PlainWater

Sherman County, Nebraska

SDWIS compliance plate

Sheet NE163 · Sherman County 10 sys · 347 viol · #3071/3254

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

  • VIOL-SEVERE 90.0% flagged
  • HEALTH-HIGH 74.9% health
  • RANK-BOTTOM #3071/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-SMALL 10 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Sherman County ranks #3,071 of 3,254 counties by people served, and #69 of 93 counties in Nebraska. See methodology · corpus placement.

Sherman 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 74.9% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Sherman County . Population served ranks #3,071 of 3,254 · #69 of 93 in Nebraska.

Flagged-rate neighbourhood around Sherman County

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

0% 20% 40% 60% 80% 100% Kimball · lowest Sherman · 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 Sherman County

Cross-state counties nearest Sherman County on flagged-system share (90.0%) and cumulative violation count (347). 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.