Public water system · MD1020003
ActiveChesapeake Complex
At a glance
Chesapeake Complex (PWSID MD1020003) is an active non-transient non-community water system in Anne Arundel County, Maryland. It reports serving 4,785 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,785
Service connections
5
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Chesapeake Complex compare with other water systems in Anne Arundel County?
By EPA's size categories, Chesapeake Complex is a medium system (3,301 to 10,000 people). Anne Arundel County has 405 active public water systems. Its population served is about 3.4 times the county average of 1,397 people per system, and accounts for 0.8% 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 Chesapeake Complex is about 11 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. 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 Chesapeake Complex?
EPA lists Chesapeake Complex 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. 41 of the 405 active systems in Anne Arundel County (10%) are also owned by a local government.
Does Chesapeake Complex have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2018. The violations listed here began between March 1995 and October 2018. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2018-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 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.
Chesapeake Complex: frequently asked questions
Who runs Chesapeake Complex?
Chesapeake Complex (PWSID MD1020003) 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 Chesapeake Complex serve?
Chesapeake Complex reports serving 4,785 people through 5 service connections in Anne Arundel County, Maryland.
Where does Chesapeake Complex 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 Chesapeake Complex have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in October 2018. 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 Chesapeake Complex'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 3 violations for this system; none is health-based, and the most recent began in October 2018. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Chesapeake Complex's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Chesapeake Complex 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 |
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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, “Chesapeake Complex, PWSID MD1020003, Maryland”, https://aquacensus.com/water-systems/maryland/chesapeake-complex-md1020003 (data as of October 1, 2026).