Public water system record
Thornton Water Association
Serves Ferndale, Whatcom County, WA · 55 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Thornton Water Association 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
- 1
Key facts
- Thornton Water Association draws water from 1 well.
- Record on file since 1979, with 4 health-based violations before October 19, 2016.
Check whether Thornton Water Association 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2025 | Resolved |
Full record since 1979
EPA's records for Thornton Water Association go back to 1979. Before October 19, 2016 they list 4 health-based violations (4 archived by EPA without a recorded fix) and 12 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 9 |
| 1990s | 3 | 3 |
| 2000s | 1 | 0 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2003, Archived.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2003 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1996 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1996 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1995 | Archived |
Where the water comes from
Thornton Water Association draws water from 1 well. It also has an emergency connection to Ferndale.
Emergency or part-time connections to
- Ferndale Ferndale, WA
Annual water quality report
Thornton Water Association 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 Thornton Water Association 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 Washington.
Certified drinking water labs by state EPA guidance for private wells