PlainWater

Sullivan County, Tennessee

SDWIS compliance plate

Sheet TN163 · Sullivan County 18 sys · 1,254 viol · #346/3254

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

  • VIOL-SEVERE 94.4% flagged
  • HEALTH-LOW 10.6% health
  • RANK-TOP #346/3254
  • PHOTO-FINISH ±0.7 pp
  • PFAS-MID 33.3% detect
  • SRC-GW GW lead 56%
  • SYS-SMALL 18 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Sullivan County ranks #346 of 3,254 counties by people served, and #10 of 95 counties in Tennessee. See methodology · corpus placement.

Sullivan County standing, mid-flagged corpus third

Flagged-system rate 94.4% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 10.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #346 of 3,254 · #10 of 95 in Tennessee.

Flagged-rate neighbourhood around Sullivan County

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

0% 20% 40% 60% 80% 100% Haywood · lowest Lawrence · near Sullivan · this county Hancock · highest 40% 92.3% 92.3% 93.8% 94.4% 95.2% 100%

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

Water Systems

Compare beyond Tennessee

Mid-flagged peers for Sullivan County

Cross-state counties nearest Sullivan County on flagged-system share (94.4%) and cumulative violation count (1,254). 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.