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County profile · EPA SDWIS + UCMR5

Henderson County, Kentucky

6 SDWIS-listed public water systems serve 51,331 people in Henderson County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

6
SDWIS water systems Smaller third of counties
1,467
Total violations Middle third of counties
100.0%
SDWIS systems w/ a violation Middle third of counties
0.0%
UCMR5 PFAS rate (2 tested) Lower third of counties with tests

SDWIS compliance plate

Sheet KY101 · Henderson County 6 sys · 1,467 viol · #942/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-CLEAN · SRC-SW · SYS-TINY · BOOK-FULL

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 3.8% health
  • RANK-UPPER #942/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-SW SW lead 67%
  • SYS-TINY 6 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Henderson County ranks #942 of 3,254 counties by people served, and #20 of 118 counties in Kentucky. See methodology · corpus placement.

Henderson 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 3.8% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #942 of 3,254 · #20 of 118 in Kentucky.

Flagged-rate neighbourhood around Henderson County

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

0% 20% 40% 60% 80% 100% Ballard · lowest Robertson · highest Fayette · near Warren · near 83.3% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Henderson Water Utility/North 31,705 74 Clean
Henderson County Water District 17,447 47 Clean
Ellis Park Race Course 1,500 554 -
Century Aluminum Sebree LLC 600 450 -
Henderson Water Utility/South 54 298 -
Trocadero Plaza 25 44 -

Compare beyond Kentucky

Mid-flagged peers for Henderson County

Cross-state counties nearest Henderson County on flagged-system share (100.0%) and cumulative violation count (1,467). 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. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.