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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Waukesha Water Utility

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0290 ppm73ND - 0.0800 ppm
20130.0103 ppm71ND - 0.0720 ppm
2014N/A00N/A
20150.0416 ppm770.0250 ppm - 0.0690 ppm
20160.01000 ppm61ND - 0.0600 ppm
2017N/A00N/A

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
2012-02-29652681ND
2012-02-29652680ND
2012-02-29652682ND
2012-03-206550580.0590 ppm
2012-03-20655056ND
2012-05-226640350.0640 ppm
2012-05-226640320.0800 ppm
2013-02-20706223ND
2013-02-20706221ND
2013-02-20706219ND
2013-02-25706685ND
2013-02-25706684ND
2013-02-25706682ND
2013-08-277401500.0720 ppm
2015-03-108478520.0320 ppm
2015-03-108478560.0350 ppm
2015-03-108478500.0690 ppm
2015-03-118478580.0250 ppm
2015-09-298863790.0300 ppm
2015-09-298863780.0470 ppm
2015-09-298863810.0530 ppm
2016-03-031603-112ND
2016-03-031603-113ND
2016-03-031603-115ND
2016-03-031603-1140.0600 ppm
2016-03-101603-317ND
2016-03-101603-316ND