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County profile · EPA SDWIS + UCMR5

Sarpy County, Nebraska

39 SDWIS-listed public water systems serve 58,403 people in Sarpy County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

39
SDWIS water systems Larger third of counties
1,069
Total violations Middle third of counties
76.9%
SDWIS systems w/ a violation Lower third of counties
0.0%
UCMR5 PFAS rate (3 tested) Lower third of counties with tests

SDWIS compliance plate

Sheet NE153 · Sarpy County 39 sys · 1,069 viol · #858/3254

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

  • VIOL-SEVERE 76.9% flagged
  • HEALTH-HIGH 53.0% health
  • RANK-UPPER #858/3254
  • PHOTO-FINISH ±0.9 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 79%
  • SYS-SMALL 39 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Cherry County (+ 0.9 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Sarpy County ranks #858 of 3,254 counties by people served, and #4 of 93 counties in Nebraska. See methodology · corpus placement.

Sarpy County standing, lower-flagged corpus third

Flagged-system rate 76.9% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 53.0% 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 #858 of 3,254 · #4 of 93 in Nebraska.

Flagged-rate neighbourhood around Sarpy County

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

0% 20% 40% 60% 80% 100% Kimball · lowest Douglas · near Cherry · near Blaine · highest 57.1% 75% 75.5% 76.9% 77.8% 78.4% 100%

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

Water Systems

Compare beyond Nebraska

Lower-flagged peers for Sarpy County

Cross-state counties nearest Sarpy County on flagged-system share (76.9%) and cumulative violation count (1,069). 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.