County · Ohio
Jefferson County, Ohio: drinking water records
This overview covers 20 ZIP codes and 18 community water systems in Jefferson 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 |
|---|---|---|---|---|---|
| Steubenville, City of OH4102411 | 17,000 | 120 | 0 | 3 | 2.1 ppb |
| Toronto PWS OH4102811 | 5,676 | 120 | 2 | 1 | 0 ppb |
| Jefferson Co W and S District - M OH4101103 | 13,983 | 120 | 1 | 0 | 0.6 ppb |
| Wintersville Village PWS OH4103003 | 3,924 | 120 | 1 | 0 | 0 ppb |
| Mingo Junction PWS OH4101612 | 3,350 | 0 | 0 | 3 | 1.4 ppb |
| Jefferson Co W and S District- a OH4100803 | 2,635 | 120 | 2 | 0 | 3.9 ppb |
| Brilliant Water and Sewer OH4100412 | 2,000 | 0 | 0 | 1 | 2.1 ppb |
| Yorkville Village PWS OH4103112 | 1,019 | 0 | 0 | 1 | 2.9 ppb |
| Jefferson Co W&s District- J OH4101003 | 896 | 0 | 0 | 2 | 0.8 ppb |
| Warren Water Authority OH4102903 | 481 | 0 | 0 | 2 | 0 ppb |
| Mount Pleasant PWS OH4101712 | 450 | 0 | 0 | 2 | 1.5 ppb |
| Rayland Village PWS OH4101803 | 417 | 0 | 0 | 1 | 0 ppb |
| Stratton PWS OH4102512 | 320 | 0 | 0 | 1 | 0 ppb |
| Tiltonsville PWS OH4102712 | 1,372 | 0 | 0 | 0 | 0.5 ppb |
| Jefferson Co.San.Dist.-G PWS OH4100903 | 990 | 0 | 0 | 0 | 1.2 ppb |
| Adena Village PWS OH4100003 | 820 | 0 | 0 | 0 | 3.4 ppb |
| Dillonvale OH4100512 | 665 | 0 | 0 | 0 | 2.4 ppb |
| Jefferson Co W&s District- O OH4101203 | 340 | 0 | 0 | 0 | 3.6 ppb |
ZIP reports in Jefferson 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.