PlainWater

Lonoke County, Arkansas

SDWIS compliance plate

Sheet AR085 · Lonoke County 14 sys · 495 viol · #1047/3254

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

  • VIOL-SEVERE 92.9% flagged
  • HEALTH-MID 25.5% health
  • RANK-UPPER #1047/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 57%
  • SYS-SMALL 14 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Lonoke County ranks #1,047 of 3,254 counties by people served, and #15 of 75 counties in Arkansas. See methodology · corpus placement.

Lonoke County standing, mid-flagged corpus third

Flagged-system rate 92.9% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 25.5% 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 #1,047 of 3,254 · #15 of 75 in Arkansas.

Flagged-rate neighbourhood around Lonoke County

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

0% 20% 40% 60% 80% 100% Pulaski · lowest Lonoke · this county Jefferson · near Madison · highest 74.2% 92.3% 92.9% 92.9% 92.9% 93.3% 100%

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

Water Systems

System Name Population Violations PFAS
Grand Prairie Bayou 2 PWA 13,519 7 Clean
Ward Waterworks 12,579 13 Clean
Lonoke Waterworks 4,277 32 Clean
Austin Waterworks 3,886 29 -
Furlow Public Water Authority 3,073 4 -
England Waterworks 2,477 18 -
Carlisle Waterworks 2,300 6 -
Ammunition Operations, LLC 650 27 -
Keo Water Works 402 93 -
Humnoke Waterworks 292 164 -
Coy Waterworks 225 80 -
Primo Refill LLC Wmsc2587 Cabot 30 16 -
Primo Wmnm6975 Cabot 30 6 -
Lonoke White Public Water Authority 0 0 -

Compare beyond Arkansas

Mid-flagged peers for Lonoke County

Cross-state counties nearest Lonoke County on flagged-system share (92.9%) and cumulative violation count (495). 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.