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Counties → Texas

Ellis County, Texas

SDWIS compliance plate

Sheet TX139 · Ellis County 34 sys · 2,967 viol · #276/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 32.8% health
  • RANK-TOP #276/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 80.0% detect
  • SRC-SW SW lead 50%
  • SYS-SMALL 34 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Ellis County ranks #276 of 3,254 counties by people served, and #25 of 254 counties in Texas. See methodology · corpus placement.

Ellis 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 32.8% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 80.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #276 of 3,254 · #25 of 254 in Texas.

Flagged-rate neighbourhood around Ellis County

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

0% 20% 40% 60% 80% 100% Howard · lowest Bee · highest Hidalgo · near Taylor · near 66.7% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
City of Waxahachie 50,814 41 Detected
Rockett Sud 46,614 43 Detected
City of Midlothian 27,699 35 Detected
City of Ennis 24,891 1 Detected
Mountain Peak Sud 23,988 90 Detected
Sardis Lone Elm WSC 20,736 17 Detected
City of Red Oak 18,577 75 Detected
Buena Vista Bethel Sud 8,218 12 Clean
City of Ovilla 4,532 87 Detected
City of Ferris 3,070 95 -
City of Palmer 3,015 114 -
Nash Forreston WSC 2,277 47 -
City of Italy 2,264 58 -
Ellis County Fwsd 1 1,812 4 -
South Ellis County Water Supply 1,767 57 -
East Garrett WSC 1,521 42 -
Avalon WSC 1,218 56 -
Lakeview Camp and Conference Center 1,100 8 -
City of Maypearl 994 73 -
Garrett Community Water Company 864 10 -
City of Milford 796 110 -
Rural Bardwell WSC 756 434 -
City of Bardwell 747 332 -
Buffalo Hills Water System 531 11 -
Grande Casa 501 131 -
Ash Grove Cement 360 12 -
Spanish Grant Subdivision 333 94 Clean
Lakeview Ranchettes 318 77 -
Red Oak Community Water Service 280 129 -
Lakeview Water System 216 22 -
Chambers Meadow Estate Water 198 4 -
Emerald Forest 158 79 -
Howard Water Coop 117 497 -
Coming of Christ Full Gospel Church 66 70 -

Compare beyond Texas

Mid-flagged peers for Ellis County

Cross-state counties nearest Ellis County on flagged-system share (100.0%) and cumulative violation count (2,967). 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

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

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.