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Public water system · SD4601000

Active

East Ridge Acres

At a glance

East Ridge Acres (PWSID SD4601000) is an active community water system in Meade County, South Dakota. It reports serving 118 people through 47 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in February 2015.

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

Population served

118

Service connections

47

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDSD4601000
System typeCommunity water system
Activity statusActive
Population served118
Service connections47
Primary water sourceGroundwater
Owner typePrivate
Primacy agencySD state drinking water program
City servedRapid City
StateSouth Dakota
ZIP57709
CountyMeade County

How does East Ridge Acres compare with other water systems in Meade County?

By EPA's size categories, East Ridge Acres is a very small system (500 people or fewer). Meade County has 56 active public water systems. Its population served is well below the county average of 410 people per system, and accounts for 0.5% of the 22,953 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 East Ridge Acres 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 East Ridge Acres?

EPA lists East Ridge Acres as privately owned. 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. 38 of the 56 active systems in Meade County (68%) are also privately owned.

Does East Ridge Acres have drinking water violations?

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in February 2015. The violations listed here began between August 1988 and February 2015. By type: 8 monitoring and reporting, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminants or rules involved are Stage 1 Disinfectants and Disinfection Byproducts Rule, Cadmium, Arsenic and Barium. EPA lists 10 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.

BeganViolationContaminant or ruleHealth-basedStatus
2015-02-01Required treatment not metTreatment Technique No Certif. Operator · code 12Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400YesResolved
1998-04-13Public notice, recordkeeping or otherSanitary Survey (TCR) · code 28Not reportedNoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Cadmiumcode 1015NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Arseniccode 1005NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Bariumcode 1010NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Chromiumcode 1020NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Fluoridecode 1025NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Seleniumcode 1045NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Mercurycode 1035NoResolved
1988-08-11Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved

All 10 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.

East Ridge Acres: frequently asked questions

Who runs East Ridge Acres?

East Ridge Acres (PWSID SD4601000) is a community water system privately owned. It is regulated by the SD state drinking water program.

How many people does East Ridge Acres serve?

East Ridge Acres reports serving 118 people through 47 service connections in Meade County, South Dakota.

Where does East Ridge Acres 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 East Ridge Acres have any drinking water violations?

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in February 2015. 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 East Ridge Acres' 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 10 violations for this system; 1 is health-based, and the most recent began in February 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.

Where can I find East Ridge Acres' water quality report?

As a community water system, East Ridge Acres 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 Meade County

Water systemCountyPopulation servedTypeSource
SturgisMeade7,020CommunityGroundwater
Black Hawk Water User DistrictMeade4,500CommunityGroundwater
Northdale Sanitary DistrictMeade + 1 more1,075CommunityGroundwater
PiedmontMeade971CommunityPurchased groundwater
Bear Butte Valley WaterMeade882CommunityGroundwater
Fort Meade Va CenterMeade800CommunitySurface water

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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, “East Ridge Acres, PWSID SD4601000, South Dakota”, https://aquacensus.com/water-systems/south-dakota/east-ridge-acres-sd4601000 (data as of October 1, 2026).