PlainWater

Webster County, Missouri

SDWIS compliance plate

Sheet MO225 · Webster County 29 sys · 2,150 viol · #1765/3254

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

  • VIOL-SEVERE 89.7% flagged
  • HEALTH-MID 23.6% health
  • RANK-MID #1765/3254
  • PHOTO-FINISH ±0.8 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 29 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Madison County ( -0.8 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Webster County ranks #1,765 of 3,254 counties by people served, and #48 of 115 counties in Missouri. See methodology · corpus placement.

Webster County standing, lower-flagged corpus third

Flagged-system rate 89.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 23.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,765 of 3,254 · #48 of 115 in Missouri.

Flagged-rate neighbourhood around Webster County

Lowest/highest poles plus in-state counties nearest Webster County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Shannon · lowest Madison · near Miller · near Mercer · highest 69.6% 88.2% 88.9% 89.7% 90.6% 90.7% 100%

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

Water Systems

Compare beyond Missouri

Lower-flagged peers for Webster County

Cross-state counties nearest Webster County on flagged-system share (89.7%) and cumulative violation count (2,150). 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.