Documents

Regional Water Supply Status Fact Sheet

Fact sheet describes water supply status, defines drought conditions, and summarizes drought response.

Regional Climate and Energy Action Plans (2010 - 2020)

The 2010 – 2020 Regional Climate and Energy Action Plans served as a tool to help the region work toward its regional greenhouse gas emission reduction goals.

Potomac River Sheen Incident After-Action Report and Improvement Plan

Summary from the After-Action Conference focusing on the regional response to the November/December 2016 incident.

2006 Metro Washington Water Redundancy Study

Environmental Justice Toolkit

Guidance to policymakers on incorporating social equity, cultural sensitivity, and community health considerations into air quality, climate, and energy planning.

Air Quality Conformity Analysis of the 2016 CLRP Amendment and the FY 2017-2022 TIP

This report documents the assessment of the 2016 Amendment to the CLRP and the FY 2017-2022 TIP with respect to air quality conformity requirements under the 1990 Clean Air Act Amendments. The analysis used criteria and procedures contained in the Environmental Protection Agency's final conformity rule, published in the November 24, 1993 Federal Register, with subsequent amendments and additional federal guidance published by EPA and by the Federal Highway Administration and the Federal Transit Administration. The analysis is a responsibility of the Transportation Planning Board.

Washington DC-MD-VA 2008 Ozone NAAQS Marginal Nonattainment Area Redesignation Request and Maintenance Plan

The District of Columbia, the State of Maryland, and the Commonwealth of Virginia request that the United States Environmental Protection Agency (USEPA) redesignate the Washington DC-MD-VA 2008 ozone National Ambient Air Quality Standard (NAAQS) marginal nonattainment are to attainment for this standard pursuant to the provisions under § 107 of the federal Clean Air Act (CAA).

Chain Bridge Monitoring Fact Sheet

A one page summary about COG's Chain Bridge water quality monitoring program.

Chain Bridge Data Analysis Report

This report compares the long term loads and load trends estimated by WRTDS with those estimated by the dense sampling-based direct method that OWML uses.

Tree Canopy Management Strategy

The purpose of the Regional Tree Canopy Management Strategy is to provide COG members with a framework of policies and recommendations that can be used to address challenges and threats to urban forests and to maximize its capacity to deliver benefits and services to our communities, while minimizing associated risks.