Public water system · SD4602201

Active

Fall River Wud

At a glance

Fall River Wud (PWSID SD4602201) is an active community water system in Fall River County, South Dakota. It reports serving 1,057 people through 423 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 2024.

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

Population served

1,057

Service connections

423

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDSD4602201

System typeCommunity water system

Activity statusActive

Population served1,057

Service connections423

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencySD state drinking water program

City servedOral

StateSouth Dakota

ZIP57766

CountyFall River County

How does Fall River Wud compare with other water systems in Fall River County?

By EPA's size categories, Fall River Wud is a small system (501 to 3,300 people). Fall River County has 13 active public water systems, and Fall River Wud is the 2nd-largest of them by population served. Its population served is about twice the county average of 492 people per system, and accounts for 17% of the 6,400 people reported by systems filed under the county. 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 Fall River Wud 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 431 South Dakota systems (62%) list groundwater as their primary source.

Who owns and regulates Fall River Wud?

EPA lists Fall River Wud 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. 5 of the 13 active systems in Fall River County (38%) are also owned by a local government.

Does Fall River Wud have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 2024. The violations listed here began between October 2014 and June 2024. By type: 6 monitoring and reporting, 4 monitoring, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 12 as resolved. 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.

Began	Violation	Contaminant or rule	Health-based	Status
2024-06-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2020-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2020-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2019-02-08	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2018-05-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2018-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2018-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2018-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2017-02-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2014-10-01	Monitoring and reportingMonitoring, Regular · code 03	1,2,4-Trichlorobenzenecode 2378	No	Resolved
2014-10-01	Monitoring and reportingMonitoring, Regular · code 03	1,1-Dichloroethylenecode 2977	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.

Fall River Wud: frequently asked questions

Who runs Fall River Wud?

Fall River Wud (PWSID SD4602201) is a community water system owned by a local government. It is regulated by the SD state drinking water program.

How many people does Fall River Wud serve?

Fall River Wud reports serving 1,057 people through 423 service connections in Fall River County, South Dakota.

Where does Fall River Wud get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Fall River Wud have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in June 2024. 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 Fall River Wud'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, one is health-based, and the most recent began in June 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.

Where can I find Fall River Wud's water quality report?

As a community water system, Fall River Wud 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 Fall River County

Water system	County	Population served	Type	Source
Hot Springs	Fall River	3,395	Community	Groundwater
Edgemont	Fall River	725	Community	Groundwater
Hot Springs Va Center	Fall River	445	Community	Groundwater
State Veterans Home	Fall River	205	Non-transient non-community	Groundwater
Paradise Cove, LLC	Fall River	167	Transient non-community	Groundwater
Oelrichs	Fall River	117	Community	Purchased 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, “Fall River Wud, PWSID SD4602201, South Dakota”, https://aquacensus.com/water-systems/south-dakota/fall-river-wud-sd4602201 (data as of October 1, 2026).