Sammamish, WA · King County
NE SAMMAMISH SEWER & WATER DISTRICT Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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
- 8,516
- Service connections
- 3,360
- Ownership
- local government
- Water source
- groundwater (wells)
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
- January 9, 2004State Compliance achieved4 linked violations
Contact
NE SAMMAMISH SEWER & WATER DISTRICT
Phone not on record
Sammamish, WA 98074