Public water system record
North San Ysidro MDWCA
Serves North San Ysidro, San Miguel County, NM · 133 people served
Federal records show 7 health-based violations and 26 monitoring/reporting issues for North San Ysidro 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
- 7
- Resolved
- 7
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 26
Key facts
- North San Ysidro MDWCA draws water from 1 well.
- Most recent formal enforcement: compliance order with a penalty by New Mexico, May 2018.
- Record on file since 1984, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 44 unknown out of 45 service lines.
Check whether North San Ysidro 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 | Apr 15, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2017 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Nov 16, 2016 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Jul 14, 2016 | 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
|
Jul 1, 2025 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 30, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Jun 15, 2020 | Resolved |
|
Groundwater Rule
OTHER
|
Jan 19, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Nov 22, 2018 | Resolved |
|
Public Notice
OTHER
|
Jul 11, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 19, 2018 | Resolved |
|
Public Notice
OTHER
|
Mar 19, 2018 | Resolved |
|
Public Notice
OTHER
|
Feb 10, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
|
Public Notice
OTHER
|
Jun 18, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2015 | Resolved |
|
Public Notice
OTHER
|
Feb 12, 2015 | Resolved |
|
Public Notice
OTHER
|
Feb 12, 2015 | Resolved |
Full record since 1984
EPA's records for North San Ysidro MDWCA go back to 1984. Before October 19, 2016 they list 7 health-based violations (6 resolved, 1 archived by EPA without a recorded fix) and 37 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 1 |
| 1990s | 0 | 1 |
| 2000s | 2 | 20 |
| 2010 to October 18, 2016 | 4 | 15 |
| October 19, 2016 to 2019 | 5 | 10 |
| 2020s | 1 | 11 |
Most recent health-based violation before October 19, 2016: Revised Total Coliform Rule, began July 2016, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
Jul 14, 2016 | Resolved |
|
Revised Total Coliform Rule (acute)
Contaminant limit exceeded
|
Jun 1, 2016 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Oct 30, 2013 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Aug 4, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2007 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 1986 | Archived |
Enforcement actions
New Mexico regulators and EPA took 4 formal enforcement actions against North San Ysidro MDWCA and issued 1 boil water order between 1987 and 2018. The most recent was a compliance order with a penalty in May 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 9, 2018 | New Mexico | Compliance order with a penalty | 11 violations (7 health-based): Lead and Copper Rule, Consumer Confidence Rule, Groundwater Rule, Revised Total Coliform Rule |
| Mar 1, 2017 | New Mexico | Compliance order (no penalty) | 3 violations (2 health-based): Consumer Confidence Rule, Revised Total Coliform Rule |
| Oct 5, 2015 | EPA | Compliance order (no penalty) | 2 violations: Consumer Confidence Rule |
| Aug 7, 2002 | EPA | Compliance order (no penalty) | 3 violations: Consumer Confidence Rule |
| Sep 30, 1987 | New Mexico | Boil water order | 1 violation |
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.
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
North San Ysidro MDWCA draws water from 1 well.
Annual water quality report
North San Ysidro 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 North San Ysidro 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