40 CFR 471.83 - New source performance standards (NSPS).

View all text of Subpart H [§ 471.80 - § 471.86]

§ 471.83 - New source performance standards (NSPS).

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

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

(b) Rolling spent emulsions.

Subpart H—NSPS

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	Oil and grease	0.014	0.014	TSS	0.021	0.017	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

Subpart H—NSPS

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	0.009	Copper	0.069	0.037	Cyanide	0.011	0.004	Zinc	0.055	0.023	Oil and grease	0.536	0.536	TSS	0.804	0.643	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(d) Drawing spent emulsions.

Subpart H—NSPS

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	Oil and grease	0.058	0.058	TSS	0.087	0.070	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times

(e) Direct chill casting contact cooling water.

Subpart H—NSPS

Pollutant or pollutant property	Maximum for any one 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	Oil and grease	0.505	0.505	TSS	0.758	0.606	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

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

(g) Heat treatment contact cooling water.

Subpart H—NSPS

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	Oil and grease	0.763	0.763	TSS	1.15	0.916	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(h) Surface treatment spent baths.

Subpart H—NSPS

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	Oil and grease	0.887	0.887	TSS	1.33	1.07	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(i) Surface treatment rinse.

Subpart H—NSPS

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	Oil and grease	3.58	3.58	TSS	5.37	4.30	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(j) Alkaline cleaning spent baths.

Subpart H—NSPS

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	Oil and grease	0.036	0.036	TSS	0.054	0.043	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(k) Alkaline cleaning rinse.

Subpart H—NSPS

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	0.259	Copper	2.17	1.03	Cyanide	0.338	0.135	Zinc	1.73	0.710	Oil and grease	16.9	16.9	TSS	25.4	20.3	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times.

(l) Sawing or grinding spent emulsions.

Subpart H—NSPS

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	Oil and grease	0.235	0.235	TSS	0.357	0.286	pH	( 1)	( 1)

1Within the range of 7.5 to 10.0 at all times.

(m) Electrocoating rinse.

Subpart H—NSPS

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	Oil and grease	2.29	2.29	TSS	3.44	2.75	pH	( 1)	( 1)

1 Within the range of 7.5 to 10.0 at all times

(n) Degreasing spent solvents—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.

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