Public water system record
Rainbow Municipal WD
Serves an area of San Diego County, CA that includes Bonsall, Rainbow and Fallbrook · 23,536 people served
Federal records show no health-based violations and no monitoring or reporting issues for Rainbow Municipal WD 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
- Rainbow Municipal WD buys its water from San Diego County Water Authority.
- Most recent formal enforcement: compliance order (no penalty) by California, March 2010.
- Record on file since 1989, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 67 unknown out of 9,017 service lines.
Check whether Rainbow Municipal WD 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 1989
EPA's records for Rainbow Municipal WD go back to 1989. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 2 | 0 |
| 2000s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2003, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1993 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1993 | Resolved |
Enforcement actions
California regulators took 2 formal enforcement actions against Rainbow Municipal WD between 2004 and 2010. The most recent was a compliance order (no penalty) in March 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 15, 2010 | California | Compliance order (no penalty) | 1 violation: Miscellaneous Other Rules |
| Apr 30, 2004 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Rainbow Municipal WD buys its water from San Diego County Water Authority. It lists no wells or intakes of its own. It also has emergency connections to Fallbrook PUD and City of Oceanside. 2 other public water systems have emergency connections to Rainbow Municipal WD.
Buys water from
- San Diego County Water Authority San Diego, CA
Emergency or part-time connections to
- Fallbrook PUD Fallbrook, CA
- City of Oceanside Oceanside, CA
Annual water quality report
Rainbow Municipal WD 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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