40 C.F.R. § 468.11

Current through September 30, 2024

Section 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)

¹Within 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)

¹Within 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)

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

40 C.F.R. § 468.11