78597
South Padre Island, TX
LAGUNA MADRE WATER DISTRICT

Is South Padre Island tap water safe to drink?

Higher concern
Last tested: March 2024
Action Advised
Source: Official EPA UCMR5 federal monitoring data | Last tested March 2024

Can you drink the tap water in South Padre Island?

South Padre Island tap water has 3 contaminants above EPA guidelines, including lithium at 4,1× the limit (tested March 2024). See the full compound-by-compound breakdown and filter recommendations.

Recommended for South Padre Island tap water
Water filter for South Padre Island tap water: Epic Pure XP Water Filter Pitcher
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
Contaminants above EPA limits detected in South Padre Island. Fastest way to reduce exposure.
See certified filter on Amazon

The health risk for South Padre Island

lithium has been detected above EPA limits in this water system's recent tests. A certified filter designed for this contaminant type is strongly recommended.
  • lithium, PFPeA above limit.
lithium concentration (µg/L) March 2024
0 µg/L 10 µg/L 50 µg/L
41.300 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
313% above limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 41.300 µg/L
Certified Filters for South Padre Island Tap Water

lithium was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.

Water filter recommendation for South Padre Island tap water: Epic Pure XP Water Filter Pitcher
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
Best for renters or quick setup. No installation needed.
See certified filter on Amazon
Water filter recommendation for South Padre Island tap water: Waterdrop G3P600 Reverse Osmosis System
Under-sink RO system
Waterdrop G3P600 Reverse Osmosis System
8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.
Best for homeowners. Heavy-duty filtration for long-term protection.
See certified filter on Amazon
Most elevated compounds
Compound Measurement EPA Limit Comparison
lithium
Tested: November 2023 · Water Treatment Plant 1		 41.300 µg/L 10 µg/L 313% above limit
lithium
Tested: November 2023 · Water Treatment Plant 2		 41.200 µg/L 10 µg/L 312% above limit
PFPeA
Tested: November 2023 · Water Treatment Plant 1		 0.004 µg/L 0.003 µg/L 40% above limit
View all tested compounds

Water Treatment Plant 1 · Tested: November 2023

Compound Measurement EPA Limit Comparison
lithium 41.300 µg/L 10 µg/L 313% above limit
PFPeA 0.004 µg/L 0.003 µg/L 40% above limit
PFBA 0.014 µg/L 6 µg/L 0.2% of limit
PFHxA 0.004 µg/L 3 µg/L 0.1% of limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxS <0.003 µg/L 0.01 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

Water Treatment Plant 2 · Tested: Multiple dates

Compound Measurement EPA Limit Comparison
lithium 41.200 µg/L 10 µg/L 312% above limit
PFBA 0.007 µg/L 6 µg/L 0.1% of limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFHxS <0.003 µg/L 0.01 µg/L Below limit
PFHxA <0.003 µg/L 3 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit
Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (lithium: 10 µg/L)
Last tested March 2024
Last page update 2026-03-31

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    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Protect your water in South Padre Island → see certified filters