Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
All TitlesTitle 40Chapter IPart 471Subpart G - Subpart G—Uranium Forming Subcategory
View all text of Subpart G [§ 471.70 - § 471.76]
§ 471.71 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best praticable control technology currently available (BPT):

(a) Extrusion spent lubricants—subpart G—BPT. There shall be no discharge process wastewater pollutants.

(b) Extrusion tool contact cooling water.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium extruded
Cadium0.1170.052
Chromium0.1520.062
Copper0.6540.344
Lead0.1450.069
Nickel0.6610.437
Fluoride20.59.08
Molybdenum2.281.18
Oil and grease6.884.13
TSS14.16.71
pH( 1)( 1)

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

(c) Heat treatment contact cooling water.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated
Cadium0.6460.285
Chromium0.8360.342
Copper3.611.90
Lead0.7980.380
Nickel3.652.42
Fluoride11350.2
Molybdenum12.66.5
Oil and grease3822.8
TSS77.937.1
pH( 1)( 1)

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

(d) Forging spent lubricants—subpart G—BPT. There shall be no discharge of process wastewater pollutants.

(e) Surface treatment spent baths.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium surface treated
Cadmium0.0100.004
Chromium0.0120.005
Copper0.0520.027
Lead0.0120.006
Nickel0.0520.035
Fluoride1.620.718
Molybdenum0.1800.093
Oil and grease0.5440.327
TSS1.120.531
pH( 1)( 1)

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

(f) Surface treatment rinse.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium surface treated
Cadmium0.1150.050
Chromium0.1490.061
Copper0.6410.337
Lead0.1420.068
Nickel0.6470.428
Fluoride20.18.90
Molybdenum2.231.16
Oil and grease6.744.05
TSS13.86.57
pH( 1)( 1)

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

(g) Wet air pollution control scrubber blowdown.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium surface treated
Cadmium0.000.0006
Chromium0.0020.0007
Copper0.0070.004
Lead0.0020.0007
Nickel0.0070.005
Fluoride0.2080.092
Molybdenum0.0230.012
Oil and grease0.0700.042
TSS0.1430.068
pH( 1)( 1)

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

(h) Sawing or grinding spent emulsions.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions
Cadmium0.0020.0009
Chromium0.0030.001
Copper0.0110.006
Lead0.0030.001
Nickel0.0110.007
Fluoride0.3380.150
Molybdenum0.0380.020
Oil and grease0.1140.068
TSS0.2330.111
pH( 1)( 1)

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

(i) Sawing or grinding contact cooling water.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling ater
Cadmium0.5610.248
Chromium0.7260.297
Copper3.141.65
Lead0.6930.330
Nickel3.172.1
Fluoride98.243.6
Molybdenum10.95.65
Oil and grease33.019.8
TSS67.732.2
pH( 1)( 1)

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

(j) Sawing or grinding rinse.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinses
Cadmium0.0020.0007
Chromium0.0020.0009
Copper0.0090.005
Lead0.0020.001
Nickel0.0090.006
Fluoride0.2770.123
Molybdenum0.0310.016
Oil and grease0.0930.056
TSS0.1910.091
pH( 1)( 1)

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

(k) Area cleaning rinse.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium formed
Cadmium0.0150.007
Chromium0.0190.008
Copper0.0820.043
Lead0.0180.009
Nickel0.0830.055
Fluoride2.561.14
Molybdenum0.2840.147
Oil and grease0.8580.515
TSS1.760.837
pH( 1)( 1)

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

(l) Drum washwater.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of uranium formed
Cadmium0.0150.007
Chromium0.0200.008
Copper0.0840.045
Lead0.0190.009
Nickel0.0850.057
Fluoride2.641.17
Molybdenum0.2930.152
Oil and grease0.8860.532
TSS1.820.864
pH( 1)( 1)

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

(m) Laundry washwater.

Subpart G—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/employee—day
Cadmium17.87.86
Chromium23.19.43
Copper99.652.4
Lead22.010.5
Nickel10166.6
Fluoride3,1201,390
Molybdenum347179
Oil and grease1,050629
TSS2,1501,020
pH( 1)( 1)

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

(n) Degreasing spent solvents—subpart G—BPT. There shall be no discharge of process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]
authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307, 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) (the “Act”); 33 U.S.C. 1311,1314,c,e,and, 1316(b) andc,and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 50 FR 34270, Aug. 23, 1985, unless otherwise noted.
cite as: 40 CFR 471.71
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