Nitrate

Grantsville City

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	0.800 ppm	5	5	0.600 ppm - 1.000 ppm
2015	N/A	0	0	N/A
2016	0.920 ppm	10	10	0.600 ppm - 1.50 ppm
2017	0.955 ppm	5	5	0.546 ppm - 1.58 ppm
2018	0.839 ppm	5	5	0.542 ppm - 0.998 ppm
2019	0.948 ppm	4	4	0.519 ppm - 1.47 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
2014-11-19	0.800 ppm
2014-11-19	0.600 ppm
2014-11-19	0.700 ppm
2014-11-19	1.000 ppm
2014-11-19	0.900 ppm
2016-01-06	0.800 ppm
2016-01-06	1.000 ppm
2016-01-06	0.600 ppm
2016-01-06	0.900 ppm
2016-01-06	0.900 ppm
2016-04-27	1.000 ppm
2016-04-27	1.000 ppm
2016-04-27	0.900 ppm
2016-06-15	0.600 ppm
2016-06-15	1.50 ppm
2017-12-13	1.58 ppm
2017-12-13	0.892 ppm
2017-12-13	0.885 ppm
2017-12-14	0.546 ppm
2017-12-14	0.875 ppm
2018-11-15	0.922 ppm
2018-11-15	0.998 ppm
2018-11-15	0.832 ppm
2018-11-15	0.542 ppm
2018-11-15	0.903 ppm
2019-12-11	0.920 ppm
2019-12-11	1.47 ppm
2019-12-11	0.880 ppm
2019-12-11	0.519 ppm