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BIG MESA WATER MDWCA

New Mexico — Community Water System — PWSID: NM3573725

System Information

PWSIDNM3573725
System NameBIG MESA WATER MDWCA
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1980
Last ReportedDec 3, 2025

Location & Contact

StateNew Mexico
CityCONCHAS DAM
ZIP Code88416
Address—
OrganizationMERKERT, BEATE
Phone575-868-4550

Population & Service

Population Served250
Service Connections572

Drinking Water Violations (319)

This water system has 319 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
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Sep 5, 2024 Lead and Copper Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Mar 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2020 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Apr 27, 2018 — Public Notice Other No No — — — Resolved Jul 2, 2018 Public Notice Rule and Revised PN Rule
Dec 30, 2017 — Lead and Copper Rule MR No No — TT — Resolved Feb 24, 2020 Lead and Copper Rule
Dec 30, 2017 — Lead and Copper Rule MR No No — TT — Resolved Feb 24, 2020 Lead and Copper Rule
Oct 1, 2017 Oct 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 16, 2017 — Public Notice Other No No — — — Resolved Jan 31, 2018 Public Notice Rule and Revised PN Rule
Jul 16, 2017 — Public Notice Other No No — — — Resolved Jan 31, 2018 Public Notice Rule and Revised PN Rule
May 1, 2017 May 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Archived May 31, 2017 Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Archived May 31, 2017 Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Archived May 31, 2017 Surface Water Treatment Rule
Jan 1, 2017 Mar 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Jan 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2017 Surface Water Treatment Rule
Jan 1, 2017 Mar 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Jan 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2017 Surface Water Treatment Rule

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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