Nitrate
Deerfield Resort Water System
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.591 ppm | 9 | 9 | 0.191 ppm - 1.08 ppm |
| 2015 | 0.623 ppm | 9 | 9 | 0.153 ppm - 1.27 ppm |
| 2016 | 0.558 ppm | 9 | 9 | 0.230 ppm - 1.18 ppm |
| 2017 | 0.745 ppm | 9 | 9 | 0.283 ppm - 1.43 ppm |
| 2018 | 0.692 ppm | 9 | 9 | 0.250 ppm - 1.30 ppm |
| 2019 | 0.660 ppm | 8 | 8 | 0.388 ppm - 0.932 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 |
|---|---|
| 2014-12-17 | 0.607 ppm |
| 2014-12-17 | 0.809 ppm |
| 2014-12-17 | 0.517 ppm |
| 2014-12-17 | 1.04 ppm |
| 2014-12-17 | 0.335 ppm |
| 2014-12-17 | 0.340 ppm |
| 2014-12-17 | 0.191 ppm |
| 2014-12-17 | 1.08 ppm |
| 2014-12-17 | 0.399 ppm |
| 2015-12-29 | 1.19 ppm |
| 2015-12-29 | 1.19 ppm |
| 2015-12-29 | 0.199 ppm |
| 2015-12-29 | 0.153 ppm |
| 2015-12-29 | 0.317 ppm |
| 2015-12-29 | 1.27 ppm |
| 2015-12-29 | 0.429 ppm |
| 2015-12-29 | 0.504 ppm |
| 2015-12-29 | 0.355 ppm |
| 2016-12-25 | 0.804 ppm |
| 2016-12-25 | 0.238 ppm |
| 2016-12-25 | 0.230 ppm |
| 2016-12-25 | 0.282 ppm |
| 2016-12-25 | 0.433 ppm |
| 2016-12-25 | 1.18 ppm |
| 2016-12-25 | 0.583 ppm |
| 2016-12-25 | 0.320 ppm |
| 2016-12-25 | 0.955 ppm |
| 2017-12-25 | 0.576 ppm |
| 2017-12-25 | 1.26 ppm |
| 2017-12-25 | 0.364 ppm |
| 2017-12-25 | 0.353 ppm |
| 2017-12-25 | 1.43 ppm |
| 2017-12-25 | 0.520 ppm |
| 2017-12-25 | 1.35 ppm |
| 2017-12-25 | 0.566 ppm |
| 2017-12-25 | 0.283 ppm |
| 2018-12-26 | 0.580 ppm |
| 2018-12-26 | 0.625 ppm |
| 2018-12-26 | 0.922 ppm |
| 2018-12-26 | 1.30 ppm |
| 2018-12-26 | 0.516 ppm |
| 2018-12-26 | 0.250 ppm |
| 2018-12-26 | 1.26 ppm |
| 2018-12-26 | 0.391 ppm |
| 2018-12-26 | 0.382 ppm |
| 2019-12-11 | 0.932 ppm |
| 2019-12-11 | 0.932 ppm |
| 2019-12-11 | 0.932 ppm |
| 2019-12-11 | 0.932 ppm |
| 2019-12-11 | 0.388 ppm |
| 2019-12-11 | 0.388 ppm |
| 2019-12-11 | 0.388 ppm |
| 2019-12-11 | 0.388 ppm |