Public water system · IN5245048

Active

Whiting Water Department

At a glance

Whiting Water Department (PWSID IN5245048) is an active community water system in Lake County, Indiana. It reports serving 4,900 people through 1,495 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, 3 are health-based, and the most recent began in January 2025.

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

Population served

4,900

Service connections

1,495

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDIN5245048

System typeCommunity water system

Activity statusActive

Population served4,900

Service connections1,495

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyIN state drinking water program

City servedWhiting

StateIndiana

ZIP—

CountyLake County

How does Whiting Water Department compare with other water systems in Lake County?

By EPA's size categories, Whiting Water Department is a medium system (3,301 to 10,000 people). Lake County has 110 active public water systems. Its population served is roughly in line with the county average of 4,845 people per system, and accounts for 0.9% 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 Whiting Water Department is about 27% 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 surface water means the system buys surface water from another public water system rather than drawing its own. 82 Indiana systems (2.1%) list purchased surface water as their primary source.

Who owns and regulates Whiting Water Department?

EPA lists Whiting Water Department as owned by a local government. 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. 24 of the 110 active systems in Lake County (22%) are also owned by a local government.

Does Whiting Water Department have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2025. The violations listed here began between January 1993 and January 2025. By type: 8 monitoring and reporting, 3 required treatment not met and 1 reporting. The contaminants or rules involved are Haloacetic acids (HAA5), Total trihalomethanes (TTHM), Revised Total Coliform Rule and Interim Enhanced Surface Water Treatment Rule. 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
2025-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2025-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2017-11-01	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2010-01-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
1999-11-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
1994-11-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
1993-01-01	Monitoring and reportingMonitoring, Regular · code 03	Cadmiumcode 1015	No	Resolved
1993-01-01	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
1993-01-01	Monitoring and reportingMonitoring, Regular · code 03	Chromiumcode 1020	No	Resolved
1993-01-01	Monitoring and reportingMonitoring, Regular · code 03	Mercurycode 1035	No	Resolved
1993-01-01	Monitoring and reportingMonitoring, Regular · code 03	Bariumcode 1010	No	Resolved
1993-01-01	Monitoring and reportingMonitoring, Regular · code 03	Seleniumcode 1045	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.

Whiting Water Department: frequently asked questions

Who runs Whiting Water Department?

Whiting Water Department (PWSID IN5245048) is a community water system owned by a local government. It is regulated by the IN state drinking water program.

How many people does Whiting Water Department serve?

Whiting Water Department reports serving 4,900 people through 1,495 service connections in Lake County, Indiana.

Where does Whiting Water Department 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 Whiting Water Department have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 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 Whiting Water Department'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. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.

Where can I find Whiting Water Department's water quality report?

As a community water system, Whiting Water Department 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

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, “Whiting Water Department, PWSID IN5245048, Indiana”, https://aquacensus.com/water-systems/indiana/whiting-water-department-in5245048 (data as of October 1, 2026).