40 CFR § 421.154 - Standards of performance for new sources.

---
identifier: "/us/cfr/t40/s421.154"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 421.154 - Standards of performance for new sources."
title_number: 40
title_name: "Protection of Environment"
section_number: "421.154"
section_name: "Standards of performance for new sources."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "421"
part_name: "NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
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."
regulatory_source: "49 FR 8790, Mar. 8, 1984, unless otherwise noted."
cfr_part: "421"
---


# 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| 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 | () | () |
| Within the range of 7.5 to 10.0 at all times. |  |  |

[50 FR 38346, Sept. 20, 1985, as amended at 55 FR 31699, Aug. 3, 1990]