Public water system record

Twin Forks MDWCA

Serves an area of Otero County, NM that includes Mayhill and Twin Forks · 1,274 people served

Federal records show no health-based violations and 42 monitoring/reporting issues for Twin Forks MDWCA in the last ten years. At least one of these issues remains unresolved.

  • NM3571119
  • MAYHILL
  • NM
  • 1,274 served

System profile

Source water Groundwater
ZIP 88339
EPA system ID NM3571119

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
42

Key facts

  • Twin Forks MDWCA draws water from 2 wells.
  • Most recent formal enforcement: compliance order (no penalty) by EPA, October 2015.
  • Record on file since 1991, with 24 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 475 service lines.

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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.

None since October 2016.

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Chlorine
Monitoring and reporting
Nov 1, 2025 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2025 Resolved
Public Notice
OTHER
Jun 3, 2022 Resolved
Public Notice
OTHER
Nov 20, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2020 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved
Public Notice
OTHER
Dec 4, 2016 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2016 Resolved
Chlordane
Monitoring and reporting
Jan 1, 2014 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Jan 1, 2014 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Jan 1, 2014 Resolved
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
Jan 1, 2014 Resolved
Pentachlorophenol
Monitoring and reporting
Jan 1, 2014 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jan 1, 2014 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jan 1, 2014 Resolved
2,4,5-TP
Monitoring and reporting
Jan 1, 2014 Resolved
2,4-D
Monitoring and reporting
Jan 1, 2014 Resolved
Heptachlor epoxide
Monitoring and reporting
Jan 1, 2014 Resolved
Heptachlor
Monitoring and reporting
Jan 1, 2014 Resolved
LASSO
Monitoring and reporting
Jan 1, 2014 Resolved
Atrazine
Monitoring and reporting
Jan 1, 2014 Resolved
Carbofuran
Monitoring and reporting
Jan 1, 2014 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jan 1, 2014 Resolved
Dinoseb
Monitoring and reporting
Jan 1, 2014 Resolved
Picloram
Monitoring and reporting
Jan 1, 2014 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jan 1, 2014 Resolved
Simazine
Monitoring and reporting
Jan 1, 2014 Resolved
OXAMYL
Monitoring and reporting
Jan 1, 2014 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jan 1, 2014 Resolved
Glyphosate
Monitoring and reporting
Jan 1, 2014 Resolved
Endothall
Monitoring and reporting
Jan 1, 2014 Resolved
Diquat
Monitoring and reporting
Jan 1, 2014 Resolved
Dalapon
Monitoring and reporting
Jan 1, 2014 Resolved
Toxaphene
Monitoring and reporting
Jan 1, 2014 Resolved
Methoxychlor
Monitoring and reporting
Jan 1, 2014 Resolved
BHC-GAMMA
Monitoring and reporting
Jan 1, 2014 Resolved
Endrin
Monitoring and reporting
Jan 1, 2014 Resolved
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
Jul 2, 2010 Active

Full record since 1991

EPA's records for Twin Forks MDWCA go back to 1991. Before October 19, 2016 they list 24 health-based violations (23 resolved, 1 archived by EPA without a recorded fix) and 87 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 4 2
2000s 15 17
2010 to October 18, 2016 5 68
October 19, 2016 to 2019 0 4
2020s 0 6

Most recent health-based violation before October 19, 2016: Groundwater Rule, began September 2010, Resolved.

Show all 24 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
Sep 8, 2010 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Apr 1, 2010 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Mar 1, 2010 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Feb 1, 2010 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Jan 1, 2010 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Dec 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Nov 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Oct 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Sep 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Apr 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Mar 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Feb 1, 2009 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 25, 2008 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2008 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2005 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Sep 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
May 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
Jan 1, 1996 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 1995 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Oct 1, 1995 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 1991 Archived

Enforcement actions

New Mexico regulators and EPA took 5 formal enforcement actions against Twin Forks MDWCA and issued 1 boil water order between 1996 and 2015. The most recent was a compliance order (no penalty) in October 2015.

Date By Action Violations covered
Oct 5, 2015 EPA Compliance order (no penalty) 8 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Consumer Confidence Rule, Public Notice
Jan 19, 2011 New Mexico Signed compliance agreement 14 violations (9 health-based): Interim Enhanced Surface Water Treatment Rule
Nov 24, 2008 New Mexico Compliance order (no penalty) 10 violations (7 health-based): Total Coliform, Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule
Oct 12, 2005 New Mexico Compliance order (no penalty) 2 violations (2 health-based): Total Coliform
Sep 16, 2005 New Mexico Boil water order 1 violation
Sep 16, 1996 EPA Compliance order (no penalty) 3 violations (3 health-based): Total Coliform

Where the water comes from

Twin Forks MDWCA draws water from 2 wells.

Annual water quality report

Twin Forks 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.

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.