Local water facts
58 utilities across Virginia, Washington DC, and the Maryland DC metro, each page shows what the utility’s own published tests found above health guidelines (June 2026 EWG Tap Water Database data). Fastest path: type your ZIP on the free report page.
2 million people served
437,994 people served
407,300 people served
350,000 people served
338,006 people served
320,000 people served
292,000 people served
240,000 people served
234,220 people served
229,395 people served
182,700 people served
165,240 people served
156,000 people served
136,409 people served
123,684 people served
97,915 people served
94,588 people served
80,995 people served
72,062 people served
71,078 people served
69,822 people served
57,931 people served
57,726 people served
53,727 people served
53,016 people served
48,019 people served
47,574 people served
46,206 people served
43,055 people served
42,500 people served
34,578 people served
32,326 people served
32,000 people served
30,133 people served
30,000 people served
29,721 people served
28,350 people served
28,248 people served
25,643 people served
25,248 people served
24,601 people served
24,400 people served
22,630 people served
22,000 people served
21,761 people served
21,184 people served
14,600 people served
632,323 people served
1.9 million people served
250,000 people served
91,260 people served
54,000 people served
52,000 people served
43,030 people served
35,000 people served
25,000 people served
23,179 people served
4,371 people served