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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

City of Sugar Land

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

17

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0380 ppm54ND - 0.0800 ppm
20130.0317 ppm64ND - 0.1000 ppm
2014ND10ND
20150.766 ppm550.0200 ppm - 1.84 ppm
2016N/A00N/A
2017N/A00N/A

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

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
2012-03-22AB84868ND
2013-01-24AC085960.0700 ppm
2013-01-24AC086030.01000 ppm
2013-01-24AC08595ND
2013-01-24AC086050.1000 ppm
2013-01-24AC086020.01000 ppm
2013-01-24AC08601ND
2014-03-26AC48249ND
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