NORCO, CA · Riverside County
BLOCK 77 WATER COMPANY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of September 2, 2025. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Riverside County, CA.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- CA3301877
- System type
- Community Water System
- Population served
- 59
- Service connections
- 18
- Ownership
- privately owned
- Water source
- groundwater (wells)
BLOCK 77 WATER COMPANY is one of 3,951 community water systems in California in the 500 or fewer people size category, formerly serving 59 people from groundwater.
EPA's federal records list this system as inactive in 2025; the record below is historical.
As of August 1, 2026, its federal record holds 3 entries in 1983, all of which EPA lists as closed. Nothing has been added since 1983.
None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Miscellaneous Other Rules.
Violation history
Notification, Public
—No contaminant on record
September 1, 1983 – September 30, 1983
ArchivedNotification, Public
—No contaminant on record
August 1, 1983 – August 31, 1983
ArchivedNotification, Public
—No contaminant on record
July 1, 1983 – July 31, 1983
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 1983 – September 30, 1983 | Notification, Public | — | — | Archived |
| August 1, 1983 – August 31, 1983 | Notification, Public | — | — | Archived |
| July 1, 1983 – July 31, 1983 | Notification, Public | — | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- May 26, 2022State Administrative/Compliance Order without penalty issued3 linked violations
- February 25, 2020State Compliance achieved1 linked violation
- December 11, 2019State Administrative/Compliance Order without penalty issued3 linked violations
- November 9, 2004State Formal Notice of Violation issued1 linked violation
- November 9, 2004State Formal Notice of Violation issued2 linked violations
- November 9, 2004State Compliance achieved2 linked violations
Last known contact on file (system is inactive)
ROBERTS, MARY
951-279-7649
NORCO, CA 92860