Know Your Environment. Protect Your Health.

Nitrite

Orangewood 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.

 

115

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND180ND
2019ND160ND
2020ND230ND
2021ND170ND
2022ND180ND
2023ND230ND

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
2018-02-01ND
2018-02-01ND
2018-02-01ND
2018-02-06ND
2018-02-06ND
2018-02-06ND
2018-04-03ND
2018-04-03ND
2018-04-03ND
2018-05-09ND
2018-07-09ND
2018-07-09ND
2018-07-09ND
2018-07-10ND
2018-10-03ND
2018-10-03ND
2018-10-03ND
2018-10-04ND
2019-01-02ND
2019-01-02ND
2019-01-02ND
2019-01-03ND
2019-01-03ND
2019-01-03ND
2019-04-02ND
2019-04-03ND
2019-04-03ND
2019-07-09ND
2019-07-10ND
2019-07-10ND
2019-07-10ND
2019-10-09ND
2019-10-09ND
2019-10-10ND
2020-01-08ND
2020-01-08ND
2020-01-16ND
2020-01-16ND
2020-02-19ND
2020-04-06ND
2020-04-06ND
2020-04-07ND
2020-05-19ND
2020-06-03ND
2020-06-03ND
2020-06-03ND
2020-06-04ND
2020-06-04ND
2020-06-04ND
2020-07-15ND
2020-07-16ND
2020-07-24ND
2020-07-24ND
2020-10-02ND
2020-10-05ND
2020-10-05ND
2020-10-05ND
2021-01-12ND
2021-01-12ND
2021-01-13ND
2021-01-13ND
2021-01-13ND
2021-04-05ND
2021-04-07ND
2021-04-07ND
2021-04-07ND
2021-07-06ND
2021-07-07ND
2021-07-15ND
2021-07-15ND
2021-10-05ND
2021-10-05ND
2021-10-05ND
2021-10-06ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-01-20ND
2022-01-20ND
2022-01-20ND
2022-04-11ND
2022-04-11ND
2022-04-12ND
2022-04-12ND
2022-07-06ND
2022-07-06ND
2022-07-06ND
2022-07-12ND
2022-10-10ND
2022-10-10ND
2022-10-10ND
2022-10-11ND
2023-01-09ND
2023-01-09ND
2023-01-09ND
2023-01-10ND
2023-01-10ND
2023-01-10ND
2023-04-04ND
2023-04-04ND
2023-04-05ND
2023-04-05ND
2023-05-08ND
2023-05-08ND
2023-05-08ND
2023-05-08ND
2023-05-08ND
2023-07-11ND
2023-07-11ND
2023-07-12ND
2023-07-12ND
2023-10-04ND
2023-10-04ND
2023-10-05ND
2023-10-05ND