DEMING, 10
SULWHANON 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 EPA Region 10’s official records. Always confirm current status with EPA Region 10 before making decisions based on this information.
System facts
- System ID (PWSID)
- 105300141
- System type
- Community Water System
- Population served
- 150
- Service connections
- 27
- Ownership
- Native American tribal
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2006 – September 30, 2006
ArchivedMonitoring, Regular
—Atrazine
July 1, 2006 – September 30, 2006
ResolvedMonitoring, Regular
—Benzene
July 1, 2006 – September 30, 2006
ResolvedMonitoring, Regular
—Atrazine
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Benzene
April 1, 2006 – June 30, 2006
Resolved
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 2006 – September 30, 2006 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| July 1, 2006 – September 30, 2006 | Monitoring, Regular | Atrazine | — | Resolved |
| July 1, 2006 – September 30, 2006 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Atrazine | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Benzene | — | Resolved |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- December 31, 2006Federal Compliance achieved4 linked violations
Contact
LEWIS, RYAN
360-592-0162
DEMING, WA 98244