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