Public Water Partners

HYATTVILLE, WY · Big Horn County

HYATTVILLE S&I DISTRICT Water System

Consumer Confidence Report status

HYATTVILLE S&I DISTRICT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 1 item for HYATTVILLE S&I DISTRICT that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Wyoming’s official records. Always confirm current status with Wyoming before making decisions based on this information.

System facts

System ID (PWSID)
WY5600209
System type
Community Water System
Population served
60
Service connections
71
Ownership
local government
Water source
groundwater (wells)

HYATTVILLE S&I DISTRICT is one of 486 community water systems in Wyoming in the 500 or fewer people size category, serving 60 people from groundwater.

As of August 1, 2026, its federal record holds 19 entries between 2011 and 2019, of which 1 remains open; none are health-based.

Of the 19, 17 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and the Consumer Confidence Rule.

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2019

    Unaddressed

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2014 – June 25, 2015

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2011 – December 31, 2013

    Archived

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2011 – December 31, 2013

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2011 – December 31, 2013

    Archived

  • Monitoring, Regular

    —

    Picloram

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2011 – December 31, 2013

    Archived

  • Monitoring, Regular

    —

    LASSO

    January 1, 2011 – December 31, 2013

    Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is HYATTVILLE S&I DISTRICT required to publish a Consumer Confidence Report?

Yes. HYATTVILLE S&I DISTRICT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is HYATTVILLE S&I DISTRICT’s next Consumer Confidence Report due?

HYATTVILLE S&I DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does HYATTVILLE S&I DISTRICT have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for HYATTVILLE S&I DISTRICT that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

JEFFERS, LESLIE

650-619-8959

HYATTVILLE, WY 82428