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

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Effluent Guidelines and Standards
  6. Nonferrous Metals Forming and Metal Powders Point Source Category
  7. Titanium Forming Subcategory
  8. 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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

Expand Table

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.

Expand Table

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.

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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]


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