40 CFR 421.126 - Pretreatment standards for new sources.

§ 421.126 Pretreatment standards for new sources.
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
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
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
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
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
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
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
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
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
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
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
(f) Subpart L—Electrolytic Refining.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/troy ounce of silver from electrolytic refining
Copper .973 .464
Zinc .775 .319
Ammonia (as N) 101.300 44.540
(g) Subpart L—Furnace Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/troy ounce of silver roasted, smelted or dried
Copper .000 .000
Zinc .000 .000
Ammonia (as N) .000 .000
(h) Subpart L—Leaching.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/troy ounce of silver produced from leaching
Copper .110 .053
Zinc .088 .036
Ammonia (as N) 11.470 5.040
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
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
(j) Subpart L—Precipitation and Filtration of Nonphotographic Solutions.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/troy ounce of silver precipitated
Copper 3.930 1.873
Zinc 3.132 1.290
Ammonia (as N) 409.300 179.900
(k) Subpart L—Floor and Equipment Washdown.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/troy ounce of silver production
Copper .000 .000
Zinc .000 .000
Ammonia (as N) .000 .000
[49 FR 8821, Mar. 8, 1984; 49 FR 26739, June 29, 1984]

Title 40 published on 2014-07-01

no entries appear in the Federal Register after this date.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
Statutes at Large
Public Laws