40 CFR § 463.24 - New source performance standards.
§ 463.24 New source performance standards.
Any new source subject to this subpart must achieve performance standards (i.e., mass of pollutant discharged) calculated by multiplying the average process water usage flow rate for cleaning processes at a new source times the following pollutant concentrations:
Subpart B
[Cleaning water]
1 Within the range of 6.0 to 9.0 at all times.
The permit authority will obtain the average process water usage flow rate for the new source cleaning water processes from the permittee.