Public Water Partners

LAKE PRESTON, SD · Kingsbury County

LAKE PRESTON Water System

Consumer Confidence Report status

LAKE PRESTON 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 LAKE PRESTON.

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)
SD4600398
System type
Community Water System
Population served
589
Service connections
332
Ownership
local government
Water source
groundwater (wells)

LAKE PRESTON is one of 124 community water systems in South Dakota in the 501 to 3,300 people size category, serving 589 people from groundwater.

As of August 1, 2026, its federal record holds 2 entries in 1976, all of which EPA lists as closed. Nothing has been added since 1976.

All 2 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 Radionuclides and Revised Rad Rule.

Violation history

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    July 1, 1976 – June 30, 1980

    Archived

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    July 1, 1976 – June 30, 1980

    Archived

Archived 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 LAKE PRESTON required to publish a Consumer Confidence Report?

Yes. LAKE PRESTON 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 LAKE PRESTON’s next Consumer Confidence Report due?

LAKE PRESTON’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does LAKE PRESTON have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for LAKE PRESTON.

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

LAKE PRESTON

6058474140

LAKE PRESTON, SD 57249