Water Quality in Brownsville, TX (78521)
EPA violation data for public water systems serving ZIP code 78521.
Active Health Violations
4 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 81% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
87,380
Population
32
Water Systems
51
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (32)
Brownsville Public Utilities Board
Harlingen Water Works System
Laguna Madre Water District
East Rio Hondo Wsc
City Of San Benito
El Jardin Wsc
Starbase Spacex Water Hauler
Starbase Water System
Brownsville Navigation District
All resolvedSt Joseph Water & Ice Corp
Starbase Pad Restroom Pws
All resolvedStarbase Restaurant Pws
All resolvedStarbase Ad Astra Phase 1a
Pmp Mobile Home Park, Inc.
Boca Chica Water System
Starbase Huddleston Tiny Homes
Tip-O-Tex T.P.
Water Maid - Purified Water St
Starbase Ad Astra School
Water Maid - Machine No 13
Water Maid - Machine No 2
Water Maid - Machine No 1
Water Maid - Nolana 2200
Paseo De La Resaca Mud No 3
Water Maid - Machine No 10
Water Maid - East University 1
Water Maid - Machine No 11
Starbase East Production Restroom Pws
All resolvedStarbase Airstream Park 3
4 health-basedStarbase Stargate Pws
All resolvedStarbase West Production Restroom Pws
All resolvedStarbase Medical Clinic
All resolvedContaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Brownsville (78521) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 51.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.