Lake Margaret Water System
EPA ID: WA5344200 ยท 406 people served ยท 1 ZIP code
ZipCheckup's reading of EPA records for Lake Margaret Water System (WA5344200): 43 violations on record since 2021. Lake Margaret Water System's EPA record lists 43 historical violations, and none is listed as open in that record; the utility supplies water to 406 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Lake Margaret Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Lake Margaret Water System have a median household income of $156,003 and about 11,712 residents live in those ZIP codes (Census; not the number of people this system supplies).
๐ Where Does Your Water Come From?
Lake Margaret Water System'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.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Washington
System Overview
Lake Margaret Water System (EPA ID: WA5344200) is a community water system in Washington that serves approximately 406 people from surface water sources.
This system serves ZIP code 98019 in Duvall.
Violation History
Status breakdown for accepted records with record years 2021-2026: 43 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Consumer Confidence Rule | Non-health-based | Resolved |
| January 1, 2024 | 1,2,4-Trichlorobenzene | Non-health-based | Resolved |
| January 1, 2024 | cis-1,2-Dichloroethylene | Non-health-based | Resolved |
| January 1, 2024 | DICHLOROMETHANE | Non-health-based | Resolved |
| January 1, 2024 | o-Dichlorobenzene | Non-health-based | Resolved |
| January 1, 2024 | p-Dichlorobenzene | Non-health-based | Resolved |
| January 1, 2024 | Vinyl chloride | Non-health-based | Resolved |
| January 1, 2024 | 1,1-Dichloroethylene | Non-health-based | Resolved |
| January 1, 2024 | trans-1,2-Dichloroethylene | Non-health-based | Resolved |
| January 1, 2024 | 1,2-Dichloroethane | Non-health-based | Resolved |
| January 1, 2024 | 1,1,1-Trichloroethane | Non-health-based | Resolved |
| January 1, 2024 | Carbon tetrachloride | Non-health-based | Resolved |
| January 1, 2024 | 1,2-Dichloropropane | Non-health-based | Resolved |
| January 1, 2024 | Trichloroethylene | Non-health-based | Resolved |
| January 1, 2024 | 1,1,2-Trichloroethane | Non-health-based | Resolved |
| January 1, 2024 | Tetrachloroethylene | Non-health-based | Resolved |
| January 1, 2024 | CHLOROBENZENE | Non-health-based | Resolved |
| January 1, 2024 | Benzene | Non-health-based | Resolved |
| January 1, 2024 | Toluene | Non-health-based | Resolved |
| January 1, 2024 | Ethylbenzene | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Rule | Other (notice or report rule) | 3 | No |
| 1,2,4-Trichlorobenzene | Monitoring & Reporting | 2 | No |
| cis-1,2-Dichloroethylene | Monitoring & Reporting | 2 | No |
| DICHLOROMETHANE | Monitoring & Reporting | 2 | No |
| o-Dichlorobenzene | Monitoring & Reporting | 2 | No |
| p-Dichlorobenzene | Monitoring & Reporting | 2 | No |
| Vinyl chloride | Monitoring & Reporting | 2 | No |
| 1,1-Dichloroethylene | Monitoring & Reporting | 2 | No |
| trans-1,2-Dichloroethylene | Monitoring & Reporting | 2 | No |
| 1,2-Dichloroethane | Monitoring & Reporting | 2 | No |
| 1,1,1-Trichloroethane | Monitoring & Reporting | 2 | No |
| Carbon tetrachloride | Monitoring & Reporting | 2 | No |
| 1,2-Dichloropropane | Monitoring & Reporting | 2 | No |
| Trichloroethylene | Monitoring & Reporting | 2 | No |
| 1,1,2-Trichloroethane | Monitoring & Reporting | 2 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0018 mg/L | No | 2023-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20โ$50 (DIY kit) ยท Professional inspection: $150โ$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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 WA or modeled from parcel and building-footprint data.
- 98019 - Duvall
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lake Margaret Water System (WA5344200) on EPA.gov.
Frequently Asked Questions
Is Lake Margaret Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Lake Margaret Water System; its 43 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Lake Margaret Water System serve?
Lake Margaret Water System serves approximately 406 people across 1 ZIP code in Washington.
Where does Lake Margaret Water System get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lake Margaret Water System (WA): 43 EPA Violations. https://zipcheckup.com/water-system/wa5344200/
@misc{zipcheckup-water-system-wa5344200,
author = {{ZipCheckup}},
title = {{Lake Margaret Water System (WA): 43 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5344200/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
Lake Margaret Water System (EPA ID: WA5344200) - request the latest Consumer Confidence Report or ask about specific contaminants.