Title 40

SECTION 471.85

471.85 Pretreatment standards for new sources (PSNS).

§ 471.85 Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart 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 (PSNS). The mass of the wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils - subpart H - PSNS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions
Chromium 0.0005 0.0002
Copper 0.002 0.0009
Cyanide 0.0003 0.0001
Zinc 0.002 0.0006

(c) Rolling contact cooling water.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water
Chromium 0.020 0.008
Copper 0.069 0.033
Cyanide 0.011 0.004
Zinc 0.055 0.023

(d) Drawing spent emulsions.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions
Chromium 0.002 0.0009
Copper 0.008 0.004
Cyanide 0.001 0.0005
Zinc 0.006 0.003

(e) Direct chill casting contact cooling water.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method
Chromium 0.019 0.008
Copper 0.065 0.031
Cyanide 0.010 0.004
Zinc 0.052 0.021

(f) Stationary casting contact cooling water - subpart H - PSNS. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc heat treated
Chromium 0.029 0.012
Copper 0.098 0.047
Cyanide 0.016 0.006
Zinc 0.078 0.032

(h) Surface treatment spent baths.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc surface treated
Chromium 0.033 0.014
Copper 0.114 0.054
Cyanide 0.018 0.007
Zinc 0.091 0.038

(i) Surface treatment rinse.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc surface treated
Chromium 0.133 0.054
Copper 0.459 0.219
Cyanide 0.072 0.029
Zinc 0.365 0.151

(j) Alkaline cleaning spent baths.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned
Chromium 0.002 0.0006
Copper 0.005 0.002
Cyanide 0.0007 0.0003
Zinc 0.004 0.002

(k) Alkaline cleaning rinse.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned
Chromium 0.626 0.254
Copper 2.17 1.03
Cyanide 0.338 0.134
Zinc 1.73 0.710

(l) Sawing or grinding spent emulsions.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions
Chromium 0.009 0.004
Copper 0.031 0.015
Cyanide 0.005 0.002
Zinc 0.025 0.010

(m) Electrocoating rinse.

Subpart H - PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/off-kg (pounds per million off-pounds) of zinc electrocoated
Chromium 0.085 0.035
Copper 0.293 0.140
Cyanide 0.046 0.019
Zinc 0.234 0.096

(n) Decreasing spent solvents - subpart H - PSNS. There shall be no discharge of process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]