Public water system · IL0410030
ActiveWest Prairie Water Company
At a glance
West Prairie Water Company (PWSID IL0410030) is an active community water system in Douglas County, Illinois. It reports serving 4,800 people through 1,213 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,800
Service connections
1,213
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does West Prairie Water Company compare with other water systems in Douglas County?
By EPA's size categories, West Prairie Water Company is a medium system (3,301 to 10,000 people). Douglas County has 13 active public water systems, and West Prairie Water Company is the 2nd-largest of them by population served. Its population served is about 3.4 times the county average of 1,421 people per system, and accounts for 26% of the 18,473 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active community water system reports serving 6,703 people, so West Prairie Water Company is about 28% 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. Illinois has 1,773 active community water systems, 46% of the state's 3,872 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 348 Illinois systems (9%) list purchased groundwater as their primary source.
Who owns and regulates West Prairie Water Company?
EPA lists West Prairie Water Company as owned by a local government. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 13 active systems in Douglas County (69%) are also owned by a local government.
Does West Prairie Water Company have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2024. The violations listed here began between July 2016 and July 2024. By type: 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2017-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 6 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.
West Prairie Water Company: frequently asked questions
Who runs West Prairie Water Company?
West Prairie Water Company (PWSID IL0410030) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does West Prairie Water Company serve?
West Prairie Water Company reports serving 4,800 people through 1,213 service connections in Douglas County, Illinois.
Where does West Prairie Water Company 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 West Prairie Water Company have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2024. 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 West Prairie Water Company'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 records list 6 violations for this system; none is health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find West Prairie Water Company's water quality report?
As a community water system, West Prairie Water Company 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 Douglas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tuscola | Douglas | 4,875 | Community | Purchased groundwater |
| Arcola | Douglas | 2,927 | Community | Purchased groundwater |
| Il American-Villa Grove | Douglas | 2,467 | Community | Groundwater |
| Atwood | Douglas | 1,155 | Community | Groundwater |
| Newman | Douglas | 836 | Community | Groundwater |
| Camargo | Douglas | 750 | 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, “West Prairie Water Company, PWSID IL0410030, Illinois”, https://aquacensus.com/water-systems/illinois/west-prairie-water-company-il0410030 (data as of October 1, 2026).