# 40 CFR 420.95 - Pretreatment standards for existing sources (PSES).

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000526 | 0.000175 |

Zinc | 0.000701 | 0.000234 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000169 | 0.0000563 |

Zinc | 0.000225 | 0.0000751 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000338 | 0.000113 |

Zinc | 0.000451 | 0.000150 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000939 | 0.000313 |

Zinc | 0.00125 | 0.000417 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Note: The above limitations are applicable to each fume scrubber associated with sulfuric acid pickling operations. | ||

Kilograms per day | ||

Lead | 0.0368 | 0.0123 |

Zinc | 0.0491 | 0.0164 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000920 | 0.000307 |

Zinc | 0.00123 | 0.000409 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000526 | 0.000175 |

Zinc | 0.000701 | 0.000234 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.00192 | 0.000638 |

Zinc | 0.00255 | 0.000851 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Note: The above limitations shall be applicable for each fume scrubber associated with hydrochloric acid pickling operations. | ||

Kilograms per day | ||

Lead | 0.0368 | 0.0123 |

Zinc | 0.0491 | 0.0164 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Note: The above limitations shall be applicable to the absorber vent scrubber wastewater associated with hydrochloric acid regeneration plants. | ||

Kilograms per day | ||

Lead | 0.245 | 0.0819 |

Zinc | 0.327 | 0.109 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00213 | 0.000852 |

Nickel | 0.00192 | 0.000638 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.000960 | 0.000384 |

Nickel | 0.000864 | 0.000288 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00626 | 0.00250 |

Nickel | 0.00563 | 0.00188 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00192 | 0.000768 |

Nickel | 0.00173 | 0.000576 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00322 | 0.00129 |

Nickel | 0.00289 | 0.000964 |

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Note: The above limitations shall be applicable to each fume scrubber associated with a combination acid pickling operation. | ||

Kilograms per day | ||

Chromium | 0.0819 | 0.0327 |

Nickel | 0.0735 | 0.0245 |

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

(a) Sulfuric acid (spent acid solutions and rinse waters) -

(1) Rod, wire, and coil.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000526 | 0.000175 |

Zinc | 0.000701 | 0.000234 |

(2) Bar, billet, and bloom.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000169 | 0.0000563 |

Zinc | 0.000225 | 0.0000751 |

(3) Strip, sheet, and plate.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000338 | 0.000113 |

Zinc | 0.000451 | 0.000150 |

(4) Pipe, tube, and other products.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000939 | 0.000313 |

Zinc | 0.00125 | 0.000417 |

(5) Fume scrubber.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kilograms per day | ||

Lead | 0.0368 | 0.0123 |

Zinc | 0.0491 | 0.0164 |

Note: The above limitations are applicable to each fume scrubber associated with sulfuric acid pickling operations.

(b) Hydrochloric acid pickling (spent acid solutions and rinse waters) -

(1) Rod, wire, and coil.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000920 | 0.000307 |

Zinc | 0.00123 | 0.000409 |

(2) Strip, sheet, and plate.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.000526 | 0.000175 |

Zinc | 0.000701 | 0.000234 |

(3) Pipe, tube, and other products.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Lead | 0.00192 | 0.000638 |

Zinc | 0.00255 | 0.000851 |

(4) Fume scrubber.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kilograms per day | ||

Lead | 0.0368 | 0.0123 |

Zinc | 0.0491 | 0.0164 |

Note: The above limitations shall be applicable for each fume scrubber associated with hydrochloric acid pickling operations.

(5) Acid regeneration (absorber vent scrubber).

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kilograms per day | ||

Lead | 0.245 | 0.0819 |

Zinc | 0.327 | 0.109 |

Note: The above limitations shall be applicable to the absorber vent scrubber wastewater associated with hydrochloric acid regeneration plants.

(c) Combination acid pickling (spent acid solutions and rinse waters) -

(1) Rod, wire, and coil.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00213 | 0.000852 |

Nickel | 0.00192 | 0.000638 |

(2) Bar, billet, and bloom.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.000960 | 0.000384 |

Nickel | 0.000864 | 0.000288 |

(3) Strip, sheet, and plate - continuous.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00626 | 0.00250 |

Nickel | 0.00563 | 0.00188 |

(4) Strip, sheet, and plate - batch.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00192 | 0.000768 |

Nickel | 0.00173 | 0.000576 |

(5) Pipe, tube, and other products.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kg/kkg (pounds per 1,000 lb) of product | ||

Chromium | 0.00322 | 0.00129 |

Nickel | 0.00289 | 0.000964 |

(6) Fume scrubber.

Subpart I

Pollutant or pollutant property | Pretreatment standards for existing sources | |
---|---|---|

Maximum for any 1 day | Average of daily values for 30 consecutive days | |

Kilograms per day | ||

Chromium | 0.0819 | 0.0327 |

Nickel | 0.0735 | 0.0245 |

Note: The above limitations shall be applicable to each fume scrubber associated with a combination acid pickling operation.