40 CFR 461.64: Pretreatment standards for existing sources (PSES).

(a) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources listed below:

(1) Subpart F—Silver Chloride Cathodes—Chemically Reduced—PSES.

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of silver processed

English units—pounds per 1,000,000 pounds of silver processed

Lead 1,032.36 491.60

Silver 1,007.78 417.86

(2) Subpart F—Silver Chloride Cathodes—Electrolytic—PSES.

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of silver processed

English units—pounds per 1,000,000 pounds of silver processed

Lead 60.9 29.0

Silver 59.5 24.7

(3) Subpart F—Cell Testing—PSES.

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of cells produced

English units—pounds per 1,000,000 pounds of cells produced

Lead 22.1 10.5

Silver 21.6 8.9

(4) Subpart F—Floor and Equipment Wash—PSES.

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

Metric units—mg/kg of cells produced

English units—pounds per 1,000,000 pounds of cells produced

Lead 0.039 0.018

Silver 0.038 0.015

(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.