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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.300 ppm	3	2	ND - 0.600 ppm
2015	0.183 ppm	6	3	ND - 0.600 ppm
2016	0.225 ppm	4	2	ND - 0.600 ppm
2017	0.269 ppm	4	3	ND - 0.482 ppm
2018	0.204 ppm	4	2	ND - 0.514 ppm
2019	0.282 ppm	4	3	ND - 0.566 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

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
2014-08-19	ND
2014-08-19	0.300 ppm
2014-08-19	0.600 ppm
2015-06-10	ND
2015-08-19	ND
2015-08-19	0.300 ppm
2015-08-25	0.600 ppm
2015-08-25	0.200 ppm
2015-09-09	ND
2016-04-27	0.600 ppm
2016-04-27	ND
2016-08-10	ND
2016-09-20	0.300 ppm
2017-07-12	ND
2017-07-12	0.162 ppm
2017-07-12	0.482 ppm
2017-07-12	0.431 ppm
2018-06-05	ND
2018-07-18	0.303 ppm
2018-07-18	ND
2018-07-18	0.514 ppm
2019-06-27	0.113 ppm
2019-06-27	0.451 ppm
2019-06-27	ND
2019-06-27	0.566 ppm