Public water system record
City of Trinidad
Serves Trinidad and Westhaven-Moonstone, Humboldt County, CA · 1,072 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for City of Trinidad in the last ten years. The most serious issue in this window was a resolved Chlorine violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- City of Trinidad draws water from 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by California, April 2024.
- Record on file since 1983, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 321 service lines.
Check whether City of Trinidad 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 |
|---|---|---|---|---|
|
Chlorine
Disinfectant residual limit exceeded
|
210 | Oct 1, 2019 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2019 | Resolved |
Full record since 1983
EPA's records for City of Trinidad go back to 1983. 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 |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 1 | 2 |
| 2000s | 2 | 0 |
| 2010 to October 18, 2016 | 3 | 0 |
| October 19, 2016 to 2019 | 1 | 1 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began October 2014, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Oct 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.169 mg/L, federal limit 0.06 mg/L (2.8 times the limit)
|
Apr 1, 2010 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.076 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
Apr 1, 2009 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2001 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1993 | Resolved |
Enforcement actions
California regulators took 5 formal enforcement actions against City of Trinidad between 1994 and 2024. The most recent was a compliance order (no penalty) in April 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 29, 2024 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Jun 18, 2019 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| May 18, 2011 | California | Compliance order (no penalty) | 1 violation (1 health-based): Haloacetic Acids (HAA5) |
| Aug 25, 2010 | California | Compliance order (no penalty) | 1 violation (1 health-based): Haloacetic Acids (HAA5) |
| Jul 11, 1994 | California | Signed compliance agreement | 1 violation (1 health-based): Surface Water Treatment Rule |
What the violations mean
Chlorine
1 incidentChlorine levels were above the federal maximum residual disinfectant level.
The utility had to notify customers about this violation.
Where the water comes from
City of Trinidad draws water from 1 surface water intake.
Annual water quality report
City of Trinidad 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