Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Nitrate

Town of Highland Park

NOTE: Town of Highland Park purchases water from Dallas County Park Cities Municipal Utility District which is required to test for nitrate. Sample information shown below was taken by Dallas County Park Cities Municipal Utility District.

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.470 ppm110.470 ppm
20130.708 ppm110.708 ppm
20140.796 ppm110.796 ppm
20150.706 ppm110.706 ppm
20160.584 ppm110.584 ppm
20171.24 ppm111.24 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: Town of Highland Park purchases water from Dallas County Park Cities Municipal Utility District which is required to test for nitrate. Sample information shown below was taken by Dallas County Park Cities Municipal Utility District.

Date Lab ID Result
2012-06-1312064950010.600 ppm
2013-03-271303A240011.48 ppm
2013-09-18Q13075380050.880 ppm
2014-05-22Q14176840030.822 ppm
2015-02-02Q15038100031.15 ppm
2016-02-11Q16063970050.621 ppm
2017-01-24Q17032970040.981 ppm