Public water system · MD1060046

Active

Ava Wanas Montessori School

At a glance

Ava Wanas Montessori School (PWSID MD1060046) is an active non-transient non-community water system in Carroll County, Maryland. It reports serving 45 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2014.

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

Population served

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDMD1060046

System typeNon-transient non-community water system

Activity statusActive

Population served45

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyMD state drinking water program

City served—

StateMaryland

ZIP—

CountyCarroll County

How does Ava Wanas Montessori School compare with other water systems in Carroll County?

By EPA's size categories, Ava Wanas Montessori School is a very small system (500 people or fewer). Carroll County has 208 active public water systems. Its population served is well below the county average of 618 people per system, and accounts for less than 0.1% of the 128,551 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Ava Wanas Montessori 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. Maryland has 491 active non-transient non-community water systems, 16% of the state's 2,992 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,870 Maryland systems (96%) list groundwater as their primary source.

Who owns and regulates Ava Wanas Montessori School?

EPA lists Ava Wanas Montessori School as privately owned. The MD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 185 of the 208 active systems in Carroll County (89%) are also privately owned.

Does Ava Wanas Montessori School have drinking water violations?

EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2014. The violations listed here began between January 1994 and July 2014. By type: 8 monitoring and reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (6 of them). EPA lists 6 as resolved and 4 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

Began	Violation	Contaminant or rule	Health-based	Status
2014-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2014-01-01	Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51	Lead and Copper Rulecode 5000	No	Resolved
2012-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2012-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2012-07-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2010-08-01	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Archived
1998-11-30	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Archived
1998-10-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Archived
1994-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1994-01-01	Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56	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.

Ava Wanas Montessori School: frequently asked questions

Who runs Ava Wanas Montessori School?

Ava Wanas Montessori School (PWSID MD1060046) is a non-transient non-community water system privately owned. It is regulated by the MD state drinking water program.

How many people does Ava Wanas Montessori School serve?

Ava Wanas Montessori School reports serving 45 people through 1 service connection in Carroll County, Maryland.

Where does Ava Wanas Montessori 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 Ava Wanas Montessori School have any drinking water violations?

EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in July 2014. 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 Ava Wanas Montessori 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; 2 are health-based, and the most recent began in July 2014. For current results, consult EPA ECHO, or the MD state drinking water program.

Where can I find Ava Wanas Montessori School's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Ava Wanas Montessori 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 Carroll County

Water system	County	Population served	Type	Source
City of Westminster	Carroll	35,256	Community	Surface water
Freedom District	Carroll	24,867	Community	Surface water
Town of Mount Airy	Carroll	9,890	Community	Groundwater
City of Taneytown	Carroll	6,750	Community	Groundwater
Town of Hampstead	Carroll	6,600	Community	Groundwater
Town of Manchester	Carroll	4,954	Community	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, “Ava Wanas Montessori School, PWSID MD1060046, Maryland”, https://aquacensus.com/water-systems/maryland/ava-wanas-montessori-school-md1060046 (data as of October 1, 2026).