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.
Code of Federal Regulations
[68 FR 12271, Mar. 13, 2003]
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.
Code of Federal Regulations
[68 FR 12271, Mar. 13, 2003]