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Water utility · serves Seattle · Washington

Seattle Public Utilities

No open EPA violations as of 2026-09-16.

EPA record checked 2026-10-06

Contact and official links

Contact Seattle Public Utilities

From EPA's record for WA5377050. PurityMap is independent of Seattle Public Utilities.

Mailing address
800 South Stacy St
Seattle, WA 98134
Directions ↗
Phone and websiteNot in EPA's record

Your water bill lists the utility's phone number and website.

Annual water quality report2025 Consumer Confidence Report

Every community water system publishes one each year.

Read the report ↗
Where it delivers water

As listed in EPA's records. Your water bill names your supplier.

Are you this utility? Correct this listing →

Test results

No result on record is above a federal legal limit

34 results are on record. These 5 come first, closest to a legal limit first.

All 34 results and evidence →
  • Haloacetic acids (HAA5)Below the listed reference
    60 ppb federal MCL
    28ppb
  • Total trihalomethanes (TTHM)Below the listed reference
    80 ppb federal MCL
    34ppb
  • Lead (90th percentile)Below the listed reference
    15 µg/L action level
    1.6µg/L
  • Water hardnessWithin a secondary/aesthetic reference
    Slightly hard on the USGS scale · aesthetic, no federal limit
    1.8gpg
  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)Not detected above the reporting limit
    No federal limit
    Not detected
EPA violations and monitoring

0health-based violations in the last 10 years · none open as of 2026-09-16

From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit. Meeting a federal limit is a compliance fact, not a health clearance.

Sources behind this page
  • UCMR5 Analytical Results: SEATTLE PUBLIC UTILITIES (WA5377050)US EPA · published 2026-01-15
    View ↗
  • Lead & Copper Rule 90th-percentile: SEATTLE PUBLIC UTILITIES (WA5377050)US EPA SDWIS · published 2026-07-09
    View ↗
  • Seattle Public Utilities 2025 Consumer Confidence Report (CCR)Seattle Public Utilities · published 2025-01-01
    View ↗
Commercial · test your own tap

The system record stops at your property line

Screening tells you if something is worth a closer look; a lab result is the number you can act on.

As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure

  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

Questions

About Seattle Public Utilities

Follow Seattle Public Utilities

One email when a new sampling round is published or a result moves across its reference.

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How do I contact Seattle Public Utilities?

Its mailing address is 800 South Stacy St, Seattle, WA 98134. These details come from the system's EPA record.

How do I pay my Seattle Public Utilities bill?

PurityMap has no verified website for Seattle Public Utilities. Its mailing address on EPA record is 800 South Stacy St, Seattle, WA 98134. Your water bill lists the ways to pay. PurityMap does not take payments.

Which cities does Seattle Public Utilities serve?

EPA's records list Seattle Public Utilities as serving Seattle, Washington. Your water bill names your supplier.

Has Seattle Public Utilities tested for PFAS?

PurityMap's record for Seattle Public Utilities holds results for 29 PFAS substances. None was detected, and none is above a federal legal limit. Each result links to its source in the city report.

Does Seattle Public Utilities have any EPA violations?

No open EPA violations as of 2026-09-16: that is what EPA's record shows for Seattle Public Utilities. The record comes from EPA's SDWIS compliance database.

Where does Seattle Public Utilities get its water?

Seattle Public Utilities is on EPA record as drawing from surface water.