Jefferson County, West Virginia
SDWIS compliance plate
Sheet WV037 · Jefferson County 43 sys · 14,377 viol · #1250/3254
VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · ABOVE-PEER · PFAS-HIGH · SRC-GW · SYS-MID · BOOK-FULL
- VIOL-SEVERE 97.7% flagged
- HEALTH-LOW 5.7% health
- RANK-UPPER #1250/3254
- ABOVE-PEER +2.0 pp
- PFAS-HIGH 66.7% detect
- SRC-GW GW lead 81%
- SYS-MID 43 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Berkeley County ( -2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Jefferson County ranks #1,250 of 3,254 counties by people served, and #14 of 55 counties in West Virginia. See methodology · corpus placement.
Jefferson County standing, mid-flagged corpus third
Flagged-system rate 97.7% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.7% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 66.7% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,250 of 3,254 · #14 of 55 in West Virginia.
Flagged-rate neighbourhood around Jefferson County
Lowest/highest poles plus in-state counties nearest Jefferson County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
Compare beyond West Virginia
Mid-flagged peers for Jefferson County
Cross-state counties nearest Jefferson County on flagged-system share (97.7%) and cumulative violation count (14,377). 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.