SUBPART - Subpart H—Zinc Forming Subcategory

Collapse to view only § 471.86 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]

§ 471.80 - Applicability; description of the zinc forming subcategory.
§ 471.81 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§ 471.82 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
§ 471.83 - New source performance standards (NSPS).
§ 471.84 - Pretreatment standards for existing sources (PSES). [Reserved]
§ 471.85 - Pretreatment standards for new sources (PSNS).
§ 471.86 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]

§ 471.80 - Applicability; description of the zinc forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the process operations of the zinc forming subcategory.

§ 471.81 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

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 for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

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

(b) Rolling spent emulsions.

Subpart H—BPT

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	0.0006	0.0003	Copper	0.003	0.002	Cyanide	0.0004	0.0002	Zinc	0.002	0.0009	Oil and grease	0.028	0.017	TSS	0.057	0.027	pH	( 1)	( 1)

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

Subpart H—BPT

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	0.236	0.0097	Copper	1.02	0.536	Cyanide	0.156	0.065	Zinc	0.783	0.327	Oil and grease	10.7	6.43	TSS	22.0	10.5	pH	( 1)	( 1)

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

(d) Drawing spent emulsions.

Subpart H—BPT

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	0.003	0.001	Copper	0.011	0.006	Cyanide	0.002	0.0007	Zinc	0.009	0.004	Oil and grease	0.116	0.070	TSS	0.238	0.113	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—BPT

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	0.222	0.091	Copper	0.960	0.505	Cyanide	0.147	0.061	Zinc	0.738	0.308	Oil and grease	10.1	6.06	TSS	20.7	9.85	pH	( 1)	( 1)

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

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

(g) Heat treatment contact cooling water.

Subpart H—BPT

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	0.336	0.138	Copper	1.45	0.763	Cyanide	0.221	0.092	Zinc	1.12	0.466	Oil and grease	15.3	9.16	TSS	31.3	14.9	pH	( 1)	( 1)

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

(h) Surface treatment spent baths.

Subpart H—BPT

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	0.039	0.016	Copper	0.169	0.089	Cyanide	0.026	0.011	Zinc	0.130	0.054	Oil and grease	1.78	1.07	TSS	3.64	1.73	pH	( 1)	( 1)

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

(i) Surface treatment rinse.

Subpart H—BPT

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	1.58	0.645	Copper	6.80	3.58	Cyanide	1.04	0.430	Zinc	5.23	2.19	Oil and grease	71.6	43.0	TSS	147	69.8	pH	( 1)	( 1)

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

(j) Alkaline cleaning spent baths.

Subpart H—BPT

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	0.0007	Copper	0.007	0.004	Cyanide	0.001	0.0004	Zinc	0.005	0.002	Oil and grease	0.071	0.043	TSS	0.146	0.069	pH	( 1)	( 1)

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

(k) Alkaline cleaning rinse.

Subpart H—BPT

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	0.744	0.304	Copper	3.21	1.69	Cyanide	0.490	0.203	Zinc	2.47	1.03	Oil and grease	33.8	20.3	TSS	69.3	33.0	pH	( 1)	( 1)

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

(l) Sawing or grinding spent emulsions.

Subpart H—BPT

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	0.011	0.005	Copper	0.045	0.024	Cyanide	0.007	0.003	Zinc	0.035	0.015	Oil and grease	0.476	0.286	TSS	0.976	0.464	pH	( 1)	( 1)

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

(m) Electrocoating rinse.

Subpart H—BPT

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	1.01	0.412	Copper	4.35	2.29	Cyanide	0.664	0.275	Zinc	3.35	1.40	Oil and grease	45.8	27.5	TSS	93.9	44.7	pH	( 1)	( 1)

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

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

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

§ 471.82 - 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) Rolling spent neat oils—subpart H—BAT. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart H—BAT

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

Subpart H—BAT

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	0.033	Cyanide	0.011	0.004	Zinc	0.055	0.023

(d) Drawing spent emulsions.

Subpart H—BAT

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—BAT

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—BAT. There shall be no discharge of process wastewater pollutants.

(g) Heat treatment contact cooling water.

Subpart H—BAT

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—BAT

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—BAT

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	0.457	0.219	Cyanide	0.072	0.029	Zinc	0.365	0.151

(j) Alkaline cleaning spent baths.

Subpart H—BAT

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—BAT

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	0.135	Zinc	1.73	0.710

(l) Sawing or grinding spent emulsions.

Subpart H—BAT

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—BAT

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) Degreasing spent solvents—subpart H—BAT. There shall be no discharge or process wastewater pollutants.

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

§ 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]

§ 471.84 - Pretreatment standards for existing sources (PSES). [Reserved]

§ 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

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]

§ 471.86 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]