Water Quality in District of Columbia

4 water systems • 1 cities • EPA SDWIS Data

4
Water Systems
115
Total Violations
23
Health-Based Violations
667,325
Population Served

Overview

District of Columbia ranks 49th among all U.S. states for total drinking water violations, out of 51 states tracked. The state has 115 EPA Safe Drinking Water Act violations on record across 4 water systems serving 1 city. Of those, 23 are health-based violations, meaning a regulated contaminant was measured above the EPA-established safe level. District of Columbia's total violation count is 100% below the national average. Water systems in District of Columbia serve approximately 667,325 people. The most frequently cited contaminants in District of Columbia violations include Disinfection Byproducts, Bromate, E. coli, TTHM, Fecal Coliform.

Cities with Most Violations in District of Columbia

# City Violations Health-Based Water Systems Population
1 Washington 110 22 4 667,325

Largest Cities in District of Columbia

# City Population Violations Water Systems
1 Washington 667,325 110 4

All Cities in District of Columbia

City Population Violations Health Violations Contaminants
Washington 667,325 110 22 Bromate, Disinfection Byproducts, E. coli +2 more

Water Quality in Other States

Alabama 13,972 violations Alaska 73,527 violations Arizona 60,414 violations Arkansas 17,031 violations California 39,276 violations Colorado 42,596 violations Connecticut 28,800 violations Delaware 1,242 violations Florida 36,335 violations Georgia 32,159 violations Hawaii 182 violations Idaho 26,078 violations Illinois 30,544 violations Indiana 18,261 violations Iowa 9,389 violations Kansas 19,480 violations Kentucky 9,427 violations Louisiana 32,039 violations Maine 6,830 violations Maryland 5,321 violations Massachusetts 10,561 violations Michigan 15,820 violations Minnesota 3,784 violations Mississippi 25,296 violations Missouri 25,377 violations Montana 20,202 violations Nebraska 5,134 violations Nevada 8,167 violations New Hampshire 6,968 violations New Jersey 19,332 violations New Mexico 37,115 violations New York 93,834 violations North Carolina 54,399 violations North Dakota 8,431 violations Ohio 61,604 violations Oklahoma 128,472 violations Oregon 0 violations Pennsylvania 199,265 violations Rhode Island 0 violations South Carolina 13,045 violations South Dakota 19,565 violations Tennessee 20,607 violations Texas 263,180 violations Utah 71,655 violations Vermont 12,362 violations Virginia 15,298 violations Washington 54,459 violations West Virginia 81,622 violations Wisconsin 18,533 violations Wyoming 13,783 violations

Data Sources

Drinking water data from the EPA Safe Drinking Water Information System (SDWIS). Only active community water systems (CWS) serving 100+ people are included.

Verify at epa.gov