Public water system · SD4600361

Active

Wessington

At a glance

Wessington (PWSID SD4600361) is an active community water system serving Beadle and Hand counties, South Dakota. It reports serving 170 people through 127 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2021.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

170

Service connections

127

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDSD4600361

System typeCommunity water system

Activity statusActive

Population served170

Service connections127

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencySD state drinking water program

City servedWessington

StateSouth Dakota

ZIP57381

Counties servedBeadle, Hand

How does Wessington compare with other water systems in South Dakota?

By EPA's size categories, Wessington is a very small system (500 people or fewer). Across South Dakota, the 699 active systems average 1,387 people each. Nationally, the average active community water system reports serving 6,703 people, so Wessington is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. South Dakota has 510 active community water systems, 73% of the state's 699 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 142 South Dakota systems (20%) list purchased surface water as their primary source.

Who owns and regulates Wessington?

EPA lists Wessington as owned by a local government. The SD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.

Does Wessington have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2021. The violations listed here began between January 1994 and October 2021. By type: 9 monitoring and reporting, 2 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 11 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

Began	Violation	Contaminant or rule	Health-based	Status
2021-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2021-03-17	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2015-10-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2015-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2015-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2002-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2000-03-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
1999-03-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
1997-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
1995-01-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
1994-07-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
1994-01-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Wessington: frequently asked questions

Who runs Wessington?

Wessington (PWSID SD4600361) is a community water system owned by a local government. It is regulated by the SD state drinking water program.

How many people does Wessington serve?

Wessington reports serving 170 people through 127 service connections in Beadle and Hand counties, South Dakota.

Where does Wessington get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Wessington have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2021. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Wessington's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.

Where can I find Wessington's water quality report?

As a community water system, Wessington must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Beadle County(the first county EPA lists for this system)

Water system	County	Population served	Type	Source
Huron	Beadle	14,263	Community	Purchased surface water
Wolsey	Beadle	459	Community	Purchased surface water
Hitchcock	Beadle	112	Community	Purchased surface water
Huron Colony	Beadle	95	Community	Groundwater
Pearl Creek Colony	Beadle	94	Community	Groundwater
Riverside Colony	Beadle	80	Community	Groundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Wessington, PWSID SD4600361, South Dakota”, https://aquacensus.com/water-systems/south-dakota/wessington-sd4600361 (data as of October 1, 2026).