GroundRules
40 CFR 420.82: Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
- PART 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY
- Subpart H—Salt Bath Descaling Subcategory
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
(a) Salt bath descaling, oxidizing—(1) Batch, sheet and plate.
Subpart H
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.204 0.0876
Chromium 0.00292 0.00117
Nickel 0.00263 0.000876
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(2) Batch, rod and wire.
Subpart H
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.123 0.0526
Chromium 0.00175 0.000701
Nickel 0.00158 0.000526
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(3) Batch, pipe and tube.
Subpart H
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.496 0.213
Chromium 0.00709 0.00284
Nickel 0.00638 0.00213
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(4) Continuous.
Subpart H
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0964 0.0413
Chromium 0.00138 0.000551
Nickel 0.00124 0.000413
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(b) Salt bath descaling, reducing—(1) Batch.
Subpart H
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.0949 0.0407
Cyanide 0.00102 0.000339
Chromium 0.00136 0.000542
Nickel 0.00122 0.000407
pH (1) (1)
1 Within the range of 6.0 to 9.0.
(2) Continuous.
Subpart H
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.532 0.228
Cyanide 0.00569 0.00190
Chromium 0.00759 0.00304
Nickel 0.00683 0.00228
pH (1) (1)
1 Within the range of 6.0 to 9.0.
Collected 2026-08-27T02:26:04Z. Source file · JSON