Public water system · DE00A0757
ActiveWillow Lake Pump District
At a glance
Willow Lake Pump District (PWSID DE00A0757) is an active community water system in Sussex County, Delaware. It reports serving 120 people through 39 service connections. 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
120
Service connections
39
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Willow Lake Pump District compare with other water systems in Sussex County?
By EPA's size categories, Willow Lake Pump District is a very small system (500 people or fewer). Sussex County has 246 active public water systems. Its population served is well below the county average of 1,556 people per system, and accounts for less than 0.1% of the 382,753 people reported by systems filed under the county. Across Delaware, the 494 active systems average 2,238 people each. Nationally, the average active community water system reports serving 6,703 people, so Willow Lake Pump District is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Delaware has 219 active community water systems, 44% of the state's 494 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 459 Delaware systems (93%) list groundwater as their primary source.
Who owns and regulates Willow Lake Pump District?
EPA lists Willow Lake Pump District as privately owned. The DE state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 215 of the 246 active systems in Sussex County (87%) are also privately owned.
Does Willow Lake Pump District 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 Willow Lake Pump District. For the latest compliance status, check EPA ECHO for current compliance history.
Willow Lake Pump District: frequently asked questions
Who runs Willow Lake Pump District?
Willow Lake Pump District (PWSID DE00A0757) is a community water system privately owned. It is regulated by the DE state drinking water program.
How many people does Willow Lake Pump District serve?
Willow Lake Pump District reports serving 120 people through 39 service connections in Sussex County, Delaware.
Where does Willow Lake Pump District 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 Willow Lake Pump District have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Willow Lake Pump District'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 the system's annual water quality report, EPA ECHO, or the DE state drinking water program.
Where can I find Willow Lake Pump District's water quality report?
As a community water system, Willow Lake Pump District must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Sussex County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rehoboth Pump District (Tui) | Sussex | 81,417 | Community | Groundwater |
| Bethany Bay Pump District | Sussex | 51,000 | Community | Groundwater |
| Dewey Beach Water Department | Sussex | 31,000 | Community | Purchased groundwater |
| Rehoboth Beach Water Department | Sussex | 25,000 | Community | Groundwater |
| Artesian Southern Sussex Regional | Sussex | 18,215 | Community | Groundwater |
| Sussex Shores Water Company | Sussex | 12,450 | 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, “Willow Lake Pump District, PWSID DE00A0757, Delaware”, https://aquacensus.com/water-systems/delaware/willow-lake-pump-district-de00a0757 (data as of October 1, 2026).