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Review government records associated with Leonia, 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 Leonia, NJ from EPA SDWIS.
Hawthorne Water Department
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 19,458 people
Veolia Water New Jersey Hackensack
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 792,713 people
Ho Ho Kus Water Dept
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 4,060 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 Feb 2023 to Apr 2025.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
38 PFAS sample results above EPA limits
Sample period: Feb 2023 to Feb 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 | 0.0140 | 0.0040 | 2025-02-12 | Yes |
| PFOA | 0.0140 | 0.0040 | 2024-05-06 | Yes |
| PFOA | 0.0120 | 0.0040 | 2024-04-29 | Yes |
| PFOA | 0.0120 | 0.0040 | 2024-08-05 | Yes |
| PFOA | 0.0093 | 0.0040 | 2024-08-05 | Yes |
| PFOA | 0.0091 | 0.0040 | 2024-11-04 | Yes |
| PFOA | 0.0086 | 0.0040 | 2024-08-05 | Yes |
| PFOS | 0.0081 | 0.0040 | 2024-08-05 | Yes |
| PFOS | 0.0081 | 0.0040 | 2024-08-05 | Yes |
| PFOA | 0.0080 | 0.0040 | 2024-11-04 | Yes |
| PFOA | 0.0069 | 0.0040 | 2024-05-06 | Yes |
| PFOS | 0.0067 | 0.0040 | 2024-11-04 | Yes |
| PFOA | 0.0065 | 0.0040 | 2024-05-06 | Yes |
| PFOS | 0.0064 | 0.0040 | 2024-11-04 | Yes |
| PFOA | 0.0062 | 0.0040 | 2024-04-29 | Yes |
| PFOS | 0.0054 | 0.0040 | 2024-05-06 | Yes |
| PFOS | 0.0053 | 0.0040 | 2024-04-29 | Yes |
| PFOS | 0.0052 | 0.0040 | 2024-05-06 | Yes |
| PFOA | 0.0051 | 0.0040 | 2024-04-29 | Yes |
| PFOS | 0.0050 | 0.0040 | 2024-04-29 | Yes |
| PFOA | 0.0304 | 0.0040 | 2023-08-14 | Yes |
| PFOA | 0.0293 | 0.0040 | 2023-08-14 | Yes |
| PFOA | 0.0275 | 0.0040 | 2023-02-08 | Yes |
| PFOA | 0.0250 | 0.0040 | 2023-02-08 | Yes |
| PFOA | 0.0238 | 0.0040 | 2023-08-14 | Yes |
| PFOA | 0.0216 | 0.0040 | 2023-08-14 | Yes |
| PFOS | 0.0210 | 0.0040 | 2023-08-14 | Yes |
| PFOA | 0.0209 | 0.0040 | 2023-02-08 | Yes |
| PFOA | 0.0203 | 0.0040 | 2023-02-08 | Yes |
| PFOS | 0.0161 | 0.0040 | 2023-02-08 | Yes |
| PFNA | 0.0161 | 0.0100 | 2023-08-14 | Yes |
| PFOS | 0.0144 | 0.0040 | 2023-08-14 | Yes |
| PFNA | 0.0108 | 0.0100 | 2023-02-08 | Yes |
| PFOS | 0.0102 | 0.0040 | 2023-08-14 | Yes |
| PFOS | 0.0090 | 0.0040 | 2023-02-08 | Yes |
| PFOS | 0.0090 | 0.0040 | 2023-08-14 | Yes |
| PFOS | 0.0081 | 0.0040 | 2023-02-08 | Yes |
| PFOS | 0.0073 | 0.0040 | 2023-02-08 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Leonia 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.
Overpeck Creek
Reported: Nov 2026
Health-relevant causes: 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.
Bergen County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 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-Northern New Jersey-Long Island: Ozone
NonattainmentSerious8-Hour Ozone (2015 Standard)
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
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)
Maintenance areas
Previously nonattainment; currently meeting the standard and monitored under an EPA maintenance plan.
New York-N. New Jersey-Long Island
PM2.5 · PM-2.5 (2006 Standard)
Classification: Former Subpart 1
Original designation: Dec 2009
Current design value: 25 µg/m³ (2023-2025)
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Bayonne
Annual mean: 0.9 Parts per billion
Observation year: 2025
Annual mean: 29.6 Parts per billion
Observation year: 2025
Annual mean: 0.039 Parts per million
EPA primary exceedance count: 3 (Ozone 8-hour 2015)
Observation year: 2025
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
Air Violations
Last inspected: Dec 2025
Data from EPA ECHO
Reviewed: source records as of 2024
Reviewed: source query run Nov 2026
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
BROAD AVE & ELM PL, LEONIA BORO
0.1 miles away · BERGEN County
Reported: Nov 2026
340 Broad Avenue, LEONIA BORO
0.1 miles away · BERGEN County
Reported: Nov 2026
360 BROAD AVE, LEONIA BORO
0.1 miles away · BERGEN 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
Reported: Dec 2021
Data from EPA UST Finder
Reviewed: reporting year 2024
No MSHA mine or extraction site records shown for this report.
Bergen County, NJ
EPA Radon Zone Map (June 2024 release)
Bergen County is EPA Radon Zone 2 (moderate potential). EPA defines Zone 2 counties as having predicted average indoor screening levels between 2 pCi/L and 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.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
No records dated within the last 5 years surfaced for this city report.
Reviewed: last 5 years
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Bergen County, New JerseyPop. 952,997
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 | 4,492 | 6,516 | 7,972 |
| Poor or Fair Health | 11.9% | 14.0% | 14.2% |
| Poor Physical Health Days | 2.6 | 3.2 | 3.3 |
| Poor Mental Health Days | 4.0 | 4.4 | 4.8 |
| Adult Smoking | 10.7% | 10.8% | 15.0% |
| Adult Obesity | 25.2% | 28.3% | 34.0% |
| Air Pollution - Particulate Matter | 11.0 | 7.8 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 7.8% | 8.8% | 9.6% |
| Life Expectancy | 81.9 | 79.2 | 77.6 |
EPA testing found PFAS in water samples from Hawthorne Water Department. Results dated Sep 9, 2024 to Apr 8, 2025 include PFBA at 0.0053 to 0.0093 micrograms per liter and PFPeA at 0.0078 to 0.0087 micrograms per liter.
EPA testing found PFAS in water samples from Veolia Water New Jersey Hackensack. Results dated Apr 29, 2024 to Feb 12, 2025 include PFOA at 0.0051 to 0.014 micrograms per liter and PFOS at 0.005 to 0.0081 micrograms per liter.
EPA testing found PFAS in water samples from Ho Ho Kus Water Department. Results dated Feb 8, 2023 to Aug 14, 2023 include PFOA at 0.0203 to 0.0304 micrograms per liter and PFOS at 0.0073 to 0.021 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 24 violations for Hawthorne Water Department, including 1 marked active.
EPA drinking water records on this page list 2 violations for Veolia Water New Jersey Hackensack, including 1 marked active.
EPA drinking water records on this page list 7 violations for Ho Ho Kus Water Department, including 1 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 Leonia.
The monitoring station at Bayonne recorded an annual average of 0.9 Parts per billion for sulfur dioxide in 2025.
The monitoring station at Bayonne recorded an annual average of 29.6 Parts per billion for nitrogen dioxide in 2025.
The monitoring station at Bayonne recorded an annual average of 0.039 Parts per million for ozone in 2025.
Download 2025 EPA annual monitor dataCurrent air quality on AirNow
The radon data for Leonia covers Bergen County. EPA places this area in Zone 2, with a predicted average indoor radon screening level of 2 to 4 picocuries per liter.
No Superfund or brownfield sites were returned for this city report.
The county data for Leonia reports a life expectancy of 81.9 years in Bergen 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 Leonia reports 4,492 years of life lost to deaths before age 75 per 100,000 residents in Bergen 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 Leonia lists fine-particle pollution (PM2.5) at 11.0 micrograms per cubic meter in Bergen County, New Jersey.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
Federal pipeline records list an incident involving Public Service Electric & Gas Co near Leonia on Jul 2, 2020. The reported release was natural gas.