40 CFR 461.31 - 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 C [§ 461.30 - § 461.35]

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

(a) 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:

(1) Subpart C—Closed Formation—Double Fill, or Fill and Dump.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.86	0.45	Lead	0.19	0.090	Iron	0.54	0.27	Oil and grease	9.00	5.40	TSS	18.45	8.78	pH	( 1)	( 1)

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

(2) Subpart C—Open Formation—Dehydrated.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	20.99	11.05	Lead	4.64	2.21	Iron	16.13	6.74	Oil and grease	221.00	132.60	TSS	453.05	215.47	pH	( 1)	( 1)

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

(3) Subpart C—Open Formation—Wet.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.10	0.05	Lead	0.02	0.01	Iron	0.06	0.03	Oil and grease	1.06	0.64	TSS	2.17	1.03	pH	( 1)	( 1)

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

(4) Subpart C—Plate Soak.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.040	0.020	Lead	0.009	0.004	Iron	0.030	0.010	Oil and grease	0.420	0.250	TSS	0.860	0.410	pH	( 1)	( 1)

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

(5) Subpart C—Battery Wash (with Detergent).

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	1.71	0.90	Lead	0.38	0.18	Iron	1.08	0.55	Oil and grease	18.00	10.80	TSS	36.90	17.55	pH	( 1)	( 1)

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

(6) Subpart C—Battery Wash (Water Only).

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	1.12	0.59	Lead	0.25	0.12	Iron	0.71	0.36	Oil and grease	11.80	7.08	TSS	24.19	11.51	pH	( 1)	( 1)

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

(7) Subpart C—Direct Chill Lead Casting.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.00040	0.00020	Lead	0.00008	0.00004	Iron	0.00020	0.00010	Oil and grease	0.00400	0.00200	TSS	0.00800	0.00300	pH	( 1)	( 1)

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

(8) Subpart C—Mold Release Formulation.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.011	0.006	Lead	0.002	0.001	Iron	0.007	0.004	Oil and grease	0.120	0.072	TSS	0.246	0.117	pH	( 1)	( 1)

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

(9) Subpart C—Truck Wash.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead in trucked batteries			English units—pounds per 1,000,000 pounds of lead in trucked batteries		Copper	0.026	0.014	Lead	0.005	0.002	Iron	0.016	0.008	Oil and grease	0.280	0.168	TSS	0.574	0.273	pH	( 1)	( 1)

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

(10) Subpart C—Laundry.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.21	0.11	Lead	0.05	0.02	Iron	0.13	0.07	Oil and grease	2.18	1.31	TSS	4.47	2.13	pH	( 1)	( 1)

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

(11) Subpart C—Miscellaneous Wastewater Streams.

BPT Effluent Limitations

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		Metric units—mg/kg of lead used			English units—pounds per 1,000,000 pounds of lead used		Copper	0.81	0.43	Lead	0.18	0.09	Iron	0.51	0.26	Oil and grease	8.54	5.12	TSS	17.51	8.33	pH	( 1)	( 1)

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

(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.

[49 FR 9134, Mar. 9, 1984; 49 FR 13879, Apr. 9, 1984]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 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: 49 FR 9134, Mar. 9, 1984, unless otherwise noted.

CITE AS: 40 CFR 461.31