County · Missouri
Boone County, Missouri: drinking water records
This overview covers 11 ZIP codes and 16 community water systems in Boone 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 |
|---|---|---|---|---|---|
| City of Columbia Utilities MO3010181 | 126,254 | 60 | 0 | 0 | 2.1 ppb |
| University of Missouri Columbia MO3069001 | 40,000 | 300 | 0 | 0 | 2.9 ppb |
| Boone County Cons Pwsd 1 MO3024055 | 24,700 | 780 | 0 | 0 | 3.5 ppb |
| Boone County Pwsd 9 MO3024058 | 15,035 | 300 | 0 | 0 | 2.8 ppb |
| Boone County Pwsd 4 MO3024052 | 6,455 | 360 | 0 | 0 | 9.3 ppb |
| Ashland PWS MO3010033 | 4,999 | 120 | 0 | 0 | 2.8 ppb |
| Boone County Pwsd 10 MO3024059 | 4,963 | 240 | 0 | 0 | 2.4 ppb |
| Centralia PWS MO3010152 | 4,027 | 60 | 0 | 0 | 1.3 ppb |
| Magnolia-Utility Service of Lake Charles LA1019024 | 306 | 0 | 0 | 4 | 1 ppb |
| Magnolia-Brigas Estates LA1019001 | 294 | 0 | 0 | 4 | 1 ppb |
| Cs Los Cerros Water Company INC AZ0410128 | 2,613 | 0 | 0 | 0 | 0 ppb |
| Hallsville PWS MO3010340 | 1,732 | 0 | 0 | 0 | 2.8 ppb |
| Sturgeon PWS MO3010771 | 945 | 0 | 0 | 0 | 1.6 ppb |
| Magnolia-Lake Street LA1019091 | 651 | 0 | 0 | 0 | 0 ppb |
| Kuhle H20 MO3036153 | 450 | 0 | 0 | 0 | 0 ppb |
| Green Hills MHP MO3048033 | 195 | 0 | 0 | 0 | 5.4 ppb |
ZIP reports in Boone 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.