Public water system · SD4600235
ActiveParker
At a glance
Parker (PWSID SD4600235) is an active community water system in Turner County, South Dakota. It reports serving 1,025 people through 505 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in February 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,025
Service connections
505
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Parker compare with other water systems in Turner County?
By EPA's size categories, Parker is a small system (501 to 3,300 people). Turner County has 6 active public water systems, and Parker is the largest of them by population served. Its population served is about 43% above the county average of 716 people per system, and accounts for 24% of the 4,296 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 Parker 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 groundwater means the system buys groundwater from another public water system rather than drawing its own. 100 South Dakota systems (14%) list purchased groundwater as their primary source.
Who owns and regulates Parker?
EPA lists Parker 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. 6 of the 6 active systems in Turner County (100%) are also owned by a local government.
Does Parker have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in February 2010. The violations listed here began between January 2008 and February 2010. By type: 11 monitoring and reporting and 1 required treatment not met. The contaminants or rules involved are Stage 1 Disinfectants and Disinfection Byproducts Rule, Methoxychlor, Benzo(a)pyrene and Alachlor (Lasso). 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 |
|---|---|---|---|---|
| 2010-02-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Methoxychlorcode 2015 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzo(a)pyrenecode 2306 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Alachlor (Lasso)code 2051 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlordanecode 2959 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Simazinecode 2037 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlor epoxidecode 2067 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Oxamylcode 2036 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endrincode 2005 | 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.
Parker: frequently asked questions
Who runs Parker?
Parker (PWSID SD4600235) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does Parker serve?
Parker reports serving 1,025 people through 505 service connections in Turner County, South Dakota.
Where does Parker get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Parker have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in February 2010. 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 Parker'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, one is health-based, and the most recent began in February 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Parker's water quality report?
As a community water system, Parker 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 Turner County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Centerville | Turner | 918 | Community | Purchased groundwater |
| Marion | Turner | 894 | Community | Purchased groundwater |
| Viborg | Turner | 814 | Community | Purchased groundwater |
| Hurley | Turner | 379 | Community | Purchased groundwater |
| Chancellor | Turner | 266 | 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, “Parker, PWSID SD4600235, South Dakota”, https://aquacensus.com/water-systems/south-dakota/parker-sd4600235 (data as of October 1, 2026).