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| Subpart N | Insulation Board Subcategory | 429.150 – 429.156 | |||||||||||||||||||||
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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(b), (c), (e), and (g), 1316(b) and (c), 1317(b) and (c), and 1361; 86 Stat. 815, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.
46 FR 8285, Jan. 26, 1981, unless otherwise noted.
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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 plants which produce insulation board using wood as the primary raw material. Specifically excluded from this subpart is the manufacture of insulation board from the primary raw material bagasse.
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):
| Pollutant or pollutant property | BPT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days | |
| kg/kkg (lb/1000 lb) of gross production | ||
| BOD5 | 8.13 | 4.32 |
| TSS | 5.69 | 2.72 |
| pH | (1) | |
| 1 Within the range 6.0 to 9.0 at all times. | ||
Any new source subject to this subpart must achieve the following new source performance standards (NSPS): There shall be no discharge of process wastewater pollutants into navigable waters.
Any existing source subject to this subpart which introduces process wastewater pollutants into publicly owned treatment works must comply with 40 CFR part 403.
Any new source subject to this subpart which introduces process wastewater pollutants into publicly owned treatment works must comply with 40 CFR part 403.