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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Seaford Water Department

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

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228

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND380ND
2015ND380ND
2016ND380ND
2017ND370ND
2018ND380ND
2019ND390ND

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2014-01-07S309074ND
2014-01-07S309086ND
2014-01-27S309091ND
2014-02-03S309092ND
2014-02-03S309093ND
2014-03-13S309102ND
2014-03-13S309103ND
2014-03-18S553844ND
2014-03-25S309108ND
2014-04-07S309112ND
2014-04-07S309113ND
2014-04-07S309114ND
2014-05-01S309126ND
2014-05-01S309127ND
2014-05-01S309128ND
2014-06-05S309132ND
2014-06-05S309133ND
2014-06-05S309134ND
2014-07-01S309147ND
2014-07-01S309148ND
2014-07-01S309149ND
2014-08-05S309157ND
2014-08-05S309158ND
2014-08-28S285536ND
2014-09-09S309166ND
2014-09-09S309167ND
2014-09-09S309168ND
2014-10-06S309177ND
2014-10-06S309178ND
2014-10-06S309179ND
2014-11-24S588839ND
2014-11-24S588840ND
2014-11-24S588841ND
2014-12-02S580257ND
2014-12-02S580258ND
2014-12-02S580259ND
2014-12-22S612330ND
2014-12-22S612332ND
2015-01-07S580263ND
2015-01-07S580264ND
2015-01-07S580265ND
2015-02-02S309199ND
2015-02-02S309200ND
2015-02-02S309201ND
2015-03-11S309223ND
2015-03-11S309224ND
2015-03-11S309225ND
2015-03-27S624959ND
2015-04-14S309233ND
2015-04-14S309236ND
2015-04-14S309237ND
2015-05-19S286468ND
2015-05-19S286469ND
2015-05-19S286470ND
2015-06-01S286483ND
2015-06-01S286484ND
2015-06-01S286485ND
2015-07-06S286493ND
2015-07-06S286495ND
2015-08-03S286513ND
2015-08-03S286514ND
2015-08-04S286523ND
2015-09-09S286482ND
2015-09-22S286530ND
2015-09-22S286531ND
2015-10-01S286536ND
2015-10-01S286537ND
2015-10-01S286538ND
2015-11-16S286503ND
2015-11-16S286505ND
2015-11-16S286506ND
2015-12-01S286543ND
2015-12-01S286544ND
2015-12-01S286545ND
2015-12-16S654800ND
2015-12-16S654801ND
2016-01-06S286554ND
2016-01-07S286559ND
2016-02-03S286563ND
2016-02-03S286564ND
2016-02-03S286565ND
2016-03-08S286573ND
2016-03-08S286574ND
2016-03-08S286575ND
2016-04-05S286588ND
2016-04-05S286589ND
2016-04-05S286590ND
2016-05-04S285809ND
2016-05-04S285810ND
2016-05-04S285811ND
2016-06-02S579836ND
2016-06-02S579837ND
2016-06-02S579838ND
2016-07-12S285796ND
2016-07-12S285797ND
2016-07-12S285798ND
2016-07-13S676610ND
2016-07-15S676664ND
2016-07-15S676666ND
2016-08-02S285781ND
2016-08-02S285782ND
2016-08-02S285783ND
2016-09-12S285749ND
2016-09-12S285750ND
2016-09-12S285751ND
2016-10-05S285733ND
2016-10-05S285735ND
2016-10-10S285718ND
2016-11-02S285743ND
2016-11-02S285744ND
2016-11-14S285762ND
2016-12-06S285723ND
2016-12-06S285724ND
2016-12-08S285732ND
2017-01-04S285703ND
2017-01-04S285704ND
2017-01-11S285712ND
2017-02-15S285688ND
2017-02-15S285691ND
2017-02-15S285694ND
2017-02-16S684686ND
2017-02-16S684687ND
2017-03-13S285693ND
2017-03-13S285695ND
2017-03-13S285696ND
2017-03-28S723997ND
2017-04-12S285617ND
2017-04-12S285618ND
2017-04-12S285619ND
2017-05-03S285763ND
2017-05-03S285764ND
2017-05-03S285765ND
2017-06-05S580148ND
2017-06-05S580149ND
2017-06-05S580150ND
2017-07-20S580166ND
2017-07-20S580167ND
2017-07-20S580168ND
2017-08-02S580169ND
2017-08-02S580170ND
2017-08-02S580171ND
2017-09-07S580179ND
2017-09-07S580180ND
2017-09-07S580181ND
2017-10-02S580193ND
2017-10-04S580195ND
2017-11-01S580200ND
2017-11-01S580201ND
2017-11-01S580202ND
2017-12-07S580210ND
2017-12-07S580211ND
2018-01-16S580219ND
2018-01-16S580220ND
2018-02-12S580228ND
2018-02-12S580229ND
2018-02-22S580241ND
2018-03-07S580242ND
2018-03-07S580243ND
2018-03-15S580248ND
2018-03-23S783990ND
2018-04-02S580252ND
2018-04-02S580268ND
2018-04-02S580269ND
2018-05-09S580280ND
2018-05-09S580281ND
2018-05-09S580282ND
2018-06-04S580287ND
2018-06-04S580288ND
2018-06-04S580289ND
2018-07-18S580306ND
2018-07-18S580307ND
2018-07-18S580308ND
2018-08-01S580320ND
2018-08-01S580321ND
2018-08-01S580322ND
2018-09-10S580332ND
2018-09-10S580336ND
2018-09-12S580337ND
2018-10-03S580343ND
2018-10-03S580344ND
2018-10-03S580345ND
2018-11-07S580353ND
2018-11-07S580354ND
2018-11-07S580355ND
2018-12-10S580363ND
2018-12-10S580364ND
2018-12-10S580365ND
2018-12-21S855197ND
2018-12-21S855198ND
2019-01-03S580373ND
2019-01-03S580374ND
2019-01-03S580375ND
2019-02-04S587771ND
2019-02-04S587772ND
2019-02-04S587773ND
2019-03-04S580383ND
2019-03-04S580384ND
2019-03-04S580385ND
2019-04-02S587783ND
2019-04-02S587784ND
2019-04-02S587785ND
2019-05-06S587798ND
2019-05-06S587799ND
2019-05-06S587800ND
2019-06-03S587804ND
2019-06-03S587805ND
2019-06-25S587813ND
2019-07-08S587814ND
2019-07-08S587815ND
2019-07-08S587816ND
2019-08-01S587828ND
2019-08-01S587829ND
2019-08-01S587830ND
2019-09-11S587838ND
2019-09-11S587839ND
2019-09-11S587840ND
2019-10-01S587848ND
2019-10-01S587849ND
2019-10-01S587850ND
2019-11-04S587858ND
2019-11-04S587859ND
2019-11-20S587868ND
2019-11-20S927378ND
2019-11-20S927393ND
2019-11-20S927414ND
2019-12-05S587873ND
2019-12-05S587874ND
2019-12-19S587885ND