SANTA ROSA, CA · Sonoma County
MARK WEST ACRES MWC 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 California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA4900605
- System type
- Community Water System
- Population served
- 61
- Service connections
- 22
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2001 – October 31, 2001
ResolvedNotification, Public
—No contaminant on record
September 1, 1984 – September 30, 1984
ArchivedNotification, Public
—No contaminant on record
August 1, 1984 – August 31, 1984
ArchivedNotification, Public
—No contaminant on record
July 1, 1984 – July 31, 1984
ArchivedNotification, Public
—No contaminant on record
February 1, 1983 – February 28, 1983
ArchivedNotification, Public
—No contaminant on record
January 1, 1983 – January 31, 1983
ArchivedNotification, Public
—No contaminant on record
November 1, 1982 – November 30, 1982
ArchivedNotification, Public
—No contaminant on record
October 1, 1982 – October 31, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
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 |
|---|---|---|---|---|
| October 1, 2001 – October 31, 2001 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| September 1, 1984 – September 30, 1984 | Notification, Public | — | — | Archived |
| August 1, 1984 – August 31, 1984 | Notification, Public | — | — | Archived |
| July 1, 1984 – July 31, 1984 | Notification, Public | — | — | Archived |
| February 1, 1983 – February 28, 1983 | Notification, Public | — | — | Archived |
| January 1, 1983 – January 31, 1983 | Notification, Public | — | — | Archived |
| November 1, 1982 – November 30, 1982 | Notification, Public | — | — | Archived |
| October 1, 1982 – October 31, 1982 | Notification, Public | — | — | Archived |
| October 1, 1981 – September 30, 1982 | 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
No enforcement actions on record for this system.
Contact
FRAZER, DAVID
707-755-3609
SANTA ROSA, CA 95404