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HANNA, TOWN OF

Wyoming — Community Water System — PWSID: WY5600025

System Information

PWSIDWY5600025
System NameHANNA, TOWN OF
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedNov 17, 2025

Location & Contact

StateWyoming
CityHANNA
ZIP Code82327
AddressP.O. Box 99
OrganizationSUTTER, DAVID
Phone307-325-9424

Population & Service

Population Served841
Service Connections455

Drinking Water Violations (13)

This water system has 13 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
Sep 1, 2016 Aug 31, 2017 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2016 Aug 31, 2017 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2015 Dec 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2015 Total Coliform Rule
Nov 1, 2015 Nov 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2015 Total Coliform Rule
Oct 1, 2014 Dec 31, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 Sep 30, 2008 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2008 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2004 Apr 30, 2004 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2004 Surface Water Treatment Rule
Aug 1, 2003 Aug 31, 2003 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2003 Surface Water Treatment Rule
Aug 1, 2003 Aug 31, 2003 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2003 Surface Water Treatment Rule
Jul 1, 1994 Sep 30, 1994 Nitrate MR No Yes — 10 mg/L — Archived Sep 30, 1994 Nitrate Rule
Jul 1, 1976 Jun 30, 1980 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived Jun 30, 1980 Radionuclides and Revised Rad Rule
Jul 1, 1976 Jun 30, 1980 Combined Radium (-226 and -228) MR No No — 5 pCi/L — Archived Jun 30, 1980 Radionuclides and Revised Rad 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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