City of Lewisville
EPA ID: TX0610004 · 140,880 people served · 9 ZIP codes
Per EPA records, City of Lewisville: 6 unresolved violations, 140,880 people in service area.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for City of Lewisville Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The City of Lewisville serves a community with a median household income of $113,249 and an estimated 374,228 residents across its service area.
🌊 Where Does Your Water Come From?
City of Lewisville'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 Denton 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 City of Lewisville compares to EPA limits
What This Means For You
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2959 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.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 39 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 Lewisville (EPA ID: TX0610004) is a community water system in Texas that serves approximately 140,880 people from surface water sources.
This system provides water to 9 ZIP codes across 5 communities.
Average Home Safety Score: A (88/100)
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 |
|---|---|---|---|
| September 7, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| June 30, 2025 | Lead and Copper Rule | Monitoring | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| July 2, 2024 | Surface Water Treatment Rule | Monitoring | Unresolved |
| July 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2024 | Contaminant 2959 | Monitoring | Unresolved |
| July 1, 2023 | Surface Water Treatment Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
| Lead and Copper Rule | Treatment Failure | 2 | No |
| Contaminant 2959 | Other Violation | 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 |
|---|---|---|---|
| 75029 | 0.0014 mg/L | No | N/A |
| 75057 | 0.0014 mg/L | No | N/A |
| 75067 | 0.0014 mg/L | No | N/A |
| 75077 | 0.0014 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: 8 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 75007 — Carrollton
- 75010 — Carrollton
- 75019 — Coppell
- 75028 — Flower Mound
- 75029 — Lewisville
- 75056 — The Colony
- 75057 — Lewisville
- 75067 — Lewisville
- 75077 — Lewisville
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Lewisville (TX0610004) on EPA.gov.
Frequently Asked Questions
Is City of Lewisville water safe to drink?
City of Lewisville has recorded 1 health-based violation in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does City of Lewisville serve?
City of Lewisville serves approximately 140,880 people across 9 ZIP codes in Texas.
Where does City of Lewisville 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
City of Lewisville (EPA ID: TX0610004) — request the latest Consumer Confidence Report or ask about specific contaminants.