Public water system · DE0000939
ActiveHolly Hill Estates
At a glance
Holly Hill Estates (PWSID DE0000939) is an active community water system in Kent County, Delaware. It reports serving 831 people through 279 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; all are health-based, and the most recent began in April 1998.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
831
Service connections
279
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Holly Hill Estates compare with other water systems in Kent County?
By EPA's size categories, Holly Hill Estates is a small system (501 to 3,300 people). Kent County has 136 active public water systems. Its population served is about 31% below the county average of 1,201 people per system, and accounts for 0.5% of the 163,362 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 Holly Hill Estates 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 Holly Hill Estates?
EPA lists Holly Hill Estates 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. 118 of the 136 active systems in Kent County (87%) are also privately owned.
Does Holly Hill Estates have drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in April 1998. The violations listed here began between April 1998 and April 1998. By type: 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 as archived. 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 |
|---|---|---|---|---|
| 1998-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 2 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.
Holly Hill Estates: frequently asked questions
Who runs Holly Hill Estates?
Holly Hill Estates (PWSID DE0000939) is a community water system privately owned. It is regulated by the DE state drinking water program.
How many people does Holly Hill Estates serve?
Holly Hill Estates reports serving 831 people through 279 service connections in Kent County, Delaware.
Where does Holly Hill Estates 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 Holly Hill Estates have any drinking water violations?
EPA's records list 2 violations for this system; all are health-based, and the most recent began in April 1998. 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 Holly Hill Estates' 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 2 violations for this system; all are health-based, and the most recent began in April 1998. For current results, consult the system's annual water quality report, EPA ECHO, or the DE state drinking water program.
Where can I find Holly Hill Estates' water quality report?
As a community water system, Holly Hill Estates 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 Kent County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Dover Water Department | Kent | 39,491 | Community | Groundwater |
| Camden Pump District | Kent | 17,208 | Community | Groundwater |
| Garrison Lake Pump District | Kent | 17,148 | Community | Groundwater |
| Smyrna Water Department | Kent | 11,813 | Community | Groundwater |
| Dover Air Force Base | Kent | 11,000 | Community | Groundwater |
| Milford Water Department | Kent | 9,800 | 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, “Holly Hill Estates, PWSID DE0000939, Delaware”, https://aquacensus.com/water-systems/delaware/holly-hill-estates-de0000939 (data as of October 1, 2026).