Public water system record
Twilight WC
Serves an area of La Plata County, CO · 78 people served
Federal records show 4 health-based violations and 15 monitoring/reporting issues for Twilight WC in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 3
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 15
Key facts
- Twilight WC draws water from 2 wells.
- Lead pipe inventory: 0 lead and 0 unknown out of 46 service lines.
Check whether Twilight WC 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 2, 2017 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 2, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 2, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 2, 2017 | 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
|
May 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Apr 16, 2020 | Resolved |
|
Public Notice
OTHER
|
Jan 16, 2020 | Resolved |
|
Public Notice
OTHER
|
Oct 16, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Apr 16, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Jan 16, 2019 | Resolved |
|
Public Notice
OTHER
|
Apr 16, 2018 | Resolved |
|
Public Notice
OTHER
|
Jan 16, 2018 | Resolved |
|
Public Notice
OTHER
|
Oct 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 16, 2017 | Resolved |
What the violations mean
Groundwater Rule
4 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Twilight WC draws water from 2 wells.
Annual water quality report
Twilight WC 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 Twilight WC 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 Colorado.
Certified drinking water labs by state EPA guidance for private wells