GroundRules
← Search the law
Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 421.184: Standards of performance for new sources.

Read at publisher ↗
Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
  4. PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
  5. Subpart P—Primary and Secondary Germanium and Gallium Subcategory

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

(a) Still liquor.

NSPS for the Primary and Secondary Germanium and Gallium Subcategory

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

mg/kg (pounds per million pounds) of germanium chlorinated

Arsenic 131.70 58.59

Lead 26.46 12.60

Zinc 91.98 38.43

Fluoride 2,205.00 1,254.00

Total suspended solids 2,583.00 1,229.00

pH (1) (1)

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

(b) Chlorinator wet air pollution control.

NSPS for the Primary and Secondary Germanium and Gallium Subcategory

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

mg/kg (pounds per million pounds) of germanium chlorinated

Arsenic 27.530 12.250

Lead 5.531 2.634

Zinc 19.230 8.034

Fluoride 461.000 262.100

Total suspended solids 540.000 256.800

pH (1) (1)

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

(c) Germanium hydrolysis filtrate.

NSPS for the Primary and Secondary Germanium and Gallium Subcategory

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

mg/kg pounds per million pounds) of germanium hydrolyzed

Arsenic 39.440 17.550

Lead 7.925 3.774

Zinc 27.550 11.510

Fluoride 660.500 375.500

Total suspended solids 773.700 368.000

pH (1) (1)

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

(d) Acid wash and rinse water.

NSPS for the Primary and Secondary Germanium and Gallium Subcategory

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

mg/kg (pounds per million pounds) of germanium washed

Arsenic 325.50 144.80

Lead 65.40 31.14

Zinc 227.40 94.99

Fluoride 5,450.00 3,099.00

Total suspended solids 6,385.00 3,037.00

pH (1) (1)

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

(e) Gallium hydrolysis filtrate.

NSPS for the Primary and Secondary Germanium and Gallium Subcategory

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

mg/kg (pounds per million pounds) of gallium hydrolyzed

Arsenic 70.450 31.350

Lead 14.160 6.742

Zinc 49.220 20.560

Fluoride 1,180.000 670.800

Total suspended solids 1,382.000 657.300

pH (1) (1)

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

(f) Solvent extraction raffinate.

NSPS for the Primary and Secondary Germanium and Gallium Subcategory

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

mg/kg (pounds per million pounds) of gallium produced by solvent extraction

Arsenic 39.330 17.500

Lead 7.904 3.764

Zinc 27.480 11.480

Fluoride 658.700 374.500

Total suspended solids 771.600 367.000

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

Browse this collection