CFR / Title 40 / Part 421 / Sec. 421.306 Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in primary and secondary titanium process wastewater introduced into a POTW shall not exceed the following values:

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

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of TiCl4

produced

--------------Chromium (total).............................. 0.346 0.140Lead.......................................... 0.262 0.122Nickel........................................ 0.515 0.346Titanium...................................... 0.496 0.215------------------------------------------------------------------------

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

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of TiCl4

produced

--------------Chromium (total).............................. 0.385 0.156Lead.......................................... 0.291 0.135Nickel........................................ 0.572 0.385Titanium...................................... 0.551 0.239------------------------------------------------------------------------

(c) TiCl4 handling wet air pollution control.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of TiCl4

handled

--------------Chromium (total).............................. 0.069 0.028Lead.......................................... 0.052 0.024Nickel........................................ 0.103 0.069Titanium...................................... 0.099 0.043------------------------------------------------------------------------

(d) Reduction area wet air pollution control.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

--------------Chromium (total).............................. 1.528 0.620Lead.......................................... 1.156 0.537Nickel........................................ 2.272 1.528Titanium...................................... 2.189 0.950------------------------------------------------------------------------

(e) Melt cell wet air pollution control.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

--------------Chromium (total).............................. 0.787 0.319Lead.......................................... 0.595 0.276Nickel........................................ 1.169 0.787Titanium...................................... 1.127 0.489------------------------------------------------------------------------

(f) Chlorine liquefaction wet air pollution control.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

--------------Chromium (total).............................. 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Titanium...................................... 0.000 0.000------------------------------------------------------------------------

(g) Sodium reduction container reconditioning wash water.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

--------------Chromium (total).............................. 0.474 0.192Lead.......................................... 0.359 0.167Nickel........................................ 0.705 0.474Titanium...................................... 0.679 0.295------------------------------------------------------------------------

(h) Chip crushing wet air pollution control.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

(i) Acid leachate and rinse water.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

--------------Chromium (total).............................. 4.381 1.776Lead.......................................... 3.315 1.539Nickel........................................ 6.512 4.381Titanium...................................... 6.275 2.723------------------------------------------------------------------------

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

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium produced

(k) Acid pickle and wash water.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium pickled

--------------Chromium (total).............................. 0.023 0.009Lead.......................................... 0.017 0.008Nickel........................................ 0.034 0.023Titanium...................................... 0.032 0.014------------------------------------------------------------------------

(l) Scrap milling wet air pollution control.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of scrap

milled

(m) Scrap detergent wash water.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of scrap

washed

--------------Chromium (total).............................. 6.684 2.710Lead.......................................... 5.058 2.348Nickel........................................ 9.935 6.684Titanium...................................... 9.574 4.155------------------------------------------------------------------------

(n) Casting crucible wash water.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium cast

--------------Chromium (total).............................. 0.176 0.072Lead.......................................... 0.134 0.062Nickel........................................ 0.262 0.176Titanium...................................... 0.253 0.110------------------------------------------------------------------------

(o) Casting contact cooling water.

PSNS for the Primary and Secondary Titanium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

titanium cast

--------------Chromium (total).............................. 27.000 10.950Lead.......................................... 20.430 9.486Nickel........................................ 40.140 27.000Titanium...................................... 38.680 16.780------------------------------------------------------------------------ Sec. 421.307 [Reserved]

Subpart AC_Secondary Tungsten and Cobalt Subcategory

Source: 50 FR 38386, Sept. 20, 1985, unless otherwise noted.