Water Quality Standards To Protect Aquatic Life in the Delaware River

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 131 [EPA-HQ-OW-2023-0222; FRL 10760-01-OW] RIN 2040-AG30 Correction In proposed rule document 2023-27758, appearing on pages 88315-88336 in the issue of Thursday, December 21, 2023, make the following correction: On page 88326, in the table titled “Table 7: Alternative 1: Dissolved Oxygen Criteria Expressed as Concentration (mg/L)”, the table is corrected to appear as set forth below: Table 7—Alternative 1: Dissolved Oxygen Criteria Expressed as Concentration [mg/L] Season Water temperature (°C) Magnitude (mg/L) Duration Exceedance frequency Spawning and Larval Development (March 1-June 30) * 23.3 (14.7) * 5.6 (6.7) Daily Average 10% (12 Days Cumulative) . Juvenile Development (July 1-October 31) +  N/A 5.4 Daily Average 10% (12 Days Cumulative) .   +  N/A 6.1 Daily Average 50% (61 Days Cumulative) . Overwintering (November 1-February 28/29) * 12.4 (5.6) * 7.0 (8.3) Daily Average 10% (12 Days Cumulative) . *  The 90th percentile of seasonal water temperature and corresponding criterion is used for the main estimate, while the average water temperature and corresponding criterion is shown in parentheses. +  Water temperature is not applicable during the Juvenile Development season because the criteria magnitudes are derived from the EPA's Atlantic Sturgeon cohort model, described in section IV.C.1 of this preamble. [ FR Doc. C1-2023-27758 Filed 1-5-24;…