Nitrate in New Jersey Drinking Water — 60 ZIPs Tested
EPA data analysis for nitrate in New Jersey drinking water systems
ZipCheckup tracks Nitrate in New Jersey drinking water: 60 ZIP codes with detected levels on record. 57 ZIP codes exceed the EPA limit (10 mg/L (as nitrogen)). Nitrate carries a high health-risk designation.
Nitrate Contamination in New Jersey
ZipCheckup analyzed drinking water data across 726 ZIP codes in New Jersey for nitrate contamination. 60 ZIP codes have reported nitrate detections, and 57 have EPA violations on record.
The violation rate for nitrate in New Jersey is 7.9% of all ZIP codes — higher than the national average.
EPA Standard for Nitrate
The EPA maximum contaminant level (MCL) for nitrate is 10 mg/L (as nitrogen), governed by the National Primary Drinking Water Regulations. Water systems that exceed this limit must take corrective action and notify consumers.
Worst ZIP Codes for Nitrate in New Jersey
These ZIP codes reported the highest nitrate levels in New Jersey based on CCR reports and EPA data:
Lowest Nitrate Levels in New Jersey
These ZIP codes had the lowest reported nitrate detections in New Jersey:
Health Effects of Nitrate
How to Remove Nitrate From Drinking Water
The most effective treatment for nitrate removal is Reverse Osmosis or Ion Exchange. Look for filters certified under NSF 53 / NSF 58 standards.
Check Your ZIP Code
Use the ZipCheckup water quality search to see nitrate data for your specific water system in New Jersey.
Worst ZIP Codes for Nitrate in New Jersey
Ranked by highest nitrate detection level.
| Rank | ZIP Code | City | Level Detected | EPA Limit | Status |
|---|---|---|---|---|---|
| 1 | 07423 | Ho Ho Kus | 9100 ppb | 10000 ppb | Within Limit |
| 2 | 07432 | Midland Park | 9100 ppb | 10000 ppb | Within Limit |
| 3 | 07450 | Ridgewood | 9100 ppb | 10000 ppb | Within Limit |
| 4 | 07451 | Ridgewood | 9100 ppb | 10000 ppb | Within Limit |
| 5 | 07452 | Glen Rock | 9100 ppb | 10000 ppb | Within Limit |
| 6 | 07481 | Wyckoff | 9100 ppb | 10000 ppb | Within Limit |
| 7 | 07653 | Paramus | 9100 ppb | 10000 ppb | Within Limit |
| 8 | 07801 | Dover | 5400 ppb | 10000 ppb | Within Limit |
| 9 | 07802 | Dover | 5400 ppb | 10000 ppb | Within Limit |
| 10 | 07806 | Picatinny Arsenal | 5400 ppb | 10000 ppb | Within Limit |
| 11 | 07869 | Randolph | 5400 ppb | 10000 ppb | Within Limit |
| 12 | 07999 | Whippany | 5400 ppb | 10000 ppb | Within Limit |
| 13 | 07010 | Cliffside Park | 2300 ppb | 10000 ppb | Within Limit |
| 14 | 07020 | Edgewater | 2300 ppb | 10000 ppb | Within Limit |
| 15 | 07022 | Fairview | 2300 ppb | 10000 ppb | Within Limit |
| 16 | 07024 | Fort Lee | 2300 ppb | 10000 ppb | Within Limit |
| 17 | 07047 | North Bergen | 2300 ppb | 10000 ppb | Within Limit |
| 18 | 07070 | Rutherford | 2300 ppb | 10000 ppb | Within Limit |
| 19 | 07072 | Carlstadt | 2300 ppb | 10000 ppb | Within Limit |
| 20 | 07073 | East Rutherford | 2300 ppb | 10000 ppb | Within Limit |
Lowest Nitrate Levels in New Jersey
| ZIP Code | City | Level Detected |
|---|---|---|
| 07676 | Township Of Washington | 2300 ppb |
| 07675 | Westwood | 2300 ppb |
| 07670 | Tenafly | 2300 ppb |
| 07666 | Teaneck | 2300 ppb |
| 07662 | Rochelle Park | 2300 ppb |
| 07661 | River Edge | 2300 ppb |
| 07660 | Ridgefield Park | 2300 ppb |
| 07657 | Ridgefield | 2300 ppb |
| 07652 | Paramus | 2300 ppb |
| 07650 | Palisades Park | 2300 ppb |
Cities with Nitrate Data in New Jersey
63 cities in New Jersey have nitrate testing data available.
+ 43 more cities