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Counties → Texas

Harrison County, Texas

SDWIS compliance plate

Sheet TX203 · Harrison County 34 sys · 4,093 viol · #716/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 20.6% health
  • RANK-UPPER #716/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 60.0% detect
  • SRC-GW GW lead 85%
  • 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, Harrison County ranks #716 of 3,254 counties by people served, and #52 of 254 counties in Texas. See methodology · corpus placement.

Harrison 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 20.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 60.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #716 of 3,254 · #52 of 254 in Texas.

Flagged-rate neighbourhood around Harrison County

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

0% 20% 40% 60% 80% 100% Howard · lowest Bee · highest Hidalgo · near Guadalupe · 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 Marshall 23,091 145 Detected
Gum Springs WSC 2 7,815 39 Clean
Leigh WSC-Rural 6,164 52 Clean
City of Hallsville 5,580 42 Detected
Harleton WSC 4,107 106 Detected
Gum Springs WSC 1 3,564 35 -
City of Waskom 2,923 8 -
Gill WSC 2,640 91 -
Eastman Chemical Company Texas Operation 2,016 34 -
West Harrison WSC 1,845 35 -
Blocker Crossroads WSC 1,836 114 -
Talley WSC 1,737 98 -
North Harrison WSC 1,575 80 -
Caddo Lake WSC 1,230 36 -
Elysian Fields WSC 1,098 87 -
Waskom Rural WSC 1,098 31 -
Cypress Valley WSC Plant 1 771 210 -
Big Oak MHP 726 318 -
Cypress Valley WSC Plant 2 705 304 -
Cvws Site 1 426 148 -
Shadowood Water Co 400 232 -
Clearwater Distribution 303 292 -
Holiday Springs Mobile Home Park 252 60 -
Tpwd Caddo Lake State Park 204 58 -
Lake Fern Hntg & Fshg Club 200 63 -
Bobcat Crossing RV Community 174 14 -
Old Town WSC 114 244 -
Sabine Mining Co Lignite Mine 100 46 -
Country Pines R V Park 87 107 -
Johnson Mobile Home Park 84 52 -
Quail Lane RV Rental 72 8 -
Southford Mobile Home Park 57 182 -
North Park Mobile Home Park 48 679 -
Pergan Marshall 30 43 -

Compare beyond Texas

Mid-flagged peers for Harrison County

Cross-state counties nearest Harrison County on flagged-system share (100.0%) and cumulative violation count (4,093). 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.