Public water system · SD4600286
ActiveSaint Lawrence
At a glance
Saint Lawrence (PWSID SD4600286) is an active community water system in Hand County, South Dakota. It reports serving 198 people through 107 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, none is health-based, and the most recent began in September 1997.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
198
Service connections
107
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Saint Lawrence compare with other water systems in Hand County?
By EPA's size categories, Saint Lawrence is a very small system (500 people or fewer). Hand County has 2 active public water systems, and Saint Lawrence is the 2nd-largest of them by population served. Its population served is well below the county average of 774 people per system, and accounts for 13% of the 1,547 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 Saint Lawrence 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 Saint Lawrence?
EPA lists Saint Lawrence 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. 2 of the 2 active systems in Hand County (100%) are also owned by a local government.
Does Saint Lawrence have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 1997. The violations listed here began between December 1996 and September 1997. By type: 7 public notice, recordkeeping or other and 5 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (12 of them). EPA lists 12 as archived. 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 |
|---|---|---|---|---|
| 1997-09-15 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-08-11 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-07-15 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-06-21 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-04-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-02-12 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1997-01-20 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-12-14 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
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.
Saint Lawrence: frequently asked questions
Who runs Saint Lawrence?
Saint Lawrence (PWSID SD4600286) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does Saint Lawrence serve?
Saint Lawrence reports serving 198 people through 107 service connections in Hand County, South Dakota.
Where does Saint Lawrence 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 Saint Lawrence have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in September 1997. 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 Saint Lawrence'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, none is health-based, and the most recent began in September 1997. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Saint Lawrence's water quality report?
As a community water system, Saint Lawrence 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 Hand County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Miller | Hand | 1,349 | Community | Purchased surface water |
Related pages
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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, “Saint Lawrence, PWSID SD4600286, South Dakota”, https://aquacensus.com/water-systems/south-dakota/saint-lawrence-sd4600286 (data as of October 1, 2026).