Public Water Partners

HERMOSA, SD · Custer County

HERMOSA WATER USERS ASSOCIATION Water System

Consumer Confidence Report status

HERMOSA WATER USERS ASSOCIATION 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 no open violations for HERMOSA WATER USERS ASSOCIATION.

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 South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

System facts

System ID (PWSID)
SD4602180
System type
Community Water System
Population served
108
Service connections
49
Ownership
local government
Water source
groundwater (wells)

HERMOSA WATER USERS ASSOCIATION is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 108 people from groundwater.

As of August 1, 2026, its federal record holds 7 entries between 1999 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.

Of the 7, 4 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 the Total Coliform Rules, volatile organic chemicals, and the Lead and Copper Rule.

Violation history

  • Initial Tap Sampling for Pb and Cu

    —

    Lead and Copper Rule

    July 1, 2021 – December 23, 2021

    Resolved

  • Treatment Technique, Level 1 Assessment (RTCR)

    Health-based

    Revised Total Coliform Rule

    October 5, 2019 – October 24, 2019

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    July 1, 2019 – July 31, 2019

    Resolved

  • Notification, Public

    —

    Coliform (TCR)

    January 17, 2000 – February 16, 2000

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    October 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    October 1, 1999 – December 31, 1999

    Resolved

  • Notification, Public

    —

    Coliform (TCR)

    August 14, 1999 – September 13, 1999

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is HERMOSA WATER USERS ASSOCIATION required to publish a Consumer Confidence Report?

Yes. HERMOSA WATER USERS ASSOCIATION 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 HERMOSA WATER USERS ASSOCIATION’s next Consumer Confidence Report due?

HERMOSA WATER USERS ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does HERMOSA WATER USERS ASSOCIATION have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for HERMOSA WATER USERS ASSOCIATION.

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

HERMOSA WATER USERS ASSOCIATION

Phone not on record

HERMOSA, SD 57744