Know Your Environment. Protect Your Health.

Nitrate and nitrite

Village of West Sullivan

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0770 ppm110.0770 ppm
20190.0700 ppm110.0700 ppm
20200.0920 ppm110.0920 ppm
20210.0327 ppm32ND - 0.0840 ppm
20220.0490 ppm220.0150 ppm - 0.0830 ppm
20230.0340 ppm220.01000 ppm - 0.0580 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
2018-08-27AD307270.0770 ppm
2019-08-26AD535960.0700 ppm
2020-09-0220131450.0920 ppm
2021-08-042116087ND
2021-08-0421154660.0140 ppm
2021-08-0421154650.0840 ppm
2022-08-2422163620.0150 ppm
2022-08-2422163610.0830 ppm
2023-11-2923134770.0580 ppm
2023-11-2923134780.01000 ppm