CHIMAYO, NM · Rio Arriba County
LLANO CHIMAYO MDWCA Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of March 17, 2009. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Rio Arriba County, NM.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace New Mexico’s official records. Always confirm current status with New Mexico before making decisions based on this information.
System facts
- System ID (PWSID)
- NM3502521
- System type
- Community Water System
- Population served
- 30
- Service connections
- 24
- Ownership
- local government
- Water source
- groundwater (wells)
LLANO CHIMAYO MDWCA is one of 667 community water systems in New Mexico in the 500 or fewer people size category, formerly serving 30 people from groundwater.
EPA's federal records list this system as inactive in 2009; the record below is historical.
As of August 1, 2026, its federal record holds 9 entries between 1992 and 2006, all of which EPA lists as closed. Nothing has been added since 2006.
Of the 9, 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Consumer Confidence Rule and inorganic chemicals.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
October 1, 2006 – March 17, 2009
ResolvedMonitoring, Regular
—Nitrate-Nitrite
July 1, 2006 – September 30, 2006
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2006 – May 20, 2007
ResolvedMonitoring, Regular
—Nitrate-Nitrite
April 1, 2006 – June 30, 2006
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2005 – March 17, 2009
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2004 – May 20, 2007
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2004 – September 13, 2004
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2002 – September 13, 2004
ResolvedMaximum Contaminant Level Violation, Average
Health-basedNitrate
September 1, 1992 – August 31, 1995
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2006 – March 17, 2009 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| July 1, 2006 – September 30, 2006 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| July 1, 2006 – May 20, 2007 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| July 1, 2005 – March 17, 2009 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2004 – May 20, 2007 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2004 – September 13, 2004 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2002 – September 13, 2004 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| September 1, 1992 – August 31, 1995 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- December 1, 2010State Public Notification requested1 linked violation
- December 1, 2010State Violation/Reminder Notice1 linked violation
- December 1, 2010State Public Notification requested1 linked violation
- December 1, 2010State Violation/Reminder Notice1 linked violation
- July 8, 2009State Compliance achieved3 linked violations
- May 20, 2007State Compliance achieved2 linked violations
- October 18, 2006State Compliance achieved2 linked violations
- August 21, 2006State Public Notification requested4 linked violations
Last known contact on file (system is inactive)
MARTINEZ, TOMAS
505-351-4851
CHIMAYO, NM 87522