Public water system · NJ0509001
ActiveSea Isle City Water Department
At a glance
Sea Isle City Water Department (PWSID NJ0509001) is an active community water system in Cape May County, New Jersey. It reports serving 15,800 people through 7,240 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
15,800
Service connections
7,240
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Sea Isle City Water Department compare with other water systems in Cape May County?
By EPA's size categories, Sea Isle City Water Department is a large system (10,001 to 100,000 people). Cape May County has 161 active public water systems, and Sea Isle City Water Department is the 6th-largest of them by population served. Its population served is about 4.7 times the county average of 3,340 people per system, and accounts for 2.9% of the 537,655 people reported by systems filed under the county. Across New Jersey, the 3,496 active systems average 2,750 people each. Nationally, the average active community water system reports serving 6,703 people, so Sea Isle City Water Department is about 136% above 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. New Jersey has 582 active community water systems, 17% of the state's 3,496 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,313 New Jersey systems (95%) list groundwater as their primary source.
Who owns and regulates Sea Isle City Water Department?
EPA lists Sea Isle City Water Department as owned by a local government. The NJ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 18 of the 161 active systems in Cape May County (11%) are also owned by a local government.
Does Sea Isle City Water Department have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2023. The violations listed here began between July 1997 and December 2023. By type: 12 monitoring and reporting. The contaminant or rule involved most often is 1,2-Dibromo-3-chloropropane (DBCP) (4 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2023-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
The 12 most recent 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.
Sea Isle City Water Department: frequently asked questions
Who runs Sea Isle City Water Department?
Sea Isle City Water Department (PWSID NJ0509001) is a community water system owned by a local government. It is regulated by the NJ state drinking water program.
How many people does Sea Isle City Water Department serve?
Sea Isle City Water Department reports serving 15,800 people through 7,240 service connections in Cape May County, New Jersey.
Where does Sea Isle City Water Department 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 Sea Isle City Water Department have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2023. 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 Sea Isle City Water Department'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in December 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the NJ state drinking water program.
Where can I find Sea Isle City Water Department's water quality report?
As a community water system, Sea Isle City Water Department 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 Cape May County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Wildwood City Water Department | Cape May | 218,472 | Community | Groundwater |
| Nj American Water - Ocean City | Cape May | 127,000 | Community | Groundwater |
| Avalon Water and Sewerage Utilities | Cape May | 39,839 | Community | Groundwater |
| Cape May Water & Sewer U | Cape May | 35,000 | Community | Groundwater |
| Stone Harbor Water Dept | Cape May | 30,850 | Community | Groundwater |
| Lower Twp Mua | Cape May | 12,416 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Sea Isle City Water Department, PWSID NJ0509001, New Jersey”, https://aquacensus.com/water-systems/new-jersey/sea-isle-city-water-department-nj0509001 (data as of October 1, 2026).