View all text of Subpart B [§ 439.20 - § 439.27]
§ 439.27 - Pretreatment standards for new sources (PSNS).
Except as provided in 40 CFR 403.7, any new source subject to this subpart must achieve the following pretreatment standards:
Regulated parameter | Pretreatment standards 1 | Maximum daily discharge | Average monthly discharge must not exceed | 1 Acetone | 20.7 | 8.2 | 2 n-Amyl acetate | 20.7 | 8.2 | 3 Ethyl acetate | 20.7 | 8.2 | 4 Isopropyl acetate | 20.7 | 8.2 | 5 Methylene chloride | 3.0 | 0.7 |
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1 Mg/L (ppm).