SAMMAMISH, WA · King County
NE SAMMAMISH SEWER & WATER DISTRICT Water System
Consumer Confidence Report status
NE SAMMAMISH SEWER & WATER DISTRICT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for NE SAMMAMISH SEWER & WATER DISTRICT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Washington’s official records. Always confirm current status with Washington before making decisions based on this information.
System facts
- System ID (PWSID)
- WA5375265
- System type
- Community Water System
- Population served
- 9,702
- Service connections
- 3,378
- Ownership
- local government
- Water source
- groundwater (wells)
NE SAMMAMISH SEWER & WATER DISTRICT is one of 112 community water systems in Washington in the 3,301 to 10,000 people size category, serving 9,702 people from groundwater.
As of August 1, 2026, its federal record holds 7 entries between 1979 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.
All 7 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Nitrate
January 1, 2022 – December 31, 2022
ResolvedMonitoring, Regular
—Arsenic
January 1, 2009 – March 31, 2009
ResolvedMonitoring, Regular
—Arsenic
January 1, 2008 – March 31, 2008
ResolvedMonitoring, Regular
—Nitrate
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Nitrate
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Nitrate
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2022 – December 31, 2022 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2009 – March 31, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2008 – March 31, 2008 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 21, 2023State Compliance achieved1 linked violation
- April 8, 2008State Compliance achieved27 linked violations
- January 9, 2004State Compliance achieved4 linked violations
Common questions
Is NE SAMMAMISH SEWER & WATER DISTRICT required to publish a Consumer Confidence Report?
- Yes. NE SAMMAMISH SEWER & WATER DISTRICT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is NE SAMMAMISH SEWER & WATER DISTRICT’s next Consumer Confidence Report due?
- NE SAMMAMISH SEWER & WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NE SAMMAMISH SEWER & WATER DISTRICT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for NE SAMMAMISH SEWER & WATER DISTRICT.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
NE SAMMAMISH SEWER & WATER DISTRICT
Phone not on record
SAMMAMISH, WA 98074