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BUTTERMILK MD

Colorado — Community Water System — PWSID: CO0149160

System Information

PWSIDCO0149160
System NameBUTTERMILK MD
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMay 17, 2005
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityBASALT
ZIP Code81621
Address—
OrganizationKORPELA, JAMES
Phone970-273-3100

Population & Service

Population Served200
Service Connections64

Drinking Water Violations (688)

This water system has 688 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 5, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 5, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Apr 5, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jan 5, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jan 1, 2025 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Unaddressed — 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 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Unaddressed — 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 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 5, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Sep 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 20, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 20, 2024 Revised Total Coliform Rule
Jul 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 20, 2024 Revised Total Coliform Rule
Jul 1, 2024 Sep 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 20, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Jul 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2024 Surface Water Treatment Rule
Jul 1, 2024 Sep 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 20, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 20, 2024 Revised Total Coliform Rule
Jun 11, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Mar 11, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Dec 11, 2023 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Sep 11, 2023 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 24, 2018 — Public Notice Other No No — — — Resolved Jun 26, 2019 Public Notice Rule and Revised PN Rule
Sep 24, 2018 — Public Notice Other No No — — — Resolved Jun 26, 2019 Public Notice Rule and Revised PN Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 23, 2018 Lead and Copper Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 23, 2018 Lead and Copper Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 23, 2018 Lead and Copper Rule
Jan 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jan 23, 2018 Lead and Copper Rule
Sep 24, 2017 — Public Notice Other No No — — — Resolved Jun 26, 2019 Public Notice Rule and Revised PN Rule
Sep 24, 2017 — Public Notice Other No No — — — Resolved Jun 26, 2019 Public Notice Rule and Revised PN Rule
Mar 13, 2017 — Public Notice Other No No — — — Resolved Aug 25, 2017 Public Notice Rule and Revised PN Rule
Mar 13, 2017 — Public Notice Other No No — — — Resolved Aug 25, 2017 Public Notice Rule and Revised PN Rule
Mar 13, 2017 — Public Notice Other No No — — — Resolved Aug 25, 2017 Public Notice Rule and Revised PN Rule
Jan 22, 2017 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2017 Ground Water Rule
Jan 22, 2017 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2017 Ground Water Rule
Jan 22, 2017 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2017 Ground Water Rule
Jan 22, 2017 — Groundwater Rule TT Yes No — — — Resolved Aug 3, 2017 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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