PlainWater
Counties → Arkansas

Washington County, Arkansas

SDWIS compliance plate

Sheet AR143 · Washington County 29 sys · 647 viol · #348/3254

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

  • VIOL-SEVERE 96.6% flagged
  • HEALTH-MID 33.8% health
  • RANK-TOP #348/3254
  • PHOTO-FINISH ±0.7 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-SW SW lead 97%
  • SYS-SMALL 29 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Carroll County ( -0.7 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Washington County ranks #348 of 3,254 counties by people served, and #3 of 75 counties in Arkansas. See methodology · corpus placement.

Washington County standing, mid-flagged corpus third

Flagged-system rate 96.6% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 33.8% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #348 of 3,254 · #3 of 75 in Arkansas.

Flagged-rate neighbourhood around Washington County

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

0% 20% 40% 60% 80% 100% Pulaski · lowest Baxter · near Carroll · near Madison · highest 74.2% 94.1% 94.5% 95.2% 95.8% 96.6% 100%

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

Water Systems

System Name Population Violations PFAS
Fayetteville Waterworks 116,398 7 Clean
Washington Water Authority Wwa 20,140 82 Clean
Madison Co Water Facilities Bd 11,435 17 Clean
Prairie Grove Waterworks 9,615 52 Clean
Tontitown Waterworks 7,355 42 Clean
Lincoln Waterworks 6,690 57 Clean
Mount Olive Water Association 6,308 39 Clean
Elkins Waterworks 3,905 66 Clean
West Fork Waterworks 3,178 10 -
Veterans Health Care System of the Ozark 2,254 10 -
Winslow Waterworks 1,433 35 -
Primo Refill Springdale Wal-Ma54 60 19 -
Benton-Washington Regional PWA 30 44 -
Brentwood Rest Area Wvm 30 42 -
Primo Glacier Onf Fayetteville 30 13 -
Primo Hf124 Fayetteville 30 10 -
Primo Wmnm5737 Fayetteville 30 0 -
Glacier Hm1 Springdale 30 17 -
Primo Wmnm7242 Farmington 30 2 -
Primo Wmnm4375 Springdale 30 4 -
Nws Inc Wf0330 Fayetteville 30 4 -
Primo Glacier Hcp108 30 2 -
Primo Glacier Otw5 Fayetteville 30 4 -
Primo Glacier Hf115 Elkins 30 7 -
Primo Refill Fayetteville Wal144 30 23 -
Primo Refill Fayetteville Wal359 30 6 -
Primo Wmnm2745 Fayetteville 30 6 -
Primo Refill Harp's 119 Springdale 30 17 -
Primo Refill Nmkt2742 Springdale 30 10 -

Compare beyond Arkansas

Mid-flagged peers for Washington County

Cross-state counties nearest Washington County on flagged-system share (96.6%) and cumulative violation count (647). 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

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

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.