Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
All TitlesTitle 40Chapter IPart 471Subpart F - Subpart F—Titanium Forming Subcategory
View all text of Subpart F [§ 471.60 - § 471.66]
§ 471.61 - 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 practicable control technology currently available (BPT):

(a) Rolling spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling contact cooling water.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water
Cyanide1.40.586
Lead2.050.976
Zinc7.132.98
Ammonia651286
Fluoride291129
Oil and grease97.058.0
TSS200.095.0
pH( 1)( 1)

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

(c) Drawing spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion spent emulsions.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium extruded
Cyanide0.0210.009
Lead0.0300.015
Zinc0.1050.044
Ammonia9.594.22
Fluoride4.281.9
Oil and grease1.440.863
TSS2.951.4
pH( 1)( 1)

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

(f) Extrusion press hydraulic fluid leakage.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium extruded
Cyanide0.0520.022
Lead0.0750.036
Zinc0.2600.109
Ammonia23.710.5
Fluoride10.64.70
Oil and grease3.562.14
TSS7.303.47
pH( 1)( 1)

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

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

(h) Forging contact cooling water.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of forged titanium cooled with water
Cyanide0.5800.240
Lead0.8400.400
Zinc2.921.22
Ammonia267117
Fluoride11952.8
Oil and grease40.024.0
TSS82.039.0
pH( 1)( 1)

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

(i) Forging equipment cleaning wastewater.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals forged
Cyanide0.0120.005
Lead0.0170.008
Zinc0.0590.025
Ammonia5.332.35
Fluoride2.381.06
Oil and grease0.8000.480
TSS1.640.780
pH( 1)( 1)

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

(j) Forging press hydraulic fluid leakage.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals forged
Cyanide0.2930.121
Lead0.4240.202
Zinc1.480.616
Ammonia13559.2
Fluoride60.126.7
Oil and grease20.212.1
TSS41.419.7
pH( 1)( 1)

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

(k) Tube reducing spent lubricants—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(l) Heat treatment contact cooling water—subpart F—BPT. There shall be no allowance for the discharge of process wastewater pollutants.

(m) Surface treatment spent baths.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium surface treated
Cyanide0.0610.025
Lead0.0880.042
Zinc0.3040.127
Ammonia27.712.2
Fluoride12.45.49
Oil and grease4.162.50
TSS8.534.06
pH( 1)( 1)

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

(n) Surface treatment rinse.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium surface treated
Cyanide8.473.51
Lead12.35.84
Zinc42.717.8
Ammonia3,8901,710
Fluoride1,740771
Oil and grease584351
TSS1,200570
pH( 1)( 1)

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

(o) Wet air pollution control scrubber blowdown.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium surface treated or forged
Cyanide0.6210.257
Lead0.8990.428
Zinc3.131.31
Ammonia285126
Fluoride12856.5
Oil and grease42.825.7
TSS87.841.8
pH( 1)( 1)

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

(p) Alkaline cleaning spent baths.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned
Cyanide0.0700.029
Lead0.1010.048
Zinc0.3510.147
Ammonia32.014.1
Fluoride14.36.34
Oil and grease4.802.88
TSS9.844.68
pH( 1)( 1)

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

(q) Alkaline cleaning rinse.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium alkaline cleaned
Cyanide0.8010.331
Lead1.160.552
Zinc4.031.69
Ammonia370160
Fluoride16472.9
Oil and grease55.233.1
TSS11353.8
pH( 1)( 1)

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

(r) Molten salt rinse.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium treated with molten salt
Cyanide0.2770.115
Lead0.4010.191
Zinc1.400.583
Ammonia12856.0
Fluoride56.825.2
Oil and grease19.111.5
TSS39.218.6
pH( 1)( 1)

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

(s) Tumbling wastewater.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium tumbled
Cyanide0.2290.095
Lead0.3320.158
Zinc1.160.482
Ammonia11046
Fluoride47.020.9
Oil and grease15.89.48
TSS32.415.4
pH( 1)( 1)

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

(t) Sawing or grinding spent neat oils—subpart F—BPT. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding of spent emulsions.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with an emulsion
Cyanide0.0530.022
Lead0.0770.037
Zinc0.2670.112
Ammonia24.410.7
Fluoride10.94.83
Oil and grease3.662.20
TSS7.513.57
pH( 1)( 1)

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

(v) Sawing or grinding contact cooling water.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium sawed or ground with contact cooling water
Cyanide1.380.571
Lead2.000.952
Zinc6.952.91
Ammonia635279
Fluoride283126
Oil and grease95.257.1
TSS19592.8
pH( 1)( 1)

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

(w) Dye penetrant testing wastewater.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium tested with dye penetrant methods
Cyanide0.3250.135
Lead0.4710.224
Zinc1.640.683
Ammonia14965.7
Fluoride66.729.6
Oil and grease22.413.5
TSS45.921.9
pH( 1)( 1)

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

(x) Miscellaneous wastewater sources.

Subpart F—BPT

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of titanium formed
Cyanide0.0100.004
Lead0.0140.007
Zinc0.0480.020
Ammonia4.321.90
Fluoride1.930.856
Oil and grease0.6480.389
TSS1.330.632
pH( 1)( 1)

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

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

[50 FR 34270, Aug. 23, 1985; 51 FR 2887, 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 471.61
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