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EWG's Tap Water Database — 2019 UPDATE

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Nitrite

Epcor Water - Sun City

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.

 

77

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0105 ppm192ND - 0.1000 ppm
2013ND150ND
2014ND110ND
2015ND100ND
2016ND110ND
2017ND110ND

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
2012-02-132020900-01IND
2012-02-132020899-01IND
2012-02-202021443-02IND
2012-02-202021443-01IND
2012-05-302052175-01ND
2012-05-302052175-01IND
2012-05-302052175-02ND
2012-05-302052175-02IND
2012-05-302052175-040.1000 ppm
2012-05-302052175-04IND
2012-05-302052175-050.1000 ppm
2012-05-302052175-05IND
2012-05-302052175-06ND
2012-05-302052175-06IND
2012-05-302052175-07IND
2012-05-302052175-08IND
2012-05-302052175-09IND
2012-07-242071894-01ND
2012-07-242071894-02ND
2013-01-153011149-01ND
2013-03-203031438-01IND
2013-03-203031437-01IND
2013-05-083050653-03ND
2013-05-083050653-01ND
2013-05-083050653-02ND
2013-05-083050653-04ND
2013-05-083050653-05ND
2013-05-083050653-06ND
2013-05-083050653-07ND
2013-05-083050653-08ND
2013-08-053080292-02ND
2013-08-053080292-01ND
2013-10-243102152-02ND
2013-10-243102152-01ND
2014-01-274012054-02ND
2014-02-044020236-01ND
2014-02-0440020236-02ND
2014-04-144041211-04ND
2014-04-144041211-03ND
2014-04-144041211-02ND
2014-04-144041211-01ND
2014-04-144041210-01ND
2014-04-294042383-01ND
2014-07-294072455-01ND
2014-11-054110397-01ND
2015-01-075010480-01ND
2015-04-215041911-03ND
2015-04-215041911-01ND
2015-04-215041911-02ND
2015-04-215041911-04ND
2015-04-215041911-05ND
2015-04-275042341-01ND
2015-06-025060272-01IND
2015-07-295072657-02ND
2015-10-145101658-02ND
2016-01-256012026-01ND
2016-01-276012277-01ND
2016-04-226041982-04ND
2016-04-226041982-01ND
2016-04-226041982-02ND
2016-04-226041982-03ND
2016-05-126051199-01ND
2016-05-246051991-01ND
2016-06-086060732-01IND
2016-08-126081234-01IND
2016-10-216102001-03ND
2017-02-087020793-02ND
2017-02-177021702-01ND
2017-04-217042103-05ND
2017-04-217042103-04ND
2017-04-217042103-03ND
2017-04-217042103-02ND
2017-04-217042103-01ND
2017-04-217042102-01ND
2017-06-097060926-01ND
2017-08-027080257-01ND
2017-10-317102906-01ND