CCLME.ORG - 40 CFR PART 440—ORE MINING AND DRESSING POINT SOURCE CATEGORY

National
United States Regulations
40 CFR PART 440—ORE MINING AND DRESSING POINT SOURCE CATEGORY

PART 440—ORE MINING AND DRESSING POINT SOURCE CATEGORY

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Authority: Secs. 301, 304(b), (c) and (e), 306, 307, and 501 of the Clean Water Act (The Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977 and the Water Quality Act of 1987), (the Act), 33 U.S.C. 1311, 1314(b), (c) and (e), 1316, 1317, and 1361; 86 Stat. 816, Pub. L. 92–500; 91 Stat. 1567, Pub. L. 95–217; 101 Stat. 7, Pub. L. 100–4.

Source: 47 FR 54609, Dec. 3, 1982, unless otherwise noted.

Subpart A—Iron Ore Subcategory
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§ 440.10 Applicability; description of the iron ore subcategory.
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The provisions of this subpart A are applicable to discharges from (a) mines operated to obtain iron ore, regardless of the type of ore or its mode of occurrence; (b) mills beneficiating iron ores by physical (magnetic and nonmagnetic) and/or chemical separation; and (c) mills beneficiating iron ores by magnetic and physical separation in the Mesabi Range.

§ 440.11 [Reserved]
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§ 440.12 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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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 after application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines operated to obtain iron ore 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
Fe (dissolved).............................. 2.0 1.0
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.

(b) Except as provided in paragraph (c) of this section, the concentration of pollutants discharged from mills that employ physical (magnetic and nonmagnetic) and/or chemical methods to beneficiate iron ore shall not exceed:

------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
TSS......................................... 30 20
Fe (dissolved).............................. 2.0 1.0
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 waters from mills that employ magnetic and physical methods to beneficiate iron ore in the Mesabi Range. 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.

§ 440.13 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
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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 operated to obtain iron ore shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe (dissolved)................................ 2.0 1.0
------------------------------------------------------------------------

(b) Except as provided in paragraph (c) of this section the concentration of pollutants discharged from mills that employ physical (magnetic and nonmagnetic) and/or chemical methods to beneficiate iron ore shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe (dissolved)................................ 2.0 1.0
------------------------------------------------------------------------

(c)(1) Except as provided in paragraph (c) of this section, there shall be no discharge of process wastewater to navigable waters from mills that employ magnetic and physical methods to beneficiate iron ore in the Mesabi Range. 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 equal 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.

§ 440.14 New source performance standards (NSPS).
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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 applying the best available demonstrated technology (BADT):

(a) The concentration of pollutants discharged in mine drainage from mines operated to obtain iron ore shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe (dissolved)................................ 2.0 1.0
pH............................................ (\1\) (\1\)
TSS........................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0, to 9.0.

(b) Except as provided in paragraph (c) of this section, the concentration of pollutants discharged from mills that employ physical (magnetic and nonmagnetic) and/or chemical methods to beneficiate iron ore shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe (dissolved)................................ 2.0 1.0
pH............................................ (\1\) (\1\)
TSS........................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 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 waters from mills that employ magnetic and physical methods to beneficiate iron ore in the Mesabi Range. 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 equal 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.

§ 440.15 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
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Subpart B—Aluminum Ore Subcategory
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§ 440.20 Applicability; description of the aluminum ore subcategory.
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The provisions of this subpart B are applicable to discharges from facilities engaged in the mining of bauxite as an aluminum ore.

§ 440.21 [Reserved]
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§ 440.22 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing 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). The concentration of pollutants discharged in mine drainage from mines producing bauxite 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
Fe.......................................... 1.0 .5
A1.......................................... 2.0 1.0
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.

§ 440.23 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
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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). The concentration of pollutants discharged in mine drainage from mines producing bauxite ores shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe (total).................................... 1.0 0.5
Al............................................ 2.0 1.0
------------------------------------------------------------------------

§ 440.24 New Source performance standards (NSPS).
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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). The concentration of pollutants discharged in mine drainage from mines producting bauxite ores shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Fe (total).................................... 1.0 0.5
Al............................................ 2.0 1.0
pH............................................ (\1\) (\1\)
TSS........................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.

§ 440.25 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
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Subpart C—Uranium, Radium and Vanadium Ores Subcategory
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§ 440.30 Applicability; description of the uranium, radium and vanadium ores subcategory.
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The provisions of this subpart C are applicable to discharges from (a) mines either open-pit or underground, from which uranium, radium and vanadium ores are produced; and (b) mills using the acid leach, alkaline leach, or combined acid and alkaline leach process for the extraction of uranium, radium and vanadium. Only vanadium byproduct production from uranium ores is covered under this subpart.

§ 440.31 [Reserved]
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§ 440.32 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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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 after application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines, either open-pit or underground, from which uranium, radium and vanadium ores are produced excluding mines using in-situ leach methods shall not exceed:

------------------------------------------------------------------------
Effluent limitations
------------------------
Average of
daily
Effluent characteristic Maximum values for
for any 1 30
day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
------------------------
TSS............................................ 30 20
COD............................................ 200 100
Zn............................................. 1.0 0.5
Ra226 \1\ (dissolved).......................... 10 3
Ra226 \1\ (total).............................. 30 10
U.............................................. 4 2
pH............................................. (\2\) (\2\)
------------------------------------------------------------------------
\1\ Values in picocuries per liter (pCi/l).
\2\ Within the range 6.0 to 9.0.

(b) The concentrations of pollutants discharged from mills using the acid leach, alkaline leach or combined acid and alkaline leach process for the extraction of uranium, radium and vanadium including mill-mine facilities and mines using in-situ leach methods shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
TSS........................................... 30 20
COD........................................... ........... 500
As............................................ 1.0 .5
Zn............................................ 1.00 .5
Ra226 \1\ (dissolved)......................... 10 3
Ra226 \1\ (total)............................. 30 10
NH \3\........................................ ........... 100
pH............................................ (\2\) (\2\)
------------------------------------------------------------------------
\1\ Values in picocuries per liter (pCi/l).
\2\ Within the range 6.0 to 9.0.

§ 440.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
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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 mines, either open-pit or underground, that produce uranium ore, including mines using in-situ leach methods, shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
COD........................................... 200 100
Zn............................................ 1.00 .5
Ra226 \1\ (dissolved)......................... 10.0 3.0
Ra226 \1\ (total)............................. 30.0 10.0
U............................................. 4.0 2.0
------------------------------------------------------------------------
\1\ Values in picocuries per liter (pCi/l).

§ 440.34 New source performance standards (NSPS).
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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 mines, either open-pit or underground, that produce uranium ore, excluding mines using in situ leach methods, shall not exceed:

------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
COD......................................... 200 100
Zn.......................................... 1.0 0.5
Ra \1\ 226 (dissolved)...................... 10.0 3.0
Ra \1\ 226 (total).......................... 30.0 10.0
U........................................... 4.0 2.0
pH.......................................... (\2\) (\2\)
TSS......................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Values in picocuries per liter (pCi/l).
\2\ Within the range 6.0 to 9.0.

(b)(1) Except as provided in paragraph (b) of this section, there shall be no discharge of process wastewater to navigable waters from mills using the acid leach, alkaline leach or combined acid and alkaline leach process for the extraction of uranium or from mines and mills using in situ leach methods. 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.

§ 440.35 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
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Subpart D—Mercury Ore Subcategory
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§ 440.40 Applicability; description of the mercury ore subcategory.
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The provisions of subpart D are applicable to discharges from (a) mines, either open-pit or underground, that produce mercury ores; and (b) mills beneficiating mercury ores by gravity separation methods or by froth-flotation methods.

§ 440.41 [Reserved]
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§ 440.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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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 after application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines, either open-pit or underground, operated for the production of mercury ores shall not exceed the following limitations:

------------------------------------------------------------------------
Effluent limitations
---------------------------
Average of
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Hg.......................................... .002 .001
Ni.......................................... .2 .1
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.

(b)(1) Except as provided in paragraph (b) of this section, there shall be no discharge of process wastewater to navigable waters from mills beneficiating mercury ores by gravity separation methods or by froth flotation methods. 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)(1) of this section.

§ 440.43 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 mines, either open pit or underground, that produce mercury ores shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
MIligrams
per liter
-------------------------
Hg............................................ 0.002 0.001
------------------------------------------------------------------------

(b)(1) Except as provided in paragraph (b) of this section, there shall be no discharge of process wastewater to navigable waters from mills beneficiating mercury ores by gravity separation methods or by froth-flotation methods. 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 equal 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.

§ 440.44 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 mines, either open pit or underground, that produce mercury ores shall not exceed:

------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
-------------------------
Hg............................................ 0.002 0.001
pH............................................ (\1\) (\1\)
TSS........................................... 30.0 20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.

(b)(1) Except as provided in paragraph (b) of this section, there shall be no discharge of process wastewater to navigable waters from mills beneficiating mercury ores by gravity separation methods or by froth-flotation methods. 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 equal 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.

§ 440.45 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
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Subpart E—Titanium Ore Subcategory
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§ 440.50 Applicability; description of the titanium ore subcategory.
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The provisions of this subpart E are applicable to discharges from (a) mines obtaining titanium ores from lode deposits; (b) mills beneficiating titanium ores by electrostatic methods, magnetic and physical methods, or flotation methods; and (c) mines engaged in the dredge mining of placer deposits of sands containing rutile, ilmenite, leucoxene, monazite, zircon, and other heavy metals, 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).

§ 440.51 [Reserved]
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§ 440.52 Effluent limitations guidelines 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 after application of the best practicable control technology currently available (BPT):

(a) The concentration of pollutants discharged in mine drainage from mines obtaining titanium ores from lode 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
Fe.......................................... 2.0 1.0
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.

(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
Effluent characteristic daily values
Maximum for for 30
any 1 day consecutive
days
------------------------------------------------------------------------
Milligrams
per liter
---------------------------
TSS......................................... 30 20
Zn.......................................... 1.0 .5
Ni.......................................... .2 .1
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.

(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, or other heavy metals, 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
-------------------------
TSS........................................... 30 20
Fe............................................ 2 1
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.

§ 440.53 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 mines obtaining titanium ores from lode deposits 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
------------------------------------------------------------------------

(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
------------------------------------------------------------------------

(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, or 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
------------------------------------------------------------------------

§ 440.54 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 applications of the best available demonstrated technology (BADT):

(a) The concentration of pollutants discharged in mine drainage from mines obtaining titanium ores from lode deposits 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. (continued)