Public water system · IL1815550
ActiveShawnee Valley PWD
At a glance
Shawnee Valley PWD (PWSID IL1815550) is an active community water system in Union County, Illinois. It reports serving 738 people through 295 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
738
Service connections
295
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Shawnee Valley PWD compare with other water systems in Union County?
By EPA's size categories, Shawnee Valley PWD is a small system (501 to 3,300 people). Union County has 12 active public water systems, and Shawnee Valley PWD is the 6th-largest of them by population served. Its population served is about 35% below the county average of 1,139 people per system, and accounts for 5.4% of the 13,669 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 Shawnee Valley PWD 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 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 Shawnee Valley PWD?
EPA lists Shawnee Valley PWD 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. 8 of the 12 active systems in Union County (67%) are also owned by a local government.
Does Shawnee Valley PWD have drinking water violations?
EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in January 2026. The violations listed here began between June 1977 and January 2026. By type: 4 monitoring and reporting, 4 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (5 of them). EPA lists 5 as resolved and 4 as archived. 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. 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 |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2017-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2017-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2016-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2016-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2004-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1994-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 9 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.
Shawnee Valley PWD: frequently asked questions
Who runs Shawnee Valley PWD?
Shawnee Valley PWD (PWSID IL1815550) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Shawnee Valley PWD serve?
Shawnee Valley PWD reports serving 738 people through 295 service connections in Union County, Illinois.
Where does Shawnee Valley PWD 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 Shawnee Valley PWD have any drinking water violations?
EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in January 2026. 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 Shawnee Valley PWD'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 9 violations for this system; 4 are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Shawnee Valley PWD's water quality report?
As a community water system, Shawnee Valley PWD 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 Union County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Anna | Union | 4,910 | Community | Purchased groundwater |
| Lick Creek PWD | Union | 2,365 | Community | Purchased surface water |
| Jonesboro | Union | 1,799 | Community | Purchased groundwater |
| Cobden | Union | 1,267 | Community | Groundwater |
| Alto Pass Water District | Union | 1,015 | Community | Purchased groundwater |
| Dongola | Union | 736 | 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, “Shawnee Valley PWD, PWSID IL1815550, Illinois”, https://aquacensus.com/water-systems/illinois/shawnee-valley-pwd-il1815550 (data as of October 1, 2026).