Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary silver process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart L--Film Stripping.
PSNS------------------------------------------------------------------------
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 2,951.000------------------------------------------------------------------------
(b) Subpart L--Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
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 56.840------------------------------------------------------------------------
(c) Subpart L--Precipitation and Filtration of Film Stripping Solutions.
PSNS------------------------------------------------------------------------
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 3,374.000------------------------------------------------------------------------
(d) Subpart L--Precipitation and Filtration of Photographic Solutions.
PSNS------------------------------------------------------------------------
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 1,559.000------------------------------------------------------------------------
(e) Subpart L--Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
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)................................ 1,618.000 711.400------------------------------------------------------------------------
(f) Subpart L--Electrolytic Refining.
PSNS------------------------------------------------------------------------
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 44.540------------------------------------------------------------------------
(g) Subpart L--Furnace Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
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 .000------------------------------------------------------------------------
(h) Subpart L--Leaching.
PSNS------------------------------------------------------------------------
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 5.040------------------------------------------------------------------------
(i) Subpart L--Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
PSNS------------------------------------------------------------------------
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)................................ 590.500 259.600------------------------------------------------------------------------
(j) Subpart L--Precipitation and Filtration of Nonphotographic Solutions.
PSNS------------------------------------------------------------------------
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)................................ 409.300 179.900------------------------------------------------------------------------
(k) Subpart L--Floor and Equipment Washdown.
PSNS------------------------------------------------------------------------
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 .000------------------------------------------------------------------------ [49 FR 8821, Mar. 8, 1984; 49 FR 26739, June 29, 1984] Sec. 421.127 [Reserved]