Document Category Archives

MWRA CSO MAP

This is the Massachusetts Water Resources Authority map from 2016, which we believe has not changed as of 2023. It shows active CSOs as green dots. CSOs with 25-year level of control as orange dots, CSOs with treatment facilities as green dots with yellow outlines, and closed CSOs as red dots. There are six UNTREATEDContinue reading “MWRA CSO MAP”

Somerville Stormwater Map

Dated June 15, 2020. Awesome map of Somerville stormwater, combined system, and sanitary system. Includes: Storm Discharge Points, CSO Outfalls, MBTA Connections, Stormwater Manholes, Sanitary and Combined Manholes, Separate Stormwater Drainage System, Sanitary and Combined Sewer System, Separate Drainage Area

MWRA Final CSO Performance Assessment Hearing Notification

Massachusetts Water Resources Authority PRESS RELEASE Date: January 6, 2022 Contact: Ria Convery (617) 788-1105, ria.convery@mwra.com Public Briefing on MWRA’s CSO Post-Construction Monitoring and Performance Assessment, Final Report The Massachusetts Water Resources Authority (MWRA) will hold a virtual public briefing on the findings of its Combined Sewer Overflow (CSO) Post-Construction Monitoring and Performance Assessment on Thursday, FebruaryContinue reading “MWRA Final CSO Performance Assessment Hearing Notification”

MWRA 2021 Final CSO Performance Assessment

MWRA CSO Report is Unfair to Alewife’s Environmental Justice Populations On December 30, 2021, the Massachusetts Water Resource Authority (MWRA) published its anticipated Final CSO Performance Assessment, as part of a series of regulatory reports that have been submitted to the U.S. Environmental Protection Agency (EPA) and the Massachusetts Department of Environmental Protection. These reports areContinue reading “MWRA 2021 Final CSO Performance Assessment”

Somerville Stormwater Management Map, June 2020

Stormwater Management Map. Includes: Storm Discharge Points, CSO Outfalls, Stormwater Manholes, Sanitary and Combined Manholes, Separate Stormwater, Drainage System, Sanitary and Combined, Sewer System, Separate Drainage Area Alewife Brook Use Impairments: Phosphorus, E. Coli, TSS, Copper and Lead Mystic River Use Impairments: Phosphorus, E. Coli, Fecal Coliform, Petroleum Hydrocarbons, TSS, Copper and Lead

MWRA BIANNUAL COMPLIANCE AND PROGRESS REPORT AS OF JUNE 25, 2021

CIVIL ACTION No. 85-0489-RGS UNITED STATES DISTRICT COURT for the DISTRICT OF MASSACHUSETTS UNITED STATES OF AMERICA, Plaintiff, . v. METROPOLITAN DISTRICT COMMISSION, . et al., Defendants. . CIVIL ACTION No. 83-1614-RGS CONSERVATION LAW FOUNDATION OF . NEW ENGLAND, INC., Plaintiff, . v. METROPOLITAN DISTRICT COMMISSION, Defendants. . This is the MWRA BIANNUAL COMPLIANCE ANDContinue reading “MWRA BIANNUAL COMPLIANCE AND PROGRESS REPORT AS OF JUNE 25, 2021”

Somerville’s 2017 Infrastructure Presentation

New projects described here include combined sewer separation, flood control are encouraging. Interesting data about how old Somerville’s sewer infrastructure is and how little work has been done to modernize it in the last hundred years.

Court Case 2016 Document, including Compliance Order 239, USA v. MDC & CLF v. MDC

Doug Foy, Esq., director of the Conservation Law Foundation, who brought the groundbreaking Boston Harbor Clean-up lawsuit, probably quoting an ubran sociologist, said, “A great city had three characteristics: It had world-renown cultural and educational institutions. It had enduring distinctive residential neighborhoods, and it had a body of water that it embraced.”