Title 40
SECTION 420.95
420.95 Pretreatment standards for existing sources (PSES).
§ 420.95 Pretreatment standards for existing sources (PSES).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.