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eCFR
Title 40
Chapter I
Part 133
Title 40, Part 133 — Secondary Treatment Regulation
6 sections
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Section 133.100
Purpose.
Section 133.101
Definitions.
Section 133.102
Secondary treatment.
Section 133.103
Special considerations.
Section 133.104
Sampling and test procedures.
Section 133.105
Treatment equivalent to secondary treatment.