Know Your Environment. Protect Your Health.

Nitrite

Wilgus Housing Water System

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020N/A00N/A
2021ND70ND
2022ND120ND
2023ND90ND

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2019-06-27ND
2019-08-08ND
2019-10-08ND
2021-02-114074651ND
2021-04-124102217ND
2021-07-064139833ND
2021-08-044149391ND
2021-09-074172240ND
2021-10-114186905ND
2021-11-024202289ND
2022-01-124227744ND
2022-02-094242913ND
2022-03-084257666ND
2022-04-064262887ND
2022-05-094279574ND
2022-06-064289194ND
2022-07-114310417ND
2022-08-084325804ND
2022-09-124339271ND
2022-10-104356797ND
2022-11-024369867ND
2022-12-064381136ND
2023-01-104403915ND
2023-02-064412760ND
2023-03-164425699ND
2023-04-044434737ND
2023-05-034447968ND
2023-06-064463713ND
2023-07-104483778ND
2023-09-134512776ND
2023-11-064541286ND