Know Your Environment. Protect Your Health.

Nitrite

Sagerton Water Supply Corporation

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.351 ppm43ND - 0.670 ppm
20190.131 ppm41ND - 0.522 ppm
2020ND40ND
20210.290 ppm42ND - 0.788 ppm
20220.0948 ppm41ND - 0.379 ppm
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
2018-03-01Q1808596003ND
2018-05-29Q18212240010.670 ppm
2018-09-11Q18357970010.587 ppm
2018-11-29Q18487420010.146 ppm
2019-02-28Q1908749002ND
2019-06-12Q19349480010.522 ppm
2019-08-22Q1958558001ND
2019-12-10Q1979535001ND
2020-03-10Q2009550001ND
2020-05-28Q2021176001ND
2020-09-14Q2036316001ND
2020-12-03Q2048418003ND
2021-03-09Q2106059003ND
2021-06-08Q2114826003ND
2021-08-25Q21231920020.788 ppm
2021-11-15Q21317410010.372 ppm
2022-03-10Q2208391001ND
2022-05-25Q2215192001ND
2022-09-08Q22267870010.379 ppm
2022-11-29Q2235393001ND
2023-05-17Q2318613001ND
2023-08-24Q2336187001ND
2023-11-30Q2351069001ND