Public water system · IN5277001
ActiveCarlisle Water Department
At a glance
Carlisle Water Department (PWSID IN5277001) is an active community water system in Sullivan County, Indiana. It reports serving 1,152 people through 461 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,152
Service connections
461
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Carlisle Water Department compare with other water systems in Sullivan County?
By EPA's size categories, Carlisle Water Department is a small system (501 to 3,300 people). Sullivan County has 13 active public water systems, and Carlisle Water Department is the 6th-largest of them by population served. Its population served is about 23% below the county average of 1,497 people per system, and accounts for 5.9% of the 19,464 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 Carlisle Water Department 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates Carlisle Water Department?
EPA lists Carlisle 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. 8 of the 13 active systems in Sullivan County (62%) are also owned by a local government.
Does Carlisle Water Department have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025. The violations listed here began between January 1993 and December 2025. By type: 5 monitoring and reporting, 4 public notice, recordkeeping or other, 1 reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (2 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 |
|---|---|---|---|---|
| 2025-12-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-10 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2018-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Ethylene dibromide (EDB)code 2946 | Yes | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Carlisle Water Department: frequently asked questions
Who runs Carlisle Water Department?
Carlisle Water Department (PWSID IN5277001) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does Carlisle Water Department serve?
Carlisle Water Department reports serving 1,152 people through 461 service connections in Sullivan County, Indiana.
Where does Carlisle Water Department 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 Carlisle Water Department have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 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 Carlisle 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, 2 are health-based, and the most recent began in December 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 Carlisle Water Department's water quality report?
As a community water system, Carlisle 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 Sullivan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Indiana American Water - Sullivan | Sullivan | 6,598 | Community | Groundwater |
| Shelburn Water Utilities | Sullivan | 2,500 | Community | Groundwater |
| Indiana American Water - Farmersburg | Sullivan | 2,095 | Community | Purchased groundwater |
| Paxton Water Corporation | Sullivan | 2,013 | Community | Groundwater |
| Dugger Utilities | Sullivan | 1,935 | Community | Purchased groundwater |
| Hymera Water Works | Sullivan | 1,015 | 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, “Carlisle Water Department, PWSID IN5277001, Indiana”, https://aquacensus.com/water-systems/indiana/carlisle-water-department-in5277001 (data as of October 1, 2026).