Current as of October 03, 2022 | Updated by FindLaw Staff
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Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Furnace wet air pollution control.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of precious metals, including silver, incinerated or smelted |
||
|
Copper |
5.760 |
2.745 |
|
Cyanide (total) |
0.900 |
0.360 |
|
Zinc |
4.590 |
1.890 |
|
Combined metals |
1.350 |
|
|
Ammonia (as N) |
599.900 |
263.700 |
|
Total suspended solids |
67.500 |
54.000 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(b) Raw material granulation.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of precious metals in the granulated raw material |
||
|
Copper |
0.819 |
0.390 |
|
Cyanide (total) |
0.128 |
0.051 |
|
Zinc |
0.653 |
0.269 |
|
Combined metals |
0.192 |
|
|
Ammonia (as N) |
85.310 |
37.500 |
|
Total suspended solids |
9.600 |
7.680 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(c) Spent plating solutions.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/liter of spent plating solution used as a raw material |
||
|
Copper |
1.280 |
0.610 |
|
Cyanide (total) |
0.200 |
0.080 |
|
Zinc |
1.020 |
0.420 |
|
Combined metals |
0.300 |
|
|
Ammonia (as N) |
133.300 |
58.600 |
|
Total suspended solids |
15.000 |
12.000 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(d) Spent cyanide stripping solutions.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of gold produced by cyanide stripping |
||
|
Copper |
4.736 |
2.257 |
|
Cyanide (total) |
0.740 |
0.296 |
|
Zinc |
3.774 |
1.554 |
|
Combined metals |
1.11 |
|
|
Ammonia (as N) |
493.200 |
216.800 |
|
Total suspended solids |
55.500 |
44.400 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(e) Refinery wet air pollution control 2.
2 This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility the same allowance applies to each.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of precious metals, including silver, produced in refinery |
||
|
Copper |
1.280 |
0.610 |
|
Cyanide (total) |
0.200 |
0.080 |
|
Zinc |
1.020 |
0.420 |
|
Combined metals |
0.300 |
|
|
Ammonia (as N) |
133.300 |
58.600 |
|
Total suspended solids |
15.000 |
12.000 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(f) Gold solvent extraction raffinate and wash water.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of gold produced by solvent extraction |
||
|
Copper |
0.806 |
0.384 |
|
Cyanide (total) |
0.126 |
0.050 |
|
Zinc |
0.643 |
0.265 |
|
Combined metals |
0.189 |
|
|
Ammonia (as N) |
83.980 |
36.920 |
|
Total suspended solids |
9.450 |
7.560 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(g) Gold spent electrolyte.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of gold produced by electrolysis |
||
|
Copper |
0.011 |
0.005 |
|
Cyanide (total) |
0.002 |
0.001 |
|
Combined metals |
0.003 |
|
|
Zinc |
0.009 |
0.004 |
|
Ammonia (as N) |
1.160 |
0.510 |
|
Total suspended solids |
0.131 |
0.104 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(h) Gold precipitation and filtration.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of gold precipitated |
||
|
Copper |
5.632 |
2.684 |
|
Cyanide (total) |
0.880 |
0.352 |
|
Zinc |
4.488 |
1.848 |
|
Combined metals |
1.320 |
|
|
Ammonia (as N) |
586.500 |
257.800 |
|
Total suspended solids |
66.00 |
52.800 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(i) Platinum precipitation and filtration.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of platinum precipitated |
||
|
Copper |
6.656 |
3.172 |
|
Cyanide (total) |
1.040 |
0.416 |
|
Zinc |
5.304 |
2.184 |
|
Combined metals |
1.560 |
|
|
Ammonia (as N) |
693.200 |
304.700 |
|
Total suspended solids |
78.000 |
62.400 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(j) Palladium precipitation and filtration.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of palladium precipitated |
||
|
Copper |
7.680 |
3.660 |
|
Cyanide (total) |
1.200 |
0.480 |
|
Zinc |
6.1200 |
2.520 |
|
Combined metals |
1.800 |
|
|
Ammonia (as N) |
799.800 |
351.600 |
|
Total suspended solids |
90.000 |
72.000 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.00 at all times.
(k) Other platinum group metals precipitation and filtration.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of other platinum group metals precipitated |
||
|
Copper |
6.656 |
3.172 |
|
Cyanide (total) |
1.040 |
0.416 |
|
Zinc |
5.304 |
2.184 |
|
Combined metals |
1.560 |
|
|
Ammonia (as N) |
693.200 |
304.700 |
|
Total suspended solids |
78.000 |
62.400 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(l) Spent solution from PGC salt production.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of gold contained in PGC product |
||
|
Copper |
1.152 |
0.549 |
|
Cyanide (total) |
0.180 |
0.072 |
|
Zinc |
0.918 |
0.378 |
|
Combined metals |
0.270 |
|
|
Ammonia (as N) |
120.000 |
52.740 |
|
Total suspended solids |
13.500 |
10.800 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(m) Equipment and floor wash.
|
NSPS FOR THE SECONDARY PRECIOUS METALS SUBCATEGORY |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of precious metals, including silver, produced in refinery |
||
|
Copper |
0.000 |
0.000 |
|
Cyanide (total) |
0.000 |
0.000 |
|
Zinc |
0.000 |
0.000 |
|
Combined metals |
0.000 |
|
|
Ammonia (as N) |
0.000 |
0.000 |
|
Total suspended solids |
0.000 |
0.000 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
(n) Preliminary treatment.
|
NSPS for the Secondary Precious Metals Subcategory |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
mg/troy ounce of total precious metals produced through this operation |
||
|
Copper |
64.000 |
30.500 |
|
Cyanide (Total) |
10.000 |
4.000 |
|
Zinc |
51.000 |
21.000 |
|
Combined metals |
15.000 |
|
|
Ammonia (as N) |
6665.000 |
2930.000 |
|
Total Suspended Solids |
750.000 |
600.000 |
|
pH |
(1) |
(1) |
1 Within the range of 7.5 to 10.0 at all times.
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.421.264 Standards of performance for new sources - last updated October 03, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-421-264/
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