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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Tract 349 Mutual Water Co.

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.215 ppm21ND - 0.429 ppm
2013ND20ND
20140.305 ppm21ND - 0.610 ppm
20150.441 ppm21ND - 0.881 ppm
20160.240 ppm21ND - 0.480 ppm
20170.590 ppm220.540 ppm - 0.640 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
2012-04-242706-002-0900ND
2012-04-242706-003-08400.429 ppm
2013-04-162706-002-0820ND
2013-04-232706-003-1145ND
2014-04-169588-002-1015ND
2014-04-239588-003-09250.610 ppm
2015-04-249588-002-0940ND
2015-04-249588-003-09250.881 ppm
2016-05-139588-003-09250.480 ppm
2016-05-279588-002-0915ND
2017-05-059588-003-09050.540 ppm
2017-06-239588-002-09300.640 ppm