Know Your Environment. Protect Your Health.

Nitrate and nitrite

Briarcliff Manor Village

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.137 ppm110.137 ppm
20190.165 ppm110.165 ppm
20200.150 ppm110.150 ppm
20210.137 ppm110.137 ppm
20220.0934 ppm110.0934 ppm
20230.0988 ppm330.0974 ppm - 0.101 ppm

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG 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
2018-07-05AU14087NIT0.137 ppm
2019-07-18AV15084NIT0.165 ppm
2020-08-07AW15105NIT0.150 ppm
2021-09-23AX19444-NIT0.137 ppm
2022-09-28AY17452-NIT0.0934 ppm
2023-08-30AZ16072-NIT0.0980 ppm
2023-08-30AZ16070-NIT0.101 ppm
2023-09-15AZ17035-NIT0.0974 ppm