EWG's Tap Water Database — 2019 UPDATE



Jupiter 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 exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20120.0380 ppm110.0380 ppm
20130.0500 ppm110.0500 ppm
20140.113 ppm330.1000 ppm - 0.130 ppm
20150.133 ppm110.133 ppm
20160.141 ppm110.141 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
2012-03-130.0380 ppm
2013-03-060.0500 ppm
2014-02-050.1000 ppm
2014-02-050.110 ppm
2014-05-130.130 ppm
2015-04-020.133 ppm
2016-03-050.141 ppm