Windham County, Connecticut
SDWIS compliance plate
Sheet CT015 · Windham County 255 sys · 21,628 viol · #804/3254
VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-LARGE · BOOK-FULL
- VIOL-SEVERE 92.2% flagged
- HEALTH-LOW 13.2% health
- RANK-UPPER #804/3254
- PHOTO-FINISH ±0.3 pp
- PFAS-HIGH 100.0% detect
- SRC-GW GW lead 99%
- SYS-LARGE 255 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Tolland County ( -0.3 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Windham County ranks #804 of 3,254 counties by people served, and #7 of 8 counties in Connecticut. See methodology · corpus placement.
Windham County standing, lower-flagged corpus third
Flagged-system rate 92.2% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 13.2% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #804 of 3,254 · #7 of 8 in Connecticut.
Flagged-rate neighbourhood around Windham County
Lowest/highest poles plus in-state counties nearest Windham County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond Connecticut
Lower-flagged peers for Windham County
Cross-state counties nearest Windham County on flagged-system share (92.2%) and cumulative violation count (21,628). 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.