Public water system · MD1020071
ActiveGuidepost Montessori
At a glance
Guidepost Montessori (PWSID MD1020071) is an active non-transient non-community water system in Anne Arundel County, Maryland. It reports serving 99 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
99
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Guidepost Montessori compare with other water systems in Anne Arundel County?
By EPA's size categories, Guidepost Montessori is a very small system (500 people or fewer). Anne Arundel County has 405 active public water systems. Its population served is well below the county average of 1,397 people per system, and accounts for less than 0.1% of the 565,834 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 Guidepost Montessori 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 Guidepost Montessori?
EPA lists Guidepost Montessori 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. 361 of the 405 active systems in Anne Arundel County (89%) are also privately owned.
Does Guidepost Montessori have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2024. The violations listed here began between January 1993 and October 2024. By type: 2 monitoring and reporting, 1 required treatment not met, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 4 as resolved and 1 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 |
|---|---|---|---|---|
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2023-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
All 5 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.
Guidepost Montessori: frequently asked questions
Who runs Guidepost Montessori?
Guidepost Montessori (PWSID MD1020071) is a non-transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Guidepost Montessori serve?
Guidepost Montessori reports serving 99 people through 1 service connection in Anne Arundel County, Maryland.
Where does Guidepost Montessori 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 Guidepost Montessori have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2024. 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 Guidepost Montessori'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 5 violations for this system; 1 is health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Guidepost Montessori's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Guidepost Montessori 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 Anne Arundel County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Glen Burnie-Broadneck | Anne Arundel | 290,606 | Community | Groundwater |
| Crofton-Odenton | Anne Arundel | 62,986 | Community | Groundwater |
| Fort George G. Meade | Anne Arundel | 62,234 | Community | Groundwater |
| City of Annapolis | Anne Arundel | 35,000 | Community | Groundwater |
| Broad Creek | Anne Arundel | 26,033 | Community | Groundwater |
| U.S. Naval Academy | Anne Arundel | 8,700 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Guidepost Montessori, PWSID MD1020071, Maryland”, https://aquacensus.com/water-systems/maryland/guidepost-montessori-md1020071 (data as of October 1, 2026).