Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Sand drying wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 0.210 0.085Cyanide (total)............................... 0.114 0.045Lead.......................................... 0.159 0.074Nickel........................................ 0.312 0.210Ammonia (as N)................................ 75.710 33.280Total suspended solids........................ 8.520 6.816pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(b) Sand chlorination off-gas wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 16.080 6.521Cyanide (total)............................... 8.694 3.478Lead.......................................... 12.170 5.651Nickel........................................ 23.910 16.080Ammonia (as N)................................ 5,795.000 2,547.000Total suspended solids........................ 652.100 521.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Sand chlorination area-vent wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 3.154 1.279Cyanide (total)............................... 1.705 0.682Lead.......................................... 2.387 1.108Nickel........................................ 4.688 3.154Ammonia (as N)................................ 1,136.000 499.500Total suspended solids........................ 127.900 102.300pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(d) SiC14 purification wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 2.774 1.125Cyanide (total)............................... 1.500 0.600Lead.......................................... 2.099 0.975Nickel........................................ 4.124 2.774Ammonia (as N)................................ 999.500 439.400Total suspended solids........................ 112.500 89.980pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(e) Feed makeup wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 2.103 0.852Cyanide (total)............................... 1.137 0.455Lead.......................................... 1.591 0.739Nickel........................................ 3.126 2.103Ammonia (as N)................................ 757.500 333.000Total suspended solids........................ 85.250 68.200pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(f) Iron extraction (MIBK) steam stripper bottoms.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 0.830 0.337Cyanide (total)............................... 0.449 0.180Lead.......................................... 0.628 0.292Nickel........................................ 1.234 0.830Ammonia (as N)................................ 299.100 131.500Total suspended solids........................ 33.660 26.930pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(g) Zirconium filtrate.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 14.350 5.819Cyanide (total)............................... 7.758 3.103Lead.......................................... 10.860 5.043Nickel........................................ 21.330 14.350Ammonia (as N)................................ 5,171.000 2,273.000Total suspended solids........................ 581.900 465.500pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(h) Hafnium filtrate.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 0.000 0.000Cyanide (total)............................... 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Ammonia (as N)................................ 0.000 0.000Total suspended solids........................ 0.000 0.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(i) Calcining caustic wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium dioxide and
hafnium dioxide produced
--------------Chromium (total).............................. 3.329 1.350Cyanide (total)............................... 1.799 0.720Lead.......................................... 2.519 1.170Nickel........................................ 4.948 3.329Ammonia (as N)................................ 1,199.000 527.200Total suspended solids........................ 135.000 108.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(j) Pure chlorination wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 14.180 5.748Cyanide (total)............................... 7.663 3.065Lead.......................................... 10.730 4.981Nickel........................................ 21.070 14.180Ammonia (as N)................................ 5,108.000 2,245.000Total suspended solids........................ 574.800 459.800pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(k) Reduction area-vent wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 1.364 0.553Cyanide (total)............................... 0.737 0.295Lead.......................................... 1.032 0.479Nickel........................................ 2.027 1.364Ammonia (as N)................................ 491.300 216.000Total suspended solids........................ 55.290 44.230pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(l) Magnesium recovery off-gas wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 7.671 3.110Cyanide (total)............................... 4.147 1.659Lead.......................................... 5.805 2.695Nickel........................................ 11.400 7.671Ammonia (as N)................................ 2,764.000 1,215.000Total suspended solids........................ 404.300 248.800pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(m) Magnesium recovery area-vent wet air pollution control.
NSPS Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 4.262 1.728Cyanide (total)............................... 2.304 0.921Lead.......................................... 3.225 1.497Nickel........................................ 6.335 4.262Ammonia (as N)................................ 1,535.000 675.000Total suspended solids........................ 172.800 138.200pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(n) Zirconium chip crushing west air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium and hafnium
produced
--------------Chromium (total).............................. 0.000 0.000Cyanide (total)............................... 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Ammonia (as N)................................ 0.000 0.000Total suspended solids........................ 0.000 0.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(o) Acid leachate from zirconium metal production.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of pure
zirconium produced
--------------Chromium (total).............................. 10.900 4.420Cyanide (total)............................... 5.893 2.357Lead.......................................... 8.250 3.831Nickel........................................ 16.210 10.900Ammonia (as N)................................ 3,928.000 1,674.000Total suspended solids........................ 442.000 353.600pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(p) Acid leachate from zirconium alloy production.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium contained in
alloys produced
--------------Chromium (total).............................. 5.835 2.366Cyanide (total)............................... 3.154 1.262Lead.......................................... 4.416 2.050Nickel........................................ 8.674 5.835Ammonia (as N)................................ 2,102.000 895.800Total suspended solids........................ 236.600 189.300pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(q) Leaching rinse water from zirconium metal production.
NSPS Limitations for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of pure
zirconium produced
--------------Chromium (total).............................. 21.810 8.840Cyanide (total)............................... 11.790 4.715Lead.......................................... 16.500 7.661Nickel........................................ 32.410 21.810Ammonia (as N)................................ 7,856.000 3,453.000Total suspended solids........................ 884.000 707.200pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(r) Leaching rinse water from zirconium alloy production.
NSPS for the Primary Zirconium and Hafnium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
zirconium contained in
alloys produced
--------------Chromium (total).............................. 0.292 0.118Cyanide (total)............................... 0.158 0.063Lead.......................................... 0.221 0.103Nickel........................................ 0.434 0.292Ammonia (as N)................................ 105.200 46.240Total suspended solids........................ 11.840 9.468pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times. Sec. 421.335 [Reserved]