Updated 2026-10-15

County water report

San Patricio County Water Quality: 2 Cities Ranked by the Records

Name: San Patricio County Water Quality Data (2026)
Creator: PurityMap
License: https://creativecommons.org/licenses/by/4.0/

San Patricio County, Texas: 2 city reports built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Find my system Open on the map Private wells in San Patricio County

Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

LithiumDetected in 2 systems10 µg/L EPA health reference level (screening, not a legal limit) · US EPAHighest38.3 µg/L

CITY OF PORTLAND38.3 µg/LSample date: 2023-04-03 to 2024-01-08
CITY OF INGLESIDE27.4 µg/LSample date: 2024-02-21 to 2024-11-19

Lead (90th percentile)Detected in 2 systems15 µg/L federal action level · US EPAHighest10.9 µg/L

CITY OF INGLESIDE10.9 µg/LMonitoring period: 2026–2026 (still open)
CITY OF PORTLAND1.48 µg/LMonitoring period: 2023–2025

Perfluorobutanesulfonic acid (PFBS)Detected in 1 system of 2 tested2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPAHighest3 ng/L

CITY OF INGLESIDE3 ng/LSample date: 2024-03-25 to 2025-02-11
CITY OF PORTLANDNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-04-03 to 2024-01-08

Perfluorohexanoic acid (PFHxA)Detected in 1 system of 2 tested400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLEHighest4 ng/L

CITY OF PORTLAND4 ng/LSample date: 2023-04-03 to 2024-01-08
CITY OF INGLESIDENot detected · below 3.0 ng/L lab reporting limitSample date: 2024-03-25 to 2025-02-11

Perfluorobutanoic acid (PFBA)Detected in 2 systemsNo federal or state limit; shown for transparencyHighest9.7 ng/L

CITY OF PORTLAND9.7 ng/LSample date: 2023-04-03 to 2024-01-08
CITY OF INGLESIDE8.2 ng/LSample date: 2024-03-25 to 2025-02-11

Perfluoropentanoic acid (PFPeA)Detected in 2 systemsNo federal or state limit; shown for transparencyHighest5.1 ng/L

CITY OF PORTLAND5.1 ng/LSample date: 2023-04-03 to 2024-01-08
CITY OF INGLESIDE3.7 ng/LSample date: 2024-03-25 to 2025-02-11

25 PFAS tested, none detected in any systemShow

Tested in these 2 systems: CITY OF INGLESIDE, CITY OF PORTLAND

11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid (PFPeS)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)

2 cities

Cities ranked by the records

1
PortlandCITY OF PORTLAND
PFAS detected, within limitLead below action level
Open city report →
2
InglesideCITY OF INGLESIDE
PFAS detected, within limitLead below action level
Open city report →

Showing 2 of 2 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in San Patricio CountyPFAS detected in 2 of 2 cities; none had a sample above a 2024 EPA limit

4.0 ng/L federal MCL · PFOS, ng/LPFAS in Texas

Lead

0of 2 cities above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in Texas

Who supplies the county

Largest water systems

PortlandCITY OF PORTLAND · TX2050005
22,933 served
InglesideCITY OF INGLESIDE · TX2050002
10,106 served

Questions

Frequently asked

How does San Patricio County tap water compare across cities?

PurityMap ranks 2 cities in San Patricio County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Portland's main water system: CITY OF PORTLAND · PWSID TX2050005 · Purity Score 96 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many San Patricio County cities had a PFAS sample above a 2024 EPA limit?

None of the 2 San Patricio County city reports had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 2.

Is there lead in San Patricio County tap water?

Utilities report lead as a 90th-percentile result from home taps. 2 of 2 San Patricio County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

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