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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Granada Mobile Home Court

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.

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
20156.10 ppm331.30 ppm - 8.50 ppm
2016ND40ND
2017ND50ND
2018ND50ND
2019ND60ND

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
2014-12-03S588950ND
2015-07-06S6316468.50 ppm
2015-08-05S6420411.30 ppm
2015-10-05S6428288.50 ppm
2016-03-31S669327ND
2016-04-25S665407ND
2016-09-07S709882ND
2016-10-05S693864ND
2017-01-10S714256ND
2017-04-03S723602ND
2017-08-28S741151ND
2017-09-18S756963ND
2017-12-05S781141ND
2018-02-20S783845ND
2018-05-25S778837ND
2018-08-02S792592ND
2018-08-24S782177ND
2018-11-09S808193ND
2019-01-10S856149ND
2019-01-18S856446ND
2019-04-01S872335ND
2019-07-01S888150ND
2019-08-07S870966ND
2019-10-07S920469ND