Nitrate
Hurricane 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.783 ppm | 4 | 4 | 0.300 ppm - 1.14 ppm |
2015 | 0.730 ppm | 4 | 4 | 0.300 ppm - 1.07 ppm |
2016 | 0.740 ppm | 5 | 5 | 0.300 ppm - 1.20 ppm |
2017 | 0.564 ppm | 4 | 4 | 0.158 ppm - 0.937 ppm |
2018 | 0.609 ppm | 4 | 4 | 0.142 ppm - 0.972 ppm |
2019 | 0.620 ppm | 5 | 5 | 0.247 ppm - 0.965 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 |
---|---|
2014-02-19 | 0.300 ppm |
2014-02-19 | 1.10 ppm |
2014-08-08 | 1.14 ppm |
2014-08-08 | 0.591 ppm |
2015-02-11 | 0.551 ppm |
2015-02-11 | 1.07 ppm |
2015-08-25 | 1.000 ppm |
2015-08-25 | 0.300 ppm |
2016-02-18 | 0.600 ppm |
2016-02-18 | 0.600 ppm |
2016-04-26 | 1.000 ppm |
2016-07-12 | 0.300 ppm |
2016-07-12 | 1.20 ppm |
2017-07-20 | 0.937 ppm |
2017-07-20 | 0.508 ppm |
2017-10-23 | 0.158 ppm |
2017-10-23 | 0.653 ppm |
2018-06-20 | 0.468 ppm |
2018-07-19 | 0.853 ppm |
2018-08-28 | 0.972 ppm |
2018-08-28 | 0.142 ppm |
2019-07-17 | 0.402 ppm |
2019-07-17 | 0.247 ppm |
2019-07-17 | 0.942 ppm |
2019-07-24 | 0.965 ppm |
2019-07-24 | 0.544 ppm |