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STAR VALLEY RANCH, TOWN OF

Wyoming — Community Water System — PWSID: WY5600287

System Information

PWSIDWY5600287
System NameSTAR VALLEY RANCH, TOWN OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedNov 17, 2025

Location & Contact

StateWyoming
CitySTAR VALLEY RANCH
ZIP Code83127
Address171 Vista Drive #7007
OrganizationEDWARDS, ZACK
Phone307-883-8696

Population & Service

Population Served2,030
Service Connections1,087

Drinking Water Violations (50)

This water system has 50 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
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, 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
Apr 21, 2023 — Revised Total Coliform Rule TT Yes No — — — Unaddressed — Revised Total Coliform Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Apr 20, 2017 Consumer Confidence Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Apr 20, 2017 Consumer Confidence Rule
Dec 24, 2015 — Groundwater Rule TT Yes No — — — Resolved May 23, 2018 Ground Water Rule
Dec 24, 2015 — Groundwater Rule TT Yes No — — — Resolved May 23, 2018 Ground Water Rule
Dec 24, 2015 — Groundwater Rule TT Yes No — — — Resolved May 23, 2018 Ground Water Rule
Dec 1, 2015 Dec 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2015 Total Coliform Rule
Nov 18, 2015 — E. COLI MR No Yes — — — Resolved Aug 16, 2016 Ground Water Rule
Nov 18, 2015 — E. COLI MR No Yes — — — Resolved Aug 16, 2016 Ground Water Rule
Nov 1, 2015 Nov 30, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 2015 Total Coliform Rule
Sep 25, 2015 — Groundwater Rule Other No No — — — Unaddressed — Ground Water Rule
Jun 1, 2013 Jun 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2013 Total Coliform Rule
Feb 1, 2010 Feb 28, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 28, 2010 Total Coliform Rule
Jan 1, 2008 Dec 31, 2010 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 LASSO MR No Yes — — — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2004 Dec 31, 2007 Radium-228 MR No No — — — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2004 Dec 31, 2007 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2004 Dec 31, 2007 Combined Uranium MR No No — 30 ug/L — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2004 Dec 31, 2007 Radium-226 MR No No — — — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2004 Dec 31, 2007 Radium-226 MR No No — — — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Jan 1, 2004 Dec 31, 2007 Radium-228 MR No No — — — Resolved Dec 31, 2007 Radionuclides and Revised Rad Rule
Sep 1, 2003 Sep 30, 2003 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2003 Total Coliform 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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