PlainWater

County profile · EPA SDWIS + UCMR5

Thayer County, Nebraska

11 SDWIS-listed public water systems serve 4,010 people in Thayer County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

11
SDWIS water systems Smaller third of counties
633
Total violations Lower third of counties
100.0%
SDWIS systems w/ a violation Middle third of counties
-
UCMR5 PFAS (none tested) No UCMR5 tests

SDWIS compliance plate

Sheet NE169 · Thayer County 11 sys · 633 viol · #2894/3254

VIOL-SEVERE · HEALTH-HIGH · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-HIGH 79.0% health
  • RANK-BOTTOM #2894/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-SMALL 11 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Thayer County ranks #2,894 of 3,254 counties by people served, and #52 of 93 counties in Nebraska. See methodology · corpus placement.

Thayer County standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 79.0% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Thayer County . Population served ranks #2,894 of 3,254 · #52 of 93 in Nebraska.

Flagged-rate neighbourhood around Thayer County

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

0% 20% 40% 60% 80% 100% Kimball · lowest Blaine · highest Colfax · near Cuming · near 57.1% 100% 100% 100% 100% 100% 100%

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

Water Systems

Compare beyond Nebraska

Mid-flagged peers for Thayer County

Cross-state counties nearest Thayer County on flagged-system share (100.0%) and cumulative violation count (633). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.