Ulster County, New York
SDWIS compliance plate
Sheet NY111 · Ulster County 445 sys · 40,480 viol · #474/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-LOW · SRC-GW · SYS-LARGE · BOOK-FULL
- VIOL-SEVERE 96.2% flagged
- HEALTH-LOW 1.9% health
- RANK-TOP #474/3254
- PHOTO-FINISH ±0.2 pp
- PFAS-LOW 10.0% detect
- SRC-GW GW lead 92%
- SYS-LARGE 445 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Herkimer County ( -0.2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Ulster County ranks #474 of 3,254 counties by people served, and #19 of 58 counties in New York. See methodology · corpus placement.
Ulster County standing, mid-flagged corpus third
Flagged-system rate 96.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 1.9% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 10.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #474 of 3,254 · #19 of 58 in New York.
Flagged-rate neighbourhood around Ulster County
Lowest/highest poles plus in-state counties nearest Ulster County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond New York
Mid-flagged peers for Ulster County
Cross-state counties nearest Ulster County on flagged-system share (96.2%) and cumulative violation count (40,480). 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.