Nitrate
Big Eddy
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 | 0.0403 ppm | 2 | 2 | 0.0385 ppm - 0.0420 ppm |
2015 | 0.0448 ppm | 2 | 2 | 0.0360 ppm - 0.0535 ppm |
2016 | 0.0415 ppm | 2 | 2 | 0.0390 ppm - 0.0440 ppm |
2017 | 0.0468 ppm | 2 | 2 | 0.0355 ppm - 0.0580 ppm |
2018 | 0.0437 ppm | 2 | 2 | 0.0338 ppm - 0.0536 ppm |
2019 | 0.0503 ppm | 2 | 2 | 0.0398 ppm - 0.0608 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 |
---|---|---|
2014-08-06 | Q1434208001 | 0.0385 ppm |
2014-08-06 | Q1434208008 | 0.0420 ppm |
2015-07-28 | Q1529238008 | 0.0535 ppm |
2015-07-28 | Q1529238009 | 0.0360 ppm |
2016-03-24 | Q1612143001 | 0.0440 ppm |
2016-03-24 | Q1612143002 | 0.0390 ppm |
2017-08-30 | Q1739979008 | 0.0355 ppm |
2017-12-04 | Q1762223004 | 0.0580 ppm |
2018-08-01 | Q1830497007 | 0.0536 ppm |
2018-08-01 | Q1830497008 | 0.0338 ppm |
2019-07-16 | Q1945359001 | 0.0608 ppm |
2019-11-06 | Q1975670004 | 0.0398 ppm |