Know Your Environment. Protect Your Health.

Nitrate

Jordanelle Special Service 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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.204 ppm42ND - 0.514 ppm
20190.282 ppm43ND - 0.566 ppm
20200.178 ppm42ND - 0.575 ppm
20210.146 ppm62ND - 0.561 ppm
20220.621 ppm53ND - 2.34 ppm
20230.220 ppm76ND - 0.492 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 Result
2018-06-05ND
2018-07-180.303 ppm
2018-07-18ND
2018-07-180.514 ppm
2019-06-270.113 ppm
2019-06-270.451 ppm
2019-06-27ND
2019-06-270.566 ppm
2020-07-290.575 ppm
2020-07-29ND
2020-08-11ND
2020-08-110.136 ppm
2021-01-19ND
2021-07-130.561 ppm
2021-07-130.318 ppm
2021-07-13ND
2021-07-19ND
2021-09-20ND
2022-05-16ND
2022-06-010.535 ppm
2022-07-192.34 ppm
2022-07-19ND
2022-07-190.227 ppm
2023-05-240.103 ppm
2023-05-240.110 ppm
2023-06-050.440 ppm
2023-07-17ND
2023-07-170.492 ppm
2023-07-170.141 ppm
2023-07-170.256 ppm