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AquaCensus

Public water system · IN5208002

Active

Delphi Water Works

At a glance

Delphi Water Works (PWSID IN5208002) is an active community water system in Carroll County, Indiana. It reports serving 3,200 people through 1,200 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, none is health-based, and the most recent began in April 2023.

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

Population served

3,200

Service connections

1,200

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDIN5208002
System typeCommunity water system
Activity statusActive
Population served3,200
Service connections1,200
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyIN state drinking water program
City servedDelphi
StateIndiana
ZIP—
CountyCarroll County

How does Delphi Water Works compare with other water systems in Carroll County?

By EPA's size categories, Delphi Water Works is a small system (501 to 3,300 people). Carroll County has 39 active public water systems, and Delphi Water Works is the largest of them by population served. Its population served is about 10 times the county average of 306 people per system, and accounts for 27% of the 11,932 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 Delphi Water Works is about half of 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 Delphi Water Works?

EPA lists Delphi Water Works 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 39 active systems in Carroll County (21%) are also owned by a local government.

Does Delphi Water Works have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2023. The violations listed here began between April 2023 and April 2023. By type: 12 monitoring and reporting. The contaminants or rules involved are 2,4-D, Hexachlorobenzene, Heptachlor epoxide and 1,2-Dibromo-3-chloropropane (DBCP). 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.

BeganViolationContaminant or ruleHealth-basedStatus
2023-04-01Monitoring and reportingMonitoring, Regular · code 032,4-Dcode 2105NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Hexachlorobenzenecode 2274NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Heptachlor epoxidecode 2067NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 031,2-Dibromo-3-chloropropane (DBCP)code 2931NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Heptachlorcode 2065NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Toxaphenecode 2020NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Diquatcode 2032NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Endothallcode 2033NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Di(2-ethylhexyl) adipatecode 2035NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Simazinecode 2037NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Picloramcode 2040NoResolved
2023-04-01Monitoring and reportingMonitoring, Regular · code 03Benzo(a)pyrenecode 2306NoResolved

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.

Delphi Water Works: frequently asked questions

Who runs Delphi Water Works?

Delphi Water Works (PWSID IN5208002) is a community water system owned by a local government. It is regulated by the IN state drinking water program.

How many people does Delphi Water Works serve?

Delphi Water Works reports serving 3,200 people through 1,200 service connections in Carroll County, Indiana.

Where does Delphi Water Works 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 Delphi Water Works 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 April 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 Delphi Water Works' 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 April 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 Delphi Water Works' water quality report?

As a community water system, Delphi Water Works 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 Carroll County

Water systemCountyPopulation servedTypeSource
Flora Water WorksCarroll2,100CommunityGroundwater
29-MaramartCarroll800Transient non-communityGroundwater
Carroll Elementary SchoolCarroll658Non-transient non-communityGroundwater
Camden Water UtilityCarroll611CommunityGroundwater
Carroll Jr./Sr. High SchoolCarroll579Non-transient non-communityGroundwater
Camp Tecumseh - River VillageCarroll525Transient non-communityGroundwater

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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, “Delphi Water Works, PWSID IN5208002, Indiana”, https://aquacensus.com/water-systems/indiana/delphi-water-works-in5208002 (data as of October 1, 2026).