Water systems
U.S. drinking water quality, system by system
Every water system below has its own dedicated page: the full list of contaminants measured in the utility's most recent annual report, each compared to its federal limit. Every figure is transcribed from the utility's own Consumer Confidence Report, cross-checked by a second model, and approved by a person.
29
Water systems
13
States
423
Measurements
Alabama1 system
Arkansas1 system
California3 systems
Florida4 systems
Georgia1 system
Iowa1 system
Kansas1 system
Maryland10 systems
- Avon Crest8 contaminants measured
- Banks O Dee6 contaminants measured· 1 at or above the limit
- Barrelville3 contaminants measured· 1 at or above the limit
- Brophytown Distribution System8 contaminants measured· 1 at or above the limit
- Brunswick8 contaminants measured· 2 at or above the limit
- City of Annapolis8 contaminants measured
- Gramercy4 contaminants measured· 1 at or above the limit
- Metropolitan of Baltimore3 contaminants measured
- Rockville0 contaminants measured
- Town of Denton10 contaminants measured· 1 at or above the limit
Massachusetts2 systems
Minnesota1 system
Nebraska1 system
North Carolina2 systems
Washington1 system
New systems are added as each report clears verification. Every number traces back to the water utility's own published Consumer Confidence Report — a water-quality report covers an entire service area, not a single address.