Grand Harbor Water Supply Corporation
EPA ID: TX2490070 · 360 people served · 1 ZIP code
Unlike many utilities its size, Grand Harbor Water Supply Corporation carries a violation-free five-year record — no EPA notices, no MCL exceedances, serving 360 people.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 3 (2024) to 12 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Grand Harbor Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Grand Harbor Water Supply Corporation serves a community with a median household income of $82,971 and an estimated 4,480 residents across its service area. Approximately 54% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Grand Harbor Water Supply Corporation's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 1% of homes in Wise County, Texas rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 1 detection recorded.
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
Grand Harbor Water Supply Corporation (EPA ID: TX2490070) is a community water system in Texas that serves approximately 360 people from surface water sources.
This system serves ZIP code 76431 in Chico.
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
- 76431 — Chico
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Grand Harbor Water Supply Corporation (TX2490070) on EPA.gov.
Frequently Asked Questions
Is Grand Harbor Water Supply Corporation water safe to drink?
Based on EPA records, Grand Harbor Water Supply Corporation has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Grand Harbor Water Supply Corporation serve?
Grand Harbor Water Supply Corporation serves approximately 360 people across 1 ZIP code in Texas.
Where does Grand Harbor Water Supply Corporation get its water?
The primary water source is surface water.