Public water system · IA8486701
ActiveLewis and Clark Regional Water System
At a glance
Lewis and Clark Regional Water System (PWSID IA8486701) is an active community water system in Sioux County, Iowa. It reports serving 25 people through 4 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
4
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Lewis and Clark Regional Water System compare with other water systems in Sioux County?
By EPA's size categories, Lewis and Clark Regional Water System is a very small system (500 people or fewer). Sioux County has 16 active public water systems. Its population served is well below the county average of 2,416 people per system, and accounts for less than 0.1% 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 Lewis and Clark Regional Water System 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 156 Iowa systems (8.5%) list purchased groundwater as their primary source.
Who owns and regulates Lewis and Clark Regional Water System?
EPA lists Lewis and Clark Regional Water System as owned by a local government. 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. 13 of the 16 active systems in Sioux County (81%) are also owned by a local government.
Does Lewis and Clark Regional Water System have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Lewis and Clark Regional Water System. For the latest compliance status, check EPA ECHO for current compliance history.
Lewis and Clark Regional Water System: frequently asked questions
Who runs Lewis and Clark Regional Water System?
Lewis and Clark Regional Water System (PWSID IA8486701) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Lewis and Clark Regional Water System serve?
Lewis and Clark Regional Water System reports serving 25 people through 4 service connections in Sioux County, Iowa.
Where does Lewis and Clark Regional Water System 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 Lewis and Clark Regional Water System have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Lewis and Clark Regional Water System'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. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Lewis and Clark Regional Water System's water quality report?
As a community water system, Lewis and Clark Regional Water System 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 |
| Southern Sioux County Rural Water | Sioux | 5,420 | 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 |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Lewis and Clark Regional Water System, PWSID IA8486701, Iowa”, https://aquacensus.com/water-systems/iowa/lewis-and-clark-regional-water-system-ia8486701 (data as of October 1, 2026).