Public water system · IL1170830

Active

Royal Lakes

At a glance

Royal Lakes (PWSID IL1170830) is an active community water system in Macoupin County, Illinois. It reports serving 235 people through 117 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

235

Service connections

117

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDIL1170830

System typeCommunity water system

Activity statusActive

Population served235

Service connections117

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyIL state drinking water program

City servedRoyal Lakes

StateIllinois

ZIP—

CountyMacoupin County

How does Royal Lakes compare with other water systems in Macoupin County?

By EPA's size categories, Royal Lakes is a very small system (500 people or fewer). Macoupin County has 32 active public water systems. Its population served is well below the county average of 1,411 people per system, and accounts for 0.5% of the 45,161 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 Royal Lakes 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 Royal Lakes?

EPA lists Royal Lakes 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. 28 of the 32 active systems in Macoupin County (88%) are also owned by a local government.

Does Royal Lakes have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. The violations listed here began between July 2004 and October 2024. By type: 7 monitoring and reporting and 5 public notice, recordkeeping or other. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 12 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
2024-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2013-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2013-06-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2013-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2011-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2007-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2007-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2005-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2004-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2004-09-11	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2004-09-11	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2004-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved

The 12 most recent 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.

Royal Lakes: frequently asked questions

Who runs Royal Lakes?

Royal Lakes (PWSID IL1170830) is a community water system owned by a local government. It is regulated by the IL state drinking water program.

How many people does Royal Lakes serve?

Royal Lakes reports serving 235 people through 117 service connections in Macoupin County, Illinois.

Where does Royal Lakes 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 Royal Lakes have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 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 Royal Lakes' 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 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 Royal Lakes' water quality report?

As a community water system, Royal Lakes 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 Macoupin County

Water system	County	Population served	Type	Source
Carlinville	Macoupin	6,598	Community	Surface water
Staunton	Macoupin	5,756	Community	Surface water
Brighton	Macoupin	5,041	Community	Purchased surface water
Gillespie	Macoupin	3,737	Community	Surface water
Virden	Macoupin	3,274	Community	Purchased surface water
Mount Olive	Macoupin	2,193	Community	Purchased surface water

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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, “Royal Lakes, PWSID IL1170830, Illinois”, https://aquacensus.com/water-systems/illinois/royal-lakes-il1170830 (data as of October 1, 2026).