40 CFR 421.122 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§ 421.122
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver from film stripping | ||
| Copper | 95.670 | 50.350 |
| Zinc | 73.510 | 30.720 |
| Ammonia (as N) | 6,712.000 | 2,951.000 |
| Total suspended solids | 2,065.000 | 981.800 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
(b)
Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver from precipitation and filtration of film stripping solutions | ||
| Copper | 1.843 | .970 |
| Zinc | 1.416 | .592 |
| Ammonia (as N) | 129.300 | 56.840 |
| Total suspended solids | 39.770 | 18.920 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver precipitated | ||
| Copper | 109.400 | 57.570 |
| Zinc | 84.050 | 35.120 |
| Ammonia (as N) | 7,674.000 | 3,374.000 |
| Total suspended solids | 2,361.000 | 1,123.000 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver precipitated | ||
| Copper | 50.540 | 26.600 |
| Zinc | 38.836 | 16.226 |
| Ammonia (as N) | 3,545.000 | 1,559.000 |
| Total suspended solids | 1,090.600 | 518.700 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver from precipitation and filtration of photographic solutions | ||
| Copper | 23.070 | 12.140 |
| Zinc | 17.730 | 7.406 |
| Ammonia (as N) | 1,618.000 | 711.400 |
| Total suspended solids | 497.800 | 236.800 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver from electrolytic refining | ||
| Copper | 1.444 | .760 |
| Zinc | 1.110 | .464 |
| Ammonia (as N) | 101.300 | 44.540 |
| Total suspended solids | 31.160 | 14.820 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver roasted, smelted, or dried | ||
| Copper | 1.273 | .670 |
| Zinc | .978 | .409 |
| Ammonia (as N) | 89.310 | 39.260 |
| Total suspended solids | 27.470 | 13.070 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver produced from leaching | ||
| Copper | .164 | .086 |
| Zinc | .126 | .053 |
| Ammonia (as N) | 11.470 | 5.040 |
| Total suspended solids | 3.526 | 1.677 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
(i)
Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver produced from leaching or silver precipitated | ||
| Copper | 8.417 | 4.430 |
| Zinc | 6.468 | 2.703 |
| Ammonia (as N) | 590.500 | 259.600 |
| Total suspended solids | 181.700 | 86.390 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver precipitated | ||
| Copper | 5.833 | 3.070 |
| Zinc | 4.482 | 1.873 |
| Ammonia (as N) | 409.300 | 179.900 |
| Total suspended solids | 125.900 | 59.870 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/troy ounce of silver production | ||
| Copper | .000 | .000 |
| Zinc | .000 | .000 |
| Ammonia (as N) | .000 | .000 |
| Total suspended solids | .000 | .000 |
| pH | (1) | (1) |
| 1 Within the range of 7.5 to 10.0 at all times. | ||
[49 FR 8821, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]
Title 40 published on 2012-07-01
no entries appear in the Federal Register after this date.
This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.
This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].
It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.
