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

Subpart D—NSPS

Open Table
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
Metal preparation Coating operation Metal preparation Coating operation
    Metric units—mg/m2 of area processed or coated
Chromium 6.23 0.46 2.52 0.19
Lead 1.69 0.13 1.52 0.11
Nickel 9.25 0.69 6.23 0.47
Zinc 17.16 1.29 7.07 0.53
Aluminum 50.97 3.82 20.86 1.56
Iron 20.69 1.55 10.60 0.79
Oil and grease 168.23 12.60 168.23 12.60
TSS 252.35 18.91 201.88 15.12
pH (1) (1) (1) (1)
    English units—pounds per 1 million ft2 of area processed or coated
Chromium 1.28 0.10 0.52 0.04
Lead 0.35 0.03 0.31 0.03
Nickel 1.90 0.14 1.28 0.10
Zinc 3.52 0.27 1.45 0.11
Aluminum 10.44 0.78 4.27 0.32
Iron 4.24 0.32 2.17 0.16
Oil and grease 34.46 2.58 34.46 2.58
TSS 51.69 3.87 41.35 3.10
pH (1) (1) (1) (1)

1Within the range 7.5 to 10.0 at all times.

[47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36545, Sept. 6, 1985]


Tried the LawStack mobile app?

Join thousands and try LawStack mobile for FREE today.

  • Carry the law offline, wherever you go.
  • Download CFR, USC, rules, and state law to your mobile device.