Nitrate
Woodbury Cons. WD
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 | 0.300 ppm | 2 | 2 | 0.300 ppm |
2015 | 0.525 ppm | 2 | 2 | 0.439 ppm - 0.611 ppm |
2016 | 0.229 ppm | 3 | 2 | ND - 0.504 ppm |
2017 | 0.370 ppm | 4 | 4 | 0.127 ppm - 0.639 ppm |
2018 | 0.432 ppm | 3 | 3 | 0.167 ppm - 0.728 ppm |
2019 | 0.550 ppm | 3 | 3 | 0.271 ppm - 0.709 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 |
---|---|---|
2014-10-02 | 420-82974-1(NA-N | 0.300 ppm |
2014-10-02 | 420-82974-2(NA-N | 0.300 ppm |
2015-05-27 | 05271537-26(PRIS | 0.611 ppm |
2015-05-27 | 05271537-25(PRIS | 0.439 ppm |
2016-12-07 | 12071686-4(PRIS) | ND |
2016-12-07 | 12071686-2(NITRA | 0.183 ppm |
2016-12-07 | 12071686-3(NITRA | 0.504 ppm |
2017-06-28 | 06281741-2(NITRA | 0.127 ppm |
2017-09-26 | 09271750-5(PRIS- | 0.232 ppm |
2017-11-16 | 11171701-6(NITRA | 0.480 ppm |
2017-11-16 | 11171701-7(NITRA | 0.639 ppm |
2018-09-19 | 09191865-8PRIS | 0.402 ppm |
2018-09-19 | 09191865-15-SOD- | 0.167 ppm |
2018-09-19 | 09191865-9PRIS | 0.728 ppm |
2019-09-13 | 09131905-6POC-NA | 0.271 ppm |
2019-09-13 | 09131905-4POC-NA | 0.671 ppm |
2019-09-13 | 09131905-5POC-NA | 0.709 ppm |