EWG's Tap Water Database — 2019 UPDATE


Nitrate and nitrite

Syracuse City

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20120.520 ppm110.520 ppm
20130.500 ppm110.500 ppm
20140.510 ppm110.510 ppm
20150.500 ppm110.500 ppm
20160.550 ppm110.550 ppm
20170.430 ppm110.430 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2012-05-082012 NITRATE SYR0.520 ppm
2013-05-142013 NITRATE SYR0.500 ppm
2014-05-132Q2014 NITRATE S0.510 ppm
2015-05-132015 NITRATE SYR0.500 ppm
2016-05-102Q2016 NITRATE S0.550 ppm
2017-05-102Q2017 NIT SYR0.430 ppm