Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 421  /  Sec. 421.294 Standards of performance for new sources.

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

(a) Tin smelter SO2 scrubber.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of crude

tapped tin produced

--------------Arsenic....................................... 12.790 5.703Lead.......................................... 2.575 1.196Iron.......................................... 11.040 5.611Tin........................................... 3.495 2.024Total suspended solids........................ 138.000 110.400pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(b) Dealuminizing rinse.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

dealuminized scrap

produced

--------------Lead.......................................... 0.010 0.005Cyanide (total)............................... 0.007 0.003Fluoride...................................... 1.225 0.697Tin........................................... 0.013 0.008Total suspended solids........................ 0.525 0.420pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(c) Tin mud acid neutralization filtrate.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

neutralized dewatered

tin mud produced

--------------Lead.......................................... 1.413 0.656Cyanide (total)............................... 1.009 0.404Fluoride...................................... 176.600 100.400Tin........................................... 1.918 1.110Total suspended solids........................ 75.710 60.560pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(d) Tin hydroxide wash.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of tin

hydroxide washed

--------------Lead.......................................... 3.347 1.554Cyanide (total)............................... 2.391 0.956Fluoride...................................... 418.400 237.900Tin........................................... 4.542 2.630Total suspended solids........................ 179.300 143.400pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(e) Spent electrowinning solution from new scrap.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

cathode tin produced

--------------Lead.......................................... 4.704 2.184Cyanide (total)............................... 3.360 1.344Fluoride...................................... 588.000 334.300Tin........................................... 6.384 3.696Total suspended solids........................ 252.000 201.600pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(f) Spent electrowinning solution from municipal solid waste.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of MSW

scrap used as raw

material

--------------Lead.......................................... 0.033 0.015Cyanide (total)............................... 0.024 0.010Fluoride...................................... 4.165 2.368Tin........................................... 0.045 0.026Total suspended solids........................ 1.785 1.428pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(g) Tin hydroxide supernatant from scrap.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of tin

metal recovered from

scrap

--------------Lead.......................................... 15.580 7.233Cyanide (total)............................... 11.130 4.451Fluoride...................................... 1,947.000 1,107.000Tin........................................... 21.140 12.240Total suspended solids........................ 834.600 667.700pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(h) Tin hydroxide supernatant from plating solutions and sludges.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of tin

metal recovered from

plating solutions and

sludges

--------------Lead.......................................... 32.20 14.95Cyanide (total)............................... 23.00 9.20Fluoride...................................... 4,025.00 2,289.00Tin........................................... 43.70 25.30Total suspended solids........................ 1,725.00 1,380.00pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.

(i) Tin hydroxide filtrate.

NSPS for the Secondary Tin Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of tin

metal produced

--------------Lead.......................................... 7.012 3.256Cyanide (total)............................... 5.009 2.004Fluoride...................................... 876.500 498.400Tin........................................... 9.517 5.510Total suspended solids........................ 375.700 300.500pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.