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 0.429Nickel...................................... 0.824 0.545Fluoride.................................... 25.5 11.3Molybdenum.................................. 2.84 1.47Oil and grease.............................. 8.58 5.15TSS......................................... 17.6 8.37pH.......................................... (\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 1.19Nickel...................................... 2.29 1.51Fluoride.................................... 70.8 31.4Molybdenum.................................. 7.87 4.07Oil and grease.............................. 23.8 14.3TSS......................................... 48.8 23.2pH.......................................... (\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 0.323Nickel...................................... 0.620 0.410Fluoride.................................... 19.2 8.53Molybdenum.................................. 2.14 1.11Oil and grease.............................. 6.46 3.88TSS......................................... 13.3 6.30pH.......................................... (\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 1.36Nickel...................................... 2.61 1.73Fluoride.................................... 80.9 35.9Molybdenum.................................. 8.99 4.65Oil and grease.............................. 27.2 16.3TSS......................................... 55.8 26.5pH.......................................... (\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 0.281Nickel...................................... 0.540 0.357Fluoride.................................... 16.70 7.42Molybdenum.................................. 1.86 0.961Oil and grease.............................. 5.62 3.37TSS......................................... 11.5 5.48pH.......................................... (\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 0.389Nickel...................................... 0.747 0.494Fluoride.................................... 23.2 10.3Molybdenum.................................. 2.57 1.33Oil and grease.............................. 7.78 4.68TSS......................................... 16.0 7.59pH.......................................... (\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 121Nickel........................................ 232 154Fluoride...................................... 7,200 3,200Molybdenum.................................... 800 414Oil and grease................................ 2,420 1,450TSS........................................... 4,960 2,360pH............................................ (\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 0.334Nickel...................................... 0.641 0.424Fluoride.................................... 19.9 8.82Molybdenum.................................. 2.21 1.14Oil and grease.............................. 6.68 4.01TSS......................................... 13.7 6.51pH.......................................... (\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 816Nickel........................................ 1,570 1,040Fluoride...................................... 48,600 21,600Molybdenum.................................... 5,400 2,790Oil and grease................................ 16,300 9,790TSS........................................... 33,500 15,900pH............................................ (\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 6.33Nickel...................................... 12.2 8.04Fluoride.................................... 377 167Molybdenum.................................. 41.9 21.7Oil and grease.............................. 127 76.0TSS......................................... 260 124pH.......................................... (\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 12.5Nickel...................................... 24.0 15.9Fluoride.................................... 744 330Molybdenum.................................. 82.7 42.8Oil and grease.............................. 250 150TSS......................................... 513 244pH.......................................... (\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 0.297Nickel...................................... 0.570 0.377Fluoride.................................... 17.7 7.84Molybdenum.................................. 1.97 1.02Oil and grease.............................. 5.94 3.57TSS......................................... 12.2 5.79pH.......................................... (\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 24.3Nickel...................................... 46.7 30.9Fluoride.................................... 1450 642Molybdenum.................................. 161 83.1Oil and grease.............................. 486 292TSS......................................... 997 474pH.......................................... (\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 0.135Nickel...................................... 0.259 0.172Fluoride.................................... 8.03 3.57Molybdenum.................................. 0.893 0.462Oil and grease.............................. 2.70 1.62TSS......................................... 5.54 2.63pH.......................................... (\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 0.787Nickel...................................... 1.51 1.00Fluoride.................................... 46.8 20.8Molybdenum.................................. 5.20 2.69Oil and grease.............................. 15.8 9.45TSS......................................... 32.3 15.4pH.......................................... (\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 0.345Nickel...................................... 0.663 0.438Fluoride.................................... 20.6 9.11Molybdenum.................................. 2.28 1.18Oil and grease.............................. 6.9 4.14TSS......................................... 14.2 6.73pH.......................................... (\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 0.078Nickel...................................... 0.150 0.099Fluoride.................................... 4.60 2.00Molybdenum.................................. 0.513 0.266Oil and grease.............................. 1.60 0.930TSS......................................... 3.20 1.50pH.......................................... (\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]