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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Clifton Park 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.

MORE ABOUT THIS CONTAMINANT

 

44

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.388 ppm81ND - 3.10 ppm
20150.591 ppm990.167 ppm - 3.13 ppm
20160.451 ppm81ND - 3.61 ppm
20170.398 ppm73ND - 2.68 ppm
20180.229 ppm660.129 ppm - 0.382 ppm
20190.105 ppm65ND - 0.285 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
2014-06-17142892-5896-NITRND
2014-06-17142892-5895-NITRND
2014-06-23143030-6176-NITR3.10 ppm
2014-06-23143030-6178-NITRND
2014-06-23143030-6173-NITRND
2014-06-23143030-6174-NITRND
2014-06-23143030-6177-NITRND
2014-06-23143030-6175-NITRND
2015-06-09C00789501-NITRAT0.240 ppm
2015-06-09C00789502-NITRAT0.210 ppm
2015-06-09C00789801-NITRAT0.167 ppm
2015-06-09C00789903-NITRAT0.244 ppm
2015-06-09C00789902-NITRAT0.282 ppm
2015-06-09C00789901-NITRAT3.13 ppm
2015-06-10C00792501-NITRAT0.371 ppm
2015-06-10C00792502-NITRAT0.303 ppm
2015-06-10C007925-01-NITRA0.371 ppm
2016-06-08160608092-NITRAT3.61 ppm
2016-06-08160608087-NITRATND
2016-06-08160608084-0010NIND
2016-06-08160608088-001-NIND
2016-06-08160608094-NITRATND
2016-06-08160608090-NITRATND
2016-06-08160608095-001-NIND
2016-06-08160608089-001-NIND
2017-06-27170627043-005-NI0.0520 ppm
2017-06-27170627043-NITRATND
2017-06-27170627043-02-SOCND
2017-06-2717062043-6-NITRAND
2017-06-27170627043-04-NITND
2017-06-27170627043-03-NIT2.68 ppm
2017-09-06170907003-NITRAT0.0510 ppm
2018-06-18C036389-03-NITRA0.189 ppm
2018-06-18C036389-04-NITRA0.129 ppm
2018-06-18C036389-01-NITRA0.382 ppm
2018-06-18C036388-01-NITRA0.267 ppm
2018-06-18C036389-02-NITRA0.200 ppm
2018-06-18C036388-02-NITRA0.205 ppm
2019-06-11C045464-06-NITRA0.0406 ppm
2019-06-11C045464-01-NITRA0.169 ppm
2019-06-11C045464-04-NITRAND
2019-06-11C045464-07-NITRA0.285 ppm
2019-06-11C045464-02-NITRA0.0114 ppm
2019-06-11C045464-03-NITRA0.125 ppm