Llano County Municipal Utility District 1
EPA ID: TX1500002 · 747 people served · 1 ZIP code
Five years of EPA monitoring have produced no violations for Llano County Municipal Utility District 1 — the supplier serving 747 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 3 (2021) to 1 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Llano County Municipal Utility District 1 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Llano County Municipal Utility District 1 serves a community with a median household income of $93,699 and an estimated 7,061 residents across its service area.
Environmental Justice Note: 50% 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?
Llano County Municipal Utility District 1'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 2% of homes in Llano 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
Llano County Municipal Utility District 1 (EPA ID: TX1500002) is a community water system in Texas that serves approximately 747 people from surface water sources.
This system serves ZIP code 78657 in Horseshoe Bay.
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.
- 78657 — Horseshoe Bay
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Llano County Municipal Utility District 1 (TX1500002) on EPA.gov.
Frequently Asked Questions
Is Llano County Municipal Utility District 1 water safe to drink?
Based on EPA records, Llano County Municipal Utility District 1 has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Llano County Municipal Utility District 1 serve?
Llano County Municipal Utility District 1 serves approximately 747 people across 1 ZIP code in Texas.
Where does Llano County Municipal Utility District 1 get its water?
The primary water source is surface water.
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.