CCLME.ORG - 40 CFR PART 471—NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY

(continued)
Cyanide..................................... 0.121 0.050
Silver...................................... 0.171 0.071
------------------------------------------------------------------------

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals cast
by the semi-
continuous
or
continuous
method
---------------------------
Cadmium..................................... 0.350 0.155
Copper...................................... 1.96 1.03
Cyanide..................................... 0.299 0.124
Silver...................................... 0.423 0.175
------------------------------------------------------------------------

(i) Stationary casting contact cooling water—Subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals cast
by the
direct chill
method
---------------------------
Cadmium..................................... 0.367 0.162
Copper...................................... 2.05 1.08
Cyanide..................................... 0.313 0.130
Silver...................................... 0.443 0.184
------------------------------------------------------------------------

(k) Shot casting contact cooling water.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals shot
cast
---------------------------
Cadmium..................................... 0.125 0.055
Copper...................................... 0.698 0.367
Cyanide..................................... 0.107 0.044
Silver...................................... 0.151 0.0631
------------------------------------------------------------------------

(l) Wet air pollution control scrubber blowdown—Subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals and
base metal
pressure
bonded
---------------------------
Cadmium..................................... 0.029 0.013
Copper...................................... 0.159 0.084
Cyanide..................................... 0.024 0.010
Silver...................................... 0.034 0.014
------------------------------------------------------------------------

(n) Surface treatment spent baths.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals
surface
treated
---------------------------
Cadmium..................................... 0.033 0.015
Copper...................................... 0.183 0.097
Cyanide..................................... 0.028 0.012
Silver...................................... 0.040 0.017
------------------------------------------------------------------------

(o) Surface treatment rinse.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals
surface
treated
---------------------------
Cadmium..................................... 0.210 0.093
Copper...................................... 1.17 0.616
Cyanide..................................... 0.179 0.074
Silver...................................... 0.253 0.105
------------------------------------------------------------------------

(p) Alkaline cleaning spent baths.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals
alkaline
cleaned
---------------------------
Cadmium..................................... 0.021 0.009
Copper...................................... 0.114 0.060
Cyanide..................................... 0.018 0.007
Silver...................................... 0.025 0.010
------------------------------------------------------------------------

(q) Alkaline cleaning rinse.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals
alkaline
cleaned
---------------------------
Cadmium..................................... 0.381 0.168
Copper...................................... 2.13 1.12
Cyanide..................................... 0.325 0.135
Silver...................................... 0.459 0.191
------------------------------------------------------------------------

(r) Alkaline cleaning pre-bonding wastewater.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals and
base metal
cleaned
prior to
bonding
---------------------------
Cadmium..................................... 0.400 0.174
Copper...................................... 2.21 1.16
Cyanide..................................... 0.337 0.139
Silver...................................... 0.476 0.197
------------------------------------------------------------------------

(s) Tumbling or burnishing wastewater.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals
tumbled or
burnished
---------------------------
Cadmium..................................... 0.412 0.182
Copper...................................... 2.30 1.21
Cyanide..................................... 0.351 0.145
Silver...................................... 0.496 0.206
------------------------------------------------------------------------

(t) Sawing or grinding spent neat oils—Subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D_PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
precious
metals
sawed or
ground with
emulsions
-------------------------
Cadmium....................................... 0.032 0.014
Copper........................................ 0.178 0.094
Cyanide....................................... 0.027 0.011
Silver........................................ 0.038 0.016
------------------------------------------------------------------------

(v) Degreasing spent solvents—Subpart D—PSNS. There shall be no discharge of process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2886, Jan. 22, 1986]

§ 471.46 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
top
Subpart E—Refractory Metals Forming Subcategory
top
§ 471.50 Applicability; description of the refractory metals forming 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 refractory metals forming subcategory.

§ 471.51 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) Rolling spent neat oils and graphite based lubricants—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
rolled with
emulsions
---------------------------
Copper...................................... 0.815 0.429
Nickel...................................... 0.824 0.545
Fluoride.................................... 25.5 11.3
Molybdenum.................................. 2.84 1.47
Oil and grease.............................. 8.58 5.15
TSS......................................... 17.6 8.37
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(c) Drawing spent lubricants—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
extruded
---------------------------
Copper...................................... 2.26 1.19
Nickel...................................... 2.29 1.51
Fluoride.................................... 70.8 31.4
Molybdenum.................................. 7.87 4.07
Oil and grease.............................. 23.8 14.3
TSS......................................... 48.8 23.2
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(f) Forging spent lubricants—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
forged
refractory
metals
cooled with
water
---------------------------
Copper...................................... 0.614 0.323
Nickel...................................... 0.620 0.410
Fluoride.................................... 19.2 8.53
Molybdenum.................................. 2.14 1.11
Oil and grease.............................. 6.46 3.88
TSS......................................... 13.3 6.30
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(h) Equipment cleaning wastewater.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
formed
---------------------------
Copper...................................... 2.59 1.36
Nickel...................................... 2.61 1.73
Fluoride.................................... 80.9 35.9
Molybdenum.................................. 8.99 4.65
Oil and grease.............................. 27.2 16.3
TSS......................................... 55.8 26.5
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(i) Metal powder production wastewater.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
powder
produced
---------------------------
Copper...................................... 0.534 0.281
Nickel...................................... 0.540 0.357
Fluoride.................................... 16.70 7.42
Molybdenum.................................. 1.86 0.961
Oil and grease.............................. 5.62 3.37
TSS......................................... 11.5 5.48
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(j) Metal powder production floor wash wastewater—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(k) Metal powder pressing spent lubricants—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(l) Surface treatment spent baths.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
surface
treated
---------------------------
Copper...................................... 0.739 0.389
Nickel...................................... 0.747 0.494
Fluoride.................................... 23.2 10.3
Molybdenum.................................. 2.57 1.33
Oil and grease.............................. 7.78 4.68
TSS......................................... 16.0 7.59
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(m) Surface treatment rinse.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
surface
treated
-------------------------
Copper........................................ 230 121
Nickel........................................ 232 154
Fluoride...................................... 7,200 3,200
Molybdenum.................................... 800 414
Oil and grease................................ 2,420 1,450
TSS........................................... 4,960 2,360
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(n) Alkaline cleaning spent baths.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
alkaline
cleaned
---------------------------
Copper...................................... 0.635 0.334
Nickel...................................... 0.641 0.424
Fluoride.................................... 19.9 8.82
Molybdenum.................................. 2.21 1.14
Oil and grease.............................. 6.68 4.01
TSS......................................... 13.7 6.51
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(o) Alkaline cleaning rinse.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
alkaline
cleaned
-------------------------
Copper........................................ 1,550 816
Nickel........................................ 1,570 1,040
Fluoride...................................... 48,600 21,600
Molybdenum.................................... 5,400 2,790
Oil and grease................................ 16,300 9,790
TSS........................................... 33,500 15,900
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(p) Molten salt rinse.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
treated with
molten salt
---------------------------
Copper...................................... 12.1 6.33
Nickel...................................... 12.2 8.04
Fluoride.................................... 377 167
Molybdenum.................................. 41.9 21.7
Oil and grease.............................. 127 76.0
TSS......................................... 260 124
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(q) Tumbling or burnishing wastewater.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
tumbled or
burnished
---------------------------
Copper...................................... 23.8 12.5
Nickel...................................... 24.0 15.9
Fluoride.................................... 744 330
Molybdenum.................................. 82.7 42.8
Oil and grease.............................. 250 150
TSS......................................... 513 244
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
Within the range of 7.5 to 10.0 at all times.

(r) Sawing or grinding spent neat oils—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

(s) Sawing or grinding spent emulsions.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals sawed
or ground
with
emulsions
---------------------------
Copper...................................... 0.565 0.297
Nickel...................................... 0.570 0.377
Fluoride.................................... 17.7 7.84
Molybdenum.................................. 1.97 1.02
Oil and grease.............................. 5.94 3.57
TSS......................................... 12.2 5.79
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(t) Sawing or grinding contact cooling water.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals sawed
or ground
with contact
cooling
water
---------------------------
Copper...................................... 46.2 24.3
Nickel...................................... 46.7 30.9
Fluoride.................................... 1450 642
Molybdenum.................................. 161 83.1
Oil and grease.............................. 486 292
TSS......................................... 997 474
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(u) Sawing or grinding rinse.

Subpart E_BPT
------------------------------------------------------------------------
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
refractory
metals
rinsed
---------------------------
Copper...................................... 0.257 0.135
Nickel...................................... 0.259 0.172
Fluoride.................................... 8.03 3.57
Molybdenum.................................. 0.893 0.462
Oil and grease.............................. 2.70 1.62
TSS......................................... 5.54 2.63
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(v) Wet air pollution control scrubber blowdown.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals sawed
or ground,
surface
coated or
surface
treated
---------------------------
Copper...................................... 1.50 0.787
Nickel...................................... 1.51 1.00
Fluoride.................................... 46.8 20.8
Molybdenum.................................. 5.20 2.69
Oil and grease.............................. 15.8 9.45
TSS......................................... 32.3 15.4
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(w) Miscellaneous wastewater sources.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
formed
---------------------------
Copper...................................... 0.656 0.345
Nickel...................................... 0.663 0.438
Fluoride.................................... 20.6 9.11
Molybdenum.................................. 2.28 1.18
Oil and grease.............................. 6.9 4.14
TSS......................................... 14.2 6.73
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(x) Dye penetrant testing wastewater.

Subpart E_BPT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
tested
---------------------------
Copper...................................... 0.150 0.078
Nickel...................................... 0.150 0.099
Fluoride.................................... 4.60 2.00
Molybdenum.................................. 0.513 0.266
Oil and grease.............................. 1.60 0.930
TSS......................................... 3.20 1.50
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.5 to 10.0 at all times.

(y) Degreasing spent solvents—Subpart E—BPT. There shall be no discharge of process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2886, Jan. 22, 1986]

§ 471.52 Effluent limitations representating 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 and graphite based lubricants—Subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E-BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
rolled with
emulsions
---------------------------
Copper...................................... 0.549 0.262
Nickel...................................... 0.236 0.157
Fluoride.................................... 25.5 11.3
Molybdenum.................................. 2.16 0.957
------------------------------------------------------------------------

(c) Drawing spent lubricants—Subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(d) Extrusion spent lubricants—Subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(e) Extrusion press hydraulic fluid leakage.

Subpart E_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
refractory
metals
extruded
---------------------------
Copper...................................... 1.5 0.730
Nickel...................................... 0.650 0.440
Fluoride.................................... 71.000 31.0
Molybdenum.................................. 5.99 2.66
------------------------------------------------------------------------

(f) Forging spent lubricants—Subpart E—BAT. There shall be no discharge of process wastewater pollutants.

(g) Forging contact cooling water.

Subpart E_BAT
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(pounds per
million off-
pounds) of
forged
refractory
metals
cooled withwater (continued)