40 CFR 421.302: Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:

(a) Chlorination off-gas wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of TiCl4 produced

Chromium (total) 0.412 0.168

Lead 0.393 0.187

Nickel 1.797 1.189

Titanium 0.880 0.384

Oil and grease 18.720 11.230

Total suspended solids 38.380 18.250

pH (1) (1)

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

(b) Chlorination area-vent wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of TiCl4 produced

Chromium (total) 0.412 0.168

Chromium (total) 0.458 0.187

Lead 0.437 0.208

Nickel 1.997 1.321

Titanium 0.978 0.426

Oil and grease 20.800 12.480

Total suspended solids 42.640 20.280

pH (1) (1)

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

(c) TiCl4 handling wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of TiCl4 handled

Chromium (total) 0.082 0.034

Lead 0.079 0.037

Nickel 0.359 0.237

Titanium 0.176 0.077

Oil and grease 3.740 2.244

Total suspended solids 7.667 3.647

pH (1) (1)

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

(d) Reduction area wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 18.170 7.435

Lead 17.350 8.261

Nickel 79.300 52.450

Titanium 38.820 16.930

Oil and grease 826.100 495.600

Total suspended solids 1,693.000 805.400

pH (1) (1)

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

(e) Melt cell wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 9.352 3.826

Lead 8.927 4.251

Nickel 40.810 26.990

Titanium 19.980 8.714

Oil and grease 425.100 255.000

Total suspended solids 871.400 414.500

pH (1) (1)

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

(f) Chlorine liquefaction wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 130.900 53.560

Lead 125.000 59.510

Nickel 571.300 377.900

Titanium 279.700 122.000

Oil and grease 5,951.000 3,571.000

Total suspended solids 12,200.000 5,702.000

pH (1) (1)

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

(g) Sodium reduction container reconditioning wash water.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 0.564 0.231

Lead 0.538 0.256

Nickel 2.461 1.628

Titanium 1.205 0.526

Oil and grease 25.640 15.380

Total suspended solids 52.560 25.000

pH (1) (1)

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

(h) Chip crushing wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 10.090 4.126

Lead 9.627 4.584

Nickel 44.010 29.110

Titanium 21.550 9.398

Oil and grease 458.400 275.100

Total suspended solids 939.800 447.000

pH (1) (1)

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

(i) Acid leachate and rinse water.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 5.210 2.131

Lead 4.973 2.368

Nickel 22.730 15.040

Titanium 11.130 4.854

Oil and grease 236.800 142.100

Total suspended solids 485.400 230.900

pH (1) (1)

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

(j) Sponge crushing and screening wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium produced

Chromium (total) 2.847 1.165

Lead 2.717 1.294

Nickel 12.420 8.217

Titanium 6.082 2.653

Oil and grease 129.400 77.640

Total suspended solids 265.300 126.200

pH (1) (1)

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

(k) Acid pickle and wash water.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium pickled

Chromium (total) 0.027 0.011

Lead 0.026 0.012

Nickel 0.117 0.077

Titanium 0.057 0.025

Oil and grease 1.220 0.732

Total suspended solids 2.501 1.190

pH (1) (1)

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

(l) Scrap milling wet air pollution control.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of scrap milled

Chromium (total) 0.995 0.407

Lead 0.950 0.452

Nickel 4.341 2.871

Titanium 2.125 0.927

Oil and grease 45.220 27.130

Total suspended solids 92.700 44.090

pH (1) (1)

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

(m) Scrap detergent wash water.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

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

Chromium (total) 7.948 3.252

Lead 7.587 3.613

Nickel 34.680 22.940

Titanium 16.980 7.406

Oil and grease 361.300 216.800

Total suspended solids 740.600 352.300

pH (1) (1)

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

(n) Casting crucible wash water.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium cast

Chromium (total) 0.210 0.086

Lead 0.200 0.095

Nickel 0.916 0.606

Titanium 0.448 0.196

Oil and grease 9.540 5.724

Total suspended solids 19.560 9.302

pH (1) (1)

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

(o) Casting contact cooling water.

BPT Limitations for the Primary and Secondary Titanium Subcategory

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

mg/kg (pounds per million pounds) of titanium cast

Chromium (total) 321.100 131.400

Lead 306.500 145.900

Nickel 1,401.000 926.800

Titanium 685.900 299.200

Oil and grease 14,590.000 8,757.000

Total suspended solids 29,920.000 14,230.000

pH (1) (1)

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