South Dakota Water Systems

South Dakota public water system directory

This directory lists the public water system profiles currently available for South Dakota. It is not a complete statewide inventory, and it is not an address-level service lookup.

Compare Systems

3 available South Dakota system records

Compare the PWSID, linked community, source-water context, and report year currently available for each South Dakota record.

All systems are shown.

PWSIDSystemCitiesCountiesSource waterViolation records shownLatest CCR
SD4600294SIOUX FALLSSioux FallsNot verifiedSurface-water sources; the report also states that 62% is purchased from Lewis and Clark Regional Water SystemNo violation records shown in available records2025
SD4600406RAPID CITYRapid CityNot verifiedGroundwater from local wells that the report describes as under the influence of surface waterNo violation records shown in available records2025
SD4600311SPEARFISHSpearfishNot verifiedGroundwater produced from local wellsNo violation records shown in available records2025
PWSIDSD4600294
SystemSIOUX FALLS
CitiesSioux Falls
CountiesNot verified
Source waterSurface-water sources; the report also states that 62% is purchased from Lewis and Clark Regional Water System
Violation records shownNo violation records shown in available records
Latest CCR2025
PWSIDSD4600406
SystemRAPID CITY
CitiesRapid City
CountiesNot verified
Source waterGroundwater from local wells that the report describes as under the influence of surface water
Violation records shownNo violation records shown in available records
Latest CCR2025
PWSIDSD4600311
SystemSPEARFISH
CitiesSpearfish
CountiesNot verified
Source waterGroundwater produced from local wells
Violation records shownNo violation records shown in available records
Latest CCR2025

Profiles

Open a South Dakota public water system profile

Each of these 3 profiles keeps its source links, annual-report details, limitations, and summarized CCR entries together.

Last updated: EPA data

SIOUX FALLS

PWSID SD4600294

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System-level profile for Sioux Falls. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.

System type
Community water system
Communities
Sioux Falls
Counties
County not listed
Latest CCR
2025
Last updated: EPA data

RAPID CITY

PWSID SD4600406

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System-level profile for Rapid City. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.

System type
Communities
Rapid City
Counties
County not listed
Latest CCR
2025
Last updated: EPA data

SPEARFISH

PWSID SD4600311

View system profile

System-level profile for Spearfish. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.

System type
Communities
Spearfish
Counties
County not listed
Latest CCR
2025