40 C.F.R. § 471.102

Current through September 30, 2024

Section 471.102 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)

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)Metal powder production atomization wastewater.

Subpart J-BAT

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
Copper	9.58	5.04
Cyanide	1.46	0.605
Lead	2.12	1.01

(b)Sizing spent emulsions.

Subpart J-BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/off-kg (pounds per million off-pounds) or powder sized
Copper	0.028	0.015
Cyanide	0.004	0.002
Lead	0.006	0.003

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

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

Subpart J-BAT

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
Copper	1.51	0.792
Cyanide	0.230	0.095
Lead	0.333	0.159

(e)Tumbling, burnishing and cleaning wastewater.

Subpart J-BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/off-kg (pounds per million off-pounds) or powder metallurgy parts tumbled, burnished, or cleaned
Copper	8.36	4.40
Cyanide	1.28	0.528
Lead	1.850	0.880

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

(g)Sawing or grinding spent emulsions.

Subpart J-BAT

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
Copper	0.0035	0.018
Cyanide	0.005	0.002
Lead	0.008	0.004

(h)Sawing or grinding contact cooling water.

Subpart J-BAT

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
Copper	3.08	1.62
Cyanide	0.470	0.195
Lead	0.681	0.324

(i)Hot pressing contact cooling water.

Subpart J-BAT

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
Copper	16.7	8.80
Cyanide	2.55	1.06
Lead	3.70	1.760

(j)Mixing wet air pollution control scrubber blowdown.

Subpart J-BAT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/off-kg (pounds per million off-pounds) of powder mixed
Copper	15.0	7.90
Cyanide	2.29	0.948
Lead	3.32	1.58

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

40 C.F.R. §471.102

50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986