PlainWater

Nowata County, Oklahoma

SDWIS compliance plate

Sheet OK105 · Nowata County 12 sys · 3,923 viol · #2342/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-HIGH 48.8% health
  • RANK-LOWER #2342/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-SW SW lead 100%
  • 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, Nowata County ranks #2,342 of 3,254 counties by people served, and #55 of 77 counties in Oklahoma. See methodology · corpus placement.

Nowata 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 48.8% 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 #2,342 of 3,254 · #55 of 77 in Oklahoma.

Flagged-rate neighbourhood around Nowata County

Lowest/highest poles plus in-state counties nearest Nowata 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
Nowata Municipal Authority 3,971 358 Detected
Consolidated RWD #1 Nowata and Rogers Co 1,580 4 -
Nowata Co RWD #7 1,050 265 -
South Coffeyville 790 92 -
Elm Bend RWD Inc 600 807 -
Nowata Co Rw & S Dist #1 500 126 -
Delaware 456 1,086 -
Nowata Co RWD #6 450 202 -
Lenapah Public Works Authority 298 520 -
Nowata County RWD # 3 225 112 -
Nowata Co RWD #2 205 244 -
Nowata Co RWD #5 70 107 -

Compare beyond Oklahoma

Mid-flagged peers for Nowata County

Cross-state counties nearest Nowata County on flagged-system share (100.0%) and cumulative violation count (3,923). 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.