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 Code of Federal Regulations (Last Updated: July 5, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter N - Effluent Guidelines and Standards
 Part 471 - Nonferrous Metals Forming and Metal Powders Point Source Category
 Subpart F - Titanium Forming Subcategory

  § 471.61 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).  

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  • § 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
    Cyanide 1.4 0.586
    Lead 2.05 0.976
    Zinc 7.13 2.98
    Ammonia 651 286
    Fluoride 291 129
    Oil and grease 97.0 58.0
    TSS 200.0 95.0
    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
    Cyanide 0.021 0.009
    Lead 0.030 0.015
    Zinc 0.105 0.044
    Ammonia 9.59 4.22
    Fluoride 4.28 1.9
    Oil and grease 1.44 0.863
    TSS 2.95 1.4
    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
    Cyanide 0.052 0.022
    Lead 0.075 0.036
    Zinc 0.260 0.109
    Ammonia 23.7 10.5
    Fluoride 10.6 4.70
    Oil and grease 3.56 2.14
    TSS 7.30 3.47
    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
    Cyanide 0.580 0.240
    Lead 0.840 0.400
    Zinc 2.92 1.22
    Ammonia 267 117
    Fluoride 119 52.8
    Oil and grease 40.0 24.0
    TSS 82.0 39.0
    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
    Cyanide 0.012 0.005
    Lead 0.017 0.008
    Zinc 0.059 0.025
    Ammonia 5.33 2.35
    Fluoride 2.38 1.06
    Oil and grease 0.800 0.480
    TSS 1.64 0.780
    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
    Cyanide 0.293 0.121
    Lead 0.424 0.202
    Zinc 1.48 0.616
    Ammonia 135 59.2
    Fluoride 60.1 26.7
    Oil and grease 20.2 12.1
    TSS 41.4 19.7
    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
    Cyanide 0.061 0.025
    Lead 0.088 0.042
    Zinc 0.304 0.127
    Ammonia 27.7 12.2
    Fluoride 12.4 5.49
    Oil and grease 4.16 2.50
    TSS 8.53 4.06
    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
    Cyanide 8.47 3.51
    Lead 12.3 5.84
    Zinc 42.7 17.8
    Ammonia 3,890 1,710
    Fluoride 1,740 771
    Oil and grease 584 351
    TSS 1,200 570
    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
    Cyanide 0.621 0.257
    Lead 0.899 0.428
    Zinc 3.13 1.31
    Ammonia 285 126
    Fluoride 128 56.5
    Oil and grease 42.8 25.7
    TSS 87.8 41.8
    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
    Cyanide 0.070 0.029
    Lead 0.101 0.048
    Zinc 0.351 0.147
    Ammonia 32.0 14.1
    Fluoride 14.3 6.34
    Oil and grease 4.80 2.88
    TSS 9.84 4.68
    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
    Cyanide 0.801 0.331
    Lead 1.16 0.552
    Zinc 4.03 1.69
    Ammonia 370 160
    Fluoride 164 72.9
    Oil and grease 55.2 33.1
    TSS 113 53.8
    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
    Cyanide 0.277 0.115
    Lead 0.401 0.191
    Zinc 1.40 0.583
    Ammonia 128 56.0
    Fluoride 56.8 25.2
    Oil and grease 19.1 11.5
    TSS 39.2 18.6
    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
    Cyanide 0.229 0.095
    Lead 0.332 0.158
    Zinc 1.16 0.482
    Ammonia 110 46
    Fluoride 47.0 20.9
    Oil and grease 15.8 9.48
    TSS 32.4 15.4
    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
    Cyanide 0.053 0.022
    Lead 0.077 0.037
    Zinc 0.267 0.112
    Ammonia 24.4 10.7
    Fluoride 10.9 4.83
    Oil and grease 3.66 2.20
    TSS 7.51 3.57
    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
    Cyanide 1.38 0.571
    Lead 2.00 0.952
    Zinc 6.95 2.91
    Ammonia 635 279
    Fluoride 283 126
    Oil and grease 95.2 57.1
    TSS 195 92.8
    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
    Cyanide 0.325 0.135
    Lead 0.471 0.224
    Zinc 1.64 0.683
    Ammonia 149 65.7
    Fluoride 66.7 29.6
    Oil and grease 22.4 13.5
    TSS 45.9 21.9
    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
    Cyanide 0.010 0.004
    Lead 0.014 0.007
    Zinc 0.048 0.020
    Ammonia 4.32 1.90
    Fluoride 1.93 0.856
    Oil and grease 0.648 0.389
    TSS 1.33 0.632
    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]