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 a 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in primary nickel and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Raw material dust control.
PSNS for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of copper, nickel, and cobalt in the crushed raw material
|
| Copper | 0.099 | 0.047
|
| Nickel | 0.042 | 0.028
|
| Ammonia (as N) | 10.260 | 4.512
|
| Cobalt | 0.011 | 0.005 |
(b) Nickel wash water.
PSNS for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of nickel powder washed
|
| Copper | 0.043 | 0.021
|
| Nickel | 0.019 | 0.013
|
| Ammonia (as N) | 4.515 | 1.985
|
| Cobalt | 0.005 | 0.002 |
(c) Nickel reduction decant.
PSNS for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) nickel produced
|
| Copper | 16.250 | 7.744
|
| Nickel | 6.982 | 4.697
|
| Ammonia (as N) | 1,692.000 | 743.900
|
| Cobalt | 1.777 | 0.889 |
(d) Cobalt reduction decant.
PSNS for the Primary Nickel and Cobalt Subcategory
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| mg/kg (pounds per million pounds) of cobalt produced
|
| Copper | 27.390 | 13.050
|
| Nickel | 11.770 | 7.917
|
| Ammonia (as N) | 2,852.000 | 1,254.000
|
| Cobalt | 2.996 | 1.498 |
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) and the Water Quality Act of 1987 (the “Act”);
33 U.S.C. 1311,
1314,
c,
e,
and, 1316 (b) and
c, 1317 (b) and
c,
1318; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4
source: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.
cite as: 40 CFR 421.236