40 CFR § 430.75 - New source performance standards (NSPS).
---
identifier: "/us/cfr/t40/s430.75"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 430.75 - New source performance standards (NSPS)."
title_number: 40
title_name: "Protection of Environment"
section_number: "430.75"
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"
---
# 430.75 New source performance standards (NSPS).
(a) The following applies to mechanical pulp facilities where pulp and paper at groundwood mills are produced through the application of the thermo-mechanical process; mechanical pulp facilities where the integrated production of pulp and coarse paper, molded pulp products, and newsprint at groundwood mills occurs; and mechanical pulp facilities where the integrated production of pulp and fine paper at groundwood mills occurs: 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. Pentachlorophenol and trichlorophenol limitations are only applicable at facilities where chlorophenolic-containing biocides are used. Permittees not using chlorophenolic-containing biocides must certify to the permit-issuing authority that they are not using these biocides. Zinc limitations are only applicable at facilities where zinc hydrosulfite is used as a bleaching agent. Permittees not using zinc hydrosulfite as a bleaching agent must certify to the permit issuing authority that they are not using this bleaching compound:
Subpart G
[NSPS for mechanical pulp facilities where pulp and paper at groundwood mills are produced through the application of the thermo-mechanical process]
| | | | |
| --- | --- | --- | --- |
| BOD5 | 4.6 | 2.5 | 1.3 |
| TSS | 8.7 | 4.6 | 2.4 |
| pH | () | () | () |
| | | |
| --- | --- | --- |
| Pentachlorophenol | 0.00097 | (0.017)(13.8)/y |
| Trichlorophenol | 0.00088 | (0.015)(13.8)/y |
| Zinc | 0.17 | (3.0)(13.8)/y |
| y = wastewater discharged in kgal per ton at all times. | | |
| Within the range of 5.0 to 9.0 at all times. | | |
Subpart G
[NSPS for mechanical pulp facilities where the integrated production of pulp and coarse paper, molded pulp products, and newsprint at groundwood mills occurs]
| | | | |
| --- | --- | --- | --- |
| BOD5 | 4.6 | 2.5 | 1.3 |
| TSS | 7.3 | 3.8 | 2.0 |
| pH | () | () | () |
| | | |
| --- | --- | --- |
| Pentachlorophenol | 0.0011 | (0.016)(16.8)/y |
| Trichlorophenol | 0.00099 | (0.014)(16.8)/y |
| Zinc | 0.21 | (3.0)(16.8)/y |
| y = wastewater discharged in kgal per ton at all times. | | |
| Within the range of 5.0 to 9.0 at all times. | | |
Subpart G
[NSPS mechanical pulp facilities where the integrated production of pulp and fine paper at groundwood mills occurs]
| | | | |
| --- | --- | --- | --- |
| BOD5 | 3.5 | 1.9 | 0.99 |
| TSS | 5.8 | 3.0 | 1.58 |
| pH | () | () | () |
| | | |
| --- | --- | --- |
| Pentachlorophenol | 0.0010 | (0.016) (15.4)/y |
| Trichlorophenol | 0.00092 | (0.014) (15.4)/y |
| Zinc | 0.19 | (3.0) (15.4)/y |
| y = wastewater discharged in kgal per ton at all times. | | |
| Within the range of 5.0 to 9.0 at all times. | | |
(b) [Reserved]