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WaterSafeCheck

ZIP Code 98041 Water Quality Report

Bothell, WA · King County County

Safety Score
A

Water Safety Grade

Excellent — Meets all EPA standards

Health Violations

0

Total Violations

4

Lead Risk

N/A

Contaminants

0

About Tap Water in ZIP Code 98041

Tap water in ZIP code 98041 (Bothell, WA) is among the safest in the country. Served by Silver Lake Water & Sewer District, this area earned a water safety grade of A with a composite score of 85/100 — indicating full regulatory compliance and low contaminant risk across EPA monitoring periods.

Water System

Silver Lake Water & Sewer District

EPA ID: WA5379250

Water Source

Surface Water

Population Served

56,582 residents

County

King County County, Washington

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Lead Levels in ZIP 98041

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Data Not Available

Lead testing data was not found in EPA records for ZIP code 98041. This may occur with very small systems or systems that report under a parent utility. Contact Silver Lake Water & Sewer District directly to request lead testing results or a copy of their Consumer Confidence Report.
Lead Exposure Risk Rating
Unknown
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
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Violation History

Past 5 years — EPA SDWIS data

Silver Lake Water & Sewer District has recorded 4 violations, but none are health-based. Administrative or reporting violations don't directly indicate unsafe water, but they do signal gaps in documentation or monitoring procedures. 1 violation is currently unresolved — meaning the issue has not yet been formally corrected in EPA records. This is a serious concern that residents should follow up on with their water utility.

Total Violations (5 yr)
4
Health-Based Violations
0
Unresolved Violations
1
Boil Water Advisories
0
Compliance Risk
Moderate

Regulatory compliance risk is rated Moderate. Silver Lake Water & Sewer District has had occasional lapses in compliance but generally meets Safe Drinking Water Act requirements.

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Contaminants Detected

Contaminants with health-based violations on record

No health-based contaminant violations are on record for ZIP code 98041. This means EPA monitoring has not found levels of regulated contaminants exceeding the Maximum Contaminant Levels (MCLs) set under the Safe Drinking Water Act — a positive indicator of water quality compliance.

⚖ Enforcement Actions

3 enforcement actions have been issued against Silver Lake Water & Sewer District — a high number that reflects sustained compliance struggles. Enforcement actions escalate from administrative orders to financial penalties when utilities repeatedly fail to meet safe drinking water standards.
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Water Source & Environmental Factors

Surface Water

This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.

Water Source Type
Surface Water
EPA Radon Zone

Lower potential

Zone 3

EPA Radon Zone 3 — lower radon potential, though the EPA still recommends testing all homes.

🛡 What Should You Do? — ZIP 98041 Recommendations

  • ✓ Run cold water for 30 seconds each morning before use — especially if pipes are old
  • ✓ Request your annual Consumer Confidence Report from Silver Lake Water & Sewer District
  • ✓ If your home was built before 1986, consider testing your own tap for lead
  • ✓ Use a pitcher filter (NSF/ANSI 42 certified) for improved taste

Frequently Asked Questions — ZIP 98041 Water Quality

Is tap water safe to drink in ZIP code 98041?+
Yes — tap water in 98041 (Bothell, WA) currently meets all federal EPA standards with a water safety grade of A. No health-based violations are on record in the past 5 years. You can drink your tap water with confidence, though running the tap for 30 seconds in the morning is always a good practice.
What is the lead level in 98041 tap water?+
Lead level data from EPA monitoring is not available for 98041. Contact Silver Lake Water & Sewer District directly for the most recent lead testing results.
Who provides tap water to 98041?+
Tap water in ZIP code 98041 is provided by Silver Lake Water & Sewer District (EPA ID: WA5379250). This system serves approximately 56,582 residents. You can contact them directly for Consumer Confidence Reports, current advisories, and billing information.
What is the water source for 98041?+
ZIP code 98041 is served by surface water. Surface water systems draw from rivers, lakes, or reservoirs and must meet strict EPA treatment requirements including filtration and disinfection.
Does 98041 have any active water quality violations?+
Yes — there are currently 1 unresolved violation on record for this water system. Unresolved violations indicate issues that have not yet been formally corrected in EPA tracking systems. Contact Silver Lake Water & Sewer District for the latest update.
How do I get a copy of my water quality report for 98041?+
Your water utility — Silver Lake Water & Sewer District — is required by law to send you an annual Consumer Confidence Report (CCR) by July 1 each year. You can also request it directly from the utility or find it online by searching "Silver Lake Water & Sewer District Consumer Confidence Report." The EPA's ECHO database also has historical compliance data.
What water filter should I use in 98041?+
The right filter depends on what contaminants are present. For lead, look for a filter certified to NSF/ANSI Standard 53. For chlorine byproducts (like THMs), NSF/ANSI 42 filters work well. For a broad range of contaminants including PFAS, look for NSF/ANSI 58 (reverse osmosis) systems. For ZIP code 98041, with a clean compliance record, a standard carbon block filter meeting NSF/ANSI 42 is a good choice for taste and as a precaution.
Is 98041 tap water safe for babies and infants?+
Infants are especially vulnerable to lead, nitrates, and microbial contaminants in drinking water. Current EPA data for 98041 shows no available lead data — we recommend using a certified NSF/ANSI 53 lead filter as a precaution for infant formula. Always consult your pediatrician for guidance specific to your child's health.

Data Sources & Methodology

Water quality data for ZIP code 98041 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Silver Lake Water & Sewer District. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →