County · South Dakota
Lincoln County, South Dakota: drinking water records
This overview covers 9 ZIP codes and 9 community water systems in Lincoln 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 |
|---|---|---|---|---|---|
| Minnehaha Community Water Corp SD4600432 | 13,435 | 120 | 0 | 0 | 1 ppb |
| Harrisburg SD4600148 | 10,297 | 120 | 1 | 0 | 1 ppb |
| Tea SD4600409 | 7,381 | 60 | 0 | 0 | 1 ppb |
| Lincoln County Rural Water System SD4600304 | 5,965 | 120 | 1 | 0 | 2 ppb |
| South Lincoln Rural Water System SD4600870 | 5,250 | 120 | 0 | 0 | 1 ppb |
| Worthing SD4600377 | 939 | 0 | 0 | 2 | 1 ppb |
| Canton SD4600082 | 3,066 | 0 | 0 | 0 | 3 ppb |
| Lennox SD4600193 | 2,571 | 0 | 0 | 0 | 1 ppb |
| Hudson SD4600166 | 332 | 0 | 0 | 0 | 4 ppb |
ZIP reports in Lincoln 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.