Click the links below to download and view these documents.

Mission Statement

Consent Decree Executive Summary

The Consent Decree between the United States of America, the State of Tennessee, and the Metropolitan Government of Nashville and Davidson County was approved and entered with the United States District Court for the Middle District of Tennessee in March 2009.

Consent Decree

The legally binding document that represents the result of negotiations between EPA, the State of Tennessee, and MWS, specifying the activities and timetables required to address combined and separate sewer overflows in Metro Nashville.

Corrective Action Plan/Engineering Report (CAP/ER) - September 2011

CAP/ER Addendum - September 2017

CAP/ER Addendum 2 - August 2019

CAP/ER Update - June 2021

The Corrective Action Plan/Engineering Report presents the approach used to characterize Metro's sanitary sewer system and to evaluate potential alternatives for improvements to the system's hydraulic limitations. A map of Nashville’s Consent Decree-related sanitary sewer overflows can be found here.

Long Term Control Plan (LTCP) - September 2011

LTCP Addendum - June 2018

LTCP Addendum 2 - July 2020

Revised LTCP - 2024

The Long Term Control Plan Update presents a characterization of Metro's combined sewer system and the recommended improvements to reduce the occurrence of combined sewer overflows (CSOs) and their impact on the Cumberland River. A map of Nashville’s combined sewer system and overflow discharge locations can be found here.

Program Management Plan 

Design Management Manual

The Design Management Manual provides guidelines for design services on Clean Water Nashville Overflow Abatement Program projects. The Design Management Manual supports a systematic approach for planning and executing projects to ensure that the design and construction work products conform to MWS' requirements.

The Appendices below provide additional details regarding design standards and processes for the Program.

Standard Specifications

The Technical Specifications, Divisions 01-48, posted on this website are for general information purposes only. The information is provided by the Clean Water Nashville Overflow Abatement Program, and, while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

Construction Management Manual 

Quality Management Plan

Metro Safety Manual

Green Infrastructure Master Plan

This study assesses the potential impact of green infrastructure in the combined sewer system, including the identification of possible green infrastructure sites and pilot projects.

Central Wastewater Treatment Plant Improvements   

Mill Creek Trunk Improvements and Equalization Facility

 Combined Sewer System Flooding Master Plan