1. Regulations
  2. title 40
  3. chapter I-i30
  4. part 421
  5. subpart T
  6. § 421.221

Collapse to view only § 421.221 - Specialized definitions.

§ 421.220 - Applicability: Description of the secondary molybdenum and vanadium subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of molybdenum or vanadium by secondary molybdenum and vanadium facilities.

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.220

§ 421.221 - Specialized definitions.

For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.221

§ 421.222 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:

(a) Leach tailings.

BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic40.77818.145 Chromium8.5853.512 Lead8.1953.902 Nickel37.46024.779 Iron23.41011.902 Molybdenum[Reserved][Reserved] Ammonia (as N)8078.0003551.000 Total Suspended Solids799.950380.460 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Molybdenum filtrate solvent extraction raffinate.

BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic121.72054.162 Chromium25.62510.483 Lead24.46011.648 Nickel111.81973.964 Iron69.88735.526 Molybdenum[Reserved][Reserved] Ammonia (as N)24114.00010600.000 Total Suspended Solids2387.8001135.660 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Vanadium decomposition wet air pollution control.

BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of vanadium produced by decomposition Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000 Total suspended solids0.0000.000 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(d) Molybdenum drying wet air pollution control.

BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum produced Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000 Total suspended solids0.0000.000 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Pure Grade Molybdenum.

BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of pure molybdenum produced Arsenic48.65521.650 Chromium10.2434.190 Lead9.7784.656 Nickel44.69829.566 Iron27.93614.201 Molybdenum[Reserved][Reserved] Ammonia (as N)9638.0004237.000 Total Suspended Solids954.480453.960 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31703, Aug. 3, 1990]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.222

§ 421.223 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:

(a) Leach Tailings.

BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic27.12012.097 Chromium7.2192.927 Lead5.4632.536 Nickel10.7317.219 Iron23.41311.902 Molybdenum[Reserved][Reserved] Ammonia (as N)8078.0003551.000

(b) Molybdenum filtrate solvent extraction raffinate.

BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic80.95236.108 Chronium21.5488.736 Lead16.3067.571 Nickel32.03121.548 Iron69.88735.526 Molybdenum[Reserved][Reserved] Ammonia (as N)24114.00010600.000

(c) Vanadium decomposition wet air pollution control.

BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of vanadium produced by decomposition Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000

(d) Molybdenum drying wet air pollution control.

BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum produced Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000

(e) Pure Grade Molybdenum.

BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of pure molybdenum produced Arsenic32.35914.434 Chromium8.6143.492 Lead6.5183.026 Nickel12.8048.614 Iron27.93614.201 Molybdenum[Reserved][Reserved] Ammonia (as N)9638.0004237.000
[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31703, 31704, Aug. 3, 1990]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.223

§ 421.224 - Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Leach tailings.

NSPS for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic27.12012.097 Chromium7.2192.927 Lead5.4632.536 Nickel10.7317.219 Iron23.41311.902 Molybdenum[Reserved][Reserved] Ammonia (as N)8078.0003551.000 Total Suspended Solids292.665234.132 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Molybdenum filtrate solvent extraction raffinate.

NSPS for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic80.95236.108 Chromium21.5488.736 Lead16.3067.571 Nickel32.03121.548 Iron69.88735.526 Molybdenum[Reserved][Reserved] Ammonia (as N)24114.00010600.000 Total Suspended Solids873.585698.868 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Vanadium decomposition wet air pollution control.

NSPS for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum and vanadium produced Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000 Total suspended solids0.0000.000 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(d) Molybdenum drying wet air pollution control.

NSPS for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum and vanadium produced Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000 Total suspended solids0.0000.000 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Pure Grade Molybdenum.

NSPS for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of pure molybdenum produced Arsenic32.35914.434 Chromium8.6143.492 Lead6.5183.026 Nickel12.8048.614 Iron27.93614.201 Molybdenum[Reserved][Reserved] Ammonia (as N)9638.0004237.000 Total Suspended Solids349.200279.360 pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31704, Aug. 3, 1990]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.224

§ 421.225 - [Reserved]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.225

§ 421.226 - 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 molybdenum and vanadium process wastewater introduced into a POTW shall not exceed the following values:

(a) Leach tailings.

PSNS for the Secondary Molybdenum and Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic27.12012.097 Chromium7.2192.927 Lead5.4632.536 Nickel10.7317.219 Iron23.41311.902 Molybdenum[Reserved][Reserved] Ammonia (as N)8078.0003551.000

(b) Molybdenum filtrate solvent extraction raffinate.

PSNS for the Secondary Molybdenum And Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced Arsenic80.95236.108 Chromium21.5488.736 Lead16.3067.571 Nickel32.03121.548 Iron69.88735.526 Molybdenum[Reserved][Reserved] Ammonia (as N)24114.00010600.000

(c) Vanadium decomposition wet air pollution control.

PSNS for the Secondary Molybdenum and Vandadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) vanadium produced by decomposition Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000

(d) Molybdenum drying wet air pollution control.

PSNS for the Secondary Molybdenum and Vandadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum produced Arsenic0.0000.000 Chromium0.0000.000 Lead0.0000.000 Nickel0.0000.000 Iron0.0000.000 Molybdenum0.0000.000 Ammonia (as N)0.0000.000

(e) Pure Grade Molybdenum.

PSNS for the Secondary Molybdenum And Vanadium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of pure molybdenum produced Arsenic32.35914.434 Chromium8.6143.492 Lead6.5183.026 Nickel12.8048.614 Iron27.93614.201 Molybdenum[Reserved][Reserved] Ammonia (as N)9638.0004237.000
[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31704, 31705 Aug. 3, 1990]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.226

§ 421.227 - [Reserved]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4.

SOURCE: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.

CITE AS: 40 CFR 421.227