Know Your Environment. Protect Your Health.

Nitrite

Cazadero Water Company Inc.

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND30ND
2021ND10ND
2022ND40ND
2023ND20ND

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
2019-03-22CA4900508_006_006-201903221050ND
2019-03-22CA4900508_001_001-201903221150ND
2019-03-22CA4900508_002_002-201903221145ND
2020-12-17CA4900508_005_005-202012171252ND
2020-12-17CA4900508_001_001-202012171230ND
2020-12-17CA4900508_011_011-202012171238ND
2021-06-08CA4900508_005_005-202106080926ND
2022-03-14CA4900508_011_011-202203141039ND
2022-11-03CA4900508_005_005-202211031155ND
2022-11-03CA4900508_006_006-202211031102ND
2022-11-03CA4900508_002_002-202211031250ND
2023-03-06CA4900508_001_001-202303060812ND
2023-03-06CA4900508_011_011-202303060912ND