Tap Truth EPA drinking water records, in plain English

Public water system record

Cedar River Water & Sewer District

Serves Hobart, Shadow Lake, Maple Heights-Lake Desire and 3 more places, King County, WA · 28,671 people served

Federal records show no health-based violations and no monitoring or reporting issues for Cedar River Water & Sewer District in the last ten years.

  • WA5341800
  • MAPLE VALLEY
  • WA
  • 28,671 served

System profile

Source water Purchased surface water
ZIP 98038
EPA system ID WA5341800

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Cedar River Water & Sewer District buys its water from Seattle Public Utilities and Covington Water District.
  • Lead pipe inventory: 0 lead and 0 unknown out of 8,208 service lines.

Check whether Cedar River Water & Sewer District serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016, and no monitoring or reporting violations either.

Where the water comes from

Cedar River Water & Sewer District buys its water from Seattle Public Utilities and Covington Water District. EPA also lists 1 well, all for emergency, seasonal or other part-time use. 1 other community water system buys water from Cedar River Water & Sewer District.

Buys water from

Community systems that buy water from it

Annual water quality report

Cedar River Water & Sewer District must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Washington.

Certified drinking water labs by state EPA guidance for private wells