Public water system · SD4600187
ActiveLake Norden
At a glance
Lake Norden (PWSID SD4600187) is an active community water system in Hamlin County, South Dakota. It reports serving 554 people through 280 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2004.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
554
Service connections
280
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lake Norden compare with other water systems in Hamlin County?
By EPA's size categories, Lake Norden is a small system (501 to 3,300 people). Hamlin County has 6 active public water systems, and Lake Norden is the 4th-largest of them by population served. Its population served is about half of the county average of 1,191 people per system, and accounts for 7.8% of the 7,145 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 Lake Norden 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 Lake Norden?
EPA lists Lake Norden 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 6 active systems in Hamlin County (83%) are also owned by a local government.
Does Lake Norden have drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2004. The violations listed here began between June 1991 and January 2004. By type: 5 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2004-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 1996-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1995-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 1992-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1991-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 6 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.
Lake Norden: frequently asked questions
Who runs Lake Norden?
Lake Norden (PWSID SD4600187) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does Lake Norden serve?
Lake Norden reports serving 554 people through 280 service connections in Hamlin County, South Dakota.
Where does Lake Norden 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 Lake Norden have any drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in January 2004. 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 Lake Norden'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 6 violations for this system; 1 is health-based, and the most recent began in January 2004. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Lake Norden's water quality report?
As a community water system, Lake Norden 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 Hamlin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sioux Rural Water System | Hamlin + 3 more | 4,280 | Community | Groundwater |
| Estelline | Hamlin | 749 | Community | Purchased groundwater |
| Castlewood | Hamlin | 698 | Community | Purchased groundwater |
| Bryant | Hamlin | 471 | Community | Purchased groundwater |
| Hayti | Hamlin | 393 | 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, “Lake Norden, PWSID SD4600187, South Dakota”, https://aquacensus.com/water-systems/south-dakota/lake-norden-sd4600187 (data as of October 1, 2026).