Drinking Water Systems Reported for ZIP 78570

MERCEDES, Texas — 3 water systems are associated with this ZIP in EPA service-area data

Largest Reported System

LLANO GRANDE LAKE PARK WEST

PWSID: TX1080236

9 EPA violation records in the five-year period ending June 30, 2026

D

Several health-based records

TapScore compliance-history grade

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Other Systems Reported for This ZIP

LLANO GRANDE LAKE PARK EAST

1,300 served1 historical record

A

CITY OF MERCEDES

16,258 served1 historical record

A