PlainWater

Mayes County, Oklahoma

SDWIS compliance plate

Sheet OK097 · Mayes County 23 sys · 5,289 viol · #1034/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 30.7% health
  • RANK-UPPER #1034/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 50.0% detect
  • SRC-SW SW lead 83%
  • SYS-SMALL 23 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, Mayes County ranks #1,034 of 3,254 counties by people served, and #19 of 77 counties in Oklahoma. See methodology · corpus placement.

Mayes 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 30.7% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,034 of 3,254 · #19 of 77 in Oklahoma.

Flagged-rate neighbourhood around Mayes County

Lowest/highest poles plus in-state counties nearest Mayes 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
Pryor 8,784 34 Clean
Mayes Co RWD # 2 6,280 90 Detected
Mayes Co RWD #4 4,183 44 Detected
Okla Ordnance Works Authority 4,000 91 Detected
Mayes Co RWD # 6 3,750 66 Clean
Mayes Co RWD # 5 3,360 20 Clean
Mayes Co RWD # 9 2,578 375 -
Mayes Co RWD # 3 2,400 228 -
Chouteau 2,100 65 -
Locust Grove 1,600 1,498 -
Salina PWA 1,422 700 -
Langley 950 93 -
Adair 704 232 -
Mayes Co RWD # 7 538 83 -
Mayes Co RWD # 8 450 15 -
Spavinaw 432 87 -
Cedar Crest Country Club 315 43 -
Spring Cove Resorts 225 930 -
Sportsmen Acres 218 135 -
Mabee Scout Reservation 100 32 -
Grand Meadows 94 51 -
Highway 69 Water Dist. (Greer's Sausage) 43 324 -
Lake Shore Park 25 53 -

Compare beyond Oklahoma

Mid-flagged peers for Mayes County

Cross-state counties nearest Mayes County on flagged-system share (100.0%) and cumulative violation count (5,289). 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.