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LEFT HAND WD

Colorado — Community Water System — PWSID: CO0107471

System Information

PWSIDCO0107471
System NameLEFT HAND WD
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 20, 1979
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityNIWOT
ZIP Code80544
Address—
OrganizationWHITMORE, JASON
Phone303-530-4200

Population & Service

Population Served20,280
Service Connections7,769

Drinking Water Violations (202)

This water system has 202 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
Nov 1, 2017 Nov 30, 2017 E. COLI MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 E. COLI MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Turbidity MR No Yes — TT — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Cryptosporidium MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Cryptosporidium MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Turbidity MR No Yes — TT — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Turbidity MR No Yes — TT — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 E. COLI MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Cryptosporidium MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Turbidity MR No Yes — TT — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 Cryptosporidium MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Nov 1, 2017 Nov 30, 2017 E. COLI MR No Yes — — — Resolved Nov 30, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2015 Sep 30, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 Sep 30, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 Sep 30, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jan 1, 2005 Dec 31, 2007 Di(2-ethylhexyl) phthalate MR No No — 0.006 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Di(2-ethylhexyl) phthalate MR No No — 0.006 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Di(2-ethylhexyl) phthalate MR No No — 0.006 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Picloram MR No No — 0.5 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Picloram MR No No — 0.5 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Aldicarb sulfoxide MR No No — — — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Simazine MR No No — 0.004 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Simazine MR No No — 0.004 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Atrazine MR No No — 0.003 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor epoxide MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 OXAMYL MR No No — 0.2 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 OXAMYL MR No No — 0.2 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Simazine MR No No — 0.004 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbofuran MR No No — 0.04 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbofuran MR No No — 0.04 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbofuran MR No No — 0.04 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor epoxide MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Endrin MR No No — 0.002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4-D MR No No — 0.07 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4-D MR No No — 0.07 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4-D MR No No — 0.07 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Pentachlorophenol MR No No — 0.001 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Pentachlorophenol MR No No — 0.001 mg/L — Resolved Dec 31, 2007 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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