Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
All TitlesTitle 40Chapter IPart 471Subpart E - Subpart E—Refractory Metals Forming Subcategory
View all text of Subpart E [§ 471.50 - § 471.56]
§ 471.54 - Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in refractory metals forming process wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils and graphite based lubricants—subpart E—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart E—PSES

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
Copper0.8150.429
Nickel0.8240.545
Fluoride25.511.4
Molybdenum2.841.47

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

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

(e) Extrusion press hydraulic fluid leakage.

Subpart E—PSES

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
Copper2.261.19
Nickel2.291.51
Fluoride70.831.4
Molybdenum7.874.07

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

(g) Forging contact cooling water.

Subpart E—PSES

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
Copper0.0620.033
Nickel0.0620.041
Fluoride1.920.853
Molybdenum0.2140.111

(h) Equipment cleaning wastewater.

Subpart E—PSES

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
Copper0.2590.136
Nickel0.2610.173
Fluoride8.093.59
Molybdenum0.8990.465

(i) Metal powder production wastewater.

Subpart E—PSES

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
Copper0.5340.281
Nickel0.5400.357
Fluoride16.77.42
Molybdenum1.860.961

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

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

(l) Surface treatment spent baths.

Subpart E—PSES

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
Copper0.7390.389
Nickel0.7470.494
Fluoride23.210.3
Molybdenum2.571.33

(m) Surface treatment rinse.

Subpart E—PSES

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
Copper23.012.1
Nickel23.315.4
Fluoride720320
Molybdenum80.041.4

(n) Alkaline cleaning spent baths.

Subpart E—PSES

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
Copper0.6350.334
Nickel0.6420.424
Fluoride19.98.82
Molybdenum2.211.14

(o) Alkaline cleaning rinse.

Subpart E—PSES

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
Copper15.58.16
Nickel15.710.4
Fluoride486.216.0
Molybdenum54.027.9

(p) Molten salt rinse.

Subpart E—PSES

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
Copper1.200.633
Nickel1.220.804
Fluoride37.716.7
Molybdenum4.192.17

(q) Tumbling or burnishing wastewater.

Subpart E—PSES

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
Copper2.381.25
Nickel2.401.59
Fluoride74.433.0
Molybdenum8.274.28

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

(s) Sawing or grinding spent emulsions.

Subpart E—PSES

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
Copper0.5650.297
Nickel0.5700.377
Fluoride17.77.84
Molybdenum1.971.02

(t) Sawing or grinding contact cooling water.

Subpart E—PSES

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
Copper4.622.43
Nickel4.673.09
Fluoride145.64.2
Molybdenum16.18.31

(u) Sawing or grinding rinse.

Subpart E—PSES

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
Copper0.0260.014
Nickel0.0260.017
Fluoride0.8040.357
Molybdenum0.0890.046

(v) Wet air pollution control blowdown.

Subpart E—PSES

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, surface coated or surface treated
Copper1.500.787
Nickel1.511.00
Fluoride46.920.8
Molybdenum5.202.69

(w) Miscellaneous wastewater sources.

Subpart E—PSES

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
Copper0.6560.345
Nickel0.6630.438
Fluoride20.69.11
Molybdenum2.281.18

(x) Dye penetrant testing wastewater.

Subpart E—PSES

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
Copper0.1480.078
Nickel0.1490.099
Fluoride4.622.05
Molybdenum0.5130.266

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

[50 FR 34270, Aug. 23, 1985; 51 FR 2887, Jan. 22, 1986]
authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307, 308, and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972 as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311,1314,c,e,and, 1316(b) andc,and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 50 FR 34270, Aug. 23, 1985, unless otherwise noted.
cite as: 40 CFR 471.54
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