PlainWater

Madison County, Tennessee

SDWIS compliance plate

Sheet TN113 · Madison County 21 sys · 740 viol · #579/3254

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

  • VIOL-SEVERE 85.7% flagged
  • HEALTH-LOW 15.5% health
  • RANK-TOP #579/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 21 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Madison County ranks #579 of 3,254 counties by people served, and #16 of 95 counties in Tennessee. See methodology · corpus placement.

Madison County standing, lower-flagged corpus third

Flagged-system rate 85.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 15.5% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #579 of 3,254 · #16 of 95 in Tennessee.

Flagged-rate neighbourhood around Madison County

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

0% 20% 40% 60% 80% 100% Haywood · lowest Cumberland · near Chester · near Hancock · highest 40% 85.7% 85.7% 85.7% 85.7% 87.5% 100%

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

Water Systems

Compare beyond Tennessee

Lower-flagged peers for Madison County

Cross-state counties nearest Madison County on flagged-system share (85.7%) and cumulative violation count (740). 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.