City of Hays
EPA ID: TX1050004 · 270 people served · 1 ZIP code
Water monitoring history at City of Hays shows a clean slate — EPA tracking over the past five years turned up no violations, and 270 residents continue to receive fully compliant service.
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 1 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for City of Hays Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The City of Hays serves a community with a median household income of $110,417 and an estimated 46,685 residents across its service area.
💧 Where Does Your Water Come From?
City of Hays'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 Hays 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. 7 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).
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
City of Hays (EPA ID: TX1050004) is a community water system in Texas that serves approximately 270 people from groundwater sources.
This system serves ZIP code 78610 in Buda.
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
- 78610 — Buda
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Hays (TX1050004) on EPA.gov.
Frequently Asked Questions
Is City of Hays water safe to drink?
Based on EPA records, City of Hays has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does City of Hays serve?
City of Hays serves approximately 270 people across 1 ZIP code in Texas.
Where does City of Hays get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.