CCLME.ORG - 40 CFR PART 440—ORE MINING AND DRESSING POINT SOURCE CATEGORY
http://www.cclme.org

40 CFR PART 440—ORE MINING AND DRESSING POINT SOURCE CATEGORY
1-40CFR440.txt - CFR - 5/16/2006 0:00:00 - Regulation - US

 Download << First Page < Previous Page Next Page > Last Page >>
Loading (50 kb)...'
(continued)


(b) The concentration of pollutants discharged from mills beneficiating titanium ores by electrostatic methods, magnetic and physical methods, or flotation methods shall not exceed:



------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Zn............................................ 1.0 0.5
pH............................................ (\1\) (\1\)
TSS........................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.1.


(c) The concentration of pollutants discharged in mine drainage from mines engaged in the dredge mining of placer deposits of sands containing rutile, ilmenite, leucoxene, monazite, zircon and the milling techniques employed in conjunction with the dredge mining activity (milling techniques employed include the use of wet gravity methods in conjunction with electrostatic or magnetic methods) shall not exceed:



------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe............................................ 2.0 1.0
pH............................................ (\1\) (\1\)
TSS........................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.1.


§ 440.55 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart F—Tungsten Ore Subcategory
top
§ 440.60 Applicability; description of the tungsten ore subcategory.
top
The provisions of this subpart F are applicable to discharges from (a) mines that produce tungsten ore and (b) mills that process tungsten ore by either the gravity separation or froth-flotation methods.

§ 440.61 [Reserved]
top
§ 440.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
top
Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines producing 5000 metric tons (5512 short tons) or more of tungsten bearing ores per year shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .3 .15
Zn.......................................... 1.0 .5
Pb.......................................... .6 .3
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(b) The concentration of pollutants discharged in mine drainage from mines producing less than 5000 metric tons (5512 short tons) or discharged from mills processing less than 5000 metric tons (5512 short tons) of tungsten ores per year by methods other than ore leaching shall not exceed:



------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
TSS........................................... 50 30
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(c) The concentration of pollutants discharged from mills processing 5000 metric tons (5512 short tons) or more of tungsten ores per year by purely physical methods including ore crushing, washing, jigging, heavy media separation, and magnetic and electrostatic separation shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(d) The concentration of pollutants discharged from mills processing 5000 metric tons (5512 short tons) or more of tungsten ores per year by froth flotation methods shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


§ 440.63 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
top
Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) The concentration of pollutants discharged in mine drainage from tungsten mines shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
Cd.......................................... 0.10 0.05
Cu.......................................... 0.30 0.15
Zn.......................................... 1.0 0.5
------------------------------------------------------------------------


(b) The concentration of pollutants discharged from mills shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
Cd.......................................... 0.10 0.05
Cu.......................................... 0.3 0.15
Zn.......................................... 1.0 0.5
------------------------------------------------------------------------


§ 440.64 New source performance standards (NSPS).
top
Except as provided in subpart L of this part any new source subject to this subpart must achieve the following NSPS representing the degree of effluent reduction attainable by the application of the best available demonstrated technology (BADT):

(a) The concentration of pollutants discharged in mine drainage from tungsten mines shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
Cd.......................................... 0.10 0.05
Cu.......................................... 0.30 0.15
Zn.......................................... 1.0 0.5
pH.......................................... (\1\) (\1\)
TSS......................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.


(b) The concentration of pollutants discharged from mills shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
Cd.......................................... 0.10 0.05
Cu.......................................... 0.3 0.15
Zn.......................................... 1.0 0.5
pH.......................................... (\1\) (\1\)
TSS......................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.


§ 440.65 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart G—Nickel Ore Subcategory
top
§ 440.70 Applicability; description of the nickel ore subcategory.
top
The provisions of this subpart G are applicable to discharges from (a) mines that produce nickel ore and (b) mills that process nickel ore.

§ 440.71 [Reserved]
top
§ 440.72 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
top
Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines producing 5000 metric tons (5512 short tons) or more of nickel bearing ores per year shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .3 .15
Zn.......................................... 1.0 .5
Pb.......................................... .6 .3
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(b) The concentration of pollutants discharged in mine drainage from mines producing less than 5,000 metric tons (5,512 short tons) or discharged from mills processing less than 5,000 metric tons (5,512 short tons) of nickel ores per year by methods other than ore leaching shall not exceed:



------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
TSS........................................... 50 30
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(c) The concentration of pollutants discharged from mills processing 5,000 metric tons (5,512 short tons) or more of nickel ores per year by purely physical methods including ore crushing, washing, jigging, heavy media separation and magnetic and electrostatic separation shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0


(d) The concentration of pollutants discharged from mills processing 5,000 metric tons (5,512 short tons) or more of nickel ore per year by froth flotation methods shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


§ 440.73 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). [Reserved]
top
§ 440.74 New source performance standards (NSPS). [Reserved]
top
§ 440.75 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart H—Vanadium Ore Subcategory (Mined Alone and Not as a Byproduct)
top
§ 440.80 Applicability; description of the vanadium ore subcategory.
top
The provisions of this subpart H are applicable to discharges from (a) mines that produce vanadium ore (recovered alone and not as a by-product of uranium mining and mills) and (b) mills that process vanadium ore (recovered alone, not as a byproduct of uranium mining and mills).

§ 440.81 [Reserved]
top
§ 440.82 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
top
Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines producing 5,000 metric tons (5,512 short tons) or more of vanadium bearing ores per year shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .3 .15
Zn.......................................... 1.0 .5
Pb.......................................... .6 .3
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(b) The concentration of pollutants discharged in mine drainage from mines producing less than 5,000 metric tons (5,512 short tons) or discharged from mills processing less than 5,000 metric tons (5,512 short tons) of vanadium ore per year by methods other than ore leaching shall not exceed:



------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
TSS........................................... 50 30
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(c) The concentration of pollutants discharged from mills processing 5,000 metric tons (5,512 short tons) or more of vanadium ores per year by purely physical methods including ore crushing, washing, jigging, heavy media separation, and magnetic and electrostatic separation shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(d) The concentration of pollutants discharged from mills processing 5,000 metric tons (5,512 short tons) or more of vanadium ores per year by froth flotation methods shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


§ 440.83 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). [Reserved]
top
§ 440.84 New source performance standards (NSPS). [Reserved]
top
§ 440.85 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart I—Antimony Ore Subcategory
top
§ 440.90 Applicability; description of the antimony ore subcategory.
top
The provisions of this subpart I are applicable to discharges from (a) mines that produce antimony ore and (b) mills that process antimony ore.

§ 440.91 [Reserved]
top
§ 440.92 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). [Reserved]
top
§ 440.93 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT). [Reserved]
top
§ 440.94 New source performance standards (NSPS). [Reserved]
top
§ 440.95 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart J—Copper, Lead, Zinc, Gold, Silver, and Molybdenum Ores Subcategory
top
§ 440.100 Applicability; description of the copper, lead, zinc, gold, silver, and molybdenum ores subcategory.
top
(a) The provisions of this subpart J are applicable to discharges from—

(1) Mines that produce copper, lead, zinc, gold, silver, or molybdenum bearing ores, or any combination of these ores from open-pit or underground operations other than placer deposits;

(2) Mills that use the froth-flotation process alone or in conjunction with other processes, for the beneficiation of copper, lead, zinc, gold, silver, or molybdenum ores, or any combination of these ores;

(3) Mines and mills that use dump, heap, in-situ leach, or vat-leach processes to extract copper from ores or ore waste materials; and

(4) Mills that use the cyanidation process to extract gold or silver.

(b) Discharge from mines or mines and mills that use gravity separation methods (including placer or dredge mining or concentrating operations, and hydraulic mining operations) to extract gold ores are regulated under subpart M.

(c) Discharge from mines (including placer or dredge mining, and hydraulic mining operations) or mines and mills that use gravity separation methods to extract silver from placer ores are not covered under this part.

(d) The provisions of this subpart shall not apply to discharges from the Quartz Hill Molybdenum Project in the Tongass National Forest, Alaska.

[47 FR 54609, Dec. 3, 1982, as amended at 53 FR 18788, May 24, 1988]

§ 440.101 [Reserved]
top
§ 440.102 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology (BPT).
top
Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines operated to obtain copper bearing ores, lead bearing ores, zinc bearing ores, gold bearing ores, or silver bearing ores, or any combination of these ores open-pit or underground operations other than placer deposits shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cu.......................................... .30 .15
Zn.......................................... 1.5 .75
Pb.......................................... .6 .3
Hg.......................................... .002 .001
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(b) The concentration of pollutants discharged from mills which employ the froth flotation process alone or in conjunction with other processes, for the beneficiation of copper ores, lead ores, zinc ores, gold ores, or silver ores, or any combination of these ores shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
Pb.......................................... .6 .3
Hg.......................................... .002 .001
Cd.......................................... .10 .05
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(c)(1) Except as provided in paragraph (c) of this section, there shall be no discharge of process wastewater to navigable water from mines and mills which employ dump, heap, in situ leach or vat leach processes for the extraction of copper from ores or ore waste materials. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982.

(2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equivalent to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section.

(d)(1) Except as provided in paragraph (d) of this section, there shall be no discharge of process wastewater to navigable waters from mills which extract gold or silver by use of the cyanidation process. The Agency recognizes that the elimination of the discharge of pollutants to navigable waters may result in an increase in discharges of some pollutants to other media. The Agency has considered these impacts and has addressed them in the preamble published on December 3, 1982.

(2) In the event that the annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility exceeds the annual evaporation, a volume of water equivalent to the difference between annual precipitation falling on the treatment facility and the drainage area contributing surface runoff to the treatment facility and annual evaporation may be discharged subject to the limitations set forth in paragraph (a) of this section.

(e) The concentration of pollutants discharged in mine drainage from mines producing 5,000 metric tons (5,512 short tons) or more of molybdenum bearing ores per year shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .3 .15
Zn.......................................... 1.0 .5
Pb.......................................... .6 .3
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0


(f) The concentration of pollutants discharged in mine drainage from mines producing less than 5,000 metric tons (5,512 short tons) or discharged from mills processing less than 5,000 metric tons (5,512 short tons) of molybdenum ores per year by methods other than ore leaching shall not exceed:



------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
TSS........................................... 50 30
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


(g) The concentration of pollutants discharged from mills processing 5,000 metric tons (5,512 short tons) or more of molybdenum ores per year by purely physical methods including ore crushing, washing, jigging, heavy media separation shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily value
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0


(h) The concentration of pollutants discharged from mills processing 5,000 metric tons (5,512 short tons) or more of molybdenum ores per year by froth flotation methods shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristics daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Cd.......................................... .10 .05
Cu.......................................... .30 .15
Zn.......................................... 1.0 .5
As.......................................... 1.0 .5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.


[47 FR 54609, Dec. 3, 1982, as amended at 53 FR 18788, May 24, 1988]

§ 440.103 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
top
Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) The concentration of pollutants discharged in mine drainage from mines that produce copper, lead, zinc, gold, silver, or molybdenum bearing ores or any combination of these ores from open-pit or underground operations other than placer deposits shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
Cu.......................................... 0.30 0.15
Zn.......................................... 1.5 0.75
Pb.......................................... 0.6 0.3
Hg.......................................... 0.002 0.001
Cd.......................................... 0.10 0.05
------------------------------------------------------------------------


(b) The concentration of pollutants discharged from mills that use the froth-flotation process alone, or in conjunction with other processes, for the beneficiation of copper, lead, zinc, gold, silver, or molybdenum ores or any combination of these ores shall not exceed:



------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
Cu.......................................... 0.30 0.15
Zn.......................................... 1.00.5 (continued)
Download << First Page < Previous Page Next Page > Last Page >>

Questions and Comments: jekstrom at stanford dot edu. 2008-2009 All Rights Reserved | http://cclme.org