2026-WQ Report on Methodology for the Delaware River and Bay Assessment
The Delaware River Basin Commission (DRBC) will assess waters of the mainstem Delaware River and Delaware Bay to determine whether the river is supporting the designated uses expressed in the Commission’s Administrative Manual Part III, Water Quality Regulations (18 CFR Part 410). DRBC’s Water Quality Regulations can be found at http://www.nj.gov/drbc/library/documents/WQregs.pdf.
The DRBC is soliciting comments and input from interested parties on the proposed assessment methodology to be used in performing its assessment for 2026. For this assessment, DRBC will assess readily available data for a 5-year data window ending September 30, 2025. The Assessment Methodology proposed is based on the methodology used in the 2024 report, with some revision to the assessment of bacteria data and total dissolved solids.
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The Delaware River Basin Commission (DRBC) will assess waters of the mainstem Delaware River and Delaware Bay to determine whether the river is supporting the designated uses expressed in the Commission’s Administrative Manual Part III, Water Quality Regulations (18 CFR Part 410). DRBC’s Water Quality Regulations can be found at http://www.nj.gov/drbc/library/documents/WQregs.pdf.
The DRBC is soliciting comments and input from interested parties on the proposed assessment methodology to be used in performing its assessment for 2026. For this assessment, DRBC will assess readily available data for a 5-year data window ending September 30, 2025. The Assessment Methodology proposed is based on the methodology used in the 2024 report, with some revision to the assessment of bacteria data and total dissolved solids.
Contact Information
*Indicates Required Fields