Public water system record
Union Del Llano MDWCA
Serves an area of Taos County, NM · 400 people served
Federal records show 6 health-based violations and 21 monitoring/reporting issues for Union Del Llano MDWCA in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 6
- Resolved
- 6
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 21
Key facts
- Union Del Llano MDWCA draws water from 2 wells.
- Most recent formal enforcement: compliance order (no penalty) by New Mexico, May 2010.
- Record on file since 1999, with 0 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 86 unknown out of 112 service lines.
Check whether Union Del Llano MDWCA 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 | Mar 18, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 18, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 23, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 23, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 23, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 23, 2017 | 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, 2022 | Resolved |
|
Public Notice
OTHER
|
Aug 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Aug 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Aug 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Feb 24, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 28, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2016 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2014 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 19, 1999 | Active |
Full record since 1999
EPA's records for Union Del Llano MDWCA go back to 1999. Before October 20, 2016 they list no health-based violations and 28 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 2 |
| 2000s | 0 | 16 |
| 2010 to October 19, 2016 | 0 | 10 |
| October 20, 2016 to 2019 | 4 | 16 |
| 2020s | 2 | 1 |
Enforcement actions
New Mexico regulators took 1 formal enforcement action against Union Del Llano MDWCA in 2010. The most recent was a compliance order (no penalty) in May 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 12, 2010 | New Mexico | Compliance order (no penalty) | 4 violations: Lead and Copper Rule, Consumer Confidence Rule |
What the violations mean
Groundwater Rule
6 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
Union Del Llano MDWCA draws water from 2 wells.
Annual water quality report
Union Del Llano MDWCA 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 Union Del Llano MDWCA 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 New Mexico.
Certified drinking water labs by state EPA guidance for private wells