Iowa
Jefferson County drinking water quality
10 active public water systems serve 61,798 people in Jefferson County. 4 are compliant, 6 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
10 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rathbun Regional Water Assn (rathbun) Centerville |
33,000 | 0 | 0 | |
|
Wapello Rural Water Assoc. Ottumwa |
17,263 | 0 | 0 | |
|
Fairfield Water Supply Fairfield |
9,821 | 1 | 0 | |
|
Jefferson County Rural Water District Fairfield |
468 | 3 | 1 | |
|
Batavia Water Works Batavia |
430 | 1 | 0 | |
|
Libertyville Water Works Libertyville |
304 | 2 | 0 | |
|
Lockridge Muni Water Supply Lockridge |
244 | 0 | 0 | |
|
Fairfield Estates Mobile Home Park Fairfield |
140 | 0 | 0 | |
|
Ila Campus LLC Maharishi Vedic City |
68 | 4 | 2 | |
|
Maharishi Vedic City Water Supply Maharishi Vedic City |
60 | 1 | 0 |
Inactive systems (22, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Iowa records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.