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Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307(b) and (c), 308 and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) and the Water Quality Act of 1987 (the “Act”); 33 U.S.C. 1311, 1314(b), (c), (e), and (g), 1316(b) and (c), 1317(b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.
48 FR 49149, Oct. 24, 1983, unless otherwise noted.
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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. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below:
Subpart E
Core
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils | ||
| Chromium | 0.022 | 0.009 |
| Cyanide | 0.015 | 0.006 |
| Zinc | 0.073 | 0.031 |
| Aluminum | 0.321 | 0.16 |
Subpart E
Continuous Rod Casting Spent Lubricant
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum rod cast | ||
| Chromium | 0.00086 | 0.0004 |
| Cyanide | 0.0006 | 0.0002 |
| Zinc | 0.0029 | 0.0012 |
| Aluminum | 0.0127 | 0.0063 |
Subpart E
Continuous Rod Casting Contact Cooling Water
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum rod cast | ||
| Chromium | 0.086 | 0.035 |
| Cyanide | 0.056 | 0.024 |
| Zinc | 0.283 | 0.118 |
| Aluminum | 1.247 | 0.621 |
Subpart E
Solution Heat Treatment Contact Cooling Water
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum quenched | ||
| Chromium | 0.896 | 0.367 |
| Cyanide | 0.591 | 0.245 |
| Zinc | 2.974 | 1.243 |
| Aluminum | 13.10 | 6.519 |
Subpart E
Cleaning or Etching Bath
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched | ||
| Chromium | 0.079 | 0.032 |
| Cyanide | 0.052 | 0.022 |
| Zinc | 0.262 | 0.109 |
| Aluminum | 1.151 | 0.563 |
Subpart E
Cleaning or Etching Rinse
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched | ||
| Chromium | 0.612 | 0.251 |
| Cyanide | 0.404 | 0.167 |
| Zinc | 2.031 | 0.849 |
| Aluminum | 8.944 | 4.451 |
Subpart E
Cleaning or Etching Scrubber Liquor
| Pollutant or pollutant property | BAT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched | ||
| Chromium | 0.851 | 0.348 |
| Cyanide | 0.561 | 0.232 |
| Zinc | 2.82 | 1.179 |
| Aluminum | 12.43 | 6.19 |
[48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984]