Loading (50 kb)...'
(continued)
\1\ Within the range of 7.5 to 10.0 at all times.
(ff) Miscellaneous wastewater sources.
Subpart C_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
formed
---------------------------
Chromium.................................... 0.108 0.044
Nickel...................................... 0.473 0.313
Fluoride.................................... 14.7 6.50
Oil and grease.............................. 4.92 2.95
TSS......................................... 10.1 4.80
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
[50 FR 34270, Aug. 23, 1985; 51 FR 2884, Jan. 22, 1986, as amended at 54 FR 11348, Mar. 17, 1989]
§ 471.32 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) Rolling spent neat oils—Subpart C—BAT. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
rolled with
emulsions
---------------------------
Chromium.................................... 0.063 0.026
Nickel...................................... 0.094 0.063
Fluoride.................................... 10.1 4.49
------------------------------------------------------------------------
(c) Rolling contact cooling water.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
rolled with
water
---------------------------
Chromium.................................... 0.028 0.011
Nickel...................................... 0.042 0.028
Fluoride.................................... 4.49 1.99
------------------------------------------------------------------------
(d) Tube Reducing Spent Lubricant—Subpart C—BAT.
(1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(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 process do not exceed 0.050 mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.
(3) The demonstration required under paragraph (d)(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 (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under subparagraph (d)(2) of this section 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 (d)(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 (d)(2) of this section; or
(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or
(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the NPDES issuing authority that such source has been eliminated.
(5) The concentration limits specified in paragraph (d)(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.
(e) Drawing spent neat oils—Subpart C—BAT. There shall be no discharge of process wastewater pollutants.
(f) Drawing spent emulsions.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt drawn
with
emulsions
---------------------------
Chromium.................................... 0.036 0.015
Nickel...................................... 0.053 0.036
Fluoride.................................... 5.68 2.52
------------------------------------------------------------------------
(g) Extrusion spent lubricants—Subpart C—BAT. There shall be no discharge of process wastewater pollutants.
(h) Extrusion press or solution heat treatment contact cooling water.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
extruded
nickel-
cobalt heat
treated
---------------------------
Chromium.................................... 0.031 0.013
Nickel...................................... 0.046 0.031
Fluoride.................................... 4.95 2.20
------------------------------------------------------------------------
(i) Extrusion press hydraulic fluid leakage.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
extruded
---------------------------
Chromium.................................... 0.086 0.034
Nickel...................................... 0.128 0.086
Fluoride.................................... 13.8 6.13
------------------------------------------------------------------------
(j) Forging equipment cleaning wastewater.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
forged
---------------------------
Chromium.................................... 0.002 0.0006
Nickel...................................... 0.002 0.002
Fluoride.................................... 0.238 0.106
------------------------------------------------------------------------
(k) Forging contact cooling water.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
forged
nickel-
cobalt
cooled with
water
---------------------------
Chromium.................................... 0.018 0.007
Nickel...................................... 0.026 0.018
Fluoride.................................... 2.82 1.25
------------------------------------------------------------------------
(l) Forging press hydraulic fluid leakage.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
forged
---------------------------
Chromium.................................... 0.069 0.028
Nickel...................................... .103 0.069
Fluoride.................................... 11.2 4.94
------------------------------------------------------------------------
(m) Forging spent lubricants—Subpart C—BAT. There shall be no discharge of process wastewater pollutants.
(n) Stationary casting contact cooling water.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt cast
with
stationary
casting
methods
---------------------------
Chromium.................................... 0.448 0.182
Nickel...................................... .666 .448
Fluoride.................................... 72.0 32.0
------------------------------------------------------------------------
(o) Vacuum melting steam condensate—Subpart C—BAT. There shall be no allowance for the discharge of wastewater pollutants.
(p) Metal powder production atomization wastewater.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt metal
powder
atomized
---------------------------
Chromium.................................... 0.970 0.393
Nickel...................................... 1.44 .970
Fluoride.................................... 156 69.2
------------------------------------------------------------------------
(q) Annealing and solution heat treatment contact cooling water—Subpart C—BAT. There shall be no allowance for the discharge of wastewater pollutants.
(r) Wet air pollution control scrubber blowdown.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
formed
---------------------------
Chromium.................................... 0.300 0.122
Nickel...................................... .446 .300
Fluoride.................................... 48.2 21.4
------------------------------------------------------------------------
(s) Surface treatment spent baths.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
surface
treated
---------------------------
Chromium.................................... 0.346 0.141
Nickel...................................... .514 .346
Fluoride.................................... 55.7 24.7
------------------------------------------------------------------------
(t) Surface treatment rinse.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
surface
treated
---------------------------
Chromium.................................... 0.873 0.354
Nickel...................................... 1.30 .873
Fluoride.................................... 141 62.3
------------------------------------------------------------------------
(u) Alkaline cleaning spent baths.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
alkaline
cleaned
--------------------------
Chromium..................................... 0.013 0.005
Nickel....................................... 0.019 0.013
Fluoride..................................... 2.02 0.895
------------------------------------------------------------------------
(v) Alkaline cleaning rinse.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
alkaline
cleaned
---------------------------
Chromium.................................... 0.086 0.035
Nickel...................................... 0.128 0.086
Fluoride.................................... 13.9 6.15
------------------------------------------------------------------------
(w) Molten salt rinse.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day averge
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
treated with
molten salt
---------------------------
Chromium.................................... 0.312 0.127
Nickel...................................... 0.464 0.312
Fluoride.................................... 50.2 22.3
------------------------------------------------------------------------
(x) Ammonia rinse.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
treated with
ammonia
solution
---------------------------
Chromium.................................... 0.006 0.002
Nickel...................................... 0.008 0.006
Fluoride.................................... 0.881 0.391
------------------------------------------------------------------------
(y) Sawing or grinding spent emulsions.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt sawed
or ground
with
emulsions
---------------------------
Chromium.................................... 0.015 0.006
Nickel...................................... 0.022 0.015
Fluoride.................................... 2.35 1.04
------------------------------------------------------------------------
(z) Sawing or grinding rinse.
Subpart C_BAT
------------------------------------------------------------------------
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
nickel-
cobalt
rinsed
---------------------------
Chromium.................................... 0.067 0.027
Nickel...................................... 0.100 0.067
Fluoride.................................... 10.8 4.78
------------------------------------------------------------------------
(aa) Steam cleaning condensate.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt steam
cleaned
--------------------------
Chromium..................................... 0.011 0.005
Nickel....................................... 0.017 0.011
Fluoride..................................... 1.79 0.795
------------------------------------------------------------------------
(bb) Hydrostatic tube testing and ultrasonic testing wastewater—Subpart C—BAT. There shall be no allowance for the discharge of process wastewater pollutants.
(cc) Degreasing spent solvents—Subpart C—BAT. There shall be no discharge of process wastewater pollutants.
(dd) Dye penetrant testing wastewater.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
tested with
dye
penetrant
method
---------------------------
Chromium.................................... 0.079 0.032
Nickel...................................... 0.117 0.079
Fluoride.................................... 12.7 5.63
------------------------------------------------------------------------
(ee) Electrocoating rinse.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
electrocoate
d
---------------------------
Chromium.................................... 1.25 0.506
Nickel...................................... 1.86 1.25
Fluoride.................................... 201 89.0
------------------------------------------------------------------------
(ff) Miscellaneous wastewater sources.
Subpart C_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
formed
---------------------------
Chromium.................................... 0.091 0.037
Nickel...................................... 0.136 0.091
Fluoride.................................... 14.7 6.50
------------------------------------------------------------------------
[50 FR 34270, Aug. 23, 1985; 51 FR 2885, Jan. 22, 1986, as amended at 54 FR 11348, Mar. 17, 1989; 54 FR 13606, Apr. 4, 1989]
§ 471.33 New source performance standards (NSPS).
top
Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The mass of pollutants in the nickel-cobalt forming process wastewater shall not exceed the following values:
(a) Rolling spent neat oils—Subpart C—NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
rolled with
emulsions
---------------------------
Chromium.................................... 0.063 0.026
Nickel...................................... 0.094 0.063
Fluoride.................................... 10.1 4.49
Oil and grease.............................. 1.70 1.70
TSS......................................... 2.55 2.04
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(c) Rolling contact cooling water.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
rolled with
water
---------------------------
Chromium.................................... 0.028 0.012
Nickel...................................... 0.042 0.028
Fluoride.................................... 4.49 1.99
Oil and grease.............................. 0.754 0.754
TSS......................................... 1.13 0.905
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(d) Tube Reducing Spent Lubricant—Subpart C—NSPS.
(1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(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 paragraph (d)(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 paragraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under paragraph (d)(2) of this section 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 paragraph (d)(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 (d)(2) of this section; or
(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or
(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the NPDES issuing authority that such source has been eliminated.
(5) The concentration limits specified in paragraph (d)(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.
(e) Drawing spent neat oils—Subpart C—NSPS. There shall be no discharge of process wastewater pollutants.
(f) Drawing spent emulsions.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt drawn
with
emulsions
---------------------------
Chromium.................................... 0.036 0.015
Nickel...................................... 0.053 0.036
Fluoride.................................... 5.68 2.52
Oil and grease.............................. 0.954 0.954
TSS......................................... 1.43 1.15
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(g) Extrusion spent lubricants—Subpart C—NSPS. There shall be no discharge of process wastewater pollutants.
(h) Extrusion press or solution heat treatment contact cooling water.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
extruded
nickel-
cobalt heat
treated
---------------------------
Chromium.................................... 0.031 0.013
Nickel...................................... 0.046 0.031
Fluoride.................................... 4.95 2.20
Oil and grease.............................. 0.832 0.832
TSS......................................... 1.25 0.999
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(i) Extrusion press hydraulic fluid leakage.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
extruded
---------------------------
Chromium.................................... 0.086 0.035
Nickel...................................... 0.128 0.086
Fluoride.................................... 13.8 6.13
Oil and grease.............................. 2.32 2.32
TSS......................................... 3.48 2.79
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(j) Forging equipment cleaning wastewater.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
nickel-
cobalt
forged
-----------------------------
Chromium.................................. 0.002 0.00006
Nickel.................................... 0.002 0.002
Fluoride.................................. 0.238 0.106
Oil and grease............................ 0.040 0.040
TSS....................................... 0.060 0.048
pH........................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(k) Forging contact cooling water.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
forged
nickel-
cobalt
cooled with
water
--------------------------
Chromium..................................... 0.018 0.007
Nickel....................................... 0.026 0.018
Fluoride..................................... 2.82 1.25
Oil and grease............................... 0.474 0.474
TSS.......................................... 0.711 0.569
pH........................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.
(l) Forging press hydraulic fluid leakage.
Subpart C_NSPS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg(pounds per (continued)