Green Valley Special Utility District
EPA ID: TX0940020 · 52,497 people served · 13 ZIP codes
Green Valley Special Utility District recorded 6 EPA violations over the past five years, all of which have since been resolved — the utility is currently in compliance serving 52,497 residents.
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 4 (2023) to 8 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Green Valley Special Utility District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The Green Valley Special Utility District serves a community with a median household income of $95,700 and an estimated 383,544 residents across its service area.
🌊 Where Does Your Water Come From?
Green Valley Special Utility District'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 Wilson 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
Detected Contaminants
How Green Valley Special Utility District compares to EPA limits
What This Means For You
Total Coliform at 2 presence exceeds the EPA maximum of presence.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 1 presence exceeds the EPA maximum of presence.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 35 detections recorded. 5 exceed 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
Green Valley Special Utility District (EPA ID: TX0940020) is a community water system in Texas that serves approximately 52,497 people from surface water sources.
This system provides water to 13 ZIP codes across 11 communities.
Average Home Safety Score: A (87/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Resolved |
| July 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| June 25, 2024 | Total Coliform | Monitoring | Resolved |
| July 28, 2023 | Total Coliform | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Coliform | Microbiological | 2 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
| Revised Total Coliform Rule | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 78124 | 0.0019 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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.
- 78101 — Adkins
- 78108 — Cibolo
- 78109 — Converse
- 78121 — La Vernia
- 78123 — Mc Queeney
- 78124 — Marion
- 78130 — New Braunfels
- 78132 — New Braunfels
- 78152 — Saint Hedwig
- 78154 — Schertz
- 78155 — Seguin
- 78263 — San Antonio
- 78266 — San Antonio
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Green Valley Special Utility District (TX0940020) on EPA.gov.
Frequently Asked Questions
Is Green Valley Special Utility District water safe to drink?
Green Valley Special Utility District has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Green Valley Special Utility District serve?
Green Valley Special Utility District serves approximately 52,497 people across 13 ZIP codes in Texas.
Where does Green Valley Special Utility District get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
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.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Green Valley Special Utility District (EPA ID: TX0940020) — request the latest Consumer Confidence Report or ask about specific contaminants.