EWG's Tap Water Database — 2019 UPDATE



City of Sugar Land

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.





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20120.0317 ppm64ND - 0.0800 ppm
20130.519 ppm86ND - 2.56 ppm
20140.733 ppm76ND - 1.98 ppm
20150.877 ppm76ND - 2.31 ppm
20160.633 ppm660.01000 ppm - 1.40 ppm
20170.685 ppm660.01000 ppm - 2.42 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
2012-03-22AB848690.0800 ppm
2012-03-22AB848650.01000 ppm
2012-03-22AB848660.0800 ppm
2012-03-22AB848670.0200 ppm
2013-01-24AC086050.1000 ppm
2013-01-24AC086020.01000 ppm
2013-01-24AC086030.01000 ppm
2013-01-24AC085960.0700 ppm
2013-12-03AC363901.40 ppm
2013-12-30AC382762.56 ppm
2014-02-11AC421131.98 ppm
2014-03-26AC482710.110 ppm
2014-03-26AC482721.52 ppm
2014-03-26AC482750.0200 ppm
2014-03-26AC482670.01000 ppm
2014-03-26AC482741.49 ppm
2015-01-22AC772792.31 ppm
2015-04-01AC868941.52 ppm
2015-04-01AC868910.0200 ppm
2015-04-01AC868900.0500 ppm
2015-04-01AC868931.84 ppm
2015-04-01AC868920.400 ppm
2016-02-02AD213180.01000 ppm
2016-02-02AD213481.40 ppm
2016-02-02AD213200.01000 ppm
2016-02-02AD213211.02 ppm
2016-02-02AD213220.0200 ppm
2016-02-02AD213191.34 ppm
2017-01-04AD628972.42 ppm
2017-03-22AD762220.0200 ppm
2017-03-22AD762210.01000 ppm
2017-03-22AD762250.850 ppm
2017-03-22AD762180.01000 ppm
2017-04-03AD779490.800 ppm