Know Your Environment. Protect Your Health.

Nitrite

Creston 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
2018ND30ND
2019ND50ND
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
2018-02-12582763ND
2018-05-22586708ND
2018-08-20591136ND
2019-03-04OE777299ND
2019-06-11OE820349ND
2019-09-17OE867151ND
2019-11-12OE893121ND
2019-12-31OE911112ND
2020-03-04OE937047ND
2020-04-13OE959013ND
2020-07-07OE1098518ND
2020-10-12OE1334020ND
2021-01-04OE1526182ND
2021-02-09OE1583757ND
2021-04-06OE1651098ND
2021-07-06OE1749002ND
2022-01-04OE1995992ND
2022-04-18OE2084084ND
2022-07-12OE2133710ND
2022-10-03OE2184118ND
2023-01-09OE2227575ND
2023-04-10OE2264805ND
2023-07-05OE2302422ND
2023-10-09OE2348464ND