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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Port Washington WD

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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178

Samples

1

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND80ND
2015ND80ND
2016ND210ND
2017ND480ND
2018ND460ND
20190.0383 ppm471ND - 1.80 ppm

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
2014-04-071404520-003-PRIND
2014-04-071404520-008-PRIND
2014-04-071404520-001-PRIND
2014-04-071404520-005-PRIND
2014-04-071404520-006-PRIND
2014-04-141404A14-008-PRIND
2014-04-141404A14-004-PRIND
2014-04-141404A14-007-PRIND
2015-04-061504353-006-PRIND
2015-04-061504351-002-PRIND
2015-04-061504351-003-PRIND
2015-04-061504351-001-PRIND
2015-04-131504912-001-PRIND
2015-04-131504912-006-PRIND
2015-04-131504912-005-PRIND
2015-04-221504H15-002-PRIND
2016-04-041604282-002-PRIND
2016-04-041604281-002-PRIND
2016-04-041604285-002-PRIND
2016-04-041604285-002-POCSND
2016-04-111604997-002-PRIND
2016-04-111604990-002-PRIND
2016-05-021605093-002-PRIND
2016-05-021605104-001-PRIND
2016-05-091605753-001-PRIND
2016-05-231605L28-001-PRIND
2016-10-03701055015-POCSND
2016-10-03701055018ND
2016-10-03701055017ND
2016-10-12701866001-POCSND
2016-10-12701870001-POCSND
2016-11-07703912002ND
2016-11-07703912003ND
2016-11-14704466002-POCSND
2016-11-14704466003-POCSND
2016-12-05706016001-POCSND
2016-12-05706016002ND
2017-01-09708614005ND
2017-01-09708614004ND
2017-01-17709252008-POCSND
2017-01-307010124001-POCSND
2017-02-067010655006-POCSND
2017-02-067010655007-POCSND
2017-02-137011187003ND
2017-02-137011187002ND
2017-02-13701183001-POCSND
2017-03-067012712007ND
2017-03-067012712008ND
2017-04-037014743006-PRIND
2017-04-037014743009ND
2017-04-037014743005-PRIND
2017-04-037014743004-PRIND
2017-04-037014743008ND
2017-04-107015386002-PRIND
2017-04-137015766001-PRIND
2017-05-017017344001-PRIND
2017-05-017017344002-PRIND
2017-05-087018068002-PRIND
2017-05-087018068001-PRIND
2017-05-307019827002ND
2017-05-307019827003ND
2017-06-127021104009ND
2017-06-127021104008ND
2017-07-037023076005ND
2017-07-037023076004ND
2017-07-107023605008ND
2017-07-102912267ND
2017-07-107023605005-POCSND
2017-08-077026415002ND
2017-08-077026415003ND
2017-08-077026415006ND
2017-08-077026415004ND
2017-08-077026415005ND
2017-09-057028837003ND
2017-10-027031575001ND
2017-10-107032410002ND
2017-10-107032400002ND
2017-10-10703400003ND
2017-11-067034946002ND
2017-11-067034946003ND
2017-11-137035574001ND
2017-11-137035577001ND
2017-11-137035576001ND
2017-12-047037089002ND
2017-12-047037089003ND
2018-01-087039795001ND
2018-01-167040518003ND
2018-01-167040518002ND
2018-02-057042003001ND
2018-02-057042006001ND
2018-02-057042005001ND
2018-02-127042662003ND
2018-02-127042662002ND
2018-03-127045062003ND
2018-03-127045062002ND
2018-04-037046952001-PRIND
2018-04-037046947002ND
2018-04-097047717003ND
2018-04-097047715003-PRIND
2018-04-097047717002ND
2018-04-177048617002-PRIND
2018-05-017050071001-SECND
2018-05-017050068001ND
2018-05-077050721002ND
2018-05-077050717001ND
2018-05-077050721003ND
2018-05-077050719001ND
2018-06-057053698002ND
2018-06-057053698003ND
2018-07-027056883002ND
2018-07-027056883003ND
2018-07-107057562001ND
2018-08-147061475003-NITND
2018-08-147061475002ND
2018-08-147061475007ND
2018-08-147061475002-NITND
2018-08-147061475003ND
2018-09-107064199002ND
2018-09-107064199003ND
2018-10-017066393011ND
2018-10-097067296010ND
2018-10-097067296012ND
2018-10-157068008003ND
2018-10-157068008002ND
2018-11-057070053001ND
2018-11-147071064001ND
2018-11-147071059001ND
2018-11-147071054001ND
2018-11-147071064002ND
2018-12-177074163007ND
2018-12-177074163008ND
2019-01-077075760002ND
2019-01-147076494002ND
2019-01-147076492004ND
2019-01-147076494003ND
2019-02-047078267002ND
2019-02-0470782670011.80 ppm
2019-02-047078267003ND
2019-02-047078268002ND
2019-02-047078268003ND
2019-04-117085526005-SECND
2019-04-117085526009-SECND
2019-04-127085703002ND
2019-04-127085703003ND
2019-04-127085694008-SECND
2019-04-257087268001-SECND
2019-05-177089996001-PRIND
2019-05-207090159001-PRIND
2019-05-227090504002ND
2019-05-227090503001-PRIND
2019-05-227090504003ND
2019-05-227090503002-PRIND
2019-06-127093300003ND
2019-06-127093300002ND
2019-07-157097517002ND
2019-07-157097514003ND
2019-07-157097517003ND
2019-07-227098451005ND
2019-07-297099249002ND
2019-08-057099944002ND
2019-08-057099944003ND
2019-08-1270100931002ND
2019-08-2070102057001ND
2019-08-2070102057002ND
2019-09-0970104210002ND
2019-09-0970104210003ND
2019-10-1670108636002ND
2019-10-1670108636003ND
2019-10-1670108637007ND
2019-10-2170109179002ND
2019-10-2570109763003ND
2019-11-0470110567002ND
2019-11-0470110557001ND
2019-11-0470110567001ND
2019-11-1270111554005ND
2019-11-1270111554006ND
2019-12-2370116327003ND
2019-12-2370116327002ND