PlainWater

Grady County, Oklahoma

SDWIS compliance plate

Sheet OK051 · Grady County 31 sys · 16,093 viol · #1228/3254

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

  • VIOL-SEVERE 96.8% flagged
  • HEALTH-LOW 4.5% health
  • RANK-UPPER #1228/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-MID 33.3% detect
  • SRC-GW GW lead 94%
  • SYS-SMALL 31 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Osage County ( -0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Grady County ranks #1,228 of 3,254 counties by people served, and #25 of 77 counties in Oklahoma. See methodology · corpus placement.

Grady County standing, mid-flagged corpus third

Flagged-system rate 96.8% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 4.5% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #1,228 of 3,254 · #25 of 77 in Oklahoma.

Flagged-rate neighbourhood around Grady County

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

0% 20% 40% 60% 80% 100% Murray · lowest Pottawatomie · near Grady · this county Cimarron · highest 88.9% 96% 96.3% 96.7% 96.8% 97.1% 100%

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

Water Systems

Compare beyond Oklahoma

Mid-flagged peers for Grady County

Cross-state counties nearest Grady County on flagged-system share (96.8%) and cumulative violation count (16,093). 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.