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Public water system · IN2020843

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St. Aloysius Catholic School

At a glance

St. Aloysius Catholic School (PWSID IN2020843) is an active non-transient non-community water system in Allen County, Indiana. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2025.

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

Population served

100

Service connections

1

Primary source

GW

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDIN2020843
System typeNon-transient non-community water system
Activity statusActive
Population served100
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyIN state drinking water program
City servedYoder
StateIndiana
ZIP—
CountyAllen County

How does St. Aloysius Catholic School compare with other water systems in Allen County?

By EPA's size categories, St. Aloysius Catholic School is a very small system (500 people or fewer). Allen County has 87 active public water systems. Its population served is well below the county average of 3,719 people per system, and accounts for less than 0.1% of the 323,592 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so St. Aloysius Catholic School is well below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Indiana has 603 active non-transient non-community water systems, 15% 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 St. Aloysius Catholic School?

EPA lists St. Aloysius Catholic School 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. 74 of the 87 active systems in Allen County (85%) are also privately owned.

Does St. Aloysius Catholic School have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in December 2025. The violations listed here began between January 2015 and December 2025. By type: 6 monitoring and reporting, 3 reporting, 2 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 10 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

BeganViolationContaminant or ruleHealth-basedStatus
2025-12-02Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoUnaddressed
2025-01-01Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75Public Noticecode 7500NoUnaddressed
2025-01-01ReportingReport Sample Result/Fail Monitor (RTCR) · code 4BRevised Total Coliform Rulecode 8000NoResolved
2024-10-17Required treatment not metLSL Inventory · code 2ELead and Copper Rule Revisionscode 5200YesResolved
2024-10-17ReportingLSL Reporting · code 4GLead and Copper Rule Revisionscode 5200NoResolved
2022-01-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
2020-01-01ReportingReport Sample Result/Fail Monitor (RTCR) · code 4BRevised Total Coliform Rulecode 8000NoResolved
2018-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2017-01-01Monitoring and reportingLead Consumer Notice · code 66Lead and Copper Rulecode 5000NoResolved
2015-10-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2015-01-01Monitoring and reportingMonitoring, Regular · code 03p-Dichlorobenzenecode 2969NoResolved
2015-01-01Monitoring and reportingMonitoring, Regular · code 03o-Dichlorobenzenecode 2968NoResolved

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.

St. Aloysius Catholic School: frequently asked questions

Who runs St. Aloysius Catholic School?

St. Aloysius Catholic School (PWSID IN2020843) is a non-transient non-community water system privately owned. It is regulated by the IN state drinking water program.

How many people does St. Aloysius Catholic School serve?

St. Aloysius Catholic School reports serving 100 people through 1 service connection in Allen County, Indiana.

Where does St. Aloysius Catholic School 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 St. Aloysius Catholic School have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is 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 St. Aloysius Catholic School'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, one is health-based, and the most recent began in December 2025. For current results, consult EPA ECHO, or the IN state drinking water program.

Where can I find St. Aloysius Catholic School's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. St. Aloysius Catholic School is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Allen County

Water systemCountyPopulation servedTypeSource
Fort Wayne - 3 Rivers Filtration PlantAllen269,994CommunitySurface water
New Haven Water DepartmentAllen15,700CommunityPurchased surface water
Huntertown Water WorksAllen14,058CommunityGroundwater
Pioneer Water L.L.C.Allen2,076CommunityGroundwater
Bf Goodrich Tire ManufacturingAllen1,750Non-transient non-communityGroundwater
Maysville Region. Water & Sewer DistrictAllen1,634CommunityPurchased 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, “St. Aloysius Catholic School, PWSID IN2020843, Indiana”, https://aquacensus.com/water-systems/indiana/st-aloysius-catholic-school-in2020843 (data as of October 1, 2026).