Nitrate
Whippoorwill Bay Subdivision
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 | 0.0410 ppm | 2 | 2 | 0.0350 ppm - 0.0470 ppm |
2015 | 0.0443 ppm | 2 | 2 | 0.0360 ppm - 0.0525 ppm |
2016 | ND | 2 | 0 | ND |
2017 | 0.0459 ppm | 2 | 2 | 0.0455 ppm - 0.0462 ppm |
2018 | 0.0268 ppm | 2 | 2 | 0.0199 ppm - 0.0336 ppm |
2019 | 0.0369 ppm | 2 | 2 | 0.0349 ppm - 0.0389 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 |
---|---|---|
2014-10-15 | Q1452616001 | 0.0470 ppm |
2014-10-15 | Q1452616002 | 0.0350 ppm |
2015-09-23 | Q1537353008 | 0.0360 ppm |
2015-09-23 | Q1537353009 | 0.0525 ppm |
2016-11-17 | Q1650512002 | ND |
2016-11-17 | Q1650512001 | ND |
2017-09-20 | Q1745420007 | 0.0462 ppm |
2017-09-20 | Q1745420008 | 0.0455 ppm |
2018-10-02 | Q1839345012 | 0.0199 ppm |
2018-10-02 | Q1839345004 | 0.0336 ppm |
2019-08-06 | Q1951295009 | 0.0389 ppm |
2019-08-06 | Q1951295008 | 0.0349 ppm |