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Public water system record

Rio Chiquito MDWCA

Serves Chimayo and Rio Chiquito, Santa Fe County, NM · 152 people served

Federal records show 8 health-based violations and 21 monitoring/reporting issues for Rio Chiquito MDWCA in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.

  • NM3504926
  • CHIMAYO
  • NM
  • 152 served

System profile

Source water Groundwater
ZIP 87522
EPA system ID NM3504926

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
8
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
21

Key facts

  • Rio Chiquito MDWCA draws water from 1 well.
  • Record on file since 1995, with 8 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 69 unknown out of 69 service lines.

Check whether Rio Chiquito MDWCA serves your address

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Health-based violations

Since October 2016

Violation 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 Oct 14, 2018 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 19, 2018 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 19, 2018 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 19, 2018 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 19, 2018 Resolved No
Groundwater Rule
Treatment technique failure
 140 Mar 5, 2015 Resolved No
Groundwater Rule
Treatment technique failure
 140 Dec 8, 2014 Resolved No
Groundwater Rule
Treatment technique failure
 140 Dec 8, 2014 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
 Oct 1, 2025 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2022 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2021 Resolved
Public Notice
OTHER
 Mar 12, 2020 Resolved
Public Notice
OTHER
 Jan 10, 2019 Resolved
Public Notice
OTHER
 Jan 10, 2019 Resolved
Public Notice
OTHER
 Jan 10, 2019 Resolved
Public Notice
OTHER
 Mar 8, 2018 Resolved
Public Notice
OTHER
 Mar 8, 2018 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 7, 2017 Resolved
Consumer Confidence Rule
OTHER
 Jul 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
Revised Total Coliform Rule
OTHER
 Jun 2, 2016 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2015 Resolved

Full record since 1995

EPA's records for Rio Chiquito MDWCA go back to 1995. Before October 19, 2016 they list 8 health-based violations (8 resolved) and 26 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 5
2000s 0 9
2010 to October 18, 2016 8 12
October 19, 2016 to 2019 5 13
2020s 0 5

Most recent health-based violation before October 19, 2016: Groundwater Rule, began March 2015, Resolved.

Show all 8 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
 Mar 5, 2015 Resolved
Groundwater Rule
Treatment technique failure
 Mar 5, 2015 Resolved
Groundwater Rule
Treatment technique failure
 Mar 5, 2015 Resolved
Groundwater Rule
Treatment technique failure
 Mar 5, 2015 Resolved
Groundwater Rule
Treatment technique failure
 Dec 8, 2014 Resolved
Groundwater Rule
Treatment technique failure
 Dec 8, 2014 Resolved
Groundwater Rule
Treatment technique failure
 Dec 8, 2014 Resolved
Groundwater Rule
Treatment technique failure
 Dec 8, 2014 Resolved

What the violations mean

Groundwater Rule

8 incidents

The 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

Rio Chiquito MDWCA draws water from 1 well.

Annual water quality report

Rio Chiquito 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 Rio Chiquito 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