Fairfield County, Ohio
SDWIS compliance plate
Sheet OH045 · Fairfield County 75 sys · 6,414 viol · #575/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL
- VIOL-SEVERE 89.3% flagged
- HEALTH-LOW 12.5% health
- RANK-TOP #575/3254
- PHOTO-FINISH ±0.1 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 100%
- SYS-MID 75 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Richland County ( -0.1 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Fairfield County ranks #575 of 3,254 counties by people served, and #23 of 88 counties in Ohio. See methodology · corpus placement.
Fairfield County standing, lower-flagged corpus third
Flagged-system rate 89.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #575 of 3,254 · #23 of 88 in Ohio.
Flagged-rate neighbourhood around Fairfield County
Lowest/highest poles plus in-state counties nearest Fairfield County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond Ohio
Lower-flagged peers for Fairfield County
Cross-state counties nearest Fairfield County on flagged-system share (89.3%) and cumulative violation count (6,414). 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.