Section 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.