Desert Water Supply Corporation
EPA ID: TX0430032 · 2,091 people served · 9 ZIP codes
Five years of EPA monitoring have produced no violations for Desert Water Supply Corporation — the supplier serving 2,091 residents has kept every contaminant level within federal limits, a result that places it among the top-performing utilities for systems with a service population of comparable size.
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 1 (2022) to 6 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Desert Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Desert Water Supply Corporation serves a community with a median household income of $84,591 and an estimated 89,697 residents across its service area. Approximately 43% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Desert 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 Grayson 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. 13 detections 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
Desert Water Supply Corporation (EPA ID: TX0430032) is a community water system in Texas that serves approximately 2,091 people from groundwater sources.
This system provides water to 9 ZIP codes across 9 communities.
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
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by TX or modeled from parcel and building-footprint data.
- 75090 — Sherman
- 75409 — Anna
- 75424 — Blue Ridge
- 75442 — Farmersville
- 75452 — Leonard
- 75489 — Tom Bean
- 75490 — Trenton
- 75491 — Whitewright
- 75495 — Van Alstyne
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Desert Water Supply Corporation (TX0430032) on EPA.gov.
Frequently Asked Questions
Is Desert Water Supply Corporation water safe to drink?
Based on EPA records, Desert Water Supply Corporation has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Desert Water Supply Corporation serve?
Desert Water Supply Corporation serves approximately 2,091 people across 9 ZIP codes in Texas.
Where does Desert Water Supply Corporation get its water?
The primary water source is groundwater.