At a June 26, 2024 MWRA Board of Directors meeting, final FY25 Water and Sewer Assessments recommended by the Administration, Finance, & Audit Committee were approved. Combined FY25 assessments increased $21.22 million, or 2.54%, from FY24. This entails an $11.7 million, or 3.9%, increase of water assessments and a $9.52 million, or 1.8%, increase of sewer assessments. Water and sewer system assessments for FY25 were $311.38 million and $544.1 million respectively.
The MWRA water Rate Revenue Requirement for FY25 is $311.4 million, an increase from $299.7 in FY24. The increase is primarily due to increased debt service related to water system rehabilitation and improvements. Each community’s water assessment is calculated by apportioning the water rate revenue requirement against that community’s total water use for the calendar year. FY25 water assessments are based on a community’s share of CY23 water use, which was 62.387 billion gallons. This is a decrease of 5.6% from CY22, which saw 66.065 billion gallons used.
The MWRA sewer Rate Revenue Requirement for FY25 is $544.1 million, an increase from $534.6 million in FY24. The increase is primarily due to increased debt service related to sewer system rehabilitation and improvements. Sewer assessments are allocated according to a community’s share of average wastewater flow, census population, sewered population, maximum wastewater flow, share of wastewater flow (total suspended solids), and strength of flow (biochemical oxygen demand).
The FY25 assessment increase will have an estimated impact of $16 on the average household water and sewer bill for households within a fully served MWRA community.
