PlainWater

Seward County, Nebraska

SDWIS compliance plate

Sheet NE159 · Seward County 20 sys · 1,155 viol · #2171/3254

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

  • VIOL-SEVERE 90.0% flagged
  • HEALTH-HIGH 69.2% health
  • RANK-LOWER #2171/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 20 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Lincoln County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Seward County ranks #2,171 of 3,254 counties by people served, and #21 of 93 counties in Nebraska. See methodology · corpus placement.

Seward County standing, lower-flagged corpus third

Flagged-system rate 90.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 69.2% is health-based share above the upper 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 #2,171 of 3,254 · #21 of 93 in Nebraska.

Flagged-rate neighbourhood around Seward County

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

0% 20% 40% 60% 80% 100% Kimball · lowest Seward · this county Dakota · near Blaine · highest 57.1% 89.7% 90% 90% 90% 90% 100%

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

Water Systems

Compare beyond Nebraska

Lower-flagged peers for Seward County

Cross-state counties nearest Seward County on flagged-system share (90.0%) and cumulative violation count (1,155). 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.