Know Your Environment. Protect Your Health.

Nitrite

Marygold Mutual Water Company

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020N/A00N/A
2021ND40ND
2022ND20ND
2023N/A00N/A

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
2018-10-17CA3610028_006_006-201810171015ND
2018-10-24CA3610028_007_007-201810241016ND
2021-07-21CA3610028_006_006-202107210734ND
2021-07-28CA3610028_007_007-202107280728ND
2021-12-20CA3610028_006_006-202112200950ND
2021-12-22CA3610028_007_007-202112220945ND
2022-08-24CA3610028_006_006-202208240704ND
2022-08-31CA3610028_007_007-202208311105ND