PlainWater

Custer County, Oklahoma

SDWIS compliance plate

Sheet OK039 · Custer County 12 sys · 2,285 viol · #1608/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 25.7% health
  • RANK-MID #1608/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 58%
  • SYS-SMALL 12 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Custer County ranks #1,608 of 3,254 counties by people served, and #34 of 77 counties in Oklahoma. See methodology · corpus placement.

Custer 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 25.7% 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 #1,608 of 3,254 · #34 of 77 in Oklahoma.

Flagged-rate neighbourhood around Custer County

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

0% 20% 40% 60% 80% 100% Murray · lowest Cimarron · highest Payne · near Canadian · near 88.9% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Weatherford 10,833 373 Clean
Clinton 8,883 446 Clean
Thomas 1,238 68 -
Custer County RWD #3 960 8 -
Arapaho 748 81 -
Frontier Development Auth 437 51 -
Custer City PWS 393 9 -
Butler 345 65 -
Country East MHP 97 89 -
Traverse Wind Energy, LLC 75 90 -
Shady Acres Custer County 40 967 -
Foss Reservoir McD 12 38 -

Compare beyond Oklahoma

Mid-flagged peers for Custer County

Cross-state counties nearest Custer County on flagged-system share (100.0%) and cumulative violation count (2,285). 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.