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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

East Cherry Creek Valley Water and Sanitation 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.

 

72

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.189 ppm148ND - 0.750 ppm
20130.236 ppm148ND - 0.800 ppm
20140.286 ppm148ND - 1.000 ppm
20150.289 ppm94ND - 1.20 ppm
20160.282 ppm115ND - 1.20 ppm
20170.430 ppm105ND - 1.60 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 Result
2012-04-12ND
2012-04-120.200 ppm
2012-04-13ND
2012-04-190.1000 ppm
2012-04-23ND
2012-04-260.1000 ppm
2012-04-26ND
2012-05-040.200 ppm
2012-05-10ND
2012-05-170.1000 ppm
2012-05-17ND
2012-05-250.700 ppm
2012-07-130.500 ppm
2012-10-250.750 ppm
2013-06-050.600 ppm
2013-07-170.800 ppm
2013-07-24ND
2013-07-240.1000 ppm
2013-07-240.500 ppm
2013-07-240.300 ppm
2013-07-24ND
2013-07-24ND
2013-07-240.1000 ppm
2013-07-240.1000 ppm
2013-08-22ND
2013-08-22ND
2013-11-140.800 ppm
2013-12-05ND
2014-02-210.400 ppm
2014-05-190.800 ppm
2014-08-080.600 ppm
2014-08-140.200 ppm
2014-08-181.000 ppm
2014-08-19ND
2014-08-19ND
2014-08-210.500 ppm
2014-08-25ND
2014-08-250.1000 ppm
2014-08-25ND
2014-08-25ND
2014-08-29ND
2014-11-190.400 ppm
2015-01-160.500 ppm
2015-02-030.700 ppm
2015-04-27ND
2015-04-27ND
2015-04-27ND
2015-04-27ND
2015-04-27ND
2015-08-140.200 ppm
2015-09-291.20 ppm
2016-03-080.800 ppm
2016-04-11ND
2016-04-11ND
2016-04-111.20 ppm
2016-06-030.700 ppm
2016-08-03ND
2016-08-03ND
2016-08-030.1000 ppm
2016-08-25ND
2016-08-31ND
2016-09-010.300 ppm
2017-02-161.000 ppm
2017-02-160.900 ppm
2017-04-26ND
2017-04-26ND
2017-06-160.1000 ppm
2017-06-160.700 ppm
2017-06-201.60 ppm
2017-06-22ND
2017-06-22ND
2017-07-19ND