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County profile · EPA SDWIS + UCMR5

Sevier County, Utah

34 SDWIS-listed public water systems serve 22,920 people in Sevier County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.

34
SDWIS water systems Middle third of counties
4,309
Total violations Upper third of counties
100.0%
SDWIS systems w/ a violation Middle third of counties
0.0%
UCMR5 PFAS rate (1 tested) Lower third of counties with tests

SDWIS compliance plate

Sheet UT041 · Sevier County 34 sys · 4,309 viol · #1656/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 7.8% health
  • RANK-MID #1656/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 94%
  • SYS-SMALL 34 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Sevier County ranks #1,656 of 3,254 counties by people served, and #14 of 29 counties in Utah. See methodology · corpus placement.

Sevier 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 7.8% 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 #1,656 of 3,254 · #14 of 29 in Utah.

Flagged-rate neighbourhood around Sevier County

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

0% 20% 40% 60% 80% 100% Grand · lowest Piute · highest Weber · near Sanpete · near 85.7% 100% 100% 100% 100% 100% 100%

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

Water Systems

Compare beyond Utah

Mid-flagged peers for Sevier County

Cross-state counties nearest Sevier County on flagged-system share (100.0%) and cumulative violation count (4,309). 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.