40 CFR 471.71 - 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 G [§ 471.70 - § 471.76]

§ 471.71 - 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 praticable control technology currently available (BPT):

(a) Extrusion spent lubricants—subpart G—BPT. There shall be no discharge process wastewater pollutants.

(b) Extrusion tool contact cooling water.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium extruded		Cadium	0.117	0.052	Chromium	0.152	0.062	Copper	0.654	0.344	Lead	0.145	0.069	Nickel	0.661	0.437	Fluoride	20.5	9.08	Molybdenum	2.28	1.18	Oil and grease	6.88	4.13	TSS	14.1	6.71	pH	( 1)	( 1)

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

(c) Heat treatment contact cooling water.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of extruded or forged uranium heat treated		Cadium	0.646	0.285	Chromium	0.836	0.342	Copper	3.61	1.90	Lead	0.798	0.380	Nickel	3.65	2.42	Fluoride	113	50.2	Molybdenum	12.6	6.5	Oil and grease	38	22.8	TSS	77.9	37.1	pH	( 1)	( 1)

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

(d) Forging spent lubricants—subpart G—BPT. There shall be no discharge of process wastewater pollutants.

(e) Surface treatment spent baths.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium surface treated		Cadmium	0.010	0.004	Chromium	0.012	0.005	Copper	0.052	0.027	Lead	0.012	0.006	Nickel	0.052	0.035	Fluoride	1.62	0.718	Molybdenum	0.180	0.093	Oil and grease	0.544	0.327	TSS	1.12	0.531	pH	( 1)	( 1)

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

(f) Surface treatment rinse.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium surface treated		Cadmium	0.115	0.050	Chromium	0.149	0.061	Copper	0.641	0.337	Lead	0.142	0.068	Nickel	0.647	0.428	Fluoride	20.1	8.90	Molybdenum	2.23	1.16	Oil and grease	6.74	4.05	TSS	13.8	6.57	pH	( 1)	( 1)

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

(g) Wet air pollution control scrubber blowdown.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium surface treated		Cadmium	0.00	0.0006	Chromium	0.002	0.0007	Copper	0.007	0.004	Lead	0.002	0.0007	Nickel	0.007	0.005	Fluoride	0.208	0.092	Molybdenum	0.023	0.012	Oil and grease	0.070	0.042	TSS	0.143	0.068	pH	( 1)	( 1)

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

(h) Sawing or grinding spent emulsions.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with emulsions		Cadmium	0.002	0.0009	Chromium	0.003	0.001	Copper	0.011	0.006	Lead	0.003	0.001	Nickel	0.011	0.007	Fluoride	0.338	0.150	Molybdenum	0.038	0.020	Oil and grease	0.114	0.068	TSS	0.233	0.111	pH	( 1)	( 1)

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

(i) Sawing or grinding contact cooling water.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium sawed or ground with contact cooling ater		Cadmium	0.561	0.248	Chromium	0.726	0.297	Copper	3.14	1.65	Lead	0.693	0.330	Nickel	3.17	2.1	Fluoride	98.2	43.6	Molybdenum	10.9	5.65	Oil and grease	33.0	19.8	TSS	67.7	32.2	pH	( 1)	( 1)

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

(j) Sawing or grinding rinse.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of sawed or ground uranium rinses		Cadmium	0.002	0.0007	Chromium	0.002	0.0009	Copper	0.009	0.005	Lead	0.002	0.001	Nickel	0.009	0.006	Fluoride	0.277	0.123	Molybdenum	0.031	0.016	Oil and grease	0.093	0.056	TSS	0.191	0.091	pH	( 1)	( 1)

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

(k) Area cleaning rinse.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium formed		Cadmium	0.015	0.007	Chromium	0.019	0.008	Copper	0.082	0.043	Lead	0.018	0.009	Nickel	0.083	0.055	Fluoride	2.56	1.14	Molybdenum	0.284	0.147	Oil and grease	0.858	0.515	TSS	1.76	0.837	pH	( 1)	( 1)

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

(l) Drum washwater.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of uranium formed		Cadmium	0.015	0.007	Chromium	0.020	0.008	Copper	0.084	0.045	Lead	0.019	0.009	Nickel	0.085	0.057	Fluoride	2.64	1.17	Molybdenum	0.293	0.152	Oil and grease	0.886	0.532	TSS	1.82	0.864	pH	( 1)	( 1)

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

(m) Laundry washwater.

Subpart G—BPT

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/employee—day		Cadmium	17.8	7.86	Chromium	23.1	9.43	Copper	99.6	52.4	Lead	22.0	10.5	Nickel	101	66.6	Fluoride	3,120	1,390	Molybdenum	347	179	Oil and grease	1,050	629	TSS	2,150	1,020	pH	( 1)	( 1)

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

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

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