Nitrate
American Fork 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.
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 | 0.920 ppm | 5 | 5 | 0.600 ppm - 1.20 ppm |
| 2015 | 0.686 ppm | 7 | 7 | 0.200 ppm - 1.30 ppm |
| 2016 | 0.833 ppm | 6 | 6 | 0.400 ppm - 1.50 ppm |
| 2017 | 0.755 ppm | 6 | 6 | 0.192 ppm - 1.32 ppm |
| 2018 | 0.640 ppm | 6 | 5 | ND - 1.22 ppm |
| 2019 | 0.682 ppm | 6 | 6 | 0.129 ppm - 1.49 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 |
|---|---|
| 2014-07-22 | 0.600 ppm |
| 2014-07-22 | 0.600 ppm |
| 2014-07-22 | 1.10 ppm |
| 2014-07-22 | 1.20 ppm |
| 2014-07-22 | 1.10 ppm |
| 2015-08-17 | 0.500 ppm |
| 2015-08-17 | 1.30 ppm |
| 2015-08-17 | 0.900 ppm |
| 2015-08-17 | 1.20 ppm |
| 2015-08-17 | 0.500 ppm |
| 2015-08-17 | 0.200 ppm |
| 2015-11-23 | 0.200 ppm |
| 2016-05-17 | 1.40 ppm |
| 2016-05-17 | 1.50 ppm |
| 2016-06-16 | 0.400 ppm |
| 2016-06-16 | 0.500 ppm |
| 2016-06-16 | 0.400 ppm |
| 2016-06-16 | 0.800 ppm |
| 2017-09-11 | 1.02 ppm |
| 2017-09-11 | 0.192 ppm |
| 2017-09-11 | 0.677 ppm |
| 2017-09-11 | 1.32 ppm |
| 2017-09-11 | 0.999 ppm |
| 2017-09-11 | 0.328 ppm |
| 2018-08-23 | 1.22 ppm |
| 2018-08-23 | 0.316 ppm |
| 2018-08-23 | 0.779 ppm |
| 2018-08-23 | 1.15 ppm |
| 2018-08-23 | 0.381 ppm |
| 2018-08-23 | ND |
| 2019-04-23 | 1.03 ppm |
| 2019-04-23 | 1.49 ppm |
| 2019-05-16 | 0.635 ppm |
| 2019-06-20 | 0.367 ppm |
| 2019-07-11 | 0.438 ppm |
| 2019-08-26 | 0.129 ppm |