Public water system · IA8400733
ActiveSouthern Sioux County Rural Water
At a glance
Southern Sioux County Rural Water (PWSID IA8400733) is an active community water system in Sioux County, Iowa. It reports serving 5,420 people through 2,168 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,420
Service connections
2,168
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Southern Sioux County Rural Water compare with other water systems in Sioux County?
By EPA's size categories, Southern Sioux County Rural Water is a medium system (3,301 to 10,000 people). Sioux County has 16 active public water systems, and Southern Sioux County Rural Water is the 3rd-largest of them by population served. Its population served is about 124% above the county average of 2,416 people per system, and accounts for 14% of the 38,650 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Southern Sioux County Rural Water is about 19% 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Southern Sioux County Rural Water?
EPA lists Southern Sioux County Rural Water as privately owned. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 3 of the 16 active systems in Sioux County (19%) are also privately owned.
Does Southern Sioux County Rural Water have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2013. The violations listed here began between January 1981 and October 2013. By type: 8 monitoring and reporting and 4 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 7 as archived and 5 as resolved. 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. 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 |
|---|---|---|---|---|
| 2013-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Archived |
| 1981-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Southern Sioux County Rural Water: frequently asked questions
Who runs Southern Sioux County Rural Water?
Southern Sioux County Rural Water (PWSID IA8400733) is a community water system privately owned. It is regulated by the IA state drinking water program.
How many people does Southern Sioux County Rural Water serve?
Southern Sioux County Rural Water reports serving 5,420 people through 2,168 service connections in Sioux County, Iowa.
Where does Southern Sioux County Rural Water 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 Southern Sioux County Rural Water have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2013. 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 Southern Sioux County Rural Water'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, 4 are health-based, and the most recent began in October 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Southern Sioux County Rural Water's water quality report?
As a community water system, Southern Sioux County Rural Water 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 Sioux County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sioux Center Municipal Water Department | Sioux | 8,231 | Community | Groundwater |
| Orange City Municipal Water Department | Sioux | 6,267 | Community | Groundwater |
| Rock Valley Water Supply | Sioux | 4,059 | Community | Groundwater |
| Rural Water System #1 | Sioux | 3,428 | Community | Groundwater under influence of surface water |
| Hawarden Water Supply | Sioux | 2,700 | Community | Groundwater |
| Hull Water Supply | Sioux | 2,384 | 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, “Southern Sioux County Rural Water, PWSID IA8400733, Iowa”, https://aquacensus.com/water-systems/iowa/southern-sioux-county-rural-water-ia8400733 (data as of October 1, 2026).