Public water system · IL1655110
ActiveProspect Water District
At a glance
Prospect Water District (PWSID IL1655110) is an active community water system in Saline County, Illinois. It reports serving 1,140 people through 456 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1992.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,140
Service connections
456
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Prospect Water District compare with other water systems in Saline County?
By EPA's size categories, Prospect Water District is a small system (501 to 3,300 people). Saline County has 12 active public water systems. Its population served is about half of the county average of 2,128 people per system, and accounts for 4.5% of the 25,532 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 Prospect Water District 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. Illinois has 1,773 active community water systems, 46% of the state's 3,872 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 619 Illinois systems (16%) list purchased surface water as their primary source.
Who owns and regulates Prospect Water District?
EPA lists Prospect Water District 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. 11 of the 12 active systems in Saline County (92%) are also owned by a local government.
Does Prospect Water District have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1992. The violations listed here began between April 1982 and April 1992. By type: 2 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR) and Gross alpha (excluding radon and uranium). EPA lists 2 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1992-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1982-04-20 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 2 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.
Prospect Water District: frequently asked questions
Who runs Prospect Water District?
Prospect Water District (PWSID IL1655110) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Prospect Water District serve?
Prospect Water District reports serving 1,140 people through 456 service connections in Saline County, Illinois.
Where does Prospect Water District get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Prospect Water District have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1992. 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 Prospect Water District'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 2 violations for this system; none is health-based, and the most recent began in April 1992. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Prospect Water District's water quality report?
As a community water system, Prospect Water District 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 Saline County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Harrisburg | Saline | 8,524 | Community | Purchased groundwater |
| Eldorado | Saline | 4,715 | Community | Purchased groundwater |
| Saline Valley Conservancy District | Saline | 3,921 | Community | Groundwater |
| Carrier Mills | Saline | 2,085 | Community | Purchased groundwater |
| Mitchellsville PWD | Saline | 1,970 | Community | Purchased groundwater |
| Liberty-Ledford PWD | Saline | 1,255 | 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, “Prospect Water District, PWSID IL1655110, Illinois”, https://aquacensus.com/water-systems/illinois/prospect-water-district-il1655110 (data as of October 1, 2026).