Wis. Admin. Code Department of Natural Resources NR 273.024
Any new source subject to this subchapter shall achieve the following standards:
Table 2-17
Magnesium
Rolling Spent Emulsions
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of magnesium rolled with emulsions | |
Chromium | 0.028 | 0.011 |
Zinc | 0.076 | 0.032 |
Ammonia | 9.95 | 4.37 |
Fluoride | 4.44 | 1.97 |
Oil and grease | 0.746 | 0.746 |
Total suspended solids | 1.12 | 0.895 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-18
Magnesium
Forging Contact Cooling Water
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of forged magnesium cooled with water | |
Chromium | 0.107 | 0.044 |
Zinc | 0.295 | 0.122 |
Ammonia | 38.5 | 17.0 |
Fluoride | 17.2 | 7.63 |
Oil and grease | 2.89 | 2.89 |
Total suspended solids | 4.34 | 3.47 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-19
Magnesium
Forging Equipment Cleaning Wastewater
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of forged magnesium | |
Chromium | 0.002 | 0.0006 |
Zinc | 0.004 | 0.002 |
Ammonia | 0.532 | 0.234 |
Fluoride | 0.238 | 0.106 |
Oil and grease | 0.040 | 0.040 |
Total suspended solids | 0.060 | 0.048 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-20
Magnesium
Direct Chill Casting Contact Cooling Water
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of magnesium cast with direct chill methods | |
Chromium | 1.46 | 0.593 |
Zinc | 4.03 | 1.66 |
Ammonia | 527 | 232 |
Fluoride | 235 | 105 |
Oil and grease | 39.5 | 39.5 |
Total suspended solids | 59.3 | 47.4 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-21
Magnesium
Surface Treatment Spent Baths
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of magnesium surface treated | |
Chromium | 0.173 | 0.070 |
Zinc | 0.476 | 0.196 |
Ammonia | 62.1 | 27.3 |
Fluoride | 27.8 | 12.3 |
Oil and grease | 4.66 | 4.66 |
Total suspended solids | 6.99 | 5.6 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-22
Magnesium
Surface Treatment Rinse
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of magnesium surface treated | |
Chromium | 0.700 | 0.284 |
Zinc | 1.93 | 0.794 |
Ammonia | 252 | 111 |
Fluoride | 113 | 49 |
Oil and grease | 18.9 | 18.9 |
Total suspended solids | 28.4 | 22.7 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-23
Magnesium
Sawing or Grinding Spent Emulsions
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of magnesium sawed or ground | |
Chromium | 0.007 | 0.003 |
Zinc | 0.020 | 0.008 |
Ammonia | 2.60 | 1.15 |
Fluoride | 1.16 | 0.515 |
Oil and grease | 0.195 | 0.195 |
Total suspended solids | 0.293 | 0.234 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Table 2-24
Magnesium
Wet Air Pollution Control Scrubber Blowdown
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/off-kg (pounds per million off-pounds) of magnesium sanded and repaired or forged | |
Chromium | 0.229 | 0.093 |
Zinc | 0.632 | 0.260 |
Ammonia | 82.5 | 36.3 |
Fluoride | 36.9 | 16.4 |
Oil and grease | 6.19 | 6.19 |
Total suspended solids | 9.29 | 7.43 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times
Wis. Admin. Code Department of Natural Resources NR 273.024