Public water system · IN2020911

Active

Leo High School

At a glance

Leo High School (PWSID IN2020911) is an active non-transient non-community water system in Allen County, Indiana. It reports serving 1,395 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in September 2007.

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

Population served

1,395

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDIN2020911

System typeNon-transient non-community water system

Activity statusActive

Population served1,395

Service connections1

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIN state drinking water program

City servedLeo

StateIndiana

ZIP—

CountyAllen County

How does Leo High School compare with other water systems in Allen County?

By EPA's size categories, Leo High School is a small system (501 to 3,300 people). Allen County has 87 active public water systems. Its population served is about 62% below the county average of 3,719 people per system, and accounts for 0.4% 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 Leo High School is about 3.2 times 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 Leo High School?

EPA lists Leo High School 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. 12 of the 87 active systems in Allen County (14%) are also owned by a local government.

Does Leo High School have drinking water violations?

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in September 2007. The violations listed here began between October 2000 and September 2007. By type: 9 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (9 of them). EPA lists 10 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
2007-09-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-08-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-07-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2003-08-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-12-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-11-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2000-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved

All 10 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.

Leo High School: frequently asked questions

Who runs Leo High School?

Leo High School (PWSID IN2020911) is a non-transient non-community water system owned by a local government. It is regulated by the IN state drinking water program.

How many people does Leo High School serve?

Leo High School reports serving 1,395 people through 1 service connection in Allen County, Indiana.

Where does Leo High 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 Leo High School have any drinking water violations?

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in September 2007. 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 Leo High 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. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in September 2007. For current results, consult EPA ECHO, or the IN state drinking water program.

Where can I find Leo High School's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Leo High 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 system	County	Population served	Type	Source
Fort Wayne - 3 Rivers Filtration Plant	Allen	269,994	Community	Surface water
New Haven Water Department	Allen	15,700	Community	Purchased surface water
Huntertown Water Works	Allen	14,058	Community	Groundwater
Pioneer Water L.L.C.	Allen	2,076	Community	Groundwater
Bf Goodrich Tire Manufacturing	Allen	1,750	Non-transient non-community	Groundwater
Maysville Region. Water & Sewer District	Allen	1,634	Community	Purchased 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, “Leo High School, PWSID IN2020911, Indiana”, https://aquacensus.com/water-systems/indiana/leo-high-school-in2020911 (data as of October 1, 2026).