Public water system · WA5305867
ActiveHamma Ridge
Community water system in Mason County, Washington, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
63
Service connections
28
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-04-01 | 3A | 8000 | No | Resolved |
| 2007-10-01 | 03 | 2032 | No | Resolved |
| 2007-07-01 | 03 | 2032 | No | Resolved |
| 2007-04-01 | 03 | 2032 | No | Resolved |
| 2007-01-01 | 03 | 2032 | No | Resolved |
Hamma Ridge: frequently asked questions
Is Hamma Ridge's water safe to drink?
Hamma Ridge is an active community water system regulated under the Safe Drinking Water Act, overseen by the WA state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Hamma Ridge?
Hamma Ridge (PWSID WA5305867) is a local government-owned community water system, regulated by the WA state drinking water program.
How many people does Hamma Ridge serve?
Hamma Ridge reports serving 63 people through 28 service connections in Mason County, Washington.
Where does Hamma Ridge get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Mason County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Shelton City of | Mason | 15,089 | Community | Groundwater |
| Maysville Utility Commission | Mason | 11,263 | Community | Surface water |
| Ludington | Mason | 8,184 | Community | Surface water |
| Western Lewis Rectorville Water District | Mason | 6,534 | Community | Purchased surface water |
| Point Pleasant Water Works | Mason | 5,146 | Community | Groundwater |
| Buffalo Trail Water Assoc | Mason | 4,514 | Community | Purchased surface water |