PlainWater

Grant County, Oklahoma

SDWIS compliance plate

Sheet OK053 · Grant County 10 sys · 3,596 viol · #2883/3254

VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 9.0% health
  • RANK-BOTTOM #2883/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 90%
  • SYS-SMALL 10 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, Grant County ranks #2,883 of 3,254 counties by people served, and #69 of 77 counties in Oklahoma. See methodology · corpus placement.

Grant 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 9.0% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Grant County . Population served ranks #2,883 of 3,254 · #69 of 77 in Oklahoma.

Flagged-rate neighbourhood around Grant County

Lowest/highest poles plus in-state counties nearest Grant 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
Medford 1,172 161 -
Pond Creek 982 55 -
Lamont 417 937 -
R&c Water Corp 400 77 -
Wakita 344 125 -
Nash 224 483 -
SW Water Inc 200 57 -
Deer Creek 147 1,065 -
Manchester 104 526 -
Grant County RWD #1 100 110 -

Compare beyond Oklahoma

Mid-flagged peers for Grant County

Cross-state counties nearest Grant County on flagged-system share (100.0%) and cumulative violation count (3,596). 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.