Public water system · IN5245017
ActiveAqua Indiana Water Company
At a glance
Aqua Indiana Water Company (PWSID IN5245017) is an active community water system in Lake County, Indiana. It reports serving 1,350 people through 525 service connections. Its primary water source is purchased groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,350
Service connections
525
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Aqua Indiana Water Company compare with other water systems in Lake County?
By EPA's size categories, Aqua Indiana Water Company is a small system (501 to 3,300 people). Lake County has 110 active public water systems. Its population served is well below the county average of 4,845 people per system, and accounts for 0.3% of the 532,973 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active community water system reports serving 6,703 people, so Aqua Indiana Water Company 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. Indiana has 770 active community water systems, 19% of the state's 3,969 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 83 Indiana systems (2.1%) list purchased groundwater as their primary source.
Who owns and regulates Aqua Indiana Water Company?
EPA lists Aqua Indiana Water Company as privately owned. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 86 of the 110 active systems in Lake County (78%) are also privately owned.
Does Aqua Indiana Water Company have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2023. The violations listed here began between August 2019 and January 2023. By type: 1 monitoring and reporting and 1 reporting. The contaminants or rules involved are Total trihalomethanes (TTHM) and Revised Total Coliform Rule. EPA lists 1 as archived 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. 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 |
|---|---|---|---|---|
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2019-08-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
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.
Aqua Indiana Water Company: frequently asked questions
Who runs Aqua Indiana Water Company?
Aqua Indiana Water Company (PWSID IN5245017) is a community water system privately owned. It is regulated by the IN state drinking water program.
How many people does Aqua Indiana Water Company serve?
Aqua Indiana Water Company reports serving 1,350 people through 525 service connections in Lake County, Indiana.
Where does Aqua Indiana 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 Aqua Indiana Water Company have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2023. 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 Aqua Indiana 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 2 violations for this system; none is health-based, and the most recent began in January 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Aqua Indiana Water Company's water quality report?
As a community water system, Aqua Indiana 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 Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Indiana American Water - Northwest | Lake | 210,510 | Community | Surface water |
| Hammond Water Works Department | Lake | 78,384 | Community | Surface water |
| Schererville Water Department | Lake | 30,000 | Community | Purchased surface water |
| Crown Point Water Works | Lake | 30,000 | Community | Purchased surface water |
| East Chicago Water Works | Lake | 26,370 | Community | Surface water |
| St. John Municipal Water Utility | Lake | 25,700 | Community | 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, “Aqua Indiana Water Company, PWSID IN5245017, Indiana”, https://aquacensus.com/water-systems/indiana/aqua-indiana-water-company-in5245017 (data as of October 1, 2026).