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33 U.S.C. 1251 et seq.
39 FR 4532, Feb. 1, 1974, unless otherwise noted.
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The following comprise the list of conventional pollutants designated pursuant to section 304(a)(4) of the Act:
1. Biochemical oxygen demand (BOD)
2. Total suspended solids (nonfilterable) (TSS)
3. pH
4. Fecal coliform
5. Oil and grease
[44 FR 44503, July 30, 1979; 44 FR 52685, Sept. 10, 1979]