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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

New York American Water - Merrick

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

 

151

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.00737 ppm192ND - 0.0800 ppm
2015ND220ND
20160.0139 ppm232ND - 0.230 ppm
20170.0147 ppm265ND - 0.110 ppm
20180.0283 ppm3810ND - 0.240 ppm
20190.0180 ppm234ND - 0.220 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
2014-01-151401644-001-PRI0.0600 ppm
2014-05-291405K49-001-PRIND
2014-06-1306A48-002-PRIND
2014-06-131406A48-001-PRIND
2014-07-151407A72-001-PRIND
2014-07-171407C92-010-PRIND
2014-07-171407C92-001-PRIND
2014-07-171407C92-007-PRIND
2014-07-171407C92-004-PRI0.0800 ppm
2014-07-171407C92-003-PRIND
2014-07-171407C92-008-PRIND
2014-07-171407C92-002-PRIND
2014-07-171407C92-006-PRIND
2014-07-171407C92-005-PRIND
2014-07-171407C92-009-PRIND
2014-10-021410205-003-PRIND
2014-10-021410205-002-PRIND
2014-10-021410205-001-PRIND
2014-10-211410D67-001-PRIND
2015-01-161501983-001-PRIND
2015-03-121503879-002-PRIND
2015-03-121503879-003-PRIND
2015-03-121503879-001-PRIND
2015-05-041505145-003-PRIND
2015-05-041505145-001-PRIND
2015-05-041505145-002-PRIND
2015-05-141505A59-001-PRIND
2015-07-281507K32-001 PRIND
2015-07-291507L39-001 PRIND
2015-09-241509J47-007 PRIND
2015-09-241509J47-004 PRIND
2015-09-241509J47-003ND
2015-09-241509J47-001 PRIND
2015-09-241509J47-008 PRIND
2015-09-241509J47-006 PRIND
2015-09-241509J47-002 PRIND
2015-09-241509J47-005 PRIND
2015-09-251509K39-003 PRIND
2015-09-251509K39-002 PRIND
2015-09-251509K39-001 PRIND
2015-09-291509M10-001 PRIND
2016-01-141601989-001 PRIND
2016-01-141601989-002 PRIND
2016-02-221602F57-001 PRIND
2016-03-301603O11-001 PRIND
2016-03-301603O11-002 PRIND
2016-04-111604A41-001 PRIND
2016-04-211604K74-001 PRIND
2016-04-221604L85-001 PRIND
2016-05-201605J46-001 PRIND
2016-06-201606J87-001 PRIND
2016-06-201606J87-002 PRIND
2016-06-221606M26-001 PRIND
2016-09-191609F59-002ND
2016-09-191609F59-001 PRIND
2016-09-221609J08-001 PRI0.0900 ppm
2016-09-221609J08-002 PRIND
2016-09-291609Q55-001 PRIND
2016-09-291609Q55-003 PRIND
2016-09-291609Q55-002 PRIND
2016-11-17704846001 PRIND
2016-11-17704846002 PRI0.230 ppm
2016-11-17704846003 PRIND
2016-11-17704846004 PRIND
2017-09-077029212002-PRIND
2017-09-077029212001-PRIND
2017-09-077029212004-PRI0.110 ppm
2017-09-077029212003-PRIND
2017-09-077029212005-PRIND
2017-09-087029327006-PRIND
2017-09-087029327004-PRIND
2017-09-087029327002-PRIND
2017-09-087029327001-PRIND
2017-09-087029327003-PRIND
2017-09-087029327007-PRIND
2017-09-087029327005-PRIND
2017-09-217030619003-PRIND
2017-09-217030619002-PRIND
2017-09-217030619001-PRIND
2017-09-217030619004-PRIND
2017-09-297031451001-PRIND
2017-10-027031582001-PRI0.0630 ppm
2017-10-027031582002-PRIND
2017-10-117032549001-PRIND
2017-10-117032549002-PRI0.0760 ppm
2017-10-117032549003-PRIND
2017-11-307036878003-PRI0.0590 ppm
2017-11-307036878001-PRIND
2017-11-307036878002-PRI0.0750 ppm
2017-12-127037901001-PRIND
2018-04-097047658001-PRIND
2018-04-127048229003-PRIND
2018-04-127048229006-PRIND
2018-04-127048229005-PRIND
2018-04-127048229004-PRIND
2018-04-127048229002-PRIND
2018-04-127048229001-PRIND
2018-04-177048654001-PRI0.140 ppm
2018-04-177048654002-PRI0.150 ppm
2018-05-047050598045-PRI0.0580 ppm
2018-05-047050598044-PRIND
2018-05-177051921001-PRIND
2018-06-217055721002-PRI0.160 ppm
2018-06-217055721001-PRIND
2018-06-297056752002-PRIND
2018-06-297056752001-PRIND
2018-09-247065692001-PRIND
2018-09-247065692004-PRI0.0660 ppm
2018-09-247065692002-PRIND
2018-09-247065692003-PRIND
2018-10-027066545001-PRIND
2018-10-047066961004-PRIND
2018-10-047066961006-PRIND
2018-10-047066961002-PRIND
2018-10-047066961003-PRIND
2018-10-047066961005-PRIND
2018-10-047066961001-PRI0.0540 ppm
2018-10-157067938001-PRIND
2018-10-157067938002-PRIND
2018-10-187068411001-PRIND
2018-10-187068411002-PRI0.0760 ppm
2018-10-257069103001-PRIND
2018-10-307069513001-PRIND
2018-10-317069513002-PRIND
2018-12-117073526003-PRI0.0650 ppm
2018-12-117073526001-PRI0.240 ppm
2018-12-117073526002-PRI0.0680 ppm
2018-12-187074222001-PRIND
2019-02-087078928002-PRI0.220 ppm
2019-03-297083915002-PRI0.0820 ppm
2019-05-077088507001-SECND
2019-05-077088507002-SECND
2019-05-297091282001-SECND
2019-07-027096080001-PRIND
2019-07-027096080002-PRIND
2019-07-127097310001-PRIND
2019-07-127097310004-PRIND
2019-07-127097310002-PRIND
2019-07-127097310003-PRIND
2019-09-1970105633004-PRIND
2019-09-1970105633002-PRIND
2019-09-1970105633001-PRIND
2019-09-1970105633003-PRIND
2019-10-3070110133003-PRI0.0520 ppm
2019-10-3070110133004-PRI0.0610 ppm
2019-10-3070110133001-PRIND
2019-10-3070110133007-PRIND
2019-10-3070110133002-PRIND
2019-10-3070110133006-PRIND
2019-10-3070110133005-PRIND
2019-11-1570111990002-PRIND