PlainWater

San Augustine County, Texas

SDWIS compliance plate

Sheet TX405 · San Augustine County 16 sys · 9,237 viol · #2618/3254

VIOL-SEVERE · HEALTH-MID · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 24.7% health
  • RANK-BOTTOM #2618/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 88%
  • SYS-SMALL 16 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, San Augustine County ranks #2,618 of 3,254 counties by people served, and #183 of 254 counties in Texas. See methodology · corpus placement.

San Augustine 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 24.7% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for San Augustine County . Population served ranks #2,618 of 3,254 · #183 of 254 in Texas.

Flagged-rate neighbourhood around San Augustine County

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

0% 20% 40% 60% 80% 100% Howard · lowest Collin · near Guadalupe · near 66.7% 100% 100% 100% 100% 100% 100%

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

Water Systems

Compare beyond Texas

Mid-flagged peers for San Augustine County

Cross-state counties nearest San Augustine County on flagged-system share (100.0%) and cumulative violation count (9,237). 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.