Code of Federal Regulations · Section

§ 439.4 — General Limitation Or Standard For Ph

40 C.F.R. § 439.4

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The pH must remain within the range 6.0 to 9.0 in any discharge subject to BPT, BCT or NSPS limitations or standards in this part.

40 C.F.R. § 439.3 40 C.F.R. pt. 439, subpt. A

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