PlainWater

Monroe County, Ohio

SDWIS compliance plate

Sheet OH111 · Monroe County 6 sys · 451 viol · #2175/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-TINY · BOOK-FULL

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 17.1% health
  • RANK-LOWER #2175/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 67%
  • SYS-TINY 6 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Cuyahoga County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Monroe County ranks #2,175 of 3,254 counties by people served, and #83 of 88 counties in Ohio. See methodology · corpus placement.

Monroe County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 17.1% 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 #2,175 of 3,254 · #83 of 88 in Ohio.

Flagged-rate neighbourhood around Monroe County

Lowest/highest poles plus in-state counties nearest Monroe County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Fayette · lowest Vinton · highest Lorain · near Clermont · near 78.6% 100% 100% 100% 100% 100% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Monroe Water Systems 4,334 60 Clean
Woodsfield Village PWS 2,598 137 -
Switzerland of Ohio Water 2,500 10 -
Switzer Water Association 1,493 38 -
Ohio and Lee Twp Water Authority 1,301 48 -
Clarington Village PWS 384 158 -

Compare beyond Ohio

Mid-flagged peers for Monroe County

Cross-state counties nearest Monroe County on flagged-system share (100.0%) and cumulative violation count (451). 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.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

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.