Warren County, Ohio
SDWIS compliance plate
Sheet OH165 · Warren County 21 sys · 4,221 viol · #287/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 95.2% flagged
- HEALTH-LOW 6.3% health
- RANK-TOP #287/3254
- PHOTO-FINISH ±0.1 pp
- PFAS-HIGH 60.0% detect
- SRC-GW GW lead 81%
- SYS-SMALL 21 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Seneca County (+ 0.1 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Warren County ranks #287 of 3,254 counties by people served, and #10 of 88 counties in Ohio. See methodology · corpus placement.
Warren County standing, mid-flagged corpus third
Flagged-system rate 95.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 6.3% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 60.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #287 of 3,254 · #10 of 88 in Ohio.
Flagged-rate neighbourhood around Warren County
Lowest/highest poles plus in-state counties nearest Warren County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Warren County | 78,299 | 153 | Clean |
| Western Water Company | 39,508 | 67 | Detected |
| Kings Island PWS | 31,753 | 104 | Detected |
| Lebanon City | 20,700 | 51 | Detected |
| Springboro PWS | 19,263 | 41 | Detected |
| Franklin Public Water System | 17,175 | 171 | Detected |
| Warren Co. Socialville PWS | 13,216 | 4 | Detected |
| South Lebanon City PWS | 6,541 | 100 | Clean |
| Waynesville Village PWS | 4,100 | 41 | Clean |
| Lebanon Correctional Institution | 3,410 | 88 | Clean |
| Morrow Village PWS | 3,360 | 84 | - |
| Otterbein-Lebanon Retreat Center | 1,541 | 113 | - |
| Carlisle City PWS | 1,475 | 62 | - |
| Warren Co. Pennyroyal Area PWS | 950 | 6 | - |
| South Lebanon PWS No 2 | 180 | 0 | - |
| Wayne MHP LP | 175 | 227 | - |
| Warren Co. Sharts Road PWS | 145 | 17 | - |
| Frontier Campground | 100 | 1,580 | - |
| Cookies Market | 100 | 46 | - |
| Caesars Village MHP PWS | 90 | 349 | - |
| Cedar Oaks Wellness Center | 56 | 917 | - |
Compare beyond Ohio
Mid-flagged peers for Warren County
Cross-state counties nearest Warren County on flagged-system share (95.2%) and cumulative violation count (4,221). In-state neighbours stay on the compliance plate above.
Similar flagged-system rate
Nearest cross-state counties by % of SDWIS systems with at least one violation on record.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.