Wis. Admin. Code Department of Natural Resources NR 274.274
Any new source subject to this subchapter shall achieve the following standards:
Table 27-1
Primary Rare Earth Metals Dryer Vent Water Quench and Scrubber
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth chlorides | |
Hexachlorobenzene | 0.042 | 0.042 |
Chromium | 1.544 | 0.626 |
Lead | 1.168 | 0.542 |
Nickel | 2.295 | 1.544 |
Total suspended solids | 62.600 | 50.080 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 27-2
Primary Rare Earth Metals Dryer Vent Caustic Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth chlorides | |
Hexachlorobenzene | 0.007 | 0.007 |
Chromium | 0.272 | 0.110 |
Lead | 0.206 | 0.095 |
Nickel | 0.404 | 0.272 |
Total suspended solids | 11.010 | 8.808 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 27-3
Primary Rare Earth Metals Electrolytic Cell Water Quench and Scrubber
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of total mischmetal produced | |
Hexachlorobenzene | 0.094 | 0.094 |
Chromium | 3.474 | 1.409 |
Lead | 2.629 | 1.221 |
Nickel | 5.165 | 3.474 |
Total suspended solids | 140.900 | 112.700 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 27-4
Primary Rare Earth Metals Electrolytic Cell Caustic Wet Air Pollution Control
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of total mischmetal produced | |
Hexachlorobenzene | 0.000 | 0.000 |
Chromium | 0.000 | 0.000 |
Lead | 0.000 | 0.000 |
Nickel | 0.000 | 0.000 |
Total suspended solids | 0.000 | 0.000 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Table 27-5
Primary Rare Earth Metals Sodium Hypochlorite Filter Backwash
NSPS | ||
Maximum for any 1 day | Maximum for monthly average | |
Pollutant or pollutant property | mg/kg (pounds per million pounds) of total mischmetal produced | |
Hexachlorobenzene | 0.004 | 0.004 |
Chromium | 0.134 | 0.054 |
Lead | 0.101 | 0.047 |
Nickel | 0.199 | 0.134 |
Total suspended solids | 5.430 | 4.334 |
pH | (1) | (1) |
(1) Within the range of 7.5 to 10.0 at all times.
Wis. Admin. Code Department of Natural Resources NR 274.274