Know Your Environment. Protect Your Health.

Nitrite

South Midway City 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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
20210.00150 ppm21ND - 0.00300 ppm
2022ND10ND
20230.00300 ppm110.00300 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 Lab ID Result
2018-01-03CA3000825_002_002-201801030820ND
2019-01-02CA3000825_002_002-201901020935ND
2020-02-18CA3000825_002_002-202002181140ND
2021-01-04CA3000825_002_002-2021010410400.00300 ppm
2021-01-04CA3000825_002_002-202101041040ND
2022-01-03CA3000825_002_002-202201031010ND
2023-01-05CA3000825_002_002-2023010508300.00300 ppm