Know Your Environment. Protect Your Health.

Nitrite

Bonney Lake Water Department

NOTE: Bonney Lake Water Department purchases water from City of Tacoma which is required to test for nitrite. Sample information shown below was taken by City of Tacoma.

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020N/A00N/A
2021ND40ND
2022ND80ND
2023ND30ND

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

NOTE: Bonney Lake Water Department purchases water from City of Tacoma which is required to test for nitrite. Sample information shown below was taken by City of Tacoma.

Date Lab ID Result
2018-02-07ND
2018-03-12ND
2018-03-19ND
2018-04-11ND
2018-04-11ND
2018-06-12ND
2018-06-12ND
2018-06-21ND
2018-06-21ND
2018-07-19ND
2018-07-25ND
2018-10-18ND
2019-12-05ND
2021-06-214136297ND
2021-06-214136300ND
2021-06-214136298ND
2021-06-214136296ND
2021-06-304143413ND
2021-07-214159325ND
2022-09-154371197ND
2022-10-114371889ND
2022-11-154384533ND
2022-12-274400688ND
2022-12-274400688ND
2022-12-274400688ND
2022-12-274400688ND
2022-12-274400688ND
2023-07-124499689ND
2023-07-124499687ND
2023-10-204549137ND