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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Greenville 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0280 ppm21ND - 0.0560 ppm
20130.271 ppm220.0320 ppm - 0.510 ppm
20140.0530 ppm220.0340 ppm - 0.0720 ppm
20150.0465 ppm220.0290 ppm - 0.0640 ppm
20160.0435 ppm220.0210 ppm - 0.0660 ppm
20170.0270 ppm21ND - 0.0540 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
2012-01-03AD00645ND
2012-01-03AD006470.0560 ppm
2013-01-10AD182090.0320 ppm
2013-01-10AD182190.510 ppm
2014-01-27AD349580.0340 ppm
2014-01-27AD349620.0720 ppm
2015-02-03AD510250.0290 ppm
2015-02-03AD510220.0640 ppm
2016-01-27AD697750.0660 ppm
2016-01-27AD697730.0210 ppm
2017-02-07AD894890.0540 ppm
2017-02-07AD89487ND