1. Regulations
  2. title 40
  3. chapter I-i31
  4. part 471
  5. subpart J
  6. § 471.105

View all text of Subpart J [§ 471.100 - § 471.106]

§ 471.105 - Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subject which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in metal powders process wastewater introduced into a POTW shall not exceed the following values:

(a) Metal powder production atomization wastewater.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder wet atomized Copper9.585.04 Cyanide1.460.605 Lead2.121.01

(b) Sizing spent emulsions.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder sized Copper0.0280.015 Cyanide0.0040.002 Lead0.0060.003

(c) Oil-resin impregnation wastewater—subpart J—PSNS. There shall be no discharge of process wastewater pollutants.

(d) Steam treatment wet air pollution control scrubber blowdown.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder metallurgy parts steam treated Copper0.1510.079 Cyanide0.0230.010 Lead0.0330.016

(e) Tumbling, burnishing and cleaning wastewater.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder metallurgy parts tumbled, burnished, or cleaned Copper0.8360.440 Cyanide0.1280.053 Lead0.1850.088

(f) Sawing or grinding spent neat oils—subpart J—PSNS. There shall be no discharge of process wastewater pollutants.

(g) Sawing or grinding spent emulsions.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder metallurgy parts sawed or ground with emulsions Copper0.0350.018 Cyanide0.0050.002 Lead0.0080.004

(h) Sawing or grinding contact cooling water.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder sawed or ground with contact cooling water Copper3.081.620 Cyanide0.4700.195 Lead0.6810.324

(i) Hot pressing contact cooling water.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder cooled after pressing Copper1.670.880 Cyanide0.2550.106 Lead0.3700.176

(j) Mixing wet air pollution control scrubber blowdown.

Subpart J—PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of powder mixed Copper15.07.90 Cyanide2.290.948 Lead3.321.58

(k) Degreasing spent solvents—subpart J—PSNS. There shall be no discharge of process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2889, 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(b), (c), (e), and (g), 1316(b) and (c), and 1361; 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 471.105