Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 421  /  Sec. 421.284 Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Tantalum alloy leach and rinse.

NSPS for the Secondary Tantalum Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

tantalum powder produced

--------------Copper........................................ 295.200 140.700Lead.......................................... 64.570 29.980Nickel........................................ 126.800 85.320Zinc.......................................... 235.200 96.850Tantalum...................................... 103.800 ...........Total suspended solids........................ 3,459.000 2,767.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(b) Capacitor leach and rinse.

NSPS for the Secondary Tantalum Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

tantalum powder produced

from leaching

--------------Copper........................................ 25.860 12.320Lead.......................................... 5.656 2.626Nickel........................................ 11.110 7.474Zinc.......................................... 20.600 8.484Tantalum...................................... 9.090 ...........Total suspended solids........................ 303.000 242.400pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(c) Tantalum sludge leach and rinse.

NSPS for the Secondary Tantalum Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

equivalent pure tantalum

powder produced

--------------Copper........................................ 262.800 125.200Lead.......................................... 57.480 26.690Nickel........................................ 112.900 75.960Zinc.......................................... 209.400 86.230Tantalum...................................... 92.390 ...........Total suspended solids........................ 3,080.000 2,464.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(d) Tantalum powder acid wash and rinse.

NSPS for the Secondary Tantalum Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

tantalum powder produced

--------------Copper........................................ 0.448 0.214Lead.......................................... 0.098 0.046Nickel........................................ 0.193 0.130Zinc.......................................... 0.357 0.147Tantalum...................................... 0.158 ...........Total suspended solids........................ 5.250 4.200pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(e) Leaching wet air pollution control.

NSPS for the Secondary Tantalum Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

equivalent pure tantalum

powder produced

--------------Copper........................................ 6.246 2.977Lead.......................................... 1.366 0.634Nickel........................................ 2.684 1.806Zinc.......................................... 4.978 2.050Tantalum...................................... 2.196 ...........Total suspended solids........................ 73.200 58.560pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times. Sec. 421.285 [Reserved]