Public water system record
Los Ojos MDWCA
Serves Los Ojos, Rio Arriba County, NM · 237 people served
Federal records show 11 health-based violations and 54 monitoring/reporting issues for Los Ojos 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
- 11
- Resolved
- 11
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 54
Key facts
- Los Ojos MDWCA draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by New Mexico, September 2017.
- Record on file since 1981, with 6 health-based violations before October 19, 2016.
Check whether Los Ojos 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 2, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 2, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 2, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 2, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 2, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Mar 1, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 13, 2018 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 4, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Groundwater Rule
OTHER
|
Dec 5, 2022 | Resolved |
|
Groundwater Rule
OTHER
|
Apr 1, 2022 | Resolved |
|
Groundwater Rule
OTHER
|
Apr 1, 2021 | Resolved |
|
Groundwater Rule
OTHER
|
Apr 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
|
Groundwater Rule
OTHER
|
Apr 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Mar 9, 2019 | Resolved |
|
Public Notice
OTHER
|
Mar 4, 2019 | Resolved |
|
Public Notice
OTHER
|
Dec 16, 2018 | Resolved |
|
Public Notice
OTHER
|
Dec 16, 2018 | Resolved |
|
Public Notice
OTHER
|
Dec 16, 2018 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 20, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 20, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 20, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 20, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 23, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 23, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 23, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 23, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 23, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 16, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 8, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 8, 2018 | Resolved |
|
Public Notice
OTHER
|
Oct 25, 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 14, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2017 | Resolved |
|
Public Notice
OTHER
|
May 20, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 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 |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2016 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2016 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Jun 2, 2016 | Resolved |
|
Public Notice
OTHER
|
Mar 14, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2014 | Resolved |
|
Public Notice
OTHER
|
Jan 24, 2014 | Resolved |
Full record since 1981
EPA's records for Los Ojos MDWCA go back to 1981. Before October 19, 2016 they list 6 health-based violations (6 resolved) and 98 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 3 | 6 |
| 2000s | 0 | 69 |
| 2010 to October 18, 2016 | 3 | 22 |
| October 19, 2016 to 2019 | 6 | 40 |
| 2020s | 5 | 7 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began January 2015, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Jan 18, 2015 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Jan 18, 2015 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Oct 23, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1996 | Resolved |
Enforcement actions
New Mexico regulators and EPA took 2 formal enforcement actions against Los Ojos MDWCA between 2002 and 2017. The most recent was a compliance order (no penalty) in September 2017.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 14, 2017 | New Mexico | Compliance order (no penalty) | 22 violations: Revised Total Coliform Rule, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Aug 7, 2002 | EPA | Compliance order (no penalty) | 2 violations: Consumer Confidence Rule |
What the violations mean
Groundwater Rule
11 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
Los Ojos MDWCA draws water from 1 well. 1 other community water system buys water from Los Ojos MDWCA.
Community systems that buy water from it
- La Asociacion De Agua De Los Brazos Los Ojos, NM
Annual water quality report
Los Ojos 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 Los Ojos 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