Public water system · DE0000552
ActiveArtesian Water Company
At a glance
Artesian Water Company (PWSID DE0000552) is an active community water system in New Castle County, Delaware. It reports serving 231,114 people through 85,347 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in July 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
231,114
Service connections
85,347
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Artesian Water Company compare with other water systems in New Castle County?
By EPA's size categories, Artesian Water Company is a very large system (more than 100,000 people). New Castle County has 76 active public water systems, and Artesian Water Company is the largest of them by population served. Its population served is about 32 times the county average of 7,119 people per system, and accounts for 43% of the 541,043 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 Artesian Water Company is about 34 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 6 Delaware systems (1.2%) list purchased surface water as their primary source.
Who owns and regulates Artesian Water Company?
EPA lists Artesian Water Company 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. 54 of the 76 active systems in New Castle County (71%) are also privately owned.
Does Artesian Water Company have drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in July 2015. The violations listed here began between November 2005 and July 2015. By type: 3 monitoring and reporting, 3 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Radium (-226 and -228) (2 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2015-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2011-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2011-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2007-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 2005-11-01 | Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 7 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.
Artesian Water Company: frequently asked questions
Who runs Artesian Water Company?
Artesian Water Company (PWSID DE0000552) is a community water system privately owned. It is regulated by the DE state drinking water program.
How many people does Artesian Water Company serve?
Artesian Water Company reports serving 231,114 people through 85,347 service connections in New Castle County, Delaware.
Where does Artesian Water Company get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Artesian Water Company have any drinking water violations?
EPA's records list 7 violations for this system; 3 are health-based, and the most recent began in July 2015. 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 Artesian Water Company'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 7 violations for this system; 3 are health-based, and the most recent began in July 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the DE state drinking water program.
Where can I find Artesian Water Company's water quality report?
As a community water system, Artesian Water Company 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 New Castle County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wilmington Water Department | New Castle | 107,976 | Community | Surface water |
| Veolia Water Delaware, Inc. | New Castle | 100,495 | Community | Surface water |
| Newark Water Department | New Castle | 40,000 | Community | Surface water |
| Middletown Water Department | New Castle | 17,700 | Community | Purchased surface water |
| Municipal Services Commission | New Castle | 5,549 | Community | Groundwater |
| East Ncc District | New Castle | 5,538 | 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, “Artesian Water Company, PWSID DE0000552, Delaware”, https://aquacensus.com/water-systems/delaware/artesian-water-company-de0000552 (data as of October 1, 2026).