CCLME.ORG - 40 CFR PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY

(continued)
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
------------------------------------------------------------------------

(f) Hydrofluorination alkaline scrubber.

BAT Limitations for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
tetrafluori
de produced
-------------------------
Chromium (total).............................. 0.007 0.003
Copper........................................ 0.026 0.012
Nickel........................................ 0.011 0.007
Fluoride...................................... 0.700 0.398
------------------------------------------------------------------------

(g) Hydrofluorination water scrubber.

BAT Limitations for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
tetrafluori
de produced
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
------------------------------------------------------------------------

(h) Magnesium reduction and casting floor wash.

BAT Limitations for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
produced by
magnesium
reduction
-------------------------
Chromium (total).............................. 0.011 0.005
Copper........................................ 0.039 0.018
Nickel........................................ 0.017 0.011
Fluoride...................................... 1.054 0.599
------------------------------------------------------------------------

(i) Laundry wastewater.

BAT Limitations for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
produced by
magnesium
reduction
-------------------------
Chromium (total).............................. 0.036 0.014
Copper........................................ 0.123 0.059
Nickel........................................ 0.053 0.036
Fluoride...................................... 3.360 1.910
------------------------------------------------------------------------

§ 421.324 Standards of performance for new sources.
top
Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Refinery sump filtrate.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 27.14 11.00
Copper........................................ 93.88 44.74
Nickel........................................ 40.34 27.14
Fluoride...................................... 2,567.00 1,459.00
Total suspended solids........................ 1,100.00 880.10
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(b) Slag leach reslurry.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 1.689 0.685
Copper........................................ 5.844 2.785
Nickel........................................ 2.511 1.689
Fluoride...................................... 159.800 90.860
Total suspended solids........................ 68.490 54.790
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(c) Solvent extraction raffinate filtrate.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 2.357 0.955
Copper........................................ 8.152 3.885
Nickel........................................ 3.503 2.357
Fluoride...................................... 222.900 126.700
Total suspended solids........................ 95.540 76.430
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(d) Digestion wet air pollution control.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(e) Evaporation and denitration wet air pollution control

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
trioxide
produced
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(f) Hydrofluorination alkaline scrubber.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
tetrafluori
de produced
-------------------------
Chromium (total).............................. 0.007 0.003
Copper........................................ 0.026 0.012
Nickel........................................ 0.011 0.007
Fluoride...................................... 0.700 0.398
Total suspended solids........................ 0.300 0.240
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(g) Hydrofluorination water scrubber.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
tetrafluori
de produced
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(h) Magnesium reduction and casting floor wash.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
produced by
magnesium
reduction
-------------------------
Chromium (total).............................. 0.011 0.005
Copper........................................ 0.039 0.018
Nickel........................................ 0.017 0.011
Fluoride...................................... 1.054 0.599
Total suspended solids........................ 0.452 0.361
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(i) Laundry wastewater.

NSPS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
produced by
magnesium
reduction
-------------------------
Chromium (total).............................. 0.036 0.014
Copper........................................ 0.123 0.059
Nickel........................................ 0.053 0.036
Fluoride...................................... 3.360 1.910
Total suspended solids........................ 1.440 1.152
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

§ 421.325 [Reserved]
top
§ 421.326 Pretreatment standards for new sources.
top
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 secondary uranium process wastewater introduced into a POTW shall not exceed the following values:

(a) Refinery sump filtrate.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 27.14 11.00
Copper........................................ 93.88 44.74
Nickel........................................ 40.34 27.14
Fluoride...................................... 2,567.00 1,459.00
------------------------------------------------------------------------

(b) Slag leach reslurry.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 1.689 0.685
Copper........................................ 5.844 2.785
Nickel........................................ 2.511 1.689
Fluoride...................................... 159.800 90.860
------------------------------------------------------------------------

(c) Solvent extraction raffinate filtrate.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 2.357 0.955
Copper........................................ 8.152 3.885
Nickel........................................ 3.503 2.357
Fluoride...................................... 222.900 126.700
------------------------------------------------------------------------

(d) Digestion wet air pollution control.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
processed
in the
refinery
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
------------------------------------------------------------------------

(e) Evaporation and denitration wet air pollution control.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
trioxide
produced
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
------------------------------------------------------------------------

(f) Hydrofluorination alkaline scrubber.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
tetrafluori
de produced
-------------------------
Chromium (total).............................. 0.007 0.003
Copper........................................ 0.026 0.012
Nickel........................................ 0.011 0.007
Fluoride...................................... 0.700 0.398
------------------------------------------------------------------------

(g) Hydrofluorination water scrubber.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
tetrafluori
de produced
-------------------------
Chromium (total).............................. 0.000 0.000
Copper........................................ 0.000 0.000
Nickel........................................ 0.000 0.000
Fluoride...................................... 0.000 0.000
------------------------------------------------------------------------

(h) Magnesium reduction and casting floor wash.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
trioxide
produced
-------------------------
Chromium (total).............................. 0.011 0.005
Copper........................................ 0.039 0.018
Nickel........................................ 0.017 0.011
Fluoride...................................... 1.054 0.599
------------------------------------------------------------------------

(i) Laundry wastewater.

PSNS for the Secondary Uranium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
uranium
produced by
magnesium
reduction
-------------------------
Chromium (total).............................. 0.036 0.014
Copper........................................ 0.123 0.059
Nickel........................................ 0.053 0.036
Fluoride...................................... 3.360 1.910
------------------------------------------------------------------------

§ 421.327 [Reserved]
top
Subpart AE—Primary Zirconium and Hafnium Subcategory
top
Source: 50 FR 38395, Sept. 20, 1985, unless otherwise noted.

§ 421.330 Applicability: Description of the primary zirconium and hafnium subcategory.
top
The provisions of this subpart are applicable to discharges resulting from the production of zirconium or hafnium at primary zirconium and hafnium facilities. There are two levels of BPT, BAT, NSPS, PSES and PSNS provisions for this subpart. Facilities which only produce zirconium or zirconium/nickel alloys by magnesium reduction of zirconium dioxide are exempt from regulations. All other facilities are subject to these regulations.

§ 421.331 Specialized definitions.
top
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.

§ 421.332 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
top
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 practicable technology currently available:

(a) Sand drying wet air pollution control.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 0.250 0.102
Cyanide (total)............................... 0.165 0.068
Lead.......................................... 0.239 0.114
Nickel........................................ 1.091 0.721
Ammonia (as N)................................ 75.710 33.280
Total suspended solids........................ 23.290 11.080
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(b) Sand chlorination off-gas wet air pollution control.

BPT 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
zironium
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 19.130 7.825
Cyanide (total)............................... 12.610 5.216
Lead.......................................... 18.260 8.694
Nickel........................................ 83.460 55.210
Ammonia (as N)................................ 5,795.000 2,547.000
Total suspended solids........................ 1,782.000 847.700
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(c) Sand chlorination area-vent wet air pollution control.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 3.751 1.534
Cyanide (total)............................... 2.472 1.023
Lead.......................................... 3.580 1.705
Nickel........................................ 16.370 10.830
Ammonia (as N)................................ 1,136.000 449.500
Total suspended solids........................ 349.500 166.200
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(d) SiCl4 purification wet air pollution control.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 3.299 1.350
Cyanide (total)............................... 2.174 0.900
Lead.......................................... 3.149 1.500
Nickel........................................ 14.400 9.522
Ammonia (as N)................................ 999.500 439.400
Total suspended solids........................ 307.400 146.200
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(e) Feed makeup wet air pollution control.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 2.501 1.023
Cyanide (total)............................... 1.648 0.682
Lead.......................................... 2.387 1.137
Nickel........................................ 10.910 7.217
Ammonia (as N)................................ 757.500 333.000
Total suspended solids........................ 233.000 110.800
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(f) Iron extraction (MIBK) steam stripper bottoms.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 0.987 0.404
Cyanide (total)............................... 0.651 0.269
Lead.......................................... 0.942 0.449
Nickel........................................ 4.308 2.850
Ammonia (as N)................................ 299.100 131.500
Total suspended solids........................ 92.000 43.760
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(g) Zirconium filtrate.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 17.070 6.982
Cyanide (total)............................... 11.250 4.655
Lead.......................................... 16.290 7.758
Nickel........................................ 74.480 49.260
Ammonia (as N)................................ 5,171.000 2,273.000
Total suspended solids........................ 1,590.000 756.400
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(h) Hafnium filtrate.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 0.000 0.000
Cyanide (total)............................... 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Ammonia (as N)................................ 0.000 0.000
Total suspended solids........................ 0.000 0.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(i) Calcining caustic wet air pollution control.

BPT 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
dioxide and
hafnium
dioxide
produced
-------------------------
Chromium (total).............................. 3.959 1.619
Cyanide (total)............................... 2.609 1.080
Lead.......................................... 3.779 1.799
Nickel........................................ 17.270 11.430
Ammonia (as N)................................ 1,199.000 527.200
Total suspended solids........................ 368.900 175.400
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(j) Pure chlorination wet air pollution control.

BPT Limitations for the Primary Zirconium and Hafnium Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------ (continued)