25 Pa. Code § 250.10. Measurement of regulated substances in media.

§ 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 Land Recycling Program Technical Guidance Manual, Appendix A: Groundwater Monitoring Guidance, Department of Environmental Protection, document number 261-0300-101, or in accordance with an alternative sampling method that accurately measures regulated substances in groundwater.
(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).

Authority

   The provisions of this §  250.10 amended under sections 104(a) and 303(a) of the Land Recycling and Environmental Remediation Standards Act (35 P.S. § §  6026.104(a) and 6026.303(a)); and section 1920-A of The Administrative Code of 1929 (71 P.S. §  510-20).

Source

   The provisions of this §  250.10 amended November 19, 2021, effective November 20, 2021, 51 Pa.B. 7173. Immediately preceding text appears at serial page (382753).

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