Know Your Environment. Protect Your Health.

Nitrate

Fairview Water District

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

 

20

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
20202.84 ppm32ND - 6.14 ppm
20212.42 ppm64ND - 4.33 ppm
20221.18 ppm63ND - 3.37 ppm
20230.777 ppm31ND - 2.33 ppm

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL): 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2018-09-17NI80916701ND
2019-12-26II91220001ND
2020-11-04NI01104601ND
2020-11-04NI011046026.14 ppm
2020-11-04NI011046032.37 ppm
2021-03-30NI103214014.10 ppm
2021-06-28NI106395014.33 ppm
2021-09-28NI109331013.45 ppm
2021-12-29NI11226201ND
2021-12-29NI112262022.63 ppm
2021-12-29NI11226203ND
2022-03-31NI204002011.30 ppm
2022-06-28NI206478013.37 ppm
2022-09-29NI20943201ND
2022-12-20NI21219603ND
2022-12-20NI21219607ND
2022-12-20NI212196112.42 ppm
2023-03-28NI30325101ND
2023-12-26NI31222702ND
2023-12-26NI312227012.33 ppm