Exceeds EPA Limit Nitrate EXCEEDS EPA LIMIT

Nitrate in River Edge, NJ Drinking Water

Nitrate data for River Edge, New Jersey · 13,155 residents · 1 ZIP code

Routine testing in River Edge, New Jersey turned up Nitrate — samples from the public supply came back positive, placing this contaminant on the list of substances residents here have a concrete reason to look into.

2.3 ppb
Max Level Detected
2.3 ppb
Average Level
10 mg/L (as nitrogen)
EPA MCL
High
Health Risk
Reverse Osmosis or Ion Exchange
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14

Nitrate in River Edge Tap Water

Nitrate has been detected in River Edge, New Jersey drinking water at a maximum level of 2.3 ppb — below the EPA MCL of 10 mg/L (as nitrogen).

This analysis covers 13,155 residents across 1 ZIP code in River Edge.

River Edge's overall water quality grade is D (50/100).

Is Nitrate in River Edge Water Safe?

Nitrate levels in parts of River Edge exceed the EPA MCL of 10 mg/L (as nitrogen). The EPA requires water systems to take corrective action when this limit is exceeded.

If you live in an affected ZIP code, consider installing a reverse osmosis or ion exchange filter certified under NSF 53 / NSF 58 and testing your water independently.

Nitrate Levels by ZIP Code

ZIP Code Nitrate Level EPA Limit Status
07661 2.3 ppm 10 mg/L (as nitrogen) OK

Average nitrate level across River Edge: 2.3 ppb

Health Effects of Nitrate

  • Methemoglobinemia ("blue baby syndrome") in infants under 6 months
  • Increased risk of colorectal and bladder cancer (long-term)
  • Thyroid disease from chronic exposure
  • Possible reproductive effects

Health risk severity: High. Governed by the National Primary Drinking Water Regulations.

How Nitrate Gets Into Drinking Water

  • Agricultural fertilizer runoff
  • Animal feedlot operations and manure
  • Septic system leachate
  • Urban stormwater and wastewater discharge

What to Do About Nitrate in River Edge Water

  1. Reverse osmosis is the most effective method for nitrate removal
  2. Ion exchange systems designed for nitrate can also work
  3. Standard carbon filters do NOT remove nitrate
  4. Boiling water increases nitrate concentration — never boil for nitrate

Look for filters certified under NSF 53 / NSF 58 for nitrate removal.

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