Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicy owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. (a) There shall be no discharge of process wastewater pollutants from metal preparation operations. (b) The discharge of process wastewater pollutants from all porcelain enameling coating operations shall not exceed the values set forth below: Subpart B—PSNS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average Mg/m 2 (pounds per million ft 2 ) of area coated Chromium 0.47 (0.10) 0.19 (0.04) Lead 0.13 (0.03) 0.11 (0.02) Nickel 0.69 (0.14) 0.47 (0.10) Zinc 1.29 (0.27) 0.53 (0.11) [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36544, Sept. 6, 1985]