Public water system · SD4600865
ActiveBy Water District
At a glance
By Water District (PWSID SD4600865) is an active community water system serving Bon Homme, Yankton, Hutchinson, Turner, Douglas and 2 more counties, South Dakota. It reports serving 13,320 people through 5,328 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in March 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,320
Service connections
5,328
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does By Water District compare with other water systems in South Dakota?
By EPA's size categories, By Water District is a large system (10,001 to 100,000 people). 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 By Water District is about twice 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 24 South Dakota systems (3.4%) list surface water as their primary source.
Who owns and regulates By Water District?
EPA lists By Water District 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 By Water District have drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in March 2019. The violations listed here began between April 1993 and March 2019. By type: 3 required treatment not met, 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (3 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2019-03-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2019-03-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2014-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2007-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2007-03-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 1993-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 7 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.
By Water District: frequently asked questions
Who runs By Water District?
By Water District (PWSID SD4600865) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does By Water District serve?
By Water District reports serving 13,320 people through 5,328 service connections in Bon Homme, Yankton, Hutchinson, Turner, Douglas and 2 more counties, South Dakota.
Where does By Water District get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does By Water District have any drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in March 2019. 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 By Water District'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. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in March 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find By Water District's water quality report?
As a community water system, By Water District 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 Bon Homme County(the first county EPA lists for this system)
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Springfield | Bon Homme | 2,108 | Community | Surface water |
| Tyndall | Bon Homme | 1,012 | Community | Purchased surface water |
| Scotland | Bon Homme | 785 | Community | Purchased surface water |
| Avon | Bon Homme | 590 | Community | Purchased surface water |
| Tabor | Bon Homme | 423 | Community | Purchased surface water |
| Maxwell Colony | Bon Homme | 150 | Community | Groundwater |
Related pages
- All water systems in Bon Homme County· 7 active
- All water systems in Yankton County· 9 active
- All water systems in Hutchinson County· 4 active
- All water systems in Turner County· 6 active
- All South Dakota public water systems· 699 active
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
- What a drinking water violation notice means
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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, “By Water District, PWSID SD4600865, South Dakota”, https://aquacensus.com/water-systems/south-dakota/by-water-district-sd4600865 (data as of October 1, 2026).