40 CFR 421.124 - Standards of performance for new sources.

§ 421.124 Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart L—Film Stripping.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver from film stripping
Copper 64.450 30.720
Zinc 51.360 21.150
Ammonia (as N) 6,712.000 2,951.000
Total suspended solids 755.300 604.200
pH (1) (1)
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver from precipitation and filtration of film stripping solutions
Copper 1.242 .592
Zinc .990 .408
Ammonia (as N) 129.300 56.840
Total suspended solids 14.550 11.640
pH (1) (1)
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver precipitated
Copper 73.690 35.120
Zinc 58.720 24.180
Ammonia (as N) 7,674.000 3,374.000
Total suspended solids 863.600 690.900
pH (1) (1)
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver precipitated
Copper 34.048 16.226
Zinc 27.132 11.172
Ammonia (as N) 3,545.000 1,559.000
Total suspended solids 399.000 319.200
pH (1) (1)
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver from precipitation and filtration of photographic solutions
Copper 15.540 7.406
Zinc 12.380 5.099
Ammonia (as N) 1,618.000 711.400
Total suspended solids 182.100 145.700
pH (1) (1)
(f) Subpart L—Electrolytic Refining.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver from electrolytic refining
Copper .973 .464
Zinc .775 .319
Ammonia (as N) 101.300 44.540
Total suspended solids 11.400 9.120
pH (1) (1)
(g) Subpart L—Furnace Wet Air Pollution Control.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver roasted, smelted, or dried
Copper .000 .000
Zinc .000 .000
Ammonia (as N) .000 .000
Total suspended solids .000 .000
pH (1) (1)
(h) Subpart L—Leaching.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver produced from leaching
Copper .110 .053
Zinc .088 .036
Ammonia (as N) 11.470 5.040
Total suspended solids 1.290 1.032
pH (1) (1)
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver produced from leaching or silver precipitated
Copper 5.671 2.703
Zinc 4.519 1.861
Ammonia (as N) 590.500 259.600
Total suspended solids 66.450 53.160
pH (1) (1)
(j) Subpart L—Precipitation and Filtration of Nonphotograhic Solutions.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
mg/troy ounce of silver precipitated
Copper 3.930 1.873
Zinc 3.132 1.290
Ammonia (as N) 409.300 179.900
Total suspended solids 46.050 36.840
pH (1) (1)
(k) Subpart L—Floor and Equipment Washdown.
NSPS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
1 Within the range of 7.5 to 10.0 at all times.
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)
[49 FR 8821, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]

Title 40 published on 2013-07-01

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