Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 421.154: Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Solvent extraction raffinate from bertrandite ore.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds million pounds) of beryllium carbonate produced from bertrandite ore as beryllium
Beryllium 1,842.000 831.000
Chromium (total) 831.000 336.900
Copper 2,875.000 1,370.000
Cyanide (total) 449.200 179.700
Ammonia (as N) 299,400.000 131,600.000
Fluoride 78,610.000 44,700.000
Total Suspended solids 33,690.000 26,950.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(b) Solvent extraction raffinate from beryl ore.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium carbonate produced from beryl ore as beryllium
Beryllium 180.4 81.4
Chromium (total) 81.4 33.0
Copper 281.6 134.2
Cyanide (total) 44.0 17.6
Ammonia (as N) 29,330.0 12,890.0
Fluoride 7,700.0 4,378.0
Total Suspended solids 3,300.0 2,640.0
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(c) Beryllium carbonate filtrate.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium carbonate produced as beryllium
Beryllium 175.900 79.370
Chromium (total) 79.370 32.180
Copper 274.600 130.800
Cyanide (total) 42.900 17.160
Ammonia (as N) 28,590.000 12,579.000
Fluoride 7,508.000 4,269.000
Total Suspended solids 3,218.000 2,574.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(d) Beryllium hydroxide filtrate.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium hydroxide produced as beryllium
Beryllium 111.520 50.320
Chromium (Total) 50.320 20.400
Copper 174.080 82.960
Cyanide (Total) 27.200 10.880
Ammonia (as N) 18128.800 7969.600
Fluoride 4760.000 2706.400
Total Suspended Solids 2040.000 1632.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(e) Beryllium oxide calcining furnace wet air pollution control.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium oxide produced
Beryllium 216.20 97.57
Chromium (total) 95.57 39.56
Copper 337.50 160.90
Cyanide (total) 52.74 21.10
Ammonia (as N) 35,150.00 15,450.00
Fluoride 9,230.00 5,248.00
Total suspended solids 3,956.00 3,164.00
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(f) Beryllium hydroxide supernatant.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium hydroxide produced from scrap and residues as beryllium
Beryllium 188.6 85.1
Chromium (total) 85.1 34.5
Copper 294.4 140.3
Cyanide (total) 46.0 18.4
Ammonia (as N) 30,660.0 13,480.0
Fluoride 160,308.0 71,201.0
Total Suspended solids 3,450.0 2,760.0
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(g) Process water.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium pebbles produced
Beryllium 143.30 64.68
Chromium (total) 64.68 26.22
Copper 223.70 106.60
Cyanide (total) 34.96 13.98
Ammonia (as N) 23,300.00 10,240.00
Fluoride 6,118.00 3,479.00
Total suspended solids 2,622.00 2,098.00
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(h) Fluoride furnace scrubber.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium pebbles produced
Beryllium 0.000 0.000
Chromium (total) 0.000 0.000
Copper 0.000 0.000
Cyanide (total) 0.000 0.000
Ammonia (as N) 0.000 0.000
Fluoride 0.000 0.000
Total suspended solids 0.000 0.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(i) Chip treatment wastewater.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium scrap chips treated
Beryllium 6.355 2.868
Chromium (total) 2.868 1.163
Copper 9.920 4.728
Cyanide (total) 1.550 0.620
Ammonia (as N) 1,033.000 454.200
Fluoride 271.300 154.200
Total suspended solids 116.300 93.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(j) Beryllium pebble plant area vent wet air pollution control.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryllium pebbles produced
Beryllium 0.000 0.000
Chromium (total) 0.000 0.000
Copper 0.000 0.000
Cyanide (total) 0.000 0.000
Ammonia (as N) 0.000 0.000
Fluoride 0.000 0.000
Total suspended solids 0.000 0.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(k) Beryl Ore Gangue Dewatering.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryl ore processed
Beryllium 0.855 0.386
Chromium (Total) 0.386 0.156
Copper 1.335 0.636
Cyanide (Total) 0.209 0.083
Ammonia (as N) 139.032 61.120
Fluoride 36.505 20.756
Total Suspended Solids 15.645 12.516
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(l) Bertrandite Ore Gangue Dewatering.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of bertrandite ore processed
Beryllium 2.185 0.986
Chromium (Total) 0.986 0.400
Copper 3.411 1.626
Cyanide (Total) 0.533 0.213
Ammonia (as N) 355.245 156.169
Fluoride 93.275 53.034
Total Suspended Solids 39.975 31.980
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(m) Beryl Ore Processing.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of beryl ore processed
Beryllium 5.988 2.702
Chromium (Total) 2.702 1.095
Copper 9.348 4.455
Cyanide (Total) 1.461 0.584
Ammonia (as N) 973.490 427.956
Fluoride 255.605 145.330
Total Suspended Solids 109.545 87.636
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(n) Aluminum Iron Sludge (AIS) Area Wastewater.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of total beryllium carbonate produced as beryllium
Beryllium 383.760 173.160
Chromium (Total) 173.160 70.200
Copper 599.040 285.480
Cyanide (Total) 93.600 37.440
Ammonia (as N) 62384.400 27424.800
Fluoride 16380.000 9313.200
Total Suspended Solids 7020.000 5616.000
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(o) Bertrandite Ore Leaching Scrubber.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg of bertrandite ore processed
Beryllium 1.239 0.559
Chromium (Total) 0.559 0.227
Copper 1.934 0.922
Cyanide (Total) 0.302 0.121
Ammonia (as N) 201.416 88.545
Fluoride 52.885 30.069
Total Suspended Solids 22.665 18.132
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.
(p) Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.
NSPS for the Primary Beryllium Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg of bertrandite ore processed
Beryllium 0.083 0.037
Chromium (Total) 0.037 0.015
Copper 0.129 0.062
Cyanide (Total) 0.020 0.008
Ammonia (as N) 13.463 5.919
Fluoride 3.535 2.010
Total Suspended Solids 1.515 1.212
pH (1) (1)
1 Within the range of 7.5 to 10.0 at all times.

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
Subpart O—Primary Beryllium Subcategory

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

(a) Solvent extraction raffinate from bertrandite ore.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds million pounds) of beryllium carbonate produced from bertrandite ore as beryllium

Beryllium 1,842.000 831.000

Chromium (total) 831.000 336.900

Copper 2,875.000 1,370.000

Cyanide (total) 449.200 179.700

Ammonia (as N) 299,400.000 131,600.000

Fluoride 78,610.000 44,700.000

Total Suspended solids 33,690.000 26,950.000

pH (1) (1)

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

(b) Solvent extraction raffinate from beryl ore.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium carbonate produced from beryl ore as beryllium

Beryllium 180.4 81.4

Chromium (total) 81.4 33.0

Copper 281.6 134.2

Cyanide (total) 44.0 17.6

Ammonia (as N) 29,330.0 12,890.0

Fluoride 7,700.0 4,378.0

Total Suspended solids 3,300.0 2,640.0

pH (1) (1)

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

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium carbonate produced as beryllium

Beryllium 175.900 79.370

Chromium (total) 79.370 32.180

Copper 274.600 130.800

Cyanide (total) 42.900 17.160

Ammonia (as N) 28,590.000 12,579.000

Fluoride 7,508.000 4,269.000

Total Suspended solids 3,218.000 2,574.000

pH (1) (1)

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

(d) Beryllium hydroxide filtrate.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium hydroxide produced as beryllium

Beryllium 111.520 50.320

Chromium (Total) 50.320 20.400

Copper 174.080 82.960

Cyanide (Total) 27.200 10.880

Ammonia (as N) 18128.800 7969.600

Fluoride 4760.000 2706.400

Total Suspended Solids 2040.000 1632.000

pH (1) (1)

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

(e) Beryllium oxide calcining furnace wet air pollution control.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium oxide produced

Beryllium 216.20 97.57

Chromium (total) 95.57 39.56

Copper 337.50 160.90

Cyanide (total) 52.74 21.10

Ammonia (as N) 35,150.00 15,450.00

Fluoride 9,230.00 5,248.00

Total suspended solids 3,956.00 3,164.00

pH (1) (1)

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

(f) Beryllium hydroxide supernatant.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium hydroxide produced from scrap and residues as beryllium

Beryllium 188.6 85.1

Chromium (total) 85.1 34.5

Copper 294.4 140.3

Cyanide (total) 46.0 18.4

Ammonia (as N) 30,660.0 13,480.0

Fluoride 160,308.0 71,201.0

Total Suspended solids 3,450.0 2,760.0

pH (1) (1)

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

(g) Process water.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium pebbles produced

Beryllium 143.30 64.68

Chromium (total) 64.68 26.22

Copper 223.70 106.60

Cyanide (total) 34.96 13.98

Ammonia (as N) 23,300.00 10,240.00

Fluoride 6,118.00 3,479.00

Total suspended solids 2,622.00 2,098.00

pH (1) (1)

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

(h) Fluoride furnace scrubber.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium pebbles produced

Beryllium 0.000 0.000

Chromium (total) 0.000 0.000

Copper 0.000 0.000

Cyanide (total) 0.000 0.000

Ammonia (as N) 0.000 0.000

Fluoride 0.000 0.000

Total suspended solids 0.000 0.000

pH (1) (1)

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

(i) Chip treatment wastewater.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium scrap chips treated

Beryllium 6.355 2.868

Chromium (total) 2.868 1.163

Copper 9.920 4.728

Cyanide (total) 1.550 0.620

Ammonia (as N) 1,033.000 454.200

Fluoride 271.300 154.200

Total suspended solids 116.300 93.000

pH (1) (1)

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

(j) Beryllium pebble plant area vent wet air pollution control.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryllium pebbles produced

Beryllium 0.000 0.000

Chromium (total) 0.000 0.000

Copper 0.000 0.000

Cyanide (total) 0.000 0.000

Ammonia (as N) 0.000 0.000

Fluoride 0.000 0.000

Total suspended solids 0.000 0.000

pH (1) (1)

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

(k) Beryl Ore Gangue Dewatering.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryl ore processed

Beryllium 0.855 0.386

Chromium (Total) 0.386 0.156

Copper 1.335 0.636

Cyanide (Total) 0.209 0.083

Ammonia (as N) 139.032 61.120

Fluoride 36.505 20.756

Total Suspended Solids 15.645 12.516

pH (1) (1)

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

(l) Bertrandite Ore Gangue Dewatering.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of bertrandite ore processed

Beryllium 2.185 0.986

Chromium (Total) 0.986 0.400

Copper 3.411 1.626

Cyanide (Total) 0.533 0.213

Ammonia (as N) 355.245 156.169

Fluoride 93.275 53.034

Total Suspended Solids 39.975 31.980

pH (1) (1)

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

(m) Beryl Ore Processing.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of beryl ore processed

Beryllium 5.988 2.702

Chromium (Total) 2.702 1.095

Copper 9.348 4.455

Cyanide (Total) 1.461 0.584

Ammonia (as N) 973.490 427.956

Fluoride 255.605 145.330

Total Suspended Solids 109.545 87.636

pH (1) (1)

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

(n) Aluminum Iron Sludge (AIS) Area Wastewater.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg (pounds per million pounds) of total beryllium carbonate produced as beryllium

Beryllium 383.760 173.160

Chromium (Total) 173.160 70.200

Copper 599.040 285.480

Cyanide (Total) 93.600 37.440

Ammonia (as N) 62384.400 27424.800

Fluoride 16380.000 9313.200

Total Suspended Solids 7020.000 5616.000

pH (1) (1)

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

(o) Bertrandite Ore Leaching Scrubber.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg of bertrandite ore processed

Beryllium 1.239 0.559

Chromium (Total) 0.559 0.227

Copper 1.934 0.922

Cyanide (Total) 0.302 0.121

Ammonia (as N) 201.416 88.545

Fluoride 52.885 30.069

Total Suspended Solids 22.665 18.132

pH (1) (1)

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

(p) Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.

NSPS for the Primary Beryllium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/kg of bertrandite ore processed

Beryllium 0.083 0.037

Chromium (Total) 0.037 0.015

Copper 0.129 0.062

Cyanide (Total) 0.020 0.008

Ammonia (as N) 13.463 5.919

Fluoride 3.535 2.010

Total Suspended Solids 1.515 1.212

pH (1) (1)

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

Collected 2026-08-27T02:26:04Z. Source file · JSON

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