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Electronic Code of Federal Regulations

e-CFR Data is current as of August 28, 2014

Title 40Chapter ISubchapter NPart 421Subpart AB → §421.303


Title 40: Protection of Environment
PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
Subpart AB—Primary and Secondary Titanium Subcategory


§421.303   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

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 available technology economically achievable:

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

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of TiCl4 produced
Chromium (total)0.3460.140
Lead0.2620.122
Nickel0.5150.346
Titanium0.4960.215

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

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of TiCl4 produced
Chromium (total)0.3850.156
Lead0.2910.135
Nickel0.5720.385
Titanium0.5510.239

(c) TiCl4 handling wet air pollution control.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of TiCl4 handled
Chromium (total)0.0690.028
Lead0.0520.024
Nickel0.1030.069
Titanium0.0990.043

(d) Reduction area wet air pollution control.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)1.5280.620
Lead1.1560.537
Nickel2.2721.528
Titanium2.1890.950

(e) Melt cell wet air pollution control.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)0.7870.319
Lead0.5950.276
Nickel1.1690.787
Titanium1.1270.489

(f) Chlorine liquefaction wet air pollution control.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)11.0104.463
Lead8.3323.868
Nickel16.37011.010
Titanium15.7706.844

(g) Sodium reduction container reconditioning wash water.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)0.4740.192
Lead0.3590.167
Nickel0.7050.474
Titanium0.6790.295

(h) Chip crushing wet air pollution control.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)0.8480.344
Lead0.6420.298
Nickel1.2610.848
Titanium1.2150.527

(i) Acid leachate and rinse water.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)4.3811.776
Lead3.3151.539
Nickel6.5124.381
Titanium6.2752.723

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

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium produced
Chromium (total)0.2390.097
Lead0.1810.084
Nickel0.3560.239
Titanium0.3430.149

(k) Acid pickle and wash water.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium pickled
Chromium (total)0.0230.009
Lead0.0170.008
Nickel0.0340.023
Titanium0.0320.014

(l) Scrap milling wet air pollution control.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of scrap milled
Chromium (total)0.0840.034
Lead0.0640.030
Nickel0.1250.084
Titanium0.1200.052

(m) Scrap detergent wash water.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of scrap washed
Chromium (total)6.6842.710
Lead5.0582.348
Nickel9.9356.684
Titanium9.5744.155

(n) Casting crucible wash water.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium cast
Chromium (total)0.1760.072
Lead0.1340.062
Nickel0.2620.176
Titanium0.2530.110

(o) Casting contact cooling water.

BAT Limitations for the Primary and Secondary Titanium Subcategory

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
mg/kg (pounds per million pounds) of titanium cast
Chromium (total)27.00010.950
Lead20.4309.486
Nickel40.14027.000
Titanium38.6816.78


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