Public water system record
Portola Improvement Association MWC
Serves an area of San Mateo County, CA · 90 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Portola Improvement Association MWC in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Portola Improvement Association MWC draws water from 1 spring.
- Most recent formal enforcement: compliance order (no penalty) by California, April 2024.
- Record on file since 1980, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 34 service lines.
Check whether Portola Improvement Association MWC 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2024 | Resolved |
Full record since 1980
EPA's records for Portola Improvement Association MWC go back to 1980. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 27 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 3 |
| 1990s | 0 | 1 |
| 2000s | 0 | 22 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Mercury, began June 1980, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Mercury
Contaminant limit exceeded
|
Jun 1, 1980 | Archived |
Enforcement actions
California regulators took 1 formal enforcement action against Portola Improvement Association MWC in 2024. The most recent was a compliance order (no penalty) in April 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 29, 2024 | California | Compliance order (no penalty) | 1 violation: Surface Water Treatment Rule |
Where the water comes from
Portola Improvement Association MWC draws water from 1 spring.
Annual water quality report
Portola Improvement Association MWC 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 Portola Improvement Association MWC 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