This subpart applies to discharges to waters of the United States and to the introduction of process wastewater pollutants into publicly owned treatment works from the barking of logs by plants in SIC major group 24, and by plants producing insulation board (SIC group 2661).
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 (BPT):
(a) The following limitations apply to all mechanical barking installations: There shall be no discharge of process wastewater pollutants into navigable waters.
(b) The following limitations constitute the maximum permissible discharge for hydraulic barking installations:
| Pollutant or pollutant property
| BPT effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| | Metric units (kilograms per cubic meter of production)
|
| BOD5 | 1.5 | 0.5
|
| TSS | 6.9 | 2.3
|
| pH | (
1) | (
1)
|
| | English units (pounds per cubic foot of production)
|
| BOD5 | 0.09 | 0.03
|
| TSS | 0.431 | 0.144
|
| pH | (
1) | (
1)
|
Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
(a) The following limitations apply to all mechanical barking installations: There shall be no discharge of process wastewater pollutants into navigable waters.
(b) The following limitations constitute the maximum permissible discharge for hydraulic barking installations:
| Pollutant or pollutant property
| NSPS effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| | Metric units (kilograms per cubic meter of production)
|
| BOD5 | 1.5 | 0.5
|
| TSS | 6.9 | 2.3
|
| pH | (
1) | (
1)
|
| | English units (pounds per cubic foot of production)
|
| BOD5 | 0.09 | 0.03
|
| TSS | 0.431 | 0.144
|
| pH | (
1) | (
1)
|
Any existing source subject to this subpart which introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403.
Any new source subject to this subpart which introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403.
authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307(a)(b) and (c) 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,
c,
e,
and, 1316(b) and
c, 1317(b) and
c,
and; 86 Stat. 815, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217
source: 46 FR 8285, Jan. 26, 1981, unless otherwise noted.
cite as: 40 CFR 429.25