Loading (50 kb)...'
(continued)
mg/kg
(pounds per
million
pounds) of
scrap
washed
-------------------------
Chromium (total).............................. 6.684 2.710
Lead.......................................... 5.058 2.348
Nickel........................................ 9.935 6.684
Titanium...................................... 9.574 4.155
Oil and grease................................ 180.600 180.600
Total suspended solids........................ 271.000 216.000
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(n) Casting crucible wash water.
NSPS 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 0.072
Lead.......................................... 0.134 0.062
Nickel........................................ 0.262 0.176
Titanium...................................... 0.253 0.110
Oil and grease................................ 4.770 4.770
Total suspended solids........................ 7.155 5.724
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(o) Casting contact cooling water.
NSPS 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 10.950
Lead.......................................... 20.430 9.486
Nickel........................................ 40.140 27.000
Titanium...................................... 38.680 16.780
Oil and grease................................ 729.700 729.700
Total suspended solids........................ 1,095.000 875.700
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
§ 421.305 Pretreatment standards for existing sources.
top
Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources. The mass of wastewater pollutants in primary and secondary titanium process wastewater introduced into a POTW must not exceed the following values:
(a) Chlorination off-gas wet air pollution control.
PSES 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 0.140
Lead.......................................... 0.262 0.122
Nickel........................................ 0.515 0.346
Titanium...................................... 0.496 0.215
------------------------------------------------------------------------
(b) Chlorination Area-vent wet air pollution control.
PSES 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 0.156
Lead.......................................... 0.291 0.135
Nickel........................................ 0.572 0.385
Titanium...................................... 0.551 0.239
------------------------------------------------------------------------
(c) TiCl4 handling wet air pollution control.
PSES 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 0.028
Lead.......................................... 0.052 0.024
Nickel........................................ 0.103 0.069
Titanium...................................... 0.099 0.043
------------------------------------------------------------------------
(d) Reduction area wet air pollution control.
PSES 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 0.620
Lead.......................................... 1.156 0.537
Nickel........................................ 2.272 1.528
Titanium...................................... 2.189 0.950
------------------------------------------------------------------------
(e) Melt cell wet air pollution control.
PSES 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 0.319
Lead.......................................... 0.595 0.276
Nickel........................................ 1.169 0.787
Titanium...................................... 1.127 0.489
------------------------------------------------------------------------
(f) Chlorine liquefaction wet air pollution control.
PSES 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).............................. 11.010 4.463
Lead.......................................... 8.332 3.868
Nickel........................................ 16.370 11.010
Titanium...................................... 15.770 6.844
------------------------------------------------------------------------
(g) Sodium reduction container reconditioning wash water.
PSES 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 0.192
Lead.......................................... 0.359 0.167
Nickel........................................ 0.705 0.474
Titanium...................................... 0.679 0.295
------------------------------------------------------------------------
(h) Chip crushing wet air pollution control.
PSES 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).............................. 0.848 0.344
Lead.......................................... 0.642 0.298
Nickel........................................ 1.261 0.848
Titanium...................................... 1.215 0.527
------------------------------------------------------------------------
(i) Acid leachate and rinse water.
PSES 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 1.776
Lead.......................................... 3.315 1.539
Nickel........................................ 6.512 4.381
Titanium...................................... 6.275 2.723
------------------------------------------------------------------------
(j) Sponge crushing and screening wet air pollution control.
PSES 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).............................. 0.239 0.097
Lead.......................................... 0.181 0.084
Nickel........................................ 0.356 0.239
Titanium...................................... 0.343 0.149
------------------------------------------------------------------------
(k) Acid pickle and wash water.
PSES 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 0.009
Lead.......................................... 0.017 0.008
Nickel........................................ 0.034 0.023
Titanium...................................... 0.032 0.014
------------------------------------------------------------------------
(l) Scrap milling wet air pollution control.
PSES 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
-------------------------
Chromium (total).............................. 0.084 0.034
Lead.......................................... 0.064 0.030
Nickel........................................ 0.125 0.084
Titanium...................................... 0.120 0.052
------------------------------------------------------------------------
(m) Scrap detergent wash water.
PSES 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 2.710
Lead.......................................... 5.058 2.348
Nickel........................................ 9.935 6.684
Titanium...................................... 9.574 4.155
------------------------------------------------------------------------
(n) Casting crucible wash water.
PSES 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 0.072
Lead.......................................... 0.134 0.062
Nickel........................................ 0.262 0.176
Titanium...................................... 0.253 0.110
------------------------------------------------------------------------
(o) Casting contact cooling water.
PSES 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 10.950
Lead.......................................... 20.430 9.486
Nickel........................................ 40.140 27.000
Titanium...................................... 38.680 16.780
------------------------------------------------------------------------
§ 421.306 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 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 0.140
Lead.......................................... 0.262 0.122
Nickel........................................ 0.515 0.346
Titanium...................................... 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 0.156
Lead.......................................... 0.291 0.135
Nickel........................................ 0.572 0.385
Titanium...................................... 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 0.028
Lead.......................................... 0.052 0.024
Nickel........................................ 0.103 0.069
Titanium...................................... 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 0.620
Lead.......................................... 1.156 0.537
Nickel........................................ 2.272 1.528
Titanium...................................... 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 0.319
Lead.......................................... 0.595 0.276
Nickel........................................ 1.169 0.787
Titanium...................................... 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 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Titanium...................................... 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 0.192
Lead.......................................... 0.359 0.167
Nickel........................................ 0.705 0.474
Titanium...................................... 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
-------------------------
Chromium (total).............................. 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Titanium...................................... 0.000 0.000
------------------------------------------------------------------------
(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 1.776
Lead.......................................... 3.315 1.539
Nickel........................................ 6.512 4.381
Titanium...................................... 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
-------------------------
Chromium (total).............................. 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Titanium...................................... 0.000 0.000
------------------------------------------------------------------------
(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 0.009
Lead.......................................... 0.017 0.008
Nickel........................................ 0.034 0.023
Titanium...................................... 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
-------------------------
Chromium (total).............................. 0.000 0.000
Lead.......................................... 0.000 0.000
Nickel........................................ 0.000 0.000
Titanium...................................... 0.000 0.000
------------------------------------------------------------------------
(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 2.710
Lead.......................................... 5.058 2.348
Nickel........................................ 9.935 6.684
Titanium...................................... 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 0.072
Lead.......................................... 0.134 0.062
Nickel........................................ 0.262 0.176
Titanium...................................... 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 10.950
Lead.......................................... 20.430 9.486
Nickel........................................ 40.140 27.000
Titanium...................................... 38.680 16.780
------------------------------------------------------------------------
§ 421.307 [Reserved]
top
Subpart AC—Secondary Tungsten and Cobalt Subcategory
top
Source: 50 FR 38386, Sept. 20, 1985, unless otherwise noted.
§ 421.310 Applicability: Description of the secondary tungsten and cobalt subcategory.
top
The provisions of this subpart are applicable to discharges resulting from the production of tungsten or cobalt at secondary tungsten and cobalt facilities processing tungsten or tungsten carbide scrap raw materials.
§ 421.311 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.
§ 421.312 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) Tungsten detergent wash and rinse.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tungsten
scrap
washed
-------------------------
Copper........................................ 0.371 0.195
Nickel........................................ 0.374 0.248
Ammonia (as N)................................ 25.990 11.430
Cobalt........................................ 0.768 0.337
Tungsten...................................... 1.357 0.542
Oil and grease................................ 3.900 2.340
Total suspended solids........................ 7.995 3.803
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Tungsten leaching acid.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tungsten
produced
-------------------------
Copper........................................ 4.885 2.571
Nickel........................................ 4.937 3.265
Ammonia (as N)................................ 342.700 150.700
Cobalt........................................ 10.130 4.448
Tungsten...................................... 17.890 7.147
Oil and grease................................ 51.420 30.850
Total suspended solids........................ 105.400 50.140
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Tungsten post-leaching wash and rinse.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
million
pounds) of
tungsten
produced
-------------------------
Copper........................................ 9.772 5.143
Nickel........................................ 9.875 6.532
Ammonia (as N)................................ 685.600 301.400
Cobalt........................................ 20.263 8.897
Tungsten...................................... 35.800 14.300
Oil and grease................................ 102.900 61.720
Total suspended solids........................ 210.900 100.300
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Synthetic scheelite filtrate.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/kg
(pounds per
millionpounds) of (continued)