Public water system record
Agua Sana WUA
Serves Hernandez, San Jose, Chili and 1 more place, Rio Arriba County, NM · 1,514 people served
Federal records show 15 health-based violations and 42 monitoring/reporting issues for Agua Sana WUA in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
Source water
Groundwater
ZIP
87537
EPA system ID
NM3502421
- Health-based violations, last 10 years
- 15
- Resolved
- 15
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 42
Key facts
- Agua Sana WUA draws water from 2 wells.
- Highest measured level in the last 10 years: Arsenic, 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit), 2019.
- Most recent formal enforcement: compliance order (no penalty) by New Mexico, June 2013.
- Record on file since 2004, with 32 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 528 unknown out of 528 service lines.
Check whether Agua Sana WUA 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 | Nov 16, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 16, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 16, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 16, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
330 | Apr 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jan 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Oct 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Apr 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jan 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Oct 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jul 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Apr 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jan 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | 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
|
Sep 29, 2025 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Jan 6, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2021 | Active |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Nov 5, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Mar 28, 2020 | Resolved |
|
Public Notice
OTHER
|
Jan 12, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2019 | Resolved |
|
Public Notice
OTHER
|
May 20, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2018 | Resolved |
|
Public Notice
OTHER
|
Dec 27, 2018 | Resolved |
|
Public Notice
OTHER
|
Nov 23, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Apr 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Nov 17, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 18, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 18, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 18, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 18, 2017 | Resolved |
|
Public Notice
OTHER
|
Oct 8, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Public Notice
OTHER
|
Apr 20, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2016 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2016 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Jun 2, 2016 | Resolved |
|
Public Notice
OTHER
|
Feb 22, 2015 | Resolved |
Full record since 2004
EPA's records for Agua Sana WUA go back to 2004. Before October 19, 2016 they list 32 health-based violations (32 resolved) and 68 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 4 | 23 |
| 2010 to October 18, 2016 | 28 | 45 |
| October 19, 2016 to 2019 | 14 | 20 |
| 2020s | 0 | 17 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2016, Resolved.
Show all 32 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
Oct 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
Jan 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Oct 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jul 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Apr 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Dec 8, 2011 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Oct 8, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jul 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jan 1, 2008 | Resolved |
Enforcement actions
New Mexico regulators took 2 formal enforcement actions against Agua Sana WUA between 2009 and 2013. The most recent was a compliance order (no penalty) in June 2013.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 18, 2013 | New Mexico | Compliance order (no penalty) | 6 violations (1 health-based): Consumer Confidence Rule, Chlorine, Groundwater Rule |
| Oct 7, 2009 | New Mexico | Compliance order (no penalty) | 40 violations (40 health-based): Arsenic |
What the violations mean
Arsenic
11 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
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
Agua Sana WUA draws water from 2 wells.
Annual water quality report
Agua Sana WUA 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 New Mexico.
Certified drinking water labs by state EPA guidance for private wells