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EWG's Tap Water Database — 2021 UPDATE

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Nitrate and nitrite

Sanford Water District

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND140ND
20150.1000 ppm121ND - 1.20 ppm
2016ND200ND
20170.0800 ppm201ND - 1.60 ppm
2018ND140ND
20190.0765 ppm171ND - 1.30 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
2014-03-12ND
2014-03-12ND
2014-03-12ND
2014-06-02ND
2014-06-02ND
2014-06-03ND
2014-06-03ND
2014-06-03ND
2014-06-04ND
2014-06-04ND
2014-06-04ND
2014-06-04ND
2014-06-05ND
2014-06-05ND
2015-03-11215030265ND
2015-03-11215030267ND
2015-03-11215030270ND
2015-04-29215040773.01ND
2015-04-29215040773.03ND
2015-04-29215050773.02ND
2015-07-15215070453ND
2015-07-15215070451ND
2015-11-18215110433ND
2015-11-182151104271.20 ppm
2015-11-18215110429ND
2015-11-18215110431ND
2016-03-29216030771ND
2016-03-29216030773ND
2016-03-30216030800ND
2016-03-30216030802ND
2016-05-25216051005ND
2016-06-15216060625ND
2016-06-15216060627ND
2016-06-15216060623ND
2016-06-20216060816ND
2016-06-20216060819ND
2016-08-24216080961AND
2016-08-29216081191.01AND
2016-08-29216081191.02AND
2016-08-30216081238.01AND
2016-08-30216081238.02AND
2016-11-09216110291ND
2016-11-09216110293ND
2016-11-16216110517ND
2016-11-16216110519ND
2016-12-15216120417ND
2017-03-21217030572.01ND
2017-03-21217030570.01ND
2017-03-22217030619.01ND
2017-03-22217030621.01ND
2017-05-30217051121ND
2017-05-30217051124.01ND
2017-05-30217051142.01ND
2017-05-30217051145.01ND
2017-05-31217051228.01ND
2017-05-31217051225.011.60 ppm
2017-05-31217051222ND
2017-06-14217060608.01ND
2017-06-14217060611.01ND
2017-08-23217081091.01ND
2017-08-29217081318ND
2017-08-29217081322.01ND
2017-08-29217081326ND
2017-08-30217081399ND
2017-08-30217081403.01ND
2017-08-30217081407ND
2018-06-13218060561.01ND
2018-06-13218060560.01ND
2018-06-20218060836.01ND
2018-06-20218060838.01ND
2018-06-20218060834.01ND
2018-09-18218090599.01ND
2018-09-18218090599.02ND
2018-09-18218090599.03ND
2018-09-18218090599.04ND
2018-09-19218090649.05ND
2018-09-19218090649.04ND
2018-09-19218090649.03ND
2018-09-19218090649.01ND
2018-09-19218090649.02ND
2019-05-22219050985.01ND
2019-05-22219050983.01ND
2019-05-22219050981.01ND
2019-05-22219050987.01ND
2019-05-22219050989.01ND
2019-08-14219080601.01ND
2019-08-14219080603.01ND
2019-08-14219080599.01ND
2019-08-22219080954.01ND
2019-08-26219081045.01ND
2019-12-17219120553.01ND
2019-12-17219120556.01ND
2019-12-17219120551.01ND
2019-12-17219120559.01ND
2019-12-18219120615.01ND
2019-12-18219120613.01ND
2019-12-18219120611.011.30 ppm