Port Orchard, WA · Mason County
MASON COUNTY LOST LAKE 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)
- WA5348300
- System type
- Community Water System
- Population served
- 96
- Service connections
- 96
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Endrin
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Simazine
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Atrazine
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—LASSO
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2005 – December 31, 2007
ArchivedMonitoring, Regular
—Chlordane
January 1, 2005 – December 31, 2007
Resolved
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, 2005 – December 31, 2007 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Chlordane | — | Resolved |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Contact
MASON COUNTY LOST LAKE
Phone not on record
Port Orchard, WA 98366