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MONTEZUMA CNTY WD NO 1

Colorado — Community Water System — PWSID: CO0142800

System Information

PWSIDCO0142800
System NameMONTEZUMA CNTY WD NO 1
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityCORTEZ
ZIP Code81321
Address—
OrganizationALLEN, TRESSA
Phone970-565-3343

Population & Service

Population Served490
Service Connections242

Drinking Water Violations (84)

This water system has 84 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
Sep 8, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Sep 8, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Addressed — Consumer Confidence Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Addressed — Consumer Confidence Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Addressed — Consumer Confidence Rule
Jun 8, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Jun 8, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Mar 8, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Mar 8, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Addressed — Lead and Copper Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Addressed — Lead and Copper Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Addressed — Lead and Copper Rule
Dec 8, 2024 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Dec 8, 2024 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Addressed — Lead and Copper Rule Revisions
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Addressed — Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Addressed — Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Addressed — Consumer Confidence Rule
Oct 6, 2023 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Oct 6, 2023 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Jul 6, 2023 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Jul 6, 2023 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 10, 2018 Consumer Confidence Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 10, 2018 Consumer Confidence Rule
Jul 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Jul 10, 2018 Consumer Confidence Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 25, 2018 Lead and Copper Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 25, 2018 Lead and Copper Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 25, 2018 Lead and Copper Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2017 Surface Water Treatment Rule
Nov 1, 2015 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Oct 5, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2015 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Oct 5, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jun 22, 2016 Consumer Confidence Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Jun 22, 2016 Consumer Confidence Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jun 22, 2016 Consumer Confidence Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jun 22, 2016 Consumer Confidence Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jun 22, 2016 Consumer Confidence Rule
Mar 1, 2002 Mar 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2002 Total Coliform 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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