Public water system · SD4602068

Active

South Shore

At a glance

South Shore (PWSID SD4602068) is an active community water system in Codington County, South Dakota. It reports serving 189 people through 66 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, 5 are health-based, and the most recent began in February 2019.

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

Population served

189

Service connections

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDSD4602068

System typeCommunity water system

Activity statusActive

Population served189

Service connections66

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencySD state drinking water program

City servedSouth Shore

StateSouth Dakota

ZIP57263

CountyCodington County

How does South Shore compare with other water systems in Codington County?

By EPA's size categories, South Shore is a very small system (500 people or fewer). Codington County has 6 active public water systems, and South Shore is the 5th-largest of them by population served. Its population served is well below the county average of 4,118 people per system, and accounts for 0.8% of the 24,705 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 South Shore 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 South Shore?

EPA lists South Shore 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 Codington County (83%) are also owned by a local government.

Does South Shore have drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in February 2019. The violations listed here began between April 2008 and February 2019. By type: 6 monitoring and reporting, 5 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Stage 1 Disinfectants and Disinfection Byproducts 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
2019-02-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2015-02-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2014-02-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2013-11-15	Required treatment not metFailure To Address Deficiency · code 45	Groundwater Rulecode 0700	Yes	Resolved
2013-04-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2011-09-14	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2010-08-30	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2009-02-01	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2008-11-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2008-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2008-04-01	Monitoring and reportingMonitoring, Regular · code 03	Ethylene dibromide (EDB)code 2946	No	Resolved
2008-04-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dibromo-3-chloropropane (DBCP)code 2931	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.

South Shore: frequently asked questions

Who runs South Shore?

South Shore (PWSID SD4602068) is a community water system owned by a local government. It is regulated by the SD state drinking water program.

How many people does South Shore serve?

South Shore reports serving 189 people through 66 service connections in Codington County, South Dakota.

Where does South Shore 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 South Shore have any drinking water violations?

Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in February 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 South Shore'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, 5 are health-based, and the most recent began in February 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 South Shore's water quality report?

As a community water system, South Shore 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 Codington County

Water system	County	Population served	Type	Source
Watertown Municipal Utilities	Codington	23,230	Community	Groundwater
Clark Rural Water-Kampeska	Codington + 1 more	602	Community	Groundwater
Florence	Codington	337	Community	Purchased groundwater
Henry	Codington	256	Community	Purchased groundwater
Wallace	Codington	91	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, “South Shore, PWSID SD4602068, South Dakota”, https://aquacensus.com/water-systems/south-dakota/south-shore-sd4602068 (data as of October 1, 2026).