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SILVERTHORNE TOWN OF

Colorado — Community Water System — PWSID: CO0159095

System Information

PWSIDCO0159095
System NameSILVERTHORNE TOWN OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CitySILVERTHORNE
ZIP Code80498
Address—
OrganizationSHELDEN, CHRIS D
Phone970-513-4870

Population & Service

Population Served8,414
Service Connections2,424

Drinking Water Violations (361)

This water system has 361 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 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Jul 15, 2025 Consumer Confidence Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Jul 15, 2025 Consumer Confidence Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Jul 15, 2025 Consumer Confidence Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2020 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2020 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2020 Volatile Organic Chemicals
Jan 1, 2020 Dec 31, 2020 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2020 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 LASSO MR No Yes — — — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 LASSO MR No Yes — — — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals

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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