Know Your Environment. Protect Your Health.

Nitrite

Fairfield Water Supply

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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
2018-01-09OE609298ND
2018-04-09OE643316ND
2018-07-17OE685077ND
2018-10-16OE728139ND
2019-01-08OE758153ND
2019-04-08OE791586ND
2019-07-15OE834954ND
2019-10-21OE883046ND
2020-01-14OE916884ND
2020-04-06OE953949ND
2020-07-13OE1112499ND
2020-10-12OE1333987ND
2021-01-12OE1541953ND
2021-04-12OE1658891ND
2021-07-12OE1754768ND
2021-10-11OE1886751ND
2022-01-11OE2006937ND
2022-05-02OE2092074ND
2022-07-11OE2131740ND
2022-10-03OE2184123ND
2023-01-09OE2227552ND
2023-04-17OE2268282ND
2023-07-10OE2304555ND
2023-10-03OE2345679ND