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LLANO SAN JUAN MDWCA

New Mexico — Community Water System — PWSID: NM3506429

System Information

PWSIDNM3506429
System NameLLANO SAN JUAN MDWCA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusNon-Inventory
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1980
Last ReportedDec 3, 2025

Location & Contact

StateNew Mexico
CityLLANO
ZIP Code87543
Address—
OrganizationLEHERISSEY, TANYA
Phone575-587-2063

Population & Service

Population Served84
Service Connections21

Drinking Water Violations (122)

This water system has 122 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
Mar 19, 2018 — Public Notice Other No No — — — Resolved Jun 17, 2019 Public Notice Rule and Revised PN Rule
Mar 19, 2018 — Public Notice Other No No — — — Resolved Jun 17, 2019 Public Notice Rule and Revised PN Rule
Jul 28, 2017 — Public Notice Other No No — — — Resolved Jun 17, 2019 Public Notice Rule and Revised PN Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Jul 30, 2018 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Jul 30, 2018 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Jul 30, 2018 Lead and Copper Rule
Oct 1, 2016 — Lead and Copper Rule MR No No — TT — Resolved Jul 30, 2018 Lead and Copper Rule
Oct 1, 2016 Oct 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2016 Revised Total Coliform Rule
Oct 1, 2016 Oct 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2016 Revised Total Coliform Rule
Oct 1, 2016 Oct 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2016 Revised Total Coliform Rule
Oct 1, 2016 Oct 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2016 Revised Total Coliform Rule
Sep 1, 2016 Sep 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2016 Revised Total Coliform Rule
Sep 1, 2016 Sep 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2016 Revised Total Coliform Rule
Sep 1, 2016 Sep 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2016 Revised Total Coliform Rule
Sep 1, 2016 Sep 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2016 Revised Total Coliform Rule
Aug 1, 2016 Aug 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2016 Revised Total Coliform Rule
Aug 1, 2016 Aug 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2016 Revised Total Coliform Rule
Aug 1, 2016 Aug 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2016 Revised Total Coliform Rule
Aug 1, 2016 Aug 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2016 Revised Total Coliform Rule
Jul 1, 2016 Jul 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2016 Revised Total Coliform Rule
Jul 1, 2016 Jul 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2016 Revised Total Coliform Rule
Jul 1, 2016 Jul 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2016 Revised Total Coliform Rule
Jul 1, 2016 Jul 31, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2016 Revised Total Coliform Rule
Jun 2, 2016 — Revised Total Coliform Rule Other No No — — — Resolved Nov 4, 2016 Revised Total Coliform Rule
Jun 2, 2016 — Revised Total Coliform Rule Other No No — — — Resolved Nov 4, 2016 Revised Total Coliform Rule
Jun 2, 2016 — Revised Total Coliform Rule Other No No — — — Resolved Nov 4, 2016 Revised Total Coliform Rule
Jun 2, 2016 — Revised Total Coliform Rule Other No No — — — Resolved Nov 4, 2016 Revised Total Coliform Rule
Jun 1, 2016 Jun 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2016 Revised Total Coliform Rule
Jun 1, 2016 Jun 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2016 Revised Total Coliform Rule
Jun 1, 2016 Jun 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2016 Revised Total Coliform Rule
Jun 1, 2016 Jun 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2016 Revised Total Coliform Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jun 25, 2016 Consumer Confidence Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jun 25, 2016 Consumer Confidence Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 30, 2017 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 5, 2018 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 30, 2017 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 30, 2017 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 30, 2017 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2018 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Jan 10, 2019 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2018 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2018 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 5, 2018 Ground Water Rule
Nov 6, 2014 — Groundwater Rule TT Yes No — — — Resolved Mar 5, 2018 Ground Water 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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