City of Mountlake Terrace
Drinking water quality, contact, and Consumer Confidence Report
Serving 1 city in WA · PWSID WA5357250
City of Mountlake Terrace serves 26,402 people. 1 contaminant currently exceed health-based guidelines — full breakdown below.
- People served
- 26,402
- Last EPA sample
- 2025-03-10
- PFAS
- Not detected above guidelines
- Active violations
- None
Data sources: EPA SDWIS, City of Mountlake Terrace's published Consumer Confidence Report, Washington Department of Environmental Protection.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official City of Mountlake Terrace Resources
City of Mountlake Terrace Service Area
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This map shows the approximate service area for City of Mountlake Terrace. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
City of Mountlake Terrace Water Quality Grade
Water meets all health guidelines with no violations.
Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).
Is City of Mountlake Terrace Water Safe to Drink?
City of Mountlake Terrace has reported 1 contaminant above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 26,402 people across 1 city in WA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
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City of Mountlake Terrace Service Area
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City of Mountlake Terrace Contact & Information
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for City of Mountlake Terrace
| Name | Title | Phone | |
|---|---|---|---|
| J████ S████ | Water Treatment Supervisor | (555) ███-████ | j████@city████.gov |
| M████ J██████ | Utility Director | (555) ███-████ | m████@water████.org |
Water Sources & Treatment
Water Sources
Treatment Methods
Disinfectant Used
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City of Mountlake Terrace Consumer Confidence Report
A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act §1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.
A current CCR for City of Mountlake Terrace has not been published or validated on TapWaterData yet.
Residents: contact the utility directly using the phone number above, or check the EPA’s national CCR portal. Reports are typically distributed by mail or posted on the utility’s official website.
City of Mountlake Terrace Annual Water Quality Reports
Historical reports are being compiled. Check back soon for archived water quality data.
What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.
Concerned about what's in your water?
You're viewing 1 contaminant above health-based guidelines here. Your own tap water can differ — upload your test (PDF or a photo) and we'll email a full plain-English reading of every number, free.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testRecommended Water Filters for City of Mountlake Terrace
Based on water quality data from cities served by City of Mountlake Terrace, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about City of Mountlake Terrace
Is City of Mountlake Terrace water safe to drink?
Does City of Mountlake Terrace have PFAS in its water?
How do I pay my City of Mountlake Terrace water bill?
How many people does City of Mountlake Terrace serve?
What cities does City of Mountlake Terrace serve?
Does City of Mountlake Terrace have any EPA violations?
What is City of Mountlake Terrace's phone number?
Where can I find City of Mountlake Terrace's Consumer Confidence Report?
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How we built this page
Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data — typically within days of an EPA SDWIS refresh.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: City of Mountlake Terrace's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS plus the Washington Department of Environmental Protection / Drinking Water program.
Spotted a data issue? Use the Spotted something off? link at the bottom of the page — corrections feed back into the next data refresh. Learn more about TapWaterData.
Are you City of Mountlake Terrace? Publish your 2027 CCR
TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here — it inherits this page's search authority and reaches every customer who Googles City of Mountlake Terrace.
- EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
- Publish once a year. Agent-assisted workflow; no login setup for small systems.
- Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
Free for operators. No card required. Typical setup: 5 minutes.
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