PlainWater

San Patricio County, Texas

SDWIS compliance plate

Sheet TX409 · San Patricio County 20 sys · 1,536 viol · #750/3254

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

  • VIOL-SEVERE 95.0% flagged
  • HEALTH-LOW 17.6% health
  • RANK-UPPER #750/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-HIGH 85.7% detect
  • SRC-SW SW lead 65%
  • SYS-SMALL 20 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Hale County (+ 0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, San Patricio County ranks #750 of 3,254 counties by people served, and #55 of 254 counties in Texas. See methodology · corpus placement.

San Patricio County standing, mid-flagged corpus third

Flagged-system rate 95.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 17.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 85.7% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #750 of 3,254 · #55 of 254 in Texas.

Flagged-rate neighbourhood around San Patricio County

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

0% 20% 40% 60% 80% 100% Howard · lowest San Jacinto · near Hale · near Bee · highest 66.7% 94.6% 94.7% 95% 95.2% 95.4% 100%

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

Water Systems

System Name Population Violations PFAS
City of Portland 22,933 17 Detected
City of Ingleside 10,106 96 Detected
City of Aransas Pass 8,088 93 Detected
City of Sinton 5,505 57 Clean
City of Mathis 5,001 213 Detected
City of Taft 4,941 61 Detected
Rincon WSC 4,734 36 Detected
City of Odem 2,250 64 -
City of Gregory 1,760 104 -
City of Ingleside on the Bay 610 29 -
Saint Paul WSC 608 264 -
San Patricio County MUD 1 540 226 -
Seaboard WSC 420 128 -
Tpwd Lake Corpus Christi Sp 418 7 -
Corpus Christi Liquefaction 400 12 -
Totem Pole RV Park 322 68 -
Camp Karankawa 300 36 -
New Season RV Resort 93 0 -
San Patricio MWD 48 20 -
Emerald Hills Water 30 5 -

Compare beyond Texas

Mid-flagged peers for San Patricio County

Cross-state counties nearest San Patricio County on flagged-system share (95.0%) and cumulative violation count (1,536). 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.