78521
Brownsville, TX
BROWNSVILLE PUBLIC UTILITIES BOARD

Is Brownsville tap water safe to drink?

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

Can you drink the tap water in Brownsville?

Brownsville tap water has 6 contaminants above EPA guidelines, including lithium at 5,1× the limit (tested June 2025). See the full compound-by-compound breakdown and filter recommendations.

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

The health risk for Brownsville

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, PFOA, PFOS, PFPeA above limit.
lithium concentration (µg/L) June 2025
0 µg/L 10 µg/L 100 µg/L
51.100 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
411% above limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 51.100 µg/L
Certified Filters for Brownsville Tap Water

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

Water filter recommendation for Brownsville 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 Brownsville 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: April 2025 · WTP #1 (13th St.)		 51.100 µg/L 10 µg/L 411% above limit
lithium
Tested: April 2025 · WTP #2 (Robin Hood Rd.)		 40.200 µg/L 10 µg/L 302% above limit
PFOS
Tested: April 2025 · WTP #1 (13th St.)		 0.008 µg/L 0.004 µg/L 100% above limit
PFPeA
Tested: June 2025 · WTP #2 (Robin Hood Rd.)		 0.005 µg/L 0.003 µg/L 77% above limit
PFPeA
Tested: April 2025 · WTP #1 (13th St.)		 0.004 µg/L 0.003 µg/L 43% above limit
View all tested compounds

WTP #1 (13th St.) · Tested: April 2025

Compound Measurement EPA Limit Comparison
lithium 51.100 µg/L 10 µg/L 411% above limit
PFOS 0.008 µg/L 0.004 µg/L 100% above limit
PFPeA 0.004 µg/L 0.003 µg/L 43% above limit
PFOA 0.005 µg/L 0.004 µg/L 18% above limit
PFHxS 0.003 µg/L 0.01 µg/L 34% of limit
PFHxA 0.005 µg/L 3 µg/L 0.2% of limit
PFBA 0.005 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
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
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

WTP #2 (Robin Hood Rd.) · Tested: Multiple dates

Compound Measurement EPA Limit Comparison
lithium 40.200 µg/L 10 µg/L 302% above limit
PFPeA 0.005 µg/L 0.003 µg/L 77% above limit
PFHxS 0.003 µg/L 0.01 µg/L 32% of limit
PFHxA 0.004 µg/L 3 µg/L 0.1% of limit
PFBA 0.006 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
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
Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (lithium: 10 µg/L)
Last tested June 2025
Last page update 2026-03-31

Check another ZIP code

    Nearby ZIP reports

    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 Brownsville → see certified filters