40 CFR 471.43 - New source performance standards (NSPS).

View all text of Subpart D [§ 471.40 - § 471.46]

§ 471.43 - New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS):

(a) Rolling Spent Neat Oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions		Cadmium	0.026	0.012	Copper	0.147	0.077	Cyanide	0.023	0.010	Silver	0.032	0.013	Oil and grease	1.54	0.925	TSS	3.16	1.51	pH	( 1)	( 1)

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

(c) Drawing spent neat oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(d) Drawing spent emulsions.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions		Cadmium	0.017	0.007	Copper	0.091	0.048	Cyanide	0.014	0.006	Silver	0.020	0.008	Oil and grease	0.950	0.570	TSS	1.95	0.927	pH	( 1)	( 1)

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

(e) Drawing spent soap solutions.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions		Cadmium	0.001	0.0005	Copper	0.006	0.003	Cyanide	0.0009	0.0004	Silver	0.002	0.0006	Oil and grease	0.063	0.038	TSS	0.128	0.061	pH	( 1)	( 1)

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

(f) Metal powder production atomization wastewater.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized		Cadmium	2.27	1.00	Copper	12.7	6.68	Cyanide	1.94	0.802	Silver	2.74	1.14	Oil and grease	134	80.2	TSS	274	131	pH	( 1)	( 1)

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

(g) Heat treatment contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals heat treated		Cadmium	0.142	0.063	Copper	0.793	0.417	Cyanide	0.121	0.050	Silver	0.171	0.071	Oil and grease	8.34	5.01	TSS	17.1	8.13	pH	( 1)	( 1)

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

(h) Semi-continuous and continuous casting contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method		Cadmium	0.350	0.155	Copper	1.96	1.03	Cyanide	0.299	0.124	Silver	0.423	0.175	Oil and grease	20.6	12.4	TSS	42.3	20.1	pH	( 1)	( 1)

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

(i) Stationary casting contact cooling water—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(j) Direct chill casting contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method		Cadmium	0.367	0.162	Copper	2.05	1.08	Cyanide	0.313	0.130	Silver	0.443	0.184	Oil and grease	21.6	13.0	TSS	44.3	21.1	pH	( 1)	( 1)

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

(k) Shot casting contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals shot cast		Cadmium	0.125	0.055	Copper	0.698	0.367	Cyanide	0.107	0.044	Silver	0.151	0.063	Oil and grease	7.34	4.41	TSS	15.1	7.16	pH	( 1)	( 1)

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

(l) Wet air pollution control scrubber blowdown—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(m) Pressure bonding contact cooling water.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals and base metal pressure bonded		Cadmium	0.029	0.013	Copper	0.159	0.084	Cyanide	0.024	0.010	Silver	0.034	0.014	Oil and grease	1.67	1.00	TSS	3.43	1.63	pH	( 1)	( 1)

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

(n) Surface treatment spent baths.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals surface treated		Cadmium	0.033	0.015	Copper	0.183	0.097	Cyanide	0.028	0.012	Silver	0.040	0.017	Oil and grease	1.93	1.16	TSS	3.95	1.88	pH	( 1)	( 1)

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

(o) Surface treatment rinse.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals surface treated		Cadmium	0.210	0.093	Copper	1.17	0.616	Cyanide	0.179	0.074	Silver	0.253	0.105	Oil and grease	12.3	7.39	TSS	25.3	12.0	pH	( 1)	( 1)

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

(p) Alkaline cleaning spent baths.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned		Cadmium	0.021	0.009	Copper	0.114	0.060	Cyanide	0.018	0.007	Silver	0.025	0.010	Oil and grease	1.20	0.720	TSS	2.46	1.17	pH	( 1)	( 1)

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

(q) Alkaline cleaning rinse.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned		Cadmium	0.381	0.168	Copper	2.13	1.112	Cyanide	0.325	0.135	Silver	0.459	0.191	Oil and grease	22.4	13.5	TSS	45.9	21.9	pH	( 1)	( 1)

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

(r) Alkaline cleaning pre-bonding wastewater.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding		Cadmium	0.400	0.174	Copper	2.21	1.16	Cyanide	0.337	0.139	Silver	0.476	0.197	Oil and grease	23.2	13.9	TSS	47.6	22.6	pH	( 1)	( 1)

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

(s) Tumbling or burnishing wastewater.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished		Cadmium	0.412	0.182	Copper	2.30	1.21	Cyanide	0.351	0.145	Silver	0.496	0.206	Oil and grease	24.2	14.5	TSS	49.6	23.6	pH	( 1)	( 1)

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

(t) Sawing or grinding spent neat oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

(u) Sawing or grinding spent emulsions.

Subpart D—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions		Cadmium	0.032	0.014	Copper	0.178	0.094	Cyanide	0.027	0.011	Silver	0.038	0.016	Oil and grease	1.87	1.12	TSS	3.83	1.82	pH	( 1)	( 1)

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

(v) Degreasing spent solvents—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.

[50 FR 34270, Aug. 23, 1985; 51 FR 2886, Jan. 22, 1986]