Public water system · CA4100540
ActiveOku Incorporated
Community water system in San Mateo County, California, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
35
Service connections
10
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | 52 | 5000 | No | Unaddressed |
| 2021-07-01 | 03 | 4030 | No | Resolved |
| 2021-04-01 | 03 | 4030 | No | Resolved |
| 2021-01-01 | 03 | 4030 | No | Resolved |
| 2019-01-01 | 03 | 2969 | No | Resolved |
| 2019-01-01 | 03 | 1020 | No | Resolved |
| 2019-01-01 | 03 | 1010 | No | Resolved |
| 2019-01-01 | 03 | 1085 | No | Resolved |
| 2019-01-01 | 03 | 2964 | No | Resolved |
| 2019-01-01 | 03 | 2380 | No | Resolved |
| 2019-01-01 | 03 | 2955 | No | Resolved |
| 2019-01-01 | 03 | 1036 | No | Resolved |
Oku Incorporated: frequently asked questions
Is Oku Incorporated's water safe to drink?
Oku Incorporated is an active community water system regulated under the Safe Drinking Water Act, overseen by the CA 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 Oku Incorporated?
Oku Incorporated (PWSID CA4100540) is a private-owned community water system, regulated by the CA state drinking water program.
How many people does Oku Incorporated serve?
Oku Incorporated reports serving 35 people through 10 service connections in San Mateo County, California.
Where does Oku Incorporated get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in San Mateo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Daly City | San Mateo | 104,901 | Community | Purchased surface water |
| California Water Service - San Mateo | San Mateo | 102,348 | Community | Purchased surface water |
| City of Redwood City | San Mateo | 92,819 | Community | Purchased surface water |
| California Water Service-S San Francisco | San Mateo | 64,146 | Community | Purchased surface water |
| California Water Service - Bear Gulch | San Mateo | 61,431 | Community | Surface water |
| City of San Bruno | San Mateo | 42,631 | Community | Purchased surface water |