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NUCLA TOWN OF

Colorado — Community Water System — PWSID: CO0143559

System Information

PWSIDCO0143559
System NameNUCLA TOWN OF
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
CityNUCLA
ZIP Code81424
Address—
OrganizationLAMPSHIRE, MELISSA L
Phone970-864-7351

Population & Service

Population Served875
Service Connections650

Drinking Water Violations (145)

This water system has 145 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, 2024 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2025 Lead and Copper Rule
Oct 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2025 Lead and Copper Rule
Oct 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2025 Lead and Copper Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Apr 1, 2024 Apr 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2024 Surface Water Treatment Rule
Apr 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 10, 2024 Revised Total Coliform Rule
Apr 1, 2024 Jun 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 10, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 10, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 10, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 10, 2024 Revised Total Coliform Rule
Apr 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 10, 2024 Revised Total Coliform Rule
Jan 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Oct 24, 2024 Lead and Copper Rule
Jan 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Oct 24, 2024 Lead and Copper Rule
Jan 1, 2024 — Lead and Copper Rule MR No No — TT — Resolved Oct 24, 2024 Lead and Copper Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 Nov 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2023 Surface Water Treatment Rule
Nov 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 11, 2023 Revised Total Coliform Rule
Nov 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 11, 2023 Revised Total Coliform Rule
Nov 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Dec 11, 2023 Revised Total Coliform Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 11, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 11, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 11, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Oct 13, 2023 Lead and Copper Rule
Oct 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Oct 13, 2023 Lead and Copper Rule
Oct 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved Oct 13, 2023 Lead and Copper Rule
Oct 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Oct 26, 2021 Lead and Copper Rule
Oct 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Oct 26, 2021 Lead and Copper Rule
Oct 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Oct 26, 2021 Lead and Copper Rule
Jan 30, 2018 — Public Notice Other No No — — — Resolved May 17, 2018 Public Notice Rule and Revised PN Rule
Jan 30, 2018 — Public Notice Other No No — — — Resolved May 17, 2018 Public Notice Rule and Revised PN Rule
Oct 30, 2017 — Public Notice Other No No — — — Resolved May 17, 2018 Public Notice Rule and Revised PN Rule
Oct 30, 2017 — Public Notice Other No No — — — Resolved May 17, 2018 Public Notice Rule and Revised PN Rule
Jul 30, 2017 — Public Notice Other No No — — — Resolved May 17, 2018 Public Notice Rule and Revised PN Rule
Jul 30, 2017 — Public Notice Other No No — — — Resolved May 17, 2018 Public Notice Rule and Revised PN Rule
Jan 15, 2017 — Public Notice Other No No — — — Resolved Mar 3, 2017 Public Notice Rule and Revised PN Rule
Jan 15, 2017 — Public Notice Other No No — — — Resolved Mar 3, 2017 Public Notice Rule and Revised PN Rule
Oct 28, 2016 — Public Notice Other No No — — — Resolved Dec 22, 2016 Public Notice Rule and Revised PN Rule
Oct 28, 2016 — Public Notice Other No No — — — Resolved Dec 22, 2016 Public Notice Rule and Revised PN Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .08887 MG/L 0.080 mg/L .08 Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .08887 MG/L 0.080 mg/L .08 Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .08887 MG/L 0.080 mg/L .08 Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts 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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