Statutes, codes, and regulations
Code of Federal Regulations
Title 40 - PROTECTION OF ENVIRONMENTChapter I - ENVIRONMENTAL PROTECTION AGENCYSubchapter N - EFFLUENT GUIDELINES AND STANDARDSPart 471 - NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY
Subpart E - REFRACTORY METALS FORMING SUBCATEGORY
Section 471.53 - New source performance standards (NSPS)

40 C.F.R. § 471.53

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Current through May 31, 2024
Section 471.53 - New source performance standards (NSPS)

Any new source subject to this subpart must achieve the following new source performance standards (NSPS):

(a)Rolling spent neat oils and graphite based lubricants-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.
(b)Rolling spent emulsions.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions
Copper0.5490.262
Nickel0.2360.159
Fluoride25.511.3
Molybdenum2.160.957
Oil and grease4.294.29
TSS6.445.15
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(c)Drawing spent lubricants-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.
(d)Extrusion spent lubricants-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.
(e)Extrusion press hydraulic fluid leakage.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals extruded
Copper1.530.726
Nickel0.6550.441
Fluoride70.831.4
Molybdenum5.992.66
Oil and grease11.911.9
TSS17.914.3
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(f)Forging spent lubricants-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.
(g)Forging contact cooling water.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of forged refractory metals cooled with water
Copper0.0410.020
Nickel0.0180.012
Fluoride1.920.853
Molybdenum0.1630.072
Oil and grease0.3230.323
TSS0.4850.388
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(h)Equipment cleaning wastewater.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals formed
Copper0.1740.083
Nickel0.0750.051
Fluoride8.093.59
Molybdenum0.6840.303
Oil and grease1.361.36
TSS2.041.63
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(i)Metal powder production wastewater.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals powder produced
Copper0.3600.172
Nickel0.1550.104
Fluoride16.77.42
Molybdenum1.420.627
Oil and grease2.812.81
TSS4.223.37
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-NSPS. There shall be no discharge of process wastewater pollutants.
(k)Metal powder pressing spent lubricants-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.
(l)Surface treatment spent baths.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals surface treated
Copper0.4980.237
Nickel0.2140.144
Fluoride23.210.3
Molybdenum1.960.868
Oil and grease3.893.89
TSS5.844.67
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(m)Surface treatment rinse.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals surface treated
Copper15.57.38
Nickel6.664.48
Fluoride720320
Molybdenum69.927.0
Oil and grease121121
TSS182145
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(n)Alkaline cleaning spent baths.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned
Copper0.4280.204
Nickel.1840.124
Fluoride19.98.82
Molybdenum1.680.745
Oil and grease3.343.34
TSS5.014.01
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(o)Alkaline cleaning rinse.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals alkaline cleaned
Copper10.54.98
Nickel4.493.02
Fluoride486216
Molybdenum41.118.2
Oil and grease81.681.6
TSS12397.9
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(p)Molten salt rinse.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals treated with molten salt
Copper0.8100.386
Nickel0.3480.234
Fluoride37.716.7
Molybdenum3.191.41
Oil and grease6.336.33
TSS9.57.6
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(q)Tumbling or burnishing wastewater.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals tumbled or burnished
Copper1.600.763
Nickel0.6880.463
Fluoride74.433.0
Molybdenum6.292.79
Oil and grease12.512.5
TSS18.815.0
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(r)Sawing or grinding spent neat oils-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.
(s)Sawing or grinding spent emulsions.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with emulsions
Copper0.3800.181
Nickel0.1640.110
Fluoride17.77.84
Molybdenum1.50.663
Oil and grease2.972.97
TSS4.463.57
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-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals sawed or ground with contact cooling water
Copper3.111.48
Nickel1.340.899
Fluoride14564.2
Molybdenum12.25.42
Oil and grease24.324.3
TSS36.529.2
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(u)Sawing or grinding rinse.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of sawed or ground refractory metals rinsed
Copper0.0180.009
Nickel0.0080.005
Fluoride0.8030.357
Molybdenum0.0680.030
Oil and grease0.1350.135
TSS0.2030.162
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-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals sawed, ground, surface coated or surface treated
Copper1.010.480
Nickel0.4330.291
Fluoride46.820.8
Molybdenum3.961.76
Oil and grease7.877.87
TSS11.89.45
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(w)Miscellaneous wastewater sources.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals formed
Copper0.4420.211
Nickel0.1900.128
Fluoride20.69.11
Molybdenum1.740.770
Oil and grease3.453.45
TSS5.184.14
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(x)Dye penetrant testing wastewater.

Subpart E-NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of refractory metals product tested
Copper0.1000.048
Nickel0.0430.029
Fluoride4.622.05
Molybdenum0.3910.173
Oil and grease0.7760.776
TSS1.170.931
pH(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

(y)Degreasing spent solvents-subpart E-NSPS. There shall be no discharge of process wastewater pollutants.

40 C.F.R. §471.53

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