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EWG's Tap Water Database — 2021 UPDATE

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Nitrite

Carson City Public Works

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.

MORE ABOUT THIS CONTAMINANT

 

182

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND350ND
2015ND380ND
20160.00690 ppm291ND - 0.200 ppm
2017ND380ND
2018ND220ND
2019ND200ND

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
2014-01-14140012ND
2014-01-28140027ND
2014-02-24140048ND
2014-03-26201403270180ND
2014-04-29140138ND
2014-04-29140137ND
2014-05-21140166ND
2014-05-27201405280593-NND
2014-06-19140211ND
2014-06-24201406250107ND
2014-06-24201406250106ND
2014-06-24201406250103ND
2014-06-24201406250104ND
2014-06-24201406250105ND
2014-06-24201406250108ND
2014-06-24201406250102ND
2014-06-25201406270015ND
2014-06-25201406270017ND
2014-06-25201406270018ND
2014-06-25201406270016ND
2014-06-25201406270012ND
2014-06-25201406270013ND
2014-06-25201406270011ND
2014-06-25201406270014ND
2014-07-01201407020381ND
2014-07-01201407020382ND
2014-07-01201407020380ND
2014-07-08201407090717ND
2014-07-30201407310264ND
2014-07-301407796-001ND
2014-07-301407797-001ND
2014-08-201408542-001ND
2014-09-04201409050275ND
2014-09-231409696-001ND
2014-10-291410796-001ND
2015-03-26201503270323-NND
2015-04-211504596-001-NND
2015-05-27150527-001ND
2015-06-241506697-001ND
2015-06-29201506300124-IOCND
2015-06-29201506300177-IOCND
2015-06-301507049-001ND
2015-07-14201507150299ND
2015-07-15201507160441ND
2015-07-15201507160327ND
2015-07-15201507160255ND
2015-07-21201507220179ND
2015-07-27201507280085ND
2015-07-27201507280084ND
2015-07-27201507280083ND
2015-07-27201507280086ND
2015-07-29201507300215ND
2015-07-29201507300214ND
2015-07-29201507300213ND
2015-07-29201507300212ND
2015-07-29201507300216ND
2015-07-29201507300209ND
2015-08-10201508110263ND
2015-08-121508331-001ND
2015-08-13201508140259ND
2015-08-13201508140254ND
2015-09-15201509160733ND
2015-09-15201509160729ND
2015-09-15201509160734ND
2015-09-15201509020134ND
2015-09-231509655-001ND
2015-09-23201509240291ND
2015-09-231509654-001ND
2015-10-211510593-001ND
2015-10-211510592-001ND
2015-11-181511475-001ND
2015-12-091512296-001ND
2015-12-16201512170135ND
2016-01-201601433-001ND
2016-04-201604522-001ND
2016-06-15160615-001ND
2016-06-22201606230265ND
2016-06-22201606230271ND
2016-06-23160623-007ND
2016-06-28201606290224ND
2016-06-28201606290218ND
2016-06-28201606290223ND
2016-06-28201606290222ND
2016-06-28201606290220ND
2016-06-28201606290219ND
2016-06-28201606290221ND
2016-07-13160713-007ND
2016-08-10201608120041ND
2016-08-10201608120037ND
2016-08-10201608120040ND
2016-08-10201608120039ND
2016-08-10201608120038ND
2016-08-16201608170231ND
2016-08-16201608170233ND
2016-08-16201608170232ND
2016-09-07160907_005ND
2016-09-21160921-007ND
2016-09-211609658-002ND
2016-10-191610613-001ND
2016-11-09161109_0060.200 ppm
2016-12-221612713-001ND
2016-12-281612810-001ND
2017-01-311701686-001ND
2017-02-15170215-004ND
2017-03-21170321-020ND
2017-04-26170426_001ND
2017-05-15201705160867ND
2017-05-15201705160571ND
2017-05-15201705160632ND
2017-05-15201705160541ND
2017-05-16201705170491ND
2017-05-16201705170304ND
2017-05-16201705170782ND
2017-05-171705493-001ND
2017-05-23201705240962ND
2017-05-23201705240769ND
2017-05-25201705260591ND
2017-05-25201705260596ND
2017-06-141706415-001ND
2017-06-141706414-001ND
2017-07-05201707060865ND
2017-07-19170719-15ND
2017-07-20201707210331ND
2017-07-20201707210328ND
2017-07-25201707260765ND
2017-07-25201707260764ND
2017-07-26201707260490ND
2017-07-27201707280313ND
2017-08-01201708020897ND
2017-08-01201708020922ND
2017-08-01201708021373ND
2017-08-01201708021436ND
2017-08-23170823_002ND
2017-08-28201708290217ND
2017-09-06170906_009ND
2017-09-27170927-003ND
2017-10-251710819-001ND
2017-11-201711685-001ND
2017-12-131712436-001ND
2017-12-211712678-001ND
2018-03-211803667-001ND
2018-03-281803879-001ND
2018-04-2518041332-01ND
2018-04-251804812-001ND
2018-04-26201804280204ND
2018-05-03201805040323AND
2018-05-03201805040327ND
2018-05-03201805040433ND
2018-05-15201805160828ND
2018-05-15201805161039ND
2018-05-301805894-001ND
2018-05-30201805310461ND
2018-05-30201805310480ND
2018-05-30201805310569ND
2018-05-311805910-001ND
2018-05-31201806010522ND
2018-06-201806655-001ND
2018-07-181807631-001ND
2018-07-23201807240376ND
2018-08-221808748-001ND
2018-09-1218090436-001ND
2018-09-1818090654-002ND
2019-02-2019020481-001ND
2019-04-2419040743-001ND
2019-05-09201905110146ND
2019-05-2219050682-001ND
2019-06-1919060645-001ND
2019-06-24201906250202AND
2019-07-0219070092-001ND
2019-07-0219070092-002ND
2019-07-2419070940-001ND
2019-08-21201908220455ND
2019-08-22201908230324ND
2019-09-24201909250291ND
2019-09-25201909260166ND
2019-09-26190926-002ND
2019-09-26190926-003ND
2019-10-30191030-004ND
2019-11-20191120-001ND
2019-12-23201912260084ND
2019-12-3019120820-001ND
2019-12-3019120825-001ND