PlainWater

Monroe County, New York

SDWIS compliance plate

Sheet NY055 · Monroe County 19 sys · 190 viol · #265/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-MID · SRC-GW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 63.2% flagged
  • HEALTH-LOW 12.1% health
  • RANK-TOP #265/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-MID 25.0% detect
  • SRC-GW GW lead 63%
  • SYS-SMALL 19 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Genesee County (+ 0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Monroe County ranks #265 of 3,254 counties by people served, and #11 of 58 counties in New York. See methodology · corpus placement.

Monroe County standing, lower-flagged corpus third

Flagged-system rate 63.2% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 12.1% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 25.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #265 of 3,254 · #11 of 58 in New York.

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% Niagara · lowest Genesee · near Suffolk · near Cortland · highest 38.1% 63.2% 63.3% 79.6% 80.9% 82.6% 100%

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

Water Systems

Compare beyond New York

Lower-flagged peers for Monroe County

Cross-state counties nearest Monroe County on flagged-system share (63.2%) and cumulative violation count (190). 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.