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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 439.4: General limitation or standard for pH.

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
  4. PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY

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.

Collected 2026-08-27T02:26:04Z. Source file · JSON

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