PlainWater

Nemaha County, Nebraska

SDWIS compliance plate

Sheet NE127 · Nemaha County 11 sys · 409 viol · #2568/3254

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

  • VIOL-SEVERE 90.9% flagged
  • HEALTH-HIGH 66.0% health
  • RANK-LOWER #2568/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 82%
  • SYS-SMALL 11 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Nemaha County ranks #2,568 of 3,254 counties by people served, and #33 of 93 counties in Nebraska. See methodology · corpus placement.

Nemaha County standing, lower-flagged corpus third

Flagged-system rate 90.9% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 66.0% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #2,568 of 3,254 · #33 of 93 in Nebraska.

Flagged-rate neighbourhood around Nemaha County

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

0% 20% 40% 60% 80% 100% Kimball · lowest Platte · near Washington · near Blaine · highest 57.1% 90% 90.6% 90.9% 90.9% 91.7% 100%

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

Water Systems

System Name Population Violations PFAS
Auburn, City Of 3,478 8 Detected
Nemaha Co RWD #2 1,011 28 -
Peru, City Of 650 36 -
Nemaha Co RWD 1 600 47 -
Nebraska Public Power District - Cooper 600 13 -
Duck Creek Recreation Area 400 0 -
Johnson, Village Of 328 46 -
Brownville, Village Of 142 92 -
Brock, Village Of 137 73 -
Nemaha, Village Of 122 41 -
Julian, Village Of 45 25 -

Compare beyond Nebraska

Lower-flagged peers for Nemaha County

Cross-state counties nearest Nemaha County on flagged-system share (90.9%) and cumulative violation count (409). 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.