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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Kingston Water Department

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

34

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.15 ppm75ND - 2.60 ppm
20131.00 ppm770.110 ppm - 2.00 ppm
20140.903 ppm770.140 ppm - 1.90 ppm
20150.911 ppm76ND - 1.80 ppm
20160.893 ppm660.200 ppm - 1.73 ppm
20170.935 ppm660.140 ppm - 2.35 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
2012-04-27ND
2012-04-27ND
2012-04-270.350 ppm
2012-04-272.60 ppm
2012-04-271.80 ppm
2012-04-271.70 ppm
2012-04-271.60 ppm
2013-05-220.110 ppm
2013-05-220.350 ppm
2013-05-222.00 ppm
2013-05-221.90 ppm
2013-05-221.20 ppm
2013-05-220.270 ppm
2013-06-051.20 ppm
2014-05-230.140 ppm
2014-05-230.470 ppm
2014-05-231.90 ppm
2014-05-231.000 ppm
2014-05-231.50 ppm
2014-05-231.000 ppm
2014-05-230.310 ppm
2015-05-070.150 ppm
2015-05-07ND
2015-05-071.80 ppm
2015-05-071.10 ppm
2015-05-071.80 ppm
2015-05-071.30 ppm
2015-05-070.230 ppm
2016-05-030.340 ppm
2016-05-031.64 ppm
2016-05-031.73 ppm
2016-05-030.200 ppm
2016-05-030.300 ppm
2016-05-031.15 ppm
2017-06-010.350 ppm
2017-06-010.990 ppm
2017-06-012.35 ppm
2017-06-011.54 ppm
2017-06-010.240 ppm
2017-06-010.140 ppm