Know Your Environment. Protect Your Health.

Nitrite

Bud Well #7 Water Treatment Plant

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND50ND
2020ND40ND
20210.0250 ppm83ND - 0.0690 ppm
2022ND50ND
20230.0595 ppm83ND - 0.173 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 Result
2018-01-10ND
2018-01-17ND
2018-04-09ND
2018-04-09ND
2018-07-11ND
2018-07-16ND
2018-10-02ND
2018-10-02ND
2019-01-08ND
2019-01-08ND
2019-04-09ND
2019-10-01ND
2019-10-01ND
2020-01-08ND
2020-01-08ND
2020-10-07ND
2020-10-07ND
2021-01-05ND
2021-01-05ND
2021-04-14ND
2021-06-160.0650 ppm
2021-07-15ND
2021-07-15ND
2021-10-060.0690 ppm
2021-10-060.0660 ppm
2022-01-05ND
2022-01-05ND
2022-04-11ND
2022-04-19ND
2022-07-20ND
2023-01-100.163 ppm
2023-01-10ND
2023-04-04ND
2023-04-04ND
2023-07-12ND
2023-07-120.173 ppm
2023-10-10ND
2023-10-100.140 ppm