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Code of Federal Regulations Title 40. Protection of Environment § 40.420.93 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)
Current as of January 02, 2025 | Updated by Findlaw Staff
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 available technology economically achievable.
(a) Sulfuric acid pickling (spent acid solutions and rinse waters)—
(1) Rod, wire and coil.
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 scrubbers.
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
The above limitations shall be applicable to each fume scrubber associated with a sulfuric acid pickling operation.
(b) Hydrochloric acid pickling (spent acid solutions and rinse waters)—
(1) Rod, wire and coil.
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 scrubbers.
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
The above limitations shall be applicable to each fume scrubber associated with a hydrochloric acid pickling operation.
(5) Acid regeneration (absorber vent scrubber).
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
The above limitations shall be applicable to the absorber vent scrubber wastewater associated with hydrochloric acid regeneration plants.
(c) Combination acid pickling (spent acid solution and rinse waters)—
(1) Rod, wire, and coil.
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 scrubbers.
|
SUBPART I |
||
|---|---|---|
|
BAT effluent limitations |
||
|
Pollutant or pollutant property |
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 |
The above limitations shall be applicable to each fume scrubber associated with a combination acid pickling operation.
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.420.93 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT) - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-420-93/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.
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