Know Your Environment. Protect Your Health.

Nitrite

Ruth Water District

NOTE: Ruth Water District purchases water from Ely Municipal Water Department which is required to test for nitrite. Sample information shown below was taken by Ely Municipal Water Department.

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND10ND
2021ND30ND
2022ND20ND
2023ND10ND

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

NOTE: Ruth Water District purchases water from Ely Municipal Water Department which is required to test for nitrite. Sample information shown below was taken by Ely Municipal Water Department.

Date Lab ID Result
2018-11-0818110223-002ND
2018-11-0818110223-005ND
2018-11-0818110223-007ND
2019-11-1419110404-002ND
2019-11-1419110404-003ND
2020-09-1020090382-001ND
2021-12-0921120341-001ND
2021-12-0921120341-002ND
2021-12-0921120341-003ND
2022-05-1222050451-002ND
2022-07-0722070169-004ND
2023-05-1023050343-003ND