County · Illinois
Adams County, Illinois: drinking water records
This overview covers 16 ZIP codes and 20 community water systems in Adams 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 |
|---|---|---|---|---|---|
| Quincy IL0010650 | 42,000 | 120 | 2 | 0 | 2 ppb |
| Abs Water Coop IL0015350 | 6,858 | 300 | 0 | 0 | 0 ppb |
| Mill Creek Pwd IL0015300 | 5,755 | 60 | 0 | 0 | 1.8 ppb |
| Clayton-Camp Point Water Commission IL0015200 | 2,470 | 0 | 0 | 1 | 0 ppb |
| Camp Point IL0010050 | 1,190 | 0 | 0 | 3 | 0.6 ppb |
| Mendon IL0010500 | 953 | 60 | 0 | 0 | 1.3 ppb |
| Loraine IL0010450 | 300 | 0 | 0 | 1 | 14.7 ppb |
| Lima IL0010400 | 168 | 0 | 0 | 2 | 0 ppb |
| La Prairie IL0010300 | 47 | 0 | 0 | 1 | 0 ppb |
| Payson IL0010550 | 1,386 | 0 | 0 | 0 | 1.7 ppb |
| Adams County Water District No 1 IL0015150 | 833 | 0 | 0 | 0 | 0 ppb |
| Clayton IL0010100 | 709 | 0 | 0 | 0 | 0 ppb |
| Ursa IL0010700 | 626 | 0 | 0 | 0 | 0 ppb |
| Golden IL0010250 | 620 | 0 | 0 | 0 | 0 ppb |
| Liberty IL0010350 | 609 | 0 | 0 | 0 | 0 ppb |
| Il Veterans Home (Quincy) IL0015500 | 401 | 0 | 0 | 0 | 0 ppb |
| Plainville IL0010600 | 264 | 0 | 0 | 0 | 3 ppb |
| Expressway MHP IL0015545 | 98 | 0 | 0 | 0 | 4.6 ppb |
| Camp Deep Lake LLC WI7010113 | 75 | 0 | 0 | 0 | 6.7 ppb |
| Clayton Work Camp IL0010150 | 83 | 0 | 0 | 0 | not reported |
ZIP reports in Adams 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.