Nitrate
Elysian Fields Water Supply Corporation
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 | 0.0378 ppm | 2 | 2 | 0.0225 ppm - 0.0530 ppm |
2015 | 0.0430 ppm | 3 | 3 | 0.0165 ppm - 0.0860 ppm |
2016 | 0.121 ppm | 2 | 2 | 0.0245 ppm - 0.217 ppm |
2017 | 0.0205 ppm | 2 | 2 | 0.0190 ppm - 0.0219 ppm |
2018 | 0.00765 ppm | 2 | 1 | ND - 0.0153 ppm |
2019 | 0.0104 ppm | 2 | 1 | ND - 0.0208 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 | Lab ID | Result |
---|---|---|
2014-07-09 | Q1426904001 | 0.0225 ppm |
2014-07-09 | Q1426904009 | 0.0530 ppm |
2015-07-06 | Q1525243010 | 0.0265 ppm |
2015-07-06 | Q1525205001 | 0.0860 ppm |
2015-07-06 | Q1525205002 | 0.0165 ppm |
2016-10-25 | Q1645359004 | 0.0245 ppm |
2016-11-14 | Q1649299003 | 0.217 ppm |
2017-09-07 | Q1742201001 | 0.0190 ppm |
2017-12-11 | Q1764920006 | 0.0219 ppm |
2018-08-02 | Q1830802006 | 0.0153 ppm |
2018-08-02 | Q1830802012 | ND |
2019-05-22 | Q1927730006 | ND |
2019-05-22 | Q1927730007 | 0.0208 ppm |