Public water system record
Lynwood Park Mutual Water Co.
Serves Willowbrook, Los Angeles County, CA · 1,500 people served
Federal records show 2 health-based violations and 3 monitoring/reporting issues for Lynwood Park Mutual Water Co. in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 3
Key facts
- Lynwood Park Mutual Water Co. draws water from 3 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, August 2018.
- Record on file since 1992, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 492 service lines.
Check whether Lynwood Park Mutual Water Co. 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 |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Contaminant limit exceeded
|
110 | May 1, 2018 | Resolved | Yes |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Nov 1, 2017 | Resolved | 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
Monitoring and reporting
|
Nov 17, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
Full record since 1992
EPA's records for Lynwood Park Mutual Water Co. go back to 1992. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 4 | 2 |
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 2 | 1 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2013, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1992 | Resolved |
Enforcement actions
California regulators took 3 formal enforcement actions against Lynwood Park Mutual Water Co. between 2000 and 2018. The most recent was a compliance order (no penalty) in August 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 20, 2018 | California | Compliance order (no penalty) | 2 violations (2 health-based): Revised Total Coliform Rule |
| Jul 23, 2004 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Mar 28, 2000 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
Revised Total Coliform Rule
2 incidentsThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Lynwood Park Mutual Water Co. draws water from 3 wells.
Annual water quality report
Lynwood Park Mutual Water Co. 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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