Know Your Environment. Protect Your Health.

Nitrite

Singing Meadows Subdivision

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.

 

10

Samples

2

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
20210.967 ppm110.967 ppm
20220.498 ppm53ND - 1.62 ppm
20230.485 ppm43ND - 1.34 ppm

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
2021-12-09Q21347480050.967 ppm
2022-03-28Q22096420060.613 ppm
2022-06-20Q22168910011.62 ppm
2022-06-23Q22176340010.259 ppm
2022-09-28Q2229275001ND
2022-11-14Q2234090001ND
2023-02-14Q23057540010.564 ppm
2023-05-30Q2319949001ND
2023-08-15Q23340600010.0340 ppm
2023-12-07Q23523610011.34 ppm