New London County, Connecticut
SDWIS compliance plate
Sheet CT011 · New London County 396 sys · 34,737 viol · #326/3254
VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-LARGE · BOOK-FULL
- VIOL-SEVERE 91.4% flagged
- HEALTH-LOW 13.1% health
- RANK-TOP #326/3254
- PHOTO-FINISH ±0.4 pp
- PFAS-HIGH 62.5% detect
- SRC-GW GW lead 96%
- SYS-LARGE 396 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Tolland County (+ 0.4 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, New London County ranks #326 of 3,254 counties by people served, and #4 of 8 counties in Connecticut. See methodology · corpus placement.
New London County standing, lower-flagged corpus third
Flagged-system rate 91.4% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 13.1% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 62.5% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #326 of 3,254 · #4 of 8 in Connecticut.
Flagged-rate neighbourhood around New London County
Lowest/highest poles plus in-state counties nearest New London County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond Connecticut
Lower-flagged peers for New London County
Cross-state counties nearest New London County on flagged-system share (91.4%) and cumulative violation count (34,737). 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.