Public water system · MD1070011
ActiveConowingo Elementary
At a glance
Conowingo Elementary (PWSID MD1070011) is an active non-transient non-community water system in Cecil County, Maryland. It reports serving 874 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 8 violations for this system; 1 is health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
874
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Conowingo Elementary compare with other water systems in Cecil County?
By EPA's size categories, Conowingo Elementary is a small system (501 to 3,300 people). Cecil County has 166 active public water systems. Its population served is about 155% above the county average of 343 people per system, and accounts for 1.5% of the 56,867 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 Conowingo Elementary is about twice 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 Conowingo Elementary?
EPA lists Conowingo Elementary as owned by a local government. 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. 14 of the 166 active systems in Cecil County (8.4%) are also owned by a local government.
Does Conowingo Elementary have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2021. The violations listed here began between July 1989 and October 2021. By type: 7 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2021-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2009-04-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-04-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2005-10-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1989-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 8 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.
Conowingo Elementary: frequently asked questions
Who runs Conowingo Elementary?
Conowingo Elementary (PWSID MD1070011) is a non-transient non-community water system owned by a local government. It is regulated by the MD state drinking water program.
How many people does Conowingo Elementary serve?
Conowingo Elementary reports serving 874 people through 1 service connection in Cecil County, Maryland.
Where does Conowingo Elementary 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 Conowingo Elementary have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2021. 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 Conowingo Elementary'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 8 violations for this system; 1 is health-based, and the most recent began in October 2021. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Conowingo Elementary's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Conowingo Elementary 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 Cecil County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Town of Elkton | Cecil | 15,625 | Community | Surface water |
| Town of North East | Cecil | 8,600 | Community | Surface water |
| Town of Perryville | Cecil | 4,413 | Community | Surface water |
| Town of Charlestown | Cecil | 3,791 | Community | Groundwater |
| Town of Rising Sun | Cecil | 2,200 | Community | Purchased surface water |
| Perry Point V.A. Medical Center | Cecil | 2,000 | Community | 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, “Conowingo Elementary, PWSID MD1070011, Maryland”, https://aquacensus.com/water-systems/maryland/conowingo-elementary-md1070011 (data as of October 1, 2026).