1. Regulations
  2. title 40
  3. chapter I-i31
  4. part 468
  5. subpart A
  6. § 468.10

Collapse to view only § 468.10 - Applicability; description of the copper forming subcategory.

§ 468.10 - Applicability; description of the copper forming subcategory.

This subpart applies to discharges of pollutants to waters of the United States, and introduction of pollutants into publicly owned treatment works from the forming of copper and copper alloys except beryllium copper alloys.

[51 FR 7571, Mar. 5, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.10

§ 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 Chromium0.0450.018 Copper0.1950.103 Lead0.0150.013 Nickel0.1970.130 Zinc0.1500.062 Oil and grease2.0601.236 TSS4.2232.008 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 Chromium0.1660.068 Copper0.7200.379 Lead0.0560.049 Nickel0.7270.481 Zinc0.5530.231 Oil and grease7.5804.548 TSS15.5397.390 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 Chromium0.0370.015 Copper0.1610.085 Lead0.0120.011 Nickel0.1630.107 Zinc0.1240.051 Oil and grease1.7001.020 TSS3.4851.657 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 Chromium1.1180.457 Copper4.8272.541 Lead0.3810.330 Nickel4.8783.227 Zinc3.7091.550 Oil and grease50.82030.492 TSS104.18149.549 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 Chromium0.000880.00036 Copper0.0030.002 Lead0.00030.00026 Nickel0.0030.002 Zinc0.0020.001 Oil and grease0.0400.024 TSS0.0820.039 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 Chromium2.4931.020 Copper10.7675.667 Lead0.8500.736 Nickel10.8807.197 Zinc8.2733.456 Oil and grease113.34068.004 TSS232.347110.506 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 Chromium00 Copper00 Lead00 Nickel00 Zinc00 Oil and grease00 TSS00 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 Chromium1.8540.758 Copper8.0064.214 Lead0.6320.547 Nickel8.0905.351 Zinc6.1522.570 Oil and grease84.28050.568 TSS172.77482.173 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 Chromium5.5622.275 Copper24.01912.642 Lead1.8961.643 Nickel24.27216.055 Zinc18.4577.711 Oil and grease252.840151.704 TSS518.322246.519 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 Chromium0.0200.0084 Copper0.0890.046 Lead0.00700.0060 Nickel0.0890.059 Zinc0.0680.028 Oil and grease0.930.56 TSS1.910.91 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 Chromium1.5930.651 Copper6.8813.622 Lead0.5430.470 Nickel6.9544.599 Zinc5.2882.209 Oil and grease72.44043.464 TSS148.50270.629 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 romium1.7230.705 Copper7.4443.918 Lead0.5870.509 Nickel7.5224.975 Zinc5.7202.389 Oil and grease78.36047.016 TSS160.63876.401 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 Chromium0.0510.020 Copper0.2200.116 Lead0.0170.015 Nickel0.2220.147 Zinc0.1690.070 Oil and grease2.3201.392 TSS4.7562.262 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 Chromium0.2750.112 Copper1.1890.626 Lead0.0930.081 Nickel1.2010.795 Zinc0.9130.381 Oil and grease12.5207.512 TSS25.66612.207 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 Chromium0.2560.104 Copper1.1070.583 Lead0.0870.075 Nickel1.1190.740 Zinc0.8510.355 Oil and grease11.6606.996 TSS23.90311.368 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 Chromium0.3260.133 Copper1.4110.743 Lead0.1110.096 Nickel1.4260.943 Zinc1.0840.453 Oil and grease14.6808.916 TSS30.46314.488 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 Chromium0.0090.003 Copper0.0410.021 Lead0.0030.002 Nickel0.0410.027 Zinc0.0310.013 Oil and grease0.4360.261 TSS0.8930.425 pH( 1)( 1)

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

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.11

§ 468.12 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) Subpart A—Hot Rolling Spent Lubricant BAT 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 Chromium0.0450.018 Copper0.1950.103 Lead0.0150.013 Nickel0.1970.130 Zinc0.1500.062

(b) Subpart A—Cold Rolling Spent Lubricant BAT 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 Chromium0.1660.068 Copper0.7200.379 Lead0.0560.049 Nickel0.7270.481 Zinc0.5530.231

(c) Subpart A—Drawing Spent Lubricant BAT 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 Chromium0.0370.015 Copper0.1610.085 Lead0.0120.011 Nickel0.1630.107 Zinc0.1240.051

(d) Subpart A—Solution Heat Treatment BAT 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 Chromium0.2840.116 Copper1.2270.646 Lead0.0960.083 Nickel1.2400.820 Zinc0.9430.394

(e) Subpart A—Extrusion Heat Treatment BAT 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 Chromium0.000880.00036 Copper0.0030.0020 Lead0.00030.00026 Nickel0.0030.002 Zinc0.0020.001

(f) Subpart A—Annealing with Water BAT 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 water English Units—pounds per/1,000,000 off-pounds of copper or copper alloy annealed with water Chromium0.5450.223 Copper2.3561.240 Lead0.1860.161 Nickel2.3801.574 Zinc1.8100.756

(g) Subpart A—Annealing with Oil BAT 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 Chromium00 Copper00 Lead00 Nickel00 Zinc00

(h) Subpart A—Alkaline Cleaning Rinse BAT 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 Chromium1.8540.758 Copper8.0064.214 Lead0.6320.547 Nickel8.0905.351 Zinc6.1522.570

(i) Subpart A—Alkaline Cleaning Rinse for Forged Parts BAT 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 Chromium5.5622.275 Copper24.01912.642 Lead1.8961.643 Nickel24.27216.055 Zinc18.4577.711

(j) Subpart A—Alkaline Cleaning Bath BAT 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 Chromium0.0200.0084 Copper0.0880.046 Lead0.00700.0060 Nickel0.0890.059 Zinc0.0680.028

(k) Subpart A—Pickling Rinse BAT 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 Chromium0.5740.235 Copper2.4811.306 Lead0.1950.169 Nickel2.5071.658 Zinc1.9060.796

(l) Subpart A—Pickling Rinse for Forged Parts BAT 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 Chromium1.7230.705 Copper7.4443.918 Lead0.5870.509 Nickel7.5224.975 Zinc5.7202.389

(m) Subpart A—Pickling Bath BAT 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 Chromium0.0510.020 Copper0.2200.116 Lead0.0170.015 Nickel0.2220.147 Zinc0.1690.070

(n) Subpart A—Pickling Fume Scrubber BAT 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 Chromium0.2750.112 Copper1.1890.626 Lead0.0930.081 Nickel1.2010.795 Zinc0.9130.381

(o) Subpart A—Tumbling or Burnishing BAT 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—pound per 1,000,000 off-pounds of copper or copper alloy tumbled or burnished Chromium0.2560.104 Copper1.1070.583 Lead0.0870.075 Nickel1.1190.740 Zinc0.8510.355

(p) Subpart A—Surface Coating BAT 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—pound per 1,000,000 off-pounds of copper or copper alloy surface coated Chromium0.3260.133 Copper1.4110.743 Lead0.1110.096 Nickel1.4260.943 Zinc1.0840.453

(q) Subpart A—Miscellaneous Waste Streams BAT 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 Chromium0.0090.003 Copper0.0410.021 Lead0.0030.002 Nickel0.0410.027 Zinc0.0310.013

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.12

§ 468.13 - New source performance standards (NSPS).

The following standards of performance establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a new source subject to the provisions of this subpart:

(a) Subpart A—Hot Rolling Spent Lubricant NSPS.

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 Chromium0.0380.015 Copper0.1310.062 Lead0.0100.0092 Nickel0.0560.038 Zinc0.1050.043 Oil and grease1.0301.030 TSS1.5451.236 pH( 1)( 1)

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

(b) Subpart A—Cold Rolling Spent Lubricant NSPS.

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 Chromium0.1400.056 Copper0.4850.231 Lead0.0370.034 Nickel0.2080.140 Zinc0.3860.159 Oil and grease3.7903.790 TSS5.6854.548 pH( 1)( 1)

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

(c) Subpart A—Drawing Spent Lubricant NSPS.

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 Chromium0.0310.012 Copper0.1080.051 Lead0.00850.0076 Nickel0.0460.031 Zinc0.0860.035 Oil and grease0.850.85 TSS1.2751.020 pH( 1)( 1)

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

(d) Subpart A—Solution Heat Treatment NSPS.

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 heat treated Chromium0.2390.096 Copper0.8260.394 Lead0.0640.058 Nickel0.3550.239 Zinc0.6580.271 Oil and grease6.4606.460 TSS9.6907.752 pH( 1)( 1)

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

(e) Subpart A—Extrusion Heat Treatment NSPS.

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 and extrusion press Chromium0.000740.00030 Copper0.00200.0010 Lead0.000200.00018 Nickel0.00100.00074 Zinc0.00200.00084 Oil and grease0.0200.020 TSS0.0300.024 pH( 1)( 1)

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

(f) Subpart A—Annealing with Water NSPS.

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 water English units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with water Chromium0.4580.186 Copper1.5870.756 Lead0.1240.111 Nickel0.6820.458 Zinc1.2640.520 Oil and grease12.40012.400 TSS18.60014.880 pH( 1)( 1)

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

(g) Subpart A—Annealing with Oil NSPS.

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 Chromium00 Copper00 Lead00 Nickel00 Zinc00 Oil and grease00 TSS00 pH( 1)( 1)

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

(h) Subpart A—Alkaline Cleaning Rinse NSPS.

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 Chromium1.5590.632 Copper5.3932.570 Lead0.4210.379 Nickel2.3171.559 Zinc4.2981.769 Oil and grease42.14042.140 TSS63.21050.568 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 NSPS.

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 Chromium4.6771.896 Copper16.1817.711 Lead1.2641.137 Nickel6.9534.677 Zinc12.8945.309 Oil and grease126.420126.420 TSS189.630151.704 pH( 1)( 1)

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

(j) Subpart A—Alkaline Cleaning Bath NSPS.

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 Chromium0.0170.0070 Copper0.0590.028 Lead0.00460.0042 Nickel0.0250.017 Zinc0.0470.019 Oil and grease0.460.46 TSS0.700.56 pH( 1)( 1)

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

(k) Subpart A—Pickling Rinse NSPS.

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 Chromium0.2160.087 Copper0.7480.356 Lead0.0580.052 Nickel0.3210.216 Zinc0.5960.245 Oil and grease5.8505.850 TSS8.7757.020 pH( 1)( 1)

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

(l) Subpart A—Pickling Rinse for Forged Parts NSPS.

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 Chromium0.6490.263 Copper2.2461.070 Lead0.1750.157 Nickel0.9650.649 Zinc1.7900.737 Oil and grease17.55017.550 TSS26.32521.060 pH( 1)( 1)

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

(m) Subpart A—Pickling Bath NSPS.

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 Chromium0.0420.017 Copper0.1480.070 Lead0.0110.010 Nickel0.0630.042 Zinc0.1180.048 Oil and grease1.1601.160 TSS1.7401.392 pH( 1)( 1)

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

(n) Subpart A—Pickling Fume Scrubber NSPS.

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 Chromium0.2310.093 Copper0.8010.381 Lead0.0620.056 Nickel0.3440.231 Zinc0.6380.262 Oil and grease6.2606.260 TSS9.3907.512 pH( 1)( 1)

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

(o) Subpart A—Tumbling or Burnishing NSPS.

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average Metric units—mg/off-kg of copper or copper tumbled or burnished English units—pounds per 1,000,000 off-pounds of copper or copper alloy tumbled or burnished Chromium0.2150.087 Copper0.7460.355 Lead0.0580.052 Nickel0.3200.215 Zinc0.5940.244 Oil and grease5.8305.830 TSS8.7456.996 pH( 1)( 1)

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

(p) Subpart A—Surface Coating NSPS.

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 Chromium0.2740.111 Copper0.9510.453 Lead0.0740.066 Nickel0.4080.274 Zinc0.7570.312 Oil and grease7.4307.430 TSS11.1458.916 pH( 1)( 1)

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

(q) Subpart A—Miscellaneous Waste Streams NSPS.

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/1,000,000 off-pounds of copper or copper alloy formed Chromium0.008 0.003 Copper0.027 0.013 Lead0.00210.0019 Nickel0.011 0.008 Zinc0.022 0.009 Oil and grease0.218 0.218 TSS0.327 0.261 pH( 1)( 1)

Within the range of 7.5 to 10.0 at all times.

[48 FR 36957, Aug. 15, 1983; 48 FR 50718, Nov. 3, 1983]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.13

§ 468.14 - Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources:

(a) Subpart A—Hot Rolling Spent Lubricant PSES.

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 Chromium0.0450.018 Copper0.1950.103 Lead0.0150.013 Nickel0.1970.130 Zinc0.1500.062 TTO0.0660.035 Oil and grease 12.0601.236

1 For alternate monitoring.

(b) Subpart A—Cold Rolling Spent Lubricant PSES.

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 Chromium0.1660.068 Copper0.7200.379 Lead0.0560.049 Nickel0.7270.481 Zinc0.5530.231 TTO0.2460.128 Oil and grease 17.5804.548

1 For alternate monitoring

(c) Subpart A—Drawing Spent Lubricant PSES.

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 Chromium0.0370.015 Copper0.1610.085 Lead0.0120.011 Nickel0.1630.107 Zinc0.1240.051 TTO0.0550.028 Oil and grease 11.7001.020

1 For alternate monitoring.

(d) Subpart A—Solution Heat Treatment PSES.

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 Chromium0.2840.116 Copper1.2270.646 Lead0.0960.083 Nickel1.2400.820 Zinc0.9430.394 TTO0.4190.219 Oil and grease 112.9207.752

1 For alternate monitoring.

(e) Subpart A—Extrusion Heat Treatment PSES.

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 Chromium0.000880.00036 Copper0.00300.0020 Lead0.000300.00026 Nickel0.00300.0020 Zinc0.00200.0010 TTO0.00100.00068 Oil and grease 10.0400.024

1 For alternate monitoring.

(f) Subpart A—Annealing with Water PSES.

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 water English units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with water Chromium0.5450.223 Copper2.3561.240 Lead0.1860.161 Nickel2.3801.574 Zinc1.8100.756 TTO0.8060.421 Oil and grease 124.80014.880

1 For alternate monitoring.

(g) Subpart A—Annealing With Oil PSES.

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 Chromium00 Copper00 Lead00 Nickel00 Zinc00 TTO00 Oil and grease 100

1 For alternate monitoring.

(h) Subpart A—Alkaline Cleaning Rinse PSES.

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 Chromium1.8540.758 Copper8.0064.214 Lead0.6320.547 Nickel8.0905.351 Zinc6.1522.570 TTO2.7391.432 Oil and grease 184.28050.568

1 For alternate monitoring.

(i) Subpart A—Alkaline Cleaning Rinse for Forged Parts PSES.

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 Chromium5.5622.275 Copper24.01912.642 Lead1.8961.643 Nickel24.27216.055 Zinc18.4577.711 TTO8.2174.298 Oil and grease 1252.840151.704

1 For alternate monitoring.

(j) Subpart A—Alkaline Cleaning Bath PSES.

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 alkaine cleaned Chromium0.0200.0084 Copper0.0880.046 Lead0.00700.0060 Nickel0.0890.059 Zinc0.0680.028 TTO0.0300.015 Oil and grease 10.930.56

1 For alternate monitoring.

(k) Subpart A—Pickling Rinse PSES.

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 of pounds of copper or copper alloy pickled Chromium0.5740.235 Copper2.4811.306 Lead0.1950.169 Nickel2.5071.658 Zinc1.9060.796 TTO0.8480.444 Oil and grease 126.12015.672

1 For alternate monitoring.

(l) Subpart A—Pickling Rinse for Forged Parts PSES.

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 Chromium1.7230.705 Copper7.4443.918 Lead0.5870.509 Nickel7.5224.975 Zinc5.7202.389 TTO2.5461.332 Oil and grease 178.36047.016

1 For alternate monitoring.

(m) Subpart A—Pickling Bath PSES.

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 Chromium0.0510.020 Copper0.2200.116 Lead0.0170.015 Nickel0.2220.147 Zinc0.1690.070 TTO0.0750.039 Oil and grease 12.3201.392

1 For alternate monitoring.

(n) Subpart A—Pickling Fume Scrubber PSES

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 Chromium0.2750.112 Copper1.1890.626 Lead0.0930.081 Nickel1.2010.795 Zinc0.9130.381 TTO0.4060.212 Oil and grease 112.5207.512

1 For alternate monitoring.

(o) Subpart A—Tumbling or Burnishing PSES.

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 Chromium0.2560.104 Copper1.1070.583 Lead0.0870.075 Nickel1.1190.740 Zinc0.8510.355 TTO0.3780.198 Oil and grease 111.6606.996

1 For alternate monitoring.

(p) Subpart A—Surface Coating PSES.

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 Chromium0.3260.133 Copper1.4110.743 Lead0.1110.096 Nickel1.4260.943 Zinc1.0840.453 TTO0.4820.252 Oil and grease 114.8608.916

1 For alternate monitoring.

(q) Subpart A—Miscellaneous Waste Streams PSES.

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 Chromium0.0090.003 Copper0.0410.021 Lead0.0030.002 Nickel0.0410.027 Zinc0.0310.013 TTO0.0140.007 Oil and grease 10.4360.261

1 For alternate monitoring.

[48 FR 36957, Aug. 15, 1983, as amended at 51 FR 22521, June 20, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.14

§ 468.15 - 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 sources for new sources:

(a) Subpart A—Hot Rolling Spent Lubricant PSNS.

Pollutant or pollutant property Maximum for any one 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 Chromium0.0380.015 Copper0.1310.062 Lead0.0100.0092 Nickel0.0560.038 Zinc0.1050.043 TTO0.0350.035 Oil and grease 11.0301.030

1 For alternate monitoring.

(b) Subpart A—Cold Rolling Spent Lubricant PSNS.

Pollutant or pollutant property Maximum for any one 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 Chromium0.1400.056 Copper0.4850.231 Lead0.0370.034 Nickel0.2080.140 Zinc0.3860.159 TTO0.1280.128 Oil and grease 13.7903.790

1 For alternate monitoring.

(c) Subpart A—Drawing Spent Lubricant PSNS.

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 Chromium0.0310.012 Copper0.1080.051 Lead0.00850.0076 Nickel0.0460.031 Zinc0.0860.035 TTO0.0280.028 Oil and grease 10.8500.850

1 For alternate monitoring.

(d) Subpart A—Solution Heat Treatment PSNS.

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 Chromium0.2390.096 Copper0.8260.394 Lead0.0640.058 Nickel0.3550.239 Zinc0.6580.271 TTO0.2190.219 Oil and grease 16.4606.460

1 For alternate monitoring.

(e) Subpart A—Extrusion Heat Treatment PSNS.

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 Chromium0.000740.00030 Copper0.00200.0010 Lead0.000200.00018 Nickel0.00100.00074 Zinc0.00200.00084 TTO0.000680.00068 Oil and grease 10.0200.020

1 For alternate monitoring.

(f) Subpart A—Annealing with Water PSNS.

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 water English units—pounds per 1,000,000 off-pounds of copper or copper alloy annealed with water Chromium0.4580.186 Copper1.5870.756 Lead0.1240.111 Nickel0.6820.458 Zinc1.2640.520 TTO0.4210.421 Oil and grease 112.40012.400

1 For alternate monitoring.

(g) Subpart A—Annealing With Oil PSNS.

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 Chromium00 Copper00 Lead00 Nickel00 Zinc00 TTO00 Oil and grease 100

1 For alternate monitoring.

(h) Subpart A—Alkaline Cleaning Rinse PSNS.

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 Chromium1.5590.632 Copper5.3932.570 Lead0.4210.379 Nickel2.3171.559 Zinc4.2981.769 TTO1.4321.432 Oil and grease 142.14042.140

1 For alternate monitoring.

(i) Subpart A—Alkaline Cleaning Rinse for Forged Parts PSNS.

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 Chromium4.6771.896 Copper16.1817.711 Lead1.2641.137 Nickel6.9534.677 Zinc12.8945.309 TTO4.2984.298 Oil and grease 1126.420126.420

1 For alternate monitoring.

(j) Subpart A—Alkaline Cleaning Bath PSNS.

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 Chromium0.0170.0070 Copper0.0590.028 Lead0.00460.0042 Nickel0.0250.017 Zinc0.0470.019 TTO0.0150.015 Oil and grease 10.460.46

1 For alternate monitoring.

(k) Subpart A—Pickling Rinse PSNS.

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 Chromium0.2160.087 Copper0.7480.356 Lead0.0580.052 Nickel0.3210.216 Zinc0.5960.245 TTO0.1980.198 Oil and grease 15.8505.850

1 For alternate monitoring.

(l) Subpart A—Pickling Rinse for Forged Parts PSNS.

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 Chromium0.6490.263 Copper2.2461.070 Lead0.1750.157 Nickel0.9650.649 Zinc1.7900.737 TTO0.5960.596 Oil and grease 117.55017.550

1 For alternate monitoring.

(m) Subpart A—Pickling Bath PSNS.

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 Chromium0.0420.017 Copper0.1480.070 Lead0.0110.010 Nickel0.0630.042 Zinc0.1180.048 TTO0.0390.039 Oil and grease 11.1601.160

1 For alternate monitoring.

(n) Subpart A—Pickling Fume Scrubber PSNS.

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 Chromium0.2310.093 Copper0.8010.381 Lead0.0620.056 Nickel0.3440.231 Zinc0.6380.262 TTO0.2120.212 Oil and grease 16.2606.260

1 For alternate monitoring.

(o) Subpart A—Tumbling or Burnishing PSNS.

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 Chromium0.2150.087 Copper0.7460.355 Lead0.0580.052 Nickel0.3200.215 Zinc0.5940.244 TTO0.1980.198 Oil and grease 15.8305.830

1 For alternate monitoring.

(p) Subpart A—Surface Coating PSNS.

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 Chromium0.2740.111 Copper0.9510.453 Lead0.0740.066 Nickel0.4080.274 Zinc0.7570.312 TTO0.2520.252 Oil and grease 17.4307.430

1 For alternate monitoring.

(q) Subpart A—Miscellaneous Waste Streams PSNS.

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 Chromium0.0080.003 Copper0.0270.013 Lead0.00210.0019 Nickel0.0110.008 Zinc0.0220.009 TTO0.0070.007 Oil and grease 10.2180.218

1 For alternate monitoring.

[48 FR 36957, Aug. 15, 1983; 48 FR 50719, Nov. 3, 1983]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.15

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

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 48 FR 36957, Aug. 15, 1983, unless otherwise noted.

CITE AS: 40 CFR 468.16