Public water system record
Magic Mountain Mutual Water Company
Serves an area of Sonoma County, CA · 221 people served
Federal records show 2 health-based violations and 2 monitoring/reporting issues for Magic Mountain Mutual Water Company in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Magic Mountain Mutual Water Company draws water from 1 well.
- Most recent formal enforcement: compliance order with a penalty by California, January 2021.
- Record on file since 1981, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 68 service lines.
Check whether Magic Mountain Mutual Water Company 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Apr 1, 2019 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Feb 25, 2014 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Miscellaneous Other Rules
OTHER
|
Jan 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
Full record since 1981
EPA's records for Magic Mountain Mutual Water Company go back to 1981. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 26 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 25 |
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 2 | 0 |
| October 19, 2016 to 2019 | 1 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began March 2014, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2014 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Feb 25, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2007 | Resolved |
Enforcement actions
California regulators took 5 formal enforcement actions against Magic Mountain Mutual Water Company between 2006 and 2021. The most recent was a compliance order with a penalty in January 2021.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 27, 2021 | California | Compliance order with a penalty | 1 violation: Miscellaneous Other Rules |
| Feb 5, 2019 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Mar 1, 2018 | California | Compliance order (no penalty) | 2 violations (2 health-based): Lead and Copper Rule, Groundwater Rule |
| May 16, 2014 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Nov 27, 2006 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
What the violations mean
Groundwater Rule
1 incidentThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Magic Mountain Mutual Water Company draws water from 1 well.
Annual water quality report
Magic Mountain Mutual Water Company 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 Magic Mountain Mutual Water Company 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