Water Quality in Lynnwood, WA: 3 Violations Recorded for Mapped Water Systems
5 water systems · 3 directly mapped ZIP records
Available EPA records report 3 violations across 3 directly mapped ZIP records with known counts for Lynnwood. This is compliance evidence, not a property-level tap-water verdict.
Data: EPA Safe Drinking Water Information System (SDWIS)
Water Quality by ZIP Code in Lynnwood
This table shows typed EPA water evidence only. Missing violation counts are displayed as N/A, not zero.
| ZIP Code | Violations | Health | |
|---|---|---|---|
| 98036 | 3 | 0 | View report → |
| 98037 | 2 | 0 | View report → |
| 98087 | 0 | 0 | View report → |
Water Quality Overview
Lynnwood, Washington has directly mapped EPA water-system data for 3 ZIP codes. This page reports typed compliance facts and does not relabel the multi-source Home Safety Score as a drinking-water grade.
The available EPA records report 3 violations (all classified as monitoring/reporting type in the available record) across 3 directly mapped ZIP records with reported counts.
Lead Levels
Lead testing results for Lynnwood are unavailable in this dataset snapshot. Community water systems are required to monitor lead under the EPA's Lead and Copper Rule.
With 46% of homes built before 1986, Lynnwood has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Water Systems Serving Lynnwood
Lynnwood is served by 5 community water systems regulated under the Safe Drinking Water Act. About 113,197 people live in the area (4 ZIP codes, Census); this is not the systems' reported service population.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
EPA records list 1 enforcement action against water systems serving Lynnwood. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Lynnwood
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels and violation history
Request your CCR - your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test - certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration - NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories - monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Lynnwood Water Systems
The following contaminants have been detected or caused violations across Lynnwood's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 2 | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 2 | 2 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 1 | 1 | No |
The standard column shows the EPA Maximum Contaminant Level (MCL) except for lead and copper, whose value is an action level that triggers corrective steps and is not an MCL. Health-based violations are MCL, MRDL and treatment-technique violations.
EPA Enforcement History
The EPA and state regulators have taken 1 enforcement action against water systems serving Lynnwood. Recent actions:
| Date | Action Type |
|---|---|
| 2025-02-20 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-02-20.
Lynnwood vs. Nearby Washington Cities
How Lynnwood's water quality compares to similar cities in Washington:
| City | Direct EPA ZIPs | Violations | Systems | Population |
|---|---|---|---|---|
| Lynnwood | 3 | 3 | 5 | 113,197 |
| Kennewick | 3 | 45 | 7 | 103,495 |
| Auburn | 3 | 17 | 10 | 123,835 |
| Redmond | 2 | 2 | 7 | 101,912 |
Recommended Water Filters for Lynnwood
Based on contaminants detected in Lynnwood's water supply, these filter types are recommended:
Granular Activated Carbon (GAC, under-sink or whole-house)
- Removes: Haloacetic Acid HAA5
- Effectiveness: 60-80%
- Cost range: $100–$600
- Certification: NSF/ANSI 53
- Recommended products:
Granular Activated Carbon (GAC, whole-house POE)
- Removes: Trihalomethane (TTHM)
- Effectiveness: 80-99%
- Cost range: $400–$2000
- Certification: NSF/ANSI 53
- Recommended products:
Water Quality by ZIP Code in Lynnwood
EPA coverage and recorded violations can differ across Lynnwood's ZIP codes. Missing counts are shown as unavailable, not zero:
Common Questions About Lynnwood Water
These are the most common questions residents search for about water quality in Lynnwood, Washington:
Is Lynnwood water hard or soft? Water hardness varies by source. Lynnwood's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Lynnwood tap water? City-level EPA records cannot determine safety at a specific tap. No health-based violations are recorded across 3 directly mapped ZIP records with known counts, but this is not a property-level safety guarantee.
What is the best water filter for Lynnwood? Based on detected contaminants, a granular activated carbon (gac, under-sink or whole-house) filter is most recommended. See our Water Filter Matcher for personalized recommendations.
Lynnwood vs. Washington Average
Understanding how Lynnwood compares to the broader Washington average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below - water quality can vary significantly even within Lynnwood.
ZIP Codes in Lynnwood
Lynnwood spans 4 ZIP codes. EPA water-system coverage is available for 3 directly mapped ZIP codes. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Source reporting periods vary. See each cited source for its publication schedule.