§141.553. My system practices lime softening—is there any special provision regarding my combined filter effluent?
40 C.F.R. § 141.553
If your system practices lime softening, you may acidify representative combined filter effluent turbidity samples prior to analysis using a protocol approved by the State.
Notes, amendments, and revision history
Source
Source: 67 FR 1839, Jan. 14, 2002, unless otherwise noted.
Authority
Authority: 42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.
Source
Source: 40 FR 59570, Dec. 24, 1975, unless otherwise noted.