Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Nitrate

City of Royse City

NOTE: City of Royse City purchases water from North Texas Municipal Water District Wylie Water Treatment Plant which is required to test for nitrate. Sample information shown below was taken by North Texas Municipal Water District Wylie Water Treatment Plant.

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.435 ppm110.435 ppm
20130.700 ppm110.700 ppm
20140.263 ppm110.263 ppm
20150.902 ppm110.902 ppm
20160.728 ppm110.728 ppm
20170.709 ppm110.709 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

NOTE: City of Royse City purchases water from North Texas Municipal Water District Wylie Water Treatment Plant which is required to test for nitrate. Sample information shown below was taken by North Texas Municipal Water District Wylie Water Treatment Plant.

Date Lab ID Result
2012-02-0712022480011.04 ppm
2012-06-0612061840020.0800 ppm
2012-06-0612061840010.320 ppm
2013-02-2713029060010.680 ppm
2013-02-2713029060020.750 ppm
2013-02-2713029060030.800 ppm
2013-04-291304A060060.670 ppm
2013-04-291304A060040.620 ppm
2013-04-291304A060020.560 ppm
2014-01-28Q14027510081.39 ppm
2014-01-28Q14027510071.40 ppm
2014-01-28Q14027510061.45 ppm
2014-01-28Q14027510051.38 ppm
2014-01-28Q14027510041.39 ppm
2014-01-28Q14027510031.42 ppm
2015-05-21Q15188170060.643 ppm
2015-05-21Q15188170050.624 ppm
2015-11-19Q15460940030.446 ppm
2016-05-02Q16172860030.737 ppm
2016-05-02Q16172860020.571 ppm
2016-05-02Q16172860010.270 ppm
2017-06-22Q17262450040.0931 ppm
2017-06-22Q17262450080.0688 ppm