Public water system record
Suburban Water Systems-Covina Knolls
Serves an area of Los Angeles County, CA · 1,437 people served
Federal records show no health-based violations and no monitoring or reporting issues for Suburban Water Systems-Covina Knolls 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
- 0
Key facts
- Suburban Water Systems-Covina Knolls buys its water from Covina Irrigating Co. and Walnut Valley Water District.
- Most recent formal enforcement: compliance order (no penalty) by California, July 1993.
- Record on file since 1993, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 488 service lines.
Check whether Suburban Water Systems-Covina Knolls 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, and no monitoring or reporting violations either.
Full record since 1993
EPA's records for Suburban Water Systems-Covina Knolls go back to 1993. Before October 19, 2016 they list 2 health-based violations (2 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began March 1996, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1993 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Suburban Water Systems-Covina Knolls in 1993. The most recent was a compliance order (no penalty) in July 1993.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 19, 1993 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
Where the water comes from
Suburban Water Systems-Covina Knolls buys its water from Covina Irrigating Co. and Walnut Valley Water District. It lists no wells or intakes of its own. 1 other public water system has an emergency connection to Suburban Water Systems-Covina Knolls.
Buys water from
- Covina Irrigating Co. West Covina, CA
- Walnut Valley Water District Walnut, CA
Annual water quality report
Suburban Water Systems-Covina Knolls 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