protection, 3610-BK-DEP1973.

(d) For groundwater where monitoring is being performed at a drinking water well, samples for metals analysis shall be field acidified and unfiltered in accordance with the most current version of Groundwater Monitoring Guidance Manual, Department of Environmental Protection, 3610-BK-DEP1973.

(e) For surface water, samples for metals analysis shall be field acidified in accordance with approved EPA analytical methods in § 16.102 (relating to approved EPA analytical methods and detection limits).

(f) For air, samples and analyses shall be performed in accordance with Chapters 131 and 139 (relating to ambient air quality standards; and sampling and testing).