78560
La Joya, TX
AGUA SUD

Is La Joya tap water safe to drink?

Higher concern
Last tested: May 2025
Action Advised
Source: Official EPA UCMR5 federal monitoring data | Last tested May 2025

Can you drink the tap water in La Joya?

La Joya tap water has 3 contaminants above EPA guidelines, including lithium at 4,6× the limit (tested May 2025). See the full compound-by-compound breakdown and filter recommendations.

Recommended for La Joya tap water
Water filter for La Joya 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 La Joya. Fastest way to reduce exposure.
See certified filter on Amazon

The health risk for La Joya

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) May 2025
0 µg/L 10 µg/L 50 µg/L
45.900 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
359% above limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 45.900 µg/L
Certified Filters for La Joya Tap Water

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

Water filter recommendation for La Joya 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 La Joya 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: September 2024 · Havana Plant		 45.900 µg/L 10 µg/L 359% above limit
lithium
Tested: September 2024 · Multiple Plants		 43.800 µg/L 10 µg/L 338% above limit
PFPeA
Tested: May 2025 · Multiple Plants		 0.005 µg/L 0.003 µg/L 60% above limit
View all tested compounds

Multiple Plants · Tested: Multiple dates

Compound Measurement EPA Limit Comparison
lithium 43.800 µg/L 10 µg/L 338% above limit
PFPeA 0.005 µg/L 0.003 µg/L 60% above limit
PFHxA 0.005 µg/L 3 µg/L 0.2% of 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
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

Havana Plant · Tested: September 2024

Compound Measurement EPA Limit Comparison
lithium 45.900 µg/L 10 µg/L 359% above limit
PFBA 0.012 µg/L 6 µg/L 0.2% 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 May 2025
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 La Joya → see certified filters