Public water system record
Sandmound Mutual
Serves Bethel Island, Contra Costa County, CA · 100 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Sandmound Mutual in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Sandmound Mutual draws water from 2 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, September 2022.
- Record on file since 1980, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 105 service lines.
Check whether Sandmound Mutual serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 |
Active
Enforcement action in place
|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
Full record since 1980
EPA's records for Sandmound Mutual go back to 1980. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 3 |
| 1990s | 0 | 1 |
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2010, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2010 | Resolved |
Enforcement actions
California regulators took 3 formal enforcement actions against Sandmound Mutual between 2019 and 2022. The most recent was a compliance order (no penalty) in September 2022.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 28, 2022 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jul 24, 2019 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jul 24, 2019 | California | Compliance order with a penalty | 1 violation: Lead and Copper Rule |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Sandmound Mutual draws water from 2 wells.
Annual water quality report
Sandmound Mutual must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Sandmound Mutual for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells