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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

City of Emporia

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.380 ppm220.210 ppm - 0.550 ppm
20130.530 ppm220.450 ppm - 0.610 ppm
2014ND10ND
20150.340 ppm220.130 ppm - 0.550 ppm
2016ND20ND
20170.525 ppm220.180 ppm - 0.870 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
2012-03-14576480BT0.550 ppm
2012-04-30578189WS0.210 ppm
2013-03-25593866BT0.610 ppm
2013-04-24595101WS0.450 ppm
2014-04-22100811ND
2015-03-313028660.130 ppm
2015-05-213358280.550 ppm
2016-03-28516102ND
2016-04-19529774ND
2017-03-227277470.180 ppm
2017-04-247464550.870 ppm