Public water system · MD1091005
ActiveBlackwater Nat. Wildlife Refuge
At a glance
Blackwater Nat. Wildlife Refuge (PWSID MD1091005) is an active transient non-community water system in Dorchester County, Maryland. It reports serving 30 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Blackwater Nat. Wildlife Refuge compare with other water systems in Dorchester County?
By EPA's size categories, Blackwater Nat. Wildlife Refuge is a very small system (500 people or fewer). Dorchester County has 70 active public water systems. Its population served is well below the county average of 351 people per system, and accounts for 0.1% of the 24,534 people reported by systems filed under the county. Across Maryland, the 2,992 active systems average 1,947 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Blackwater Nat. Wildlife Refuge is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Maryland has 2,079 active transient non-community water systems, 69% 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 Blackwater Nat. Wildlife Refuge?
EPA lists Blackwater Nat. Wildlife Refuge 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. 57 of the 70 active systems in Dorchester County (81%) are also privately owned.
Does Blackwater Nat. Wildlife Refuge have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Blackwater Nat. Wildlife Refuge. For the latest compliance status, check EPA ECHO for current compliance history.
Blackwater Nat. Wildlife Refuge: frequently asked questions
Who runs Blackwater Nat. Wildlife Refuge?
Blackwater Nat. Wildlife Refuge (PWSID MD1091005) is a transient non-community water system privately owned. It is regulated by the MD state drinking water program.
How many people does Blackwater Nat. Wildlife Refuge serve?
Blackwater Nat. Wildlife Refuge reports serving 30 people through 1 service connection in Dorchester County, Maryland.
Where does Blackwater Nat. Wildlife Refuge 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 Blackwater Nat. Wildlife Refuge have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Blackwater Nat. Wildlife Refuge'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the MD state drinking water program.
Where can I find Blackwater Nat. Wildlife Refuge's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Blackwater Nat. Wildlife Refuge is a 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 Dorchester County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Cambridge Water | Dorchester | 15,000 | Community | Groundwater |
| Town of Hurlock | Dorchester | 2,150 | Community | Groundwater |
| N. Dorchester Middle & High Schools | Dorchester | 1,500 | Non-transient non-community | Groundwater |
| Town of Secretary | Dorchester | 535 | Community | Groundwater |
| Town of Vienna | Dorchester | 460 | Community | Groundwater |
| Town of East New Market | Dorchester | 400 | 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, “Blackwater Nat. Wildlife Refuge, PWSID MD1091005, Maryland”, https://aquacensus.com/water-systems/maryland/blackwater-nat-wildlife-refuge-md1091005 (data as of October 1, 2026).