Midway Heights C. W. D.
EPA ID: CA3110041 · 1,491 people served · 4 ZIP codes
ZipCheckup's reading of EPA SDWIS for Midway Heights C. W. D. (CA3110041): no EPA violations recorded in the last five years. EPA data: Midway Heights C. W. D. - zero violations, five years, 1,491 served.
Data: EPA SDWIS
Service Area Map
Coverage area for Midway Heights C. W. D. Source: EPA SDWIS service area boundaries.
Service area boundary - Grade B
Service Area Demographics
The Midway Heights C. W. D. serves a community with a median household income of $95,032 and an estimated 45,204 residents across its service area. Approximately 59% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Midway Heights C. W. D.'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in California
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
Midway Heights C. W. D. (EPA ID: CA3110041) is a community water system in California that serves approximately 1,491 people from surface water sources.
This system provides water to 4 ZIP codes across 4 communities.
ZIP-Area Home Safety Context: B (75/100)
This is the average Home Safety Score for 1 of 4 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.000571 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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 CA or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Midway Heights C. W. D. (CA3110041) on EPA.gov.
Frequently Asked Questions
Is Midway Heights C. W. D. water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Midway Heights C. W. D. in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Midway Heights C. W. D. serve?
Midway Heights C. W. D. serves approximately 1,491 people across 4 ZIP codes in California.
Where does Midway Heights C. W. D. get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Midway Heights C. W. D. Water Quality Report, CA. https://zipcheckup.com/water-system/ca3110041/
@misc{zipcheckup-water-system-ca3110041,
author = {{ZipCheckup}},
title = {{Midway Heights C. W. D. Water Quality Report, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca3110041/}
}