Loading (50 kb)...'
(continued)
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
sawed or
ground with
emulsions
---------------------------
Chromium.................................... 0.124 0.051
Cyanide..................................... 0.082 0.034
Nickel...................................... 0.540 0.357
Ammonia..................................... 37.5 16.50
Fluoride.................................... 16.7 7.42
------------------------------------------------------------------------
(m) Wet air pollution control scrubber blowdown—Subpart I—PSES. There shall be no allowance for the discharge or process wastewater pollutants.
(n) Degreasing spent solvents—Subpart I—PSES. There shall be no discharge of process wastewater pollutants.
(o) Degreasing rinse—Subpart I—PSES. There shall be no discharge of process wastewater pollutants.
(p) Molten salt rinse.
Subpart I_PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
treated with
molten salt
---------------------------
Chromium.................................... 0.333 0.136
Cyanide..................................... 0.220 0.091
Nickel...................................... 1.45 0.960
Ammonia..................................... 101 44.3
Fluoride.................................... 45 20
------------------------------------------------------------------------
(q) Sawing or grinding contact cooling water.
Subpart I_PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
sawed or
ground with
contact
cooling
water
---------------------------
Chromium.................................... 0.142 0.058
Cyanide..................................... 0.093 0.039
Nickel...................................... 0.617 0.408
Ammonia..................................... 42.8 18.8
Fluoride.................................... 19.1 8.48
------------------------------------------------------------------------
(r) Sawing or grinding rinse.
Subpart I_PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
sawed or
ground
zirconium-
hafnium
rinsed
---------------------------
Chromium.................................... 0.079 0.033
Cyanide..................................... 0.052 0.022
Nickel...................................... 0.346 0.229
Ammonia..................................... 24 10.6
Fluoride.................................... 10.7 4.75
------------------------------------------------------------------------
(s) Sawing or grinding spent neat oils—Subpart I—PSES. There shall be no discharge of process wastewater pollutants.
(t) Inspection and testing wastewater.
Subpart I_PSES
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
tested
--------------------------
Chromium..................................... 0.007 0.003
Cyanide...................................... 0.005 0.002
Nickel....................................... 0.030 0.020
Ammonia...................................... 2.06 0.903
Fluoride..................................... 0.917 0.407
------------------------------------------------------------------------
[50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986, as amended at 54 FR 11352, Mar. 17, 1989]
§ 471.95 Pretreatment standards for new sources (PSNS).
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 (PSNS). The mass of wastewater shall not exceed the following:
(a) Rolling spent neat oils—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(b) Drawing spent lubricants—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(c) Extrusion spent emulsions—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(d) Extrusion press hydraulic fluid leakage.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
extruded
---------------------------
Chromium.................................... 0.104 0.043
Cyanide..................................... 0.069 0.029
Nickel...................................... 0.455 0.301
Ammonia..................................... 31.6 13.9
Fluoride.................................... 14.1 6.26
------------------------------------------------------------------------
(e) Swaging spent neat oils—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(f) Heat treatment contact cooling water.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off/kg
(pounds per
million off-
pounds) of
zirconium-
hafnium heat
treated
---------------------------
Chromium.................................... 0.015 0.006
Cyanide..................................... 0.010 0.004
Nickel...................................... 0.066 0.044
Ammonia..................................... 4.57 2.01
Fluoride.................................... 2.04 0.906
------------------------------------------------------------------------
(g) Tube Reducing Spent Lubricant—Subpart I—PSNS.
(1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (g)(2) of this section.
(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing processdonotexceed0.050mg/lof N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.
(3) The demonstration required under subparagraph (g)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in subparagraph (g)(2) of this section, the actions described in paragraph (g)(4) of this section shall be taken, and the demonstration required under paragraph (g)(2) shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.
(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in subparagraph (g)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:
(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (g)(2) of this section; or
(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (g)(3) of this section; or
(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (g)(2) of this section and demonstrates to the satisfaction of the POTW control authority that such source has been eliminated.
(5) The concentration limits specified in paragraph (g)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:
(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate (i.e., lower) allowable discharge concentration; and
(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.
(h) Surface treatment spent baths.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off/kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
surface
treated
---------------------------
Chromium.................................... 0.150 0.061
Cyanide..................................... 0.099 0.041
Nickel...................................... 0.653 0.432
Ammonia..................................... 45.3 20
Fluoride.................................... 20 8.98
------------------------------------------------------------------------
(i) Surface treatment rinse.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off/kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
surface
treated
---------------------------
Chromium.................................... 0.391 0.160
Cyanide..................................... 0.258 0.107
Nickel...................................... 1.71 1.13
Ammonia..................................... 119 52.1
Fluoride.................................... 52.9 23.5
------------------------------------------------------------------------
(j) Alkaline cleaning spent baths.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off/kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
alkaline
cleaned
---------------------------
Chromium.................................... 0.704 0.288
Cyanide..................................... 0.464 0.192
Nickel...................................... 3.07 2.03
Ammonia..................................... 214 93.8
Fluoride.................................... 95.2 42.3
------------------------------------------------------------------------
(k) Alkaline cleaning rinse.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
alkaline
cleaned
---------------------------
Chromium.................................... 1.38 0.565
Cyanide..................................... 0.911 0.377
Nickel...................................... 6.03 3.99
Ammonia..................................... 419 184
Fluoride.................................... 187 82.9
------------------------------------------------------------------------
(l) Sawing or grinding spent emulsions.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
sawed or
ground with
emulsions
---------------------------
Chromium.................................... 0.124 0.051
Cyanide..................................... 0.082 0.034
Nickel...................................... 0.540 0.357
Ammonia..................................... 37.5 16.50
Fluoride.................................... 16.7 7.42
------------------------------------------------------------------------
(m) Wet air pollution control scrubber blowdown—Subpart I—PSNS. There shall be no allowance for the discharge of process wastewater pollutants.
(n) Degreasing spent solvents—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(o) Degreasing rinse—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(p) Molten salt rinse.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
rinsed
following
molten salt
treatment
---------------------------
Chromium.................................... 0.333 0.136
Cyanide..................................... 0.220 0.091
Nickel...................................... 1.45 0.960
Ammonia..................................... 101 44.3
Fluoride.................................... 45.0 20.0
------------------------------------------------------------------------
(q) Sawing or grinding contact cooling water.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
sawed or
ground with
contact
cooling
water
---------------------------
Chromium.................................... 0.142 0.058
Cyanide..................................... 0.093 0.039
Nickel...................................... 0.617 0.408
Ammonia..................................... 42.8 18.8
Fluoride.................................... 19.1 8.48
------------------------------------------------------------------------
(r) Sawing or grinding rinse.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
sawed or
ground
zirconium-
hafnium
rinsed
---------------------------
Chromium.................................... 0.079 0.033
Cyanide..................................... 0.052 0.022
Nickel...................................... 0.346 0.229
Ammonia..................................... 24.0 10.6
Fluoride.................................... 10.7 4.75
------------------------------------------------------------------------
(s) Sawing or grinding spent neat oils—Subpart I—PSNS. There shall be no discharge of process wastewater pollutants.
(t) Inspection and testing wastewater.
Subpart I_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
zirconium-
hafnium
tested
--------------------------
Chromium..................................... 0.007 0.003
Cyanide...................................... 0.005 0.002
Nickel....................................... 0.030 0.020
Ammonia...................................... 2.06 0.903
Fluoride..................................... 0.917 0.407
------------------------------------------------------------------------
[50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986, as amended at 54 FR 11352, Mar. 17, 1989]
§ 471.96 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart J—Metals Powders Subcategory
top
§ 471.100 Applicability; description of the powder metals subcategory.
top
This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the metal powders subcategory.
§ 471.101 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
top
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
(a) Metal powder production atomization wastewater.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder wet
atomized
---------------------------
Copper...................................... 9.58 5.04
Cyanide..................................... 1.46 0.605
Lead........................................ 2.12 1.01
Oil and grease.............................. 101 60.5
TSS......................................... 207 98.3
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(b) Sizing spent emulsion.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
sized
-------------------------
Copper........................................ 0.028 0.015
Cyanide....................................... 0.004 0.002
Lead.......................................... 0.006 0.003
Oil and grease................................ 0.292 0.175
TSS........................................... 0.599 0.285
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Oil-resin impregnation wastewater—Subpart J—BPT. There shall be no discharge of process wastewater pollutants.
(d) Steam treatment wet air pollution control scrubber blowdown.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
power
metallurgy
parts steam
treated
---------------------------
Copper...................................... 1.51 0.792
Cyanide..................................... 0.230 0.095
Lead........................................ 0.333 0.159
Oil and grease.............................. 15.9 9.51
TSS......................................... 32.5 15.5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(e) Tumbling, burnishing and cleaning wastewater.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
metallurgy
parts
tumbled,
burnished,
or cleaned
---------------------------
Copper...................................... 8.36 4.40
Cyanide..................................... 1.28 0.528
Lead........................................ 1.85 0.880
Oil and grease.............................. 88.0 52.800
TSS......................................... 181 85.8
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(f) Sawing or grinding spent neat oils—Subpart J—BPT. There shall be no discharge of process wastewater pollutants.
(g) Sawing or grinding spent emulsion.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
metallurgy
parts sawed
or ground
with
emulsion
---------------------------
Copper...................................... 0.035 0.018
Cyanide..................................... 0.005 0.002
Lead........................................ 0.008 0.004
Oil and grease.............................. 0.362 0.217
TSS......................................... 0.742 0.353
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(h) Sawing or grinding contact cooling water.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
metallurgy
parts sawed
or ground
with contact
cooling
---------------------------
Copper...................................... 3.08 1.62
Cyanide..................................... 0.470 0.195
Lead........................................ 0.681 0.324
Oil and grease.............................. 32.4 19.5
TSS......................................... 66.4 31.6
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(i) Hot pressing contact cooling water.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
cooled after
pressing
---------------------------
Copper...................................... 16.7 8.80
Cyanide..................................... 2.55 1.06
Lead........................................ 3.70 1.76
Oil and grease.............................. 176 106
TSS......................................... 361 172
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(j) Mixing wet air pollution control scrubber blowdown.
Subpart J_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder mixed
---------------------------
Copper...................................... 15.0 7.90
Cyanide..................................... 2.29 0.948
Lead........................................ 3.32 1.58
Oil and grease.............................. 158 94.8
TSS......................................... 324 154
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(k) Degreasing spent solvents—Subpart J—BPT. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986]
§ 471.102 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
top
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):
(a) Metal powder production atomization wastewater.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder wet
atomized
--------------------------
Copper....................................... 9.58 5.04
Cyanide...................................... 1.46 0.605
Lead......................................... 2.12 1.01
------------------------------------------------------------------------
(b) Sizing spent emulsions.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) or
powder sized
---------------------------
Copper...................................... 0.028 0.015
Cyanide..................................... 0.004 0.002
Lead........................................ 0.006 0.003
------------------------------------------------------------------------
(c) Oil-resin impregnation wastewater—Subpart J—BAT. There shall be no discharge of process wastewater pollutants.
(d) Steam treatment wet air pollution control scrubber blowdown.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
metallurgy
parts steam
treated
--------------------------
Copper....................................... 1.51 0.792
Cyanide...................................... 0.230 0.095
Lead......................................... 0.333 0.159
------------------------------------------------------------------------
(e) Tumbling, burnishing and cleaning wastewater.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) or
powder
metallurgy
parts
tumbled,
burnished,
or cleaned
---------------------------
Copper...................................... 8.36 4.40
Cyanide..................................... 1.28 0.528
Lead........................................ 1.850 0.880
------------------------------------------------------------------------
(f) Sawing or grinding spent neat oils. Subpart J—BAT. There shall be no discharge of process wastewater pollutants.
(g) Sawing or grinding spent emulsions.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder
metallurgy
parts sawed
or ground
with
emulsions
----------------------------
Copper..................................... 0.0035 0.018
Cyanide.................................... 0.005 0.002
Lead....................................... 0.008 0.004
------------------------------------------------------------------------
(h) Sawing or grinding contact cooling water.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
powder sawed
or ground
with contact
cooling
---------------------------
Copper...................................... 3.08 1.62
Cyanide..................................... 0.470 0.195
Lead........................................ 0.681 0.324
------------------------------------------------------------------------
(i) Hot pressing contact cooling water.
Subpart J_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------ (continued)