Public water system record
Royal Sierra Estates WS
Serves an area of Monterey County, CA · 36 people served
Federal records show 11 health-based violations and 4 monitoring/reporting issues for Royal Sierra Estates WS in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 11
- Resolved
- 11
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Royal Sierra Estates WS draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, November 2024.
- Record on file since 1997, with 18 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 24 service lines.
Check whether Royal Sierra Estates WS 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 |
|---|---|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2015 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2015 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Apr 1, 2015 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2015 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2014 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2014 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2013 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Apr 1, 2013 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jan 1, 2013 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2012 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jul 1, 2010 | 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
|
Jul 1, 2024 |
Active
Enforcement action in place
|
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2023 |
Active
Enforcement action in place
|
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2017 | Resolved |
Full record since 1997
EPA's records for Royal Sierra Estates WS go back to 1997. Before October 19, 2016 they list 18 health-based violations (17 resolved, 1 archived by EPA without a recorded fix) and 28 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 3 |
| 2000s | 5 | 21 |
| 2010 to October 18, 2016 | 11 | 4 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began October 2015, Resolved.
Show all 18 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2015 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2015 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 2015 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2015 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2014 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2014 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2013 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 2013 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2013 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2010 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2000 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1999 | Resolved |
Enforcement actions
California regulators took 4 formal enforcement actions against Royal Sierra Estates WS and issued 1 boil water order between 2008 and 2024, filed as 13 records in EPA's data. The most recent was a compliance order (no penalty) in November 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 12, 2024 | California | Compliance order (no penalty) | 2 violations: Lead and Copper Rule |
| Jun 27, 2017 | California | Compliance order (no penalty) | 2 violations: Revised Total Coliform Rule |
| Feb 5, 2015 | California | Boil water order | 12 violations (3 health-based): Surface Water Treatment Rule, Total Coliform |
| May 28, 2013 | California | Compliance order (no penalty) | 14 violations (12 health-based): Surface Water Treatment Rule |
| Nov 30, 2008 | California | Compliance order (no penalty) | 13 violations (11 health-based): Surface Water Treatment Rule |
What the violations mean
Surface Water Treatment Rule
11 incidentsThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Royal Sierra Estates WS draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Royal Sierra Estates WS 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 Royal Sierra Estates WS 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