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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Brookfield 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.

MORE ABOUT THIS CONTAMINANT

 

69

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20150.0929 ppm179ND - 0.660 ppm
20160.103 ppm176ND - 0.740 ppm
2017N/A00N/A
20180.120 ppm1714ND - 0.700 ppm
20190.116 ppm184ND - 1.10 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
2015-06-17866535ND
2015-06-17866533ND
2015-06-178665240.660 ppm
2015-06-178665230.610 ppm
2015-06-178665250.110 ppm
2015-06-178665280.0650 ppm
2015-06-178665210.0300 ppm
2015-06-178665290.0260 ppm
2015-06-178665220.0260 ppm
2015-06-17866527ND
2015-06-17866526ND
2015-06-17866530ND
2015-06-17866532ND
2015-06-17866520ND
2015-06-17866534ND
2015-06-178665310.0250 ppm
2015-06-248677910.0270 ppm
2016-08-10938601ND
2016-08-10938597ND
2016-08-109385960.0370 ppm
2016-08-109386110.0500 ppm
2016-08-109386070.120 ppm
2016-08-109386100.140 ppm
2016-08-109386080.660 ppm
2016-08-109386090.740 ppm
2016-08-10938605ND
2016-08-10938602ND
2016-08-10938603ND
2016-08-10938598ND
2016-08-10938604ND
2016-08-10938606ND
2016-08-10938599ND
2016-08-10938600ND
2016-08-11938886ND
2018-04-301052523ND
2018-04-3010525260.700 ppm
2018-04-3010525240.700 ppm
2018-04-3010525250.120 ppm
2018-04-3010525100.0770 ppm
2018-04-3010525110.0710 ppm
2018-04-3010525160.0520 ppm
2018-04-3010525140.0510 ppm
2018-04-3010525120.0510 ppm
2018-04-3010525200.0440 ppm
2018-04-3010525220.0350 ppm
2018-04-3010525130.0350 ppm
2018-04-3010525150.0280 ppm
2018-04-3010525170.0270 ppm
2018-04-301052518ND
2018-04-301052519ND
2018-04-3010525210.0480 ppm
2019-03-111108772ND
2019-03-111108773ND
2019-03-111108776ND
2019-03-111108771ND
2019-03-111108775ND
2019-03-1111087700.0550 ppm
2019-03-1111087630.130 ppm
2019-03-1111087620.810 ppm
2019-03-1111087781.10 ppm
2019-03-111108764ND
2019-03-111108768ND
2019-03-111108777ND
2019-03-111108765ND
2019-03-111108767ND
2019-03-111108774ND
2019-03-111108766ND
2019-03-111108769ND
2019-10-101154413ND