Public water system record
Town of Nucla
Serves an area of Montrose County, CO that includes Nucla · 875 people served
Federal records show 1 health-based violation and 19 monitoring/reporting issues for Town of Nucla in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 19
Key facts
- Town of Nucla buys its water from Mustang Water Authority.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.08887 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2016.
- Most recent enforcement action: boil water order by Colorado, February 2024.
- Record on file since 1995, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 538 unknown out of 698 service lines.
Check whether Town of Nucla 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 |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.08887 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2016 | 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
|
Oct 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Apr 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2023 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Nov 1, 2023 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Jan 30, 2018 | Resolved |
|
Public Notice
OTHER
|
Oct 30, 2017 | Resolved |
|
Public Notice
OTHER
|
Jul 30, 2017 | Resolved |
|
Public Notice
OTHER
|
Jan 15, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 28, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
Full record since 1995
EPA's records for Town of Nucla go back to 1995. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 24 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 0 | 10 |
| 2010 to October 18, 2016 | 2 | 13 |
| October 19, 2016 to 2019 | 0 | 5 |
| 2020s | 0 | 12 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2016, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.08887 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09931 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2016 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1995 | Resolved |
Enforcement actions
Colorado regulators issued 4 boil water orders to Town of Nucla between 2020 and 2024. The most recent was a boil water order in February 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 6, 2024 | Colorado | Boil water order | 1 violation |
| May 31, 2023 | Colorado | Boil water order | 1 violation |
| Nov 17, 2021 | Colorado | Boil water order | 1 violation |
| Oct 21, 2020 | Colorado | Boil water order | 1 violation |
What the violations mean
Total Trihalomethanes (TTHMs)
1 incidentDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Where the water comes from
Town of Nucla buys its water from Mustang Water Authority. It lists no wells or intakes of its own.
Buys water from
- Mustang Water Authority Nucla, CO
Annual water quality report
Town of Nucla 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 Colorado.
Certified drinking water labs by state EPA guidance for private wells