SAN MATEO MDWCA

New Mexico — Community Water System — PWSID: NM3525733

System Information

PWSIDNM3525733
System NameSAN MATEO MDWCA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedOct 21, 1981
Last ReportedMar 31, 2026

Location & Contact

StateNew Mexico
CityMILAN
ZIP Code87021
Address
OrganizationORTEGA, LLOYD
Phone505-287-8108

Population & Service

Population Served182
Service Connections55

Drinking Water Violations (137)

This water system has 137 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Oct 1, 2025 MR No No TT Unaddressed
Jul 1, 2025 Other No No Resolved Sep 19, 2025
Jul 1, 2025 Other No No Resolved Sep 19, 2025
Oct 1, 2024 Other No No Resolved Oct 7, 2024
Oct 1, 2024 Other No No Resolved Oct 7, 2024
Jul 1, 2024 Other No No Resolved Oct 3, 2024
Jul 1, 2024 Other No No Resolved Oct 3, 2024
Nov 24, 2023 MR No Yes Resolved Nov 27, 2023
Nov 24, 2023 MR No Yes Resolved Nov 27, 2023
Nov 24, 2023 MR No Yes Resolved Nov 27, 2023
Jun 15, 2023 TT Yes No Resolved Oct 13, 2023
Oct 1, 2021 MR No No TT Resolved Jul 27, 2022
Oct 1, 2021 MR No No TT Resolved Jul 27, 2022
Oct 1, 2021 MR No No TT Resolved Jul 27, 2022
Oct 1, 2021 MR No No TT Resolved Jul 27, 2022
Oct 1, 2021 Other No No Resolved Oct 26, 2021
Oct 1, 2021 Other No No Resolved Oct 26, 2021
Dec 20, 2019 Other No No Resolved May 22, 2020
Oct 1, 2018 Other No No Resolved Nov 19, 2018
Oct 1, 2018 Other No No Resolved Nov 19, 2018
Sep 21, 2018 TT Yes No Resolved Nov 19, 2018
Sep 21, 2018 TT Yes No Resolved Nov 19, 2018
Sep 21, 2018 TT Yes No Resolved Nov 19, 2018
Sep 21, 2018 TT Yes No Resolved Nov 19, 2018
Sep 21, 2018 TT Yes No Resolved May 7, 2019
Sep 21, 2018 TT Yes No Resolved May 7, 2019
Sep 21, 2018 TT Yes No Resolved May 7, 2019
Sep 21, 2018 TT Yes No Resolved May 7, 2019
Oct 1, 2017 Other No No Resolved Feb 13, 2018
Jun 18, 2017 Other No No Resolved May 27, 2020
Jun 2, 2016 Other No No Resolved Aug 3, 2016
Jun 2, 2016 Other No No Resolved Aug 3, 2016
Jun 2, 2016 Other No No Resolved Aug 3, 2016
Jun 2, 2016 Other No No Resolved Aug 3, 2016
Apr 25, 2016 TT Yes No Unaddressed
Apr 25, 2016 TT Yes No Unaddressed
Sep 1, 2015 Sep 30, 2015 MCL Yes No 5% of samples Resolved Sep 30, 2015
Sep 1, 2015 Sep 30, 2015 MCL Yes No 5% of samples Resolved Sep 30, 2015
Sep 1, 2015 Sep 30, 2015 MCL Yes No 5% of samples Resolved Sep 30, 2015
Sep 1, 2015 Sep 30, 2015 MCL Yes No 5% of samples Resolved Sep 30, 2015
Apr 1, 2003 Apr 30, 2003 MR No No 5% of samples Resolved Apr 30, 2003
Apr 1, 2003 Apr 30, 2003 Other No No 5% of samples Resolved Oct 31, 2002
Apr 1, 2003 Apr 30, 2003 Other No No 5% of samples Resolved Aug 31, 2002
Apr 1, 2003 Apr 30, 2003 MR No No 5% of samples Resolved Apr 30, 2003
Apr 1, 2003 Apr 30, 2003 MR No No 5% of samples Resolved Apr 30, 2003
Oct 1, 2002 Oct 31, 2002 MR No No 5% of samples Resolved Dec 31, 2001
Oct 1, 2002 Oct 31, 2002 MR No No 5% of samples Resolved Dec 31, 2001
Oct 1, 2002 Oct 31, 2002 MR No No 5% of samples Resolved Dec 31, 2001
Oct 1, 2002 Oct 31, 2002 Other No No 5% of samples Resolved Dec 31, 2001
Oct 1, 2002 Oct 31, 2002 MR No No 5% of samples Resolved Dec 31, 2001

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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