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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Quint-mar Water Authority

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
20140.0183 ppm660.0140 ppm - 0.0250 ppm
20150.0126 ppm86ND - 0.0230 ppm
2016N/A00N/A
2017N/A00N/A
20180.0165 ppm660.01000 ppm - 0.0220 ppm
20190.0190 ppm770.0120 ppm - 0.0230 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
2014-02-13AA884620.0210 ppm
2014-02-13AA884630.0190 ppm
2014-02-13AA884640.0160 ppm
2014-02-13AA884660.0150 ppm
2014-02-13AA884650.0140 ppm
2014-02-13AA884670.0250 ppm
2015-09-24AB08016ND
2015-09-24AB08105ND
2015-09-24AB080190.0110 ppm
2015-09-24AB080200.0140 ppm
2015-09-24AB080140.0170 ppm
2015-09-24AB080170.0190 ppm
2015-09-24AB080210.0230 ppm
2015-09-24AB080180.0170 ppm
2018-11-15AB318690.0150 ppm
2018-11-15AB318680.01000 ppm
2018-11-15AB318670.0170 ppm
2018-11-15AB318650.0170 ppm
2018-11-15AB318700.0180 ppm
2018-11-15AB318660.0220 ppm
2019-04-17AB342800.0230 ppm
2019-04-17AB342810.0230 ppm
2019-04-17AB342830.0220 ppm
2019-04-17AB342820.0210 ppm
2019-04-17AB342840.0160 ppm
2019-04-17AB342860.0160 ppm
2019-04-17AB342850.0120 ppm