Public water system record
Riverside Highland Water Company
Serves Grand Terrace and Highgrove, San Bernardino County and Riverside County, CA · 20,188 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Riverside Highland Water Company in the last ten years. At least one of these issues remains unresolved.
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
- Riverside Highland Water Company draws water from 3 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, December 2024.
- Record on file since 1998, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 3,231 unknown out of 6,469 service lines.
Check whether Riverside Highland 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.
None since October 2016.
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
|
Oct 1, 2024 |
Active
Enforcement action in place
|
Full record since 1998
EPA's records for Riverside Highland Water Company go back to 1998. Before October 19, 2016 they list 1 health-based violation (1 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 1998, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1998 | Resolved |
Enforcement actions
California regulators took 2 formal enforcement actions against Riverside Highland Water Company between 1998 and 2024. The most recent was a compliance order (no penalty) in December 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 11, 2024 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jun 17, 1998 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Riverside Highland Water Company draws water from 3 wells. It also buys water from San Bernardino Valley WD. It also has emergency connections to City of Colton, City of Riverside, City of Rialto and San Bernardino City. 2 other public water systems have emergency connections to Riverside Highland Water Company.
Buys water from
- San Bernardino Valley WD San Bernardino, CA
Emergency or part-time connections to
- City of Colton Colton, CA
- City of Riverside Riverside, CA
- City of Rialto Rialto, CA
- San Bernardino City San Bernardino, CA
Annual water quality report
Riverside Highland 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 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