Public Water Partners

HERMOSA, SD · Custer County

HERMOSA-NEW SYSTEM Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 1, 2014. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Custer County, SD.

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)
SD4602268
System type
Community Water System
Population served
400
Service connections
194
Ownership
local government
Water source
groundwater (wells)

HERMOSA-NEW SYSTEM is one of 583 community water systems in South Dakota in the 500 or fewer people size category, formerly serving 400 people from groundwater.

EPA's federal records list this system as inactive in 2014; the record below is historical.

As of August 1, 2026, its federal record holds 1 entry in 2013, all of which EPA lists as closed. Nothing has been added since 2013.

None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Public Notice Rule and Revised PN Rule.

Violation history

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    April 9, 2013 – June 24, 2013

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Last known contact on file (system is inactive)

HERMOSA-NEW SYSTEM

6052554291

HERMOSA, SD 57744