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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

New York American Water - Lynbrook

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

 

274

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.00875 ppm325ND - 0.160 ppm
20150.00344 ppm324ND - 0.0500 ppm
20160.0103 ppm516ND - 0.290 ppm
20170.00767 ppm438ND - 0.0700 ppm
20180.0132 ppm5511ND - 0.140 ppm
20190.00344 ppm618ND - 0.0700 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2014-01-2724474301-PRIND
2014-01-2724476201-PRIND
2014-01-2724476501-SEC0.0300 ppm
2014-02-1924785001-PRIND
2014-02-194785601-PRIND
2014-02-1924783901-PRIND
2014-03-1925025901-PRIND
2014-03-1925024401-PRIND
2014-04-1425192101-PRIND
2014-04-1425193001-PRIND
2014-04-1425193501-PRIND
2014-05-1325667401-SECND
2014-05-1425667901-PRIND
2014-06-1125932701-PRIND
2014-06-1125932401-PRIND
2014-06-131406A17-001-PRIND
2014-07-1426308201-PRIND
2014-07-2126310201-PRIND
2014-07-2126309901-PRI0.0200 ppm
2014-07-2126309401-PRIND
2014-07-2325668201-PRIND
2014-08-2526729001-PRI0.0300 ppm
2014-08-2526730001-PRI0.0400 ppm
2014-08-2526730501-PRIND
2014-09-0326730801-PRI0.160 ppm
2014-09-1026897201-PRIND
2014-09-1026896201-PRIND
2014-09-1726898001-PRIND
2014-09-1726897701-PRIND
2014-10-1627256201-PRIND
2014-11-04275437-PRIND
2014-11-0427544201-PRIND
2015-01-2128012501-PRIND
2015-01-2128011901-PRI0.0300 ppm
2015-01-2928013301-PRIND
2015-01-2928012901-POCSND
2015-02-1228170801-PRI0.0500 ppm
2015-02-2428171101-PRIND
2015-02-2428171401-PRIND
2015-03-1828369301-PRIND
2015-03-1828370101-PRI0.0200 ppm
2015-03-2628370501-PRIND
2015-03-262837030.01000 ppm
2015-04-23281278 PRIND
2015-04-23287137 PRIND
2015-04-2828714101-PRIND
2015-04-2828712901-PRIND
2015-06-18289022 PRIND
2015-06-18289017 PRIND
2015-06-18289012 PRIND
2015-06-23291727 PRIND
2015-06-25291737ND
2015-06-25291735ND
2015-07-211507F36-001 PRIND
2015-07-27296107 PRIND
2015-07-27296101 PRIND
2015-07-29296111 PRIND
2015-07-29296115 PRIND
2015-07-29289025 PRIND
2015-08-131508A78-001 PRIND
2015-08-1929935801ND
2015-08-1929936101 PRIND
2015-11-09306823ND
2015-12-16306826 SECND
2016-01-2131140901ND
2016-01-2131140501 PRIND
2016-02-23313154010.0400 ppm
2016-02-2331316101 PRIND
2016-02-2331316401 PRIND
2016-02-2331315801 PRIND
2016-02-261602J56-002 PRIND
2016-02-261602J56-001 PRIND
2016-03-3031554101 PRIND
2016-03-30315553010.0200 ppm
2016-03-3131555901 PRIND
2016-03-3131555601 PRIND
2016-04-201604J67-001 PRIND
2016-04-211604K35-001 PRIND
2016-04-2831785801 PRIND
2016-04-2831786401 PRIND
2016-05-171605F60-001 PRIND
2016-05-181605G73-001 PRIND
2016-05-201605J08-002 PRIND
2016-05-201605J18-002 PRIND
2016-05-3132044301 PRIND
2016-05-3132044801 PRIND
2016-06-141606D39-001 PRIND
2016-06-1532436301 PRIND
2016-06-1532436601 PRIND
2016-06-2232044501 PRIND
2016-06-281606R55-001 PRIND
2016-06-291606S97-001 SECND
2016-07-2132783801 PRIND
2016-07-2132784401 PRIND
2016-07-2132783201ND
2016-08-311608T21-001 PRIND
2016-08-311608T21-003 PRIND
2016-08-311608T21-004 PRIND
2016-08-3133045301ND
2016-08-311608T21-002ND
2016-08-31330450 PRIND
2016-08-3133044301 PRIND
2016-08-3132784801 PRIND
2016-09-2633323301 PRI0.290 ppm
2016-09-2633045601 PRIND
2016-09-2633321501 PRI0.0600 ppm
2016-09-2633323001ND
2016-09-2633322701 PRIND
2016-10-11701713001 PRI0.0570 ppm
2016-10-11701713002 PRIND
2016-11-1433593101 PRIND
2016-11-1433592501 PRIND
2016-11-29705607005 PRI0.0570 ppm
2016-11-29705607006 PRIND
2016-11-29705607004 PRIND
2017-01-3134388301-PRIND
2017-02-0234389301-PRI0.0400 ppm
2017-02-027010466001-PRIND
2017-03-3034959001-PRI0.0400 ppm
2017-03-3034959601-PRI0.0400 ppm
2017-03-3034959901-PRI0.0200 ppm
2017-03-3034960201-PRI0.0400 ppm
2017-04-077015287001-PRIND
2017-04-1135263801-PRIND
2017-04-1135264501-PRI0.0500 ppm
2017-04-127015680006-PRIND
2017-05-167018812002-PRIND
2017-05-167018812001-PRIND
2017-05-307019868003-PRIND
2017-05-307019868001-PRIND
2017-06-097020949001-PRIND
2017-06-097020949002-PRIND
2017-06-1335952501-PRIND
2017-06-1335951901-PRI0.0700 ppm
2017-07-3136393201-PRIND
2017-07-3136393601-PRIND
2017-07-3136394001-PRIND
2017-07-3136394401-PRIND
2017-08-2436785901-PRIND
2017-08-2436786201-PRIND
2017-08-2436785201-PRIND
2017-08-2436785601-PRIND
2017-09-1437096601-PRIND
2017-09-1437096301-PRIND
2017-09-1437096001-PRIND
2017-09-1437095401-PRIND
2017-09-2035265101-PRIND
2017-09-2035265501-PRIND
2017-09-267031074001-PRIND
2017-12-0738000001-PRI0.0300 ppm
2017-12-0737999101-PRIND
2017-12-1137751301-PRIND
2017-12-1137751001-PRIND
2017-12-1137750701-PRIND
2017-12-1137749901-PRIND
2017-12-227038997003-PRIND
2017-12-287039309005-PRIND
2017-12-297039358002-PRIND
2018-01-167040538002-PRIND
2018-01-3038291401-PRIND
2018-01-3038292601-PRIND
2018-01-3038293001-PRIND
2018-01-3038292001-PRIND
2018-02-067042142001-PRIND
2018-02-1538677701-PRI0.0600 ppm
2018-02-1538678301-PRIND
2018-02-2838678901-PRI0.01000 ppm
2018-02-2838678601-PRI0.0600 ppm
2018-03-027044372001-PRI0.0820 ppm
2018-03-087044798002-PRIND
2018-03-0838909401-PRIND
2018-03-087044798001-PRIND
2018-03-0838910201-PRIND
2018-03-1538910801-PRI0.0300 ppm
2018-03-1538910501-PRIND
2018-03-237046103001-PRIND
2018-04-127048247001-PRIND
2018-04-127048244002-PRIND
2018-04-127048247002-PRIND
2018-04-127048244001-PRIND
2018-04-207049182001-PRIND
2018-04-237049264003-PRIND
2018-04-237049264004-PRIND
2018-04-267049697002-PRI0.0660 ppm
2018-04-267049697001-PRI0.0880 ppm
2018-05-177052007002-PRI0.140 ppm
2018-05-177052007001-PRI0.120 ppm
2018-05-187052192005-PRIND
2018-05-187052192001-PRIND
2018-05-237052609002-PRIND
2018-05-237052609001-PRIND
2018-06-207055601001-PRIND
2018-06-207055601002-PRIND
2018-07-1940328901-PRIND
2018-07-1940328101-PRIND
2018-07-1940329701-PRIND
2018-07-3140330501-PRIND
2018-07-3139946301-PRIND
2018-07-3139946701-PRIND
2018-08-2040695601-PRIND
2018-08-2040695201-PRIND
2018-08-2040695401-PRIND
2018-08-207062104002-PRIND
2018-09-217065602001-PRND
2018-09-217065602002-PRIND
2018-10-1141552601-PRI0.0300 ppm
2018-10-1141164801-PRIND
2018-10-1141552101-PRI0.0400 ppm
2018-10-2942042901-PRIND
2018-10-2942042701-PRIND
2018-10-3142043101-PRIND
2018-12-0342043301-PRIND
2018-12-2042304301-PRIND
2019-02-2142955101-PRIND
2019-02-2142954901-PRIND
2019-02-2142954801-PRIND
2019-02-2142955001-PRIND
2019-03-0643350901-PRI0.0700 ppm
2019-03-0643350801-PRIND
2019-03-0643350601-PRIND
2019-03-0643350701-PRI0.0300 ppm
2019-03-1242603601-PRIND
2019-03-1242601801-PRIND
2019-03-1242603001-PRIND
2019-03-1242602401-PRIND
2019-03-2542304701-PRIND
2019-03-2542304501-PRIND
2019-03-2542304901-PRI0.0200 ppm
2019-03-277083592001-SECND
2019-03-277083592002-SECND
2019-04-017084047001-PRIND
2019-04-017084047002-PRIND
2019-04-127085688001-PRIND
2019-04-177086197002-PRIND
2019-04-177086203002-PRIND
2019-04-177086232002-PRIND
2019-04-247087084002-PRIND
2019-04-2943355501-PRI0.01000 ppm
2019-04-2943355801ND
2019-04-2943355601ND
2019-04-2943355701ND
2019-05-017087810002-PRIND
2019-05-017087810003-PRIND
2019-05-017087810001-PRIND
2019-05-207090154001-PRIND
2019-05-207090154002-PRIND
2019-06-047091936002-PRIND
2019-06-057092201002-SECND
2019-06-057092201001-SECND
2019-06-1143362301ND
2019-06-1343358701ND
2019-06-1343358401-PRIND
2019-07-1143366801-PRIND
2019-07-1143366901-PRIND
2019-07-1143366701-PRIND
2019-07-1143367001-PRI0.0200 ppm
2019-08-0970100741002-PRIND
2019-08-0970100741001-PRIND
2019-09-1946310201-PRIND
2019-09-2346310101-PRIND
2019-09-2346310301-PRIND
2019-10-0346310001-PRIND
2019-10-0470107403001-PRIND
2019-10-0746963201-PRIND
2019-10-3146963101-PRIND
2019-11-0570110723001ND
2019-11-1346963001-PRIND
2019-11-13469633001-PRIND
2019-11-1847292501-PRIND
2019-12-0947292401-PRIND
2019-12-1647292601-PRI0.01000 ppm
2019-12-1647292301-PRI0.0300 ppm
2019-12-1847625501-PRI0.0200 ppm
2019-12-1947625401-PRIND