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Review government records associated with Hopatcong, New Jersey.
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Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Hopatcong, NJ from EPA SDWIS.
Hopatcong Water Dept
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 7,224 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Mar 2025 to Sep 2025.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
2 PFAS sample results above EPA limits
Sample period: Mar 2025 to Sep 2025
UCMR5 results are sampled by public water system, not every household. Confirm your water provider before treating these as tap-water results for a specific address.
| Chemical | Concentration (µg/L) | EPA Limit (µg/L) | Sample date | Over Limit |
|---|---|---|---|---|
| PFOA | 0.0099 | 0.0040 | 2025-03-10 | Yes |
| PFOA | 0.0059 | 0.0040 | 2025-09-15 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Hopatcong drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Lake Hopatcong-Upper Musconetcong River
Reported: Nov 2026
Health-relevant causes: Mercury, Pathogens, Pesticides, Polychlorinated Biphenyls (pcbs)
Affected uses: Ecological, Fishconsumption, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Last inspected: Dec 2025
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
Sussex County
Assessment year: 2020
According to EPA, a cancer risk of 20-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 20 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designations apply to a specific pollutant and federal air quality standard (NAAQS). EPA can issue a clean-data determination while a formal designation remains in effect.
New York-N. New Jersey-Long Island: Ozone
NonattainmentSevere 158-Hour Ozone (2008 Standard)
Original designation: Jul 2012
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
New York-Northern New Jersey-Long Island: Ozone
NonattainmentSerious8-Hour Ozone (2015 Standard)
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
Historical designations under the revoked 1997 ozone standard
These records describe historical designations. EPA revoked the 1997 ozone standard on April 6, 2015.
New York-N. New Jersey-Long Island Area
Historical standard: 0.08 ppm (8-hour)
Historical designation: Nonattainment (NAAQS revoked) · Subpart 2/Moderate
Original designation: Jun 2004
Open data source: EPA final revocation ruleContinuing requirements have not been verified for this area.
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Chester
Annual mean: 1.1 Parts per billion
Observation year: 2025
Annual mean: 6.8 Parts per billion
Observation year: 2025
Annual mean: 0.044 Parts per million
EPA primary exceedance count: 3 (Ozone 8-hour 2015)
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
EPA records for current, proposed and formerly listed Superfund sites on the National Priorities List (NPL).
Open data source: Search EPA ECHOEPA FRS Registry ID 110071099924
Reported: Nov 2021
Reviewed: source query run Nov 2026
State environmental agencies maintain cleanup site databases that include state Superfund, voluntary cleanup, and brownfield remediation programs. These programs track additional sites beyond those on the federal NPL.
3 sites with active cleanup or investigation
18 ADAMS TRL, HOPATCONG BORO
0.9 miles away · SUSSEX County
Reported: Nov 2026
401 WILLS AVE, HOPATCONG BORO
2.7 miles away · SUSSEX County
Reported: Nov 2026
ALFRED WAY, HOPATCONG BORO
0.5 miles away · SUSSEX County
Reported: Nov 2026
Data from EPA ECHO
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
Release reports
Reported: Dec 2021
Data from EPA UST Finder
Sites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
No records shown in this group.
Reviewed: status dates within last 5 years
Data from MSHA
Sussex County, NJ
EPA Radon Zone Map (June 2024 release)
Sussex County is EPA Radon Zone 1 (highest potential). EPA defines Zone 1 counties as having predicted average indoor screening levels above 4 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
Special Flood Hazard Area — 1% annual chance of flooding (100-year floodplain) with base flood elevation.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
No EPA ECHO RMP facility records with a usable location matched this city report.
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Sussex County, New JerseyPop. 146,084
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 6,625 | 6,516 | 7,972 |
| Poor or Fair Health | 11.8% | 14.0% | 14.2% |
| Poor Physical Health Days | 3.2 | 3.2 | 3.3 |
| Poor Mental Health Days | 5.1 | 4.4 | 4.8 |
| Adult Smoking | 12.5% | 10.8% | 15.0% |
| Adult Obesity | 31.8% | 28.3% | 34.0% |
| Air Pollution - Particulate Matter | 7.7 | 7.8 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 7.4% | 8.8% | 9.6% |
| Life Expectancy | 78.4 | 79.2 | 77.6 |
EPA testing found PFAS in water samples from Hopatcong Water Department. Results dated Mar 10, 2025 to Sep 15, 2025 include PFBA at 0.0058 to 0.0116 micrograms per liter and PFPeA at 0.0036 to 0.0103 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 15 violations for Hopatcong Water Department, including 2 marked active.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Hopatcong.
The monitoring station at Chester recorded an annual average of 1.1 Parts per billion for sulfur dioxide in 2025.
The monitoring station at Chester recorded an annual average of 6.8 Parts per billion for nitrogen dioxide in 2025.
The monitoring station at Chester recorded an annual average of 0.044 Parts per million for ozone in 2025.
The radon data for Hopatcong covers Sussex County. EPA places this area in Zone 1, with a predicted average indoor radon screening level above 4 picocuries per liter.
This city report shows 1 Superfund site: Mansfield Trail Dump.
No brownfield sites were returned for this city report.
The county data for Hopatcong reports a life expectancy of 78.4 years in Sussex County, New Jersey.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Hopatcong reports 6,625 years of life lost to deaths before age 75 per 100,000 residents in Sussex County, New Jersey. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Hopatcong lists fine-particle pollution (PM2.5) at 7.7 micrograms per cubic meter in Sussex County, New Jersey.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.