Public water system · IL0015300
ActiveMill Creek PWD
At a glance
Mill Creek PWD (PWSID IL0015300) is an active community water system in Adams County, Illinois. It reports serving 5,755 people through 2,302 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,755
Service connections
2,302
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mill Creek PWD compare with other water systems in Adams County?
By EPA's size categories, Mill Creek PWD is a medium system (3,301 to 10,000 people). Adams County has 22 active public water systems, and Mill Creek PWD is the 3rd-largest of them by population served. Its population served is about 87% above the county average of 3,086 people per system, and accounts for 8.5% of the 67,881 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 Mill Creek PWD is about 14% 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Mill Creek PWD?
EPA lists Mill Creek 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. 15 of the 22 active systems in Adams County (68%) are also owned by a local government.
Does Mill Creek PWD have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between June 1977 and July 2025. By type: 4 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, Chlorine, Total coliform bacteria (TCR) and Gross alpha (excluding radon and uranium). EPA lists 2 as archived, 1 as unaddressed and 1 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2025-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2012-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 1995-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | 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 4 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.
Mill Creek PWD: frequently asked questions
Who runs Mill Creek PWD?
Mill Creek PWD (PWSID IL0015300) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Mill Creek PWD serve?
Mill Creek PWD reports serving 5,755 people through 2,302 service connections in Adams County, Illinois.
Where does Mill Creek PWD 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 Mill Creek PWD have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. 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 Mill Creek 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 4 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Mill Creek PWD's water quality report?
As a community water system, Mill Creek 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 Adams County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Quincy | Adams | 42,000 | Community | Surface water |
| Abs Water Coop | Adams | 6,858 | Community | Purchased groundwater |
| Clayton-Camp Point Water Commission | Adams | 2,470 | Community | Groundwater |
| Blessing Hospital | Adams | 2,460 | Non-transient non-community | Purchased surface water |
| Payson | Adams | 1,386 | Community | Groundwater |
| Camp Point | Adams | 1,190 | Community | Purchased 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, “Mill Creek PWD, PWSID IL0015300, Illinois”, https://aquacensus.com/water-systems/illinois/mill-creek-pwd-il0015300 (data as of October 1, 2026).