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Public water system · NJ1911002

Active

Lake Stockholm Inc.

At a glance

Lake Stockholm Inc. (PWSID NJ1911002) is an active community water system in Sussex County, New Jersey. It reports serving 300 people through 98 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2024.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

300

Service connections

98

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDNJ1911002
System typeCommunity water system
Activity statusActive
Population served300
Service connections98
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyNJ state drinking water program
City servedHardyston Twp.-1911
StateNew Jersey
ZIP—
CountySussex County

How does Lake Stockholm Inc. compare with other water systems in Sussex County?

By EPA's size categories, Lake Stockholm Inc. is a very small system (500 people or fewer). Sussex County has 476 active public water systems. Its population served is about 29% below the county average of 425 people per system, and accounts for 0.1% of the 202,506 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 Lake Stockholm Inc. 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. 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 Lake Stockholm Inc.?

EPA lists Lake Stockholm Inc. as privately owned. 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. 372 of the 476 active systems in Sussex County (78%) are also privately owned.

Does Lake Stockholm Inc. have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2024. The violations listed here began between July 2020 and July 2024. By type: 6 monitoring and reporting, 4 public notice, recordkeeping or other, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Chlorine (4 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.

BeganViolationContaminant or ruleHealth-basedStatus
2024-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2024-07-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Chlorinecode 0999NoArchived
2024-01-11ReportingReport Sample Result/Fail Monitor (RTCR) · code 4BRevised Total Coliform Rulecode 8000NoUnaddressed
2023-12-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoArchived
2023-10-28Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76Public Noticecode 7500NoResolved
2022-10-01Monitoring and reportingMonitoring, Regular · code 03Nitratecode 1040NoResolved
2022-09-29Monitoring and reportingLead Consumer Notice · code 66Lead and Copper Rulecode 5000NoResolved
2021-07-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Chlorinecode 0999NoResolved
2021-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2021-07-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Chlorinecode 0999NoResolved
2021-07-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Chlorinecode 0999NoResolved
2020-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved

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.

Lake Stockholm Inc.: frequently asked questions

Who runs Lake Stockholm Inc.?

Lake Stockholm Inc. (PWSID NJ1911002) is a community water system privately owned. It is regulated by the NJ state drinking water program.

How many people does Lake Stockholm Inc. serve?

Lake Stockholm Inc. reports serving 300 people through 98 service connections in Sussex County, New Jersey.

Where does Lake Stockholm Inc. 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 Lake Stockholm Inc. 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 July 2024. 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 Lake Stockholm Inc.'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 July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the NJ state drinking water program.

Where can I find Lake Stockholm Inc.'s water quality report?

As a community water system, Lake Stockholm Inc. 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 systemCountyPopulation servedTypeSource
Sparta Twp Water Utility - Lake MohawkSussex17,625CommunityGroundwater
Newton Water & Sewer UtilitySussex8,300CommunitySurface water
Hopatcong Water DeptSussex7,224CommunityGroundwater
Sussex County FairgroundsSussex6,246Transient non-communityGroundwater
Veolia Water New Jersey Vernon ValleySussex5,517CommunityGroundwater
Franklin Bd of Public WorksSussex5,500CommunityGroundwater

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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, “Lake Stockholm Inc., PWSID NJ1911002, New Jersey”, https://aquacensus.com/water-systems/new-jersey/lake-stockholm-inc-nj1911002 (data as of October 1, 2026).