PlainWater

Coal County, Oklahoma

SDWIS compliance plate

Sheet OK029 · Coal County 8 sys · 1,205 viol · #2892/3254

VIOL-SEVERE · HEALTH-MID · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-SW · SYS-TINY · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 33.2% health
  • RANK-BOTTOM #2892/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-SW SW lead 75%
  • SYS-TINY 8 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Coal County ranks #2,892 of 3,254 counties by people served, and #70 of 77 counties in Oklahoma. See methodology · corpus placement.

Coal 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 33.2% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Coal County . Population served ranks #2,892 of 3,254 · #70 of 77 in Oklahoma.

Flagged-rate neighbourhood around Coal County

Lowest/highest poles plus in-state counties nearest Coal 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
Coalgate PWA 2,005 392 -
Lehigh 396 51 -
Tupelo PWA 377 41 -
Coal Co RWD #5 366 54 -
Clarita-Olney RWD 360 92 -
Roundhill RWD #4 219 97 -
Coal Co Rw&swmg #6 150 347 -
Phillips RWD #1 140 131 -

Compare beyond Oklahoma

Mid-flagged peers for Coal County

Cross-state counties nearest Coal County on flagged-system share (100.0%) and cumulative violation count (1,205). 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.