Public water system · SD4600385
ActiveArlington
At a glance
Arlington (PWSID SD4600385) is an active community water system in Kingsbury County, South Dakota. It reports serving 915 people through 513 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; none is health-based, and the most recent began in July 2000.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
915
Service connections
513
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Arlington compare with other water systems in Kingsbury County?
By EPA's size categories, Arlington is a small system (501 to 3,300 people). Kingsbury County has 7 active public water systems, and Arlington is the 3rd-largest of them by population served. Its population served is about 11% above the county average of 827 people per system, and accounts for 16% of the 5,786 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 Arlington 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 groundwater means the system buys groundwater from another public water system rather than drawing its own. 100 South Dakota systems (14%) list purchased groundwater as their primary source.
Who owns and regulates Arlington?
EPA lists Arlington 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 7 active systems in Kingsbury County (71%) are also owned by a local government.
Does Arlington have drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in July 2000. The violations listed here began between July 1976 and July 2000. By type: 7 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 5 as resolved and 2 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 |
|---|---|---|---|---|
| 2000-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2000-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1988-12-20 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 1988-12-20 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 1976-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1976-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Archived |
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.
Arlington: frequently asked questions
Who runs Arlington?
Arlington (PWSID SD4600385) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does Arlington serve?
Arlington reports serving 915 people through 513 service connections in Kingsbury County, South Dakota.
Where does Arlington get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Arlington have any drinking water violations?
EPA's records list 7 violations for this system; none is health-based, and the most recent began in July 2000. 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 Arlington'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; none is health-based, and the most recent began in July 2000. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Arlington's water quality report?
As a community water system, Arlington 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 Kingsbury County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kingbrook Ii Rural Water System | Kingsbury | 2,715 | Community | Groundwater |
| De Smet | Kingsbury | 1,056 | Community | Groundwater |
| Lake Preston | Kingsbury | 589 | Community | Purchased groundwater |
| Iroquois | Kingsbury + 1 more | 292 | Community | Purchased groundwater |
| Spring Lake Colony | Kingsbury | 114 | Community | Groundwater |
| Badger | Kingsbury | 105 | 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, “Arlington, PWSID SD4600385, South Dakota”, https://aquacensus.com/water-systems/south-dakota/arlington-sd4600385 (data as of October 1, 2026).