Know Your Environment. Protect Your Health.

Nitrite

Sunnyhill Water Association

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
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

Date Lab ID Result
2018-03-14180315-001NIND
2018-03-14180315-002NIND
2018-11-19181120-001NIND
2019-05-08190509-004NIND
2019-05-08190509-005NIND
2019-05-08190509-006NIND
2020-04-13200414-031NIND
2020-04-13200414-032NIND
2020-04-13200414-033NIND
2021-04-13NI-210414-044ND
2021-04-13NI-210414-046ND
2021-04-13NI-210414-045ND
2022-03-23NI-220324-004ND
2022-03-23NI-220324-005ND
2022-03-23NI-220324-006ND
2023-03-07NI-230308-027ND
2023-03-07NI-230308-028ND
2023-03-07NI-230308-029ND