Nitrate
Palm Springs Crest
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 | 0.932 ppm | 4 | 4 | 0.858 ppm - 0.994 ppm |
2015 | N/A | 0 | 0 | N/A |
2016 | 0.855 ppm | 4 | 4 | 0.670 ppm - 1.000 ppm |
2017 | 0.950 ppm | 2 | 2 | 0.900 ppm - 1.000 ppm |
2018 | 1.01 ppm | 2 | 2 | 0.910 ppm - 1.10 ppm |
2019 | 0.970 ppm | 2 | 2 | 0.840 ppm - 1.10 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 |
---|---|---|
2014-01-13 | 3761-001-1027 | 0.858 ppm |
2014-01-13 | 3761-002-1047 | 0.994 ppm |
2014-07-01 | 3761-001-0945 | 0.881 ppm |
2014-07-01 | 3761-002-0910 | 0.994 ppm |
2016-02-24 | 3761-001-1010 | 0.820 ppm |
2016-02-24 | 3761-002-1015 | 1.000 ppm |
2016-09-14 | 3761-001-0839 | 0.670 ppm |
2016-09-14 | 3761-002-0830 | 0.930 ppm |
2017-06-05 | 3761-002-0945 | 1.000 ppm |
2017-06-07 | 3761-001-1328 | 0.900 ppm |
2018-08-13 | 3761-001-0942 | 0.910 ppm |
2018-08-13 | 3761-002-0928 | 1.10 ppm |
2019-11-20 | 3761-001-0834 | 0.840 ppm |
2019-11-20 | 3761-002-0910 | 1.10 ppm |