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MANCOS RURAL WATER COMPANY

Colorado — Community Water System — PWSID: CO0142600

System Information

PWSIDCO0142600
System NameMANCOS RURAL WATER COMPANY
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityMANCOS
ZIP Code81328
Address—
OrganizationJOHNSTON, DAVE
Phone970-445-7885

Population & Service

Population Served1,300
Service Connections723

Drinking Water Violations (259)

This water system has 259 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
Jul 2, 2025 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Jul 2, 2025 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Jul 1, 2025 Sep 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2025 Consumer Confidence Rule
Jul 1, 2025 Sep 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2025 Consumer Confidence Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Aug 4, 2025 Consumer Confidence Rule
Jun 1, 2025 Jun 30, 2025 Surface Water Treatment Rule MR No Yes — — — Archived Jun 30, 2025 Surface Water Treatment Rule
Jun 1, 2025 Jun 30, 2025 Surface Water Treatment Rule MR No Yes — — — Archived Jun 30, 2025 Surface Water Treatment Rule
Jun 1, 2025 Jun 30, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Archived Jun 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2025 Jun 30, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Archived Jun 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Jun 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jan 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Nov 1, 2024 Nov 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Surface Water Treatment Rule
Feb 13, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Dec 1, 2023 Dec 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2023 Surface Water Treatment Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2023 Nitrate Rule
Oct 1, 2019 Dec 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Dec 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Dec 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Dec 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Dec 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Dec 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2019 Jun 30, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Dec 30, 2019 Lead and Copper Rule
Jan 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Dec 30, 2019 Lead and Copper Rule
Jan 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Dec 30, 2019 Lead and Copper Rule
Oct 1, 2018 Oct 31, 2018 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2018 Oct 31, 2018 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2018 Oct 31, 2018 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2018 Surface Water Treatment Rule
Oct 1, 2018 Oct 31, 2018 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2018 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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