County · Missouri
Sullivan County, Missouri: drinking water records
This overview covers 7 ZIP codes and 7 community water systems in Sullivan 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 |
|---|---|---|---|---|---|
| Sullivan County Pwsd 1 MO2024594 | 4,412 | 120 | 0 | 0 | 1.1 ppb |
| Milan PWS MO2010523 | 1,759 | 0 | 0 | 1 | 1.1 ppb |
| Green City PWS MO2010329 | 578 | 0 | 0 | 2 | 2.4 ppb |
| Green Castle PWS MO2010328 | 212 | 0 | 0 | 0 | 9.9 ppb |
| Newtown PWS MO2010574 | 109 | 0 | 0 | 0 | 0 ppb |
| Humphreys PWS MO2010389 | 98 | 0 | 0 | 0 | 0 ppb |
| North Central Mo Regional Water Com MO2021537 | 25 | 0 | 0 | 0 | not reported |
ZIP reports in Sullivan 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.