County · Kansas
Douglas County, Kansas: drinking water records
This overview covers 8 ZIP codes and 12 community water systems in Douglas County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Lawrence, City of KS2004503 | 95,256 | 240 | 2 | 0 | 3 ppb |
| University of Kansas KS2004513 | 35,000 | 120 | 1 | 0 | 5.3 ppb |
| Eudora, City of KS2004511 | 6,449 | 60 | 0 | 0 | 0 ppb |
| Baldwin City, City of KS2004510 | 4,882 | 120 | 0 | 0 | 2.3 ppb |
| Douglas Co Rwd 3 KS2004507 | 4,663 | 180 | 2 | 0 | 2.3 ppb |
| Douglas Co Rwd 4 KS2004509 | 3,000 | 240 | 0 | 0 | 0 ppb |
| Douglas Co Rwd 5 KS2004502 | 2,500 | 0 | 0 | 0 | 2.8 ppb |
| Douglas Co Rwd 1 KS2004506 | 1,400 | 0 | 0 | 0 | 1.1 ppb |
| Douglas Co Rwd 2 KS2004508 | 1,163 | 0 | 0 | 0 | 3.4 ppb |
| Lecompton, City of KS2004501 | 592 | 0 | 0 | 0 | 4.8 ppb |
| Douglas Co Rwd 6 KS2004512 | 360 | 0 | 0 | 0 | 0 ppb |
| Public Wholesale WSD 25 KS2004515 | 1 | 0 | 0 | 0 | not reported |
ZIP reports in Douglas County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.