40 CFR § 430.125 - New source performance standards (NSPS).
---
identifier: "/us/cfr/t40/s430.125"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 430.125 - New source performance standards (NSPS)."
title_number: 40
title_name: "Protection of Environment"
section_number: "430.125"
section_name: "New source performance standards (NSPS)."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "430"
part_name: "THE PULP, PAPER, AND PAPERBOARD POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Sections 301, 304, 306, 307, 308, 402, and 501 of the Clean Water Act, as amended, (33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342, and 1361), and Section 112 of the Clean Air Act, as amended (42 U.S.C. 7412)."
regulatory_source: "63 FR 18635, Apr. 15, 1998, unless otherwise noted."
cfr_part: "430"
---
# 430.125 New source performance standards (NSPS).
Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and average of 30 consecutive days effluent limitations for BOD5 and TSS, but shall be subject to annual average effluent limitations. Also, for non-continuous dischargers, concentration limitations (mg/l) shall apply, where provided. Concentration limitations will only apply to non-continuous dischargers. Only facilities where chlorophenolic-containing biocides are used shall be subject to pentachlorophenol and trichlorophenol limitations. Permittees not using chlorophenolic-containing biocides must certify to the permit-issuing authority that they are not using these biocides:
Subpart L
[NSPS for non-integrated mills where tissue papers are produced from purchased pulp]
| | | | |
| --- | --- | --- | --- |
| BOD5 | 7.0 | 3.4 | 2.3 |
| TSS | 6.0 | 2.6 | 1.6 |
| pH | () | () | () |
| | | |
| --- | --- | --- |
| Pentachlorophenol | 0.0028 | (0.035)(19.1)/y |
| Trichlorophenol | 0.00096 | (0.012)(19.1)/y |
| y = wastewater discharged in kgal per ton at all times. | | |
| Within the range of 5.0 to 9.0 at all times. | | |
Subpart L
[NSPS for non-integrated mills where filter and non-woven papers are produced from purchased pulp]
| | | | |
| --- | --- | --- | --- |
| BOD5 | 17.1 | 8.3 | 5.6 |
| TSS | 15.0 | 6.6 | 4.0 |
| pH | () | () | () |
| | | |
| --- | --- | --- |
| Pentachlorophenol | 0.0072 | (0.037)(47.5)/y |
| Trichlorophenol | 0.0025 | (0.013)(47.5)/y |
| y = wastewater discharged in kgal per ton at all times. | | |
| Within the range of 5.0 to 9.0 at all times. | | |
Subpart L
[NSPS for non-integrated mills where paperboard is produced from purchased pulp]
| | | | |
| --- | --- | --- | --- |
| BOD5 | 4.0 | 1.9 | 1.3 |
| TSS | 3.5 | 1.5 | 0.9 |
| pH | () | () | () |
| | | |
| --- | --- | --- |
| Pentachlorophenol | 0.0016 | (0.033)(11.2)/y |
| Trichlorophenol | 0.00054 | (0.012)(11.2)/y |
| y = wastewater discharged in kgal per ton at all times. | | |
| () Within the range of 5.0 to 9.0 at all times. | | |