40 CFR 468.11 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

View all text of Subpart A [§ 468.10 - § 468.16]

§ 468.11 - 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 representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:

(a) Subpart A—Hot Rolling Spent Lubricant BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy hot rolled			English units—pounds per 1,000,000 off-pounds of copper or copper alloy hot rolled		Chromium	0.045	0.018	Copper	0.195	0.103	Lead	0.015	0.013	Nickel	0.197	0.130	Zinc	0.150	0.062	Oil and grease	2.060	1.236	TSS	4.223	2.008	pH	( 1)	( 1)

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

(b) Subpart A—Cold Rolling Spent Lubricant BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy cold rolled			English units—pounds per 1,000,000 off-pounds of copper or copper alloy cold rolled		Chromium	0.166	0.068	Copper	0.720	0.379	Lead	0.056	0.049	Nickel	0.727	0.481	Zinc	0.553	0.231	Oil and grease	7.580	4.548	TSS	15.539	7.390	pH	( 1)	( 1)

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

(c) Subpart A—Drawing Spent Lubricant BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy drawn			English units—pounds per 1,000,000 off-pounds of copper or copper alloy drawn		Chromium	0.037	0.015	Copper	0.161	0.085	Lead	0.012	0.011	Nickel	0.163	0.107	Zinc	0.124	0.051	Oil and grease	1.700	1.020	TSS	3.485	1.657	pH	( 1)	( 1)

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

(d) Subpart A—Solution Heat Treatment BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy heat treated			English units—pounds per 1,000,000 off-pounds of copper or copper alloy heat treated		Chromium	1.118	0.457	Copper	4.827	2.541	Lead	0.381	0.330	Nickel	4.878	3.227	Zinc	3.709	1.550	Oil and grease	50.820	30.492	TSS	104.181	49.549	pH	( 1)	( 1)

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

(e) Subpart A—Extrusion Heat Treatment BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy heat treated on an extrusion press			English units—pounds per 1,000,000 off-pounds of copper or copper alloy heat treated on an extrusion press		Chromium	0.00088	0.00036	Copper	0.003	0.002	Lead	0.0003	0.00026	Nickel	0.003	0.002	Zinc	0.002	0.001	Oil and grease	0.040	0.024	TSS	0.082	0.039	pH	( 1)	( 1)

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

(f) Subpart A—Annealing With Water BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper annealed with water			English units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with water		Chromium	2.493	1.020	Copper	10.767	5.667	Lead	0.850	0.736	Nickel	10.880	7.197	Zinc	8.273	3.456	Oil and grease	113.340	68.004	TSS	232.347	110.506	pH	( 1)	( 1)

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

(g) Subpart A—Annealing With Oil BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy annealed with oil			English units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with oil		Chromium	0	0	Copper	0	0	Lead	0	0	Nickel	0	0	Zinc	0	0	Oil and grease	0	0	TSS	0	0	pH	( 1)	( 1)

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

(h) Subpart A—Alkaline Cleaning Rinse BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy alkaline cleaned			English units—pounds per 1,000,000 off-pounds of copper or copper alloy alkaline cleaned		Chromium	1.854	0.758	Copper	8.006	4.214	Lead	0.632	0.547	Nickel	8.090	5.351	Zinc	6.152	2.570	Oil and grease	84.280	50.568	TSS	172.774	82.173	pH	( 1)	( 1)

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

(i) Subpart A—Alkaline Cleaning Rinse for Forged Parts BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy forged parts alkaline cleaned			English units—pounds per 1,000,000 off-pounds of copper or copper alloy forged parts alkaline cleaned		Chromium	5.562	2.275	Copper	24.019	12.642	Lead	1.896	1.643	Nickel	24.272	16.055	Zinc	18.457	7.711	Oil and grease	252.840	151.704	TSS	518.322	246.519	pH	( 1)	( 1)

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

(j) Subpart A—Alkaline Cleaning Bath BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy parts alkaline cleaned			English units—pounds per 1,000,000 off-pounds of copper or copper alloy forged parts alkaline cleaned		Chromium	0.020	0.0084	Copper	0.089	0.046	Lead	0.0070	0.0060	Nickel	0.089	0.059	Zinc	0.068	0.028	Oil and grease	0.93	0.56	TSS	1.91	0.91	pH	( 1)	( 1)

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

(k) Subpart A—Pickling Rinse BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy pickled			English units—pounds per/1,000,000 off-pounds of copper or copper alloy pickled		Chromium	1.593	0.651	Copper	6.881	3.622	Lead	0.543	0.470	Nickel	6.954	4.599	Zinc	5.288	2.209	Oil and grease	72.440	43.464	TSS	148.502	70.629	pH	( 1)	( 1)

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

(l) Subpart A—Pickling Rinse for Forged Parts BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy forged parts pickled			English units—pounds per/1,000,000 off-pounds of copper or copper alloy forged parts pickled		romium	1.723	0.705	Copper	7.444	3.918	Lead	0.587	0.509	Nickel	7.522	4.975	Zinc	5.720	2.389	Oil and grease	78.360	47.016	TSS	160.638	76.401	pH	( 1)	( 1)

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

(m) Subpart A—Pickling Bath BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy pickled			English units—pounds per 1,000,000 off-pounds of copper or copper alloy pickle		Chromium	0.051	0.020	Copper	0.220	0.116	Lead	0.017	0.015	Nickel	0.222	0.147	Zinc	0.169	0.070	Oil and grease	2.320	1.392	TSS	4.756	2.262	pH	( 1)	( 1)

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

(n) Subpart A—Pickling Fume Scrubber BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy pickled			English units—pounds per 1,000,000 off-pounds of copper or copper alloy pickled		Chromium	0.275	0.112	Copper	1.189	0.626	Lead	0.093	0.081	Nickel	1.201	0.795	Zinc	0.913	0.381	Oil and grease	12.520	7.512	TSS	25.666	12.207	pH	( 1)	( 1)

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

(o) Subpart A—Tumbling or Burnishing BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy tumbled or burnished			English units—pounds per 1,000,000 off-pounds of copper or copper alloy tumbled or burnished		Chromium	0.256	0.104	Copper	1.107	0.583	Lead	0.087	0.075	Nickel	1.119	0.740	Zinc	0.851	0.355	Oil and grease	11.660	6.996	TSS	23.903	11.368	pH	( 1)	( 1)

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

(p) Subpart A—Surface Coating BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy surface coated			English units—pounds per 1,000,000 off-pounds of copper or copper alloy surface coated		Chromium	0.326	0.133	Copper	1.411	0.743	Lead	0.111	0.096	Nickel	1.426	0.943	Zinc	1.084	0.453	Oil and grease	14.680	8.916	TSS	30.463	14.488	ph	( 1)	( 1)

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

(q) Subpart A—Miscellaneous Waste Streams BPT Effluent Limitations.

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/off-kg of copper or copper alloy formed			English units—pounds per 1,000,000 off-pounds of copper or copper alloy formed		Chromium	0.009	0.003	Copper	0.041	0.021	Lead	0.003	0.002	Nickel	0.041	0.027	Zinc	0.031	0.013	Oil and grease	0.436	0.261	TSS	0.893	0.425	pH	( 1)	( 1)

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