Gardendale Water Supply Corporation
EPA ID: TX1420007 · 174 people served · 1 ZIP code
Compared to the national average for mid-size utilities, Gardendale Water Supply Corporation sits well above the baseline — five years of EPA monitoring show no violations, no MCL exceedances, and no enforcement actions for the full service territory of 174 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Gardendale Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Gardendale Water Supply Corporation serves a community with a median household income of $58,216 and an estimated 5,542 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 100% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Gardendale Water Supply Corporation's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in La Salle County, Texas rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Texas
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Gardendale Water Supply Corporation (EPA ID: TX1420007) is a community water system in Texas that serves approximately 174 people from groundwater sources.
This system serves ZIP code 78014 in Cotulla.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 78014 — Cotulla
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Gardendale Water Supply Corporation (TX1420007) on EPA.gov.
Frequently Asked Questions
Is Gardendale Water Supply Corporation water safe to drink?
Based on EPA records, Gardendale Water Supply Corporation has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Gardendale Water Supply Corporation serve?
Gardendale Water Supply Corporation serves approximately 174 people across 1 ZIP code in Texas.
Where does Gardendale Water Supply Corporation get its water?
The primary water source is groundwater.