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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

City of Garden Grove

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

 

117

Samples

0

Samples exceeding legal limit (MCL)

115

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.91 ppm2019ND - 6.74 ppm
20134.06 ppm2019ND - 6.42 ppm
20144.41 ppm23230.459 ppm - 8.36 ppm
20153.86 ppm18180.483 ppm - 6.35 ppm
20163.77 ppm14141.90 ppm - 4.43 ppm
20173.61 ppm22222.02 ppm - 4.98 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2012-01-114417-009-08153.43 ppm
2012-01-114417-011-10351.83 ppm
2012-01-114417-012-08353.75 ppm
2012-01-114417-014-07304.00 ppm
2012-01-114417-016-11153.25 ppm
2012-01-114417-039-09555.49 ppm
2012-01-114417-061-09404.59 ppm
2012-04-044417-006-0935ND
2012-04-044417-014-07303.95 ppm
2012-04-044417-016-11353.28 ppm
2012-04-044417-018-11053.50 ppm
2012-04-044417-019-09053.05 ppm
2012-04-044417-061-08354.27 ppm
2012-06-274417-013-14404.26 ppm
2012-07-254417-014-07254.04 ppm
2012-07-254417-039-12506.74 ppm
2012-07-254417-061-09304.24 ppm
2012-10-174417-014-07204.05 ppm
2012-10-174417-039-09455.71 ppm
2012-10-174417-061-09304.73 ppm
2013-01-094417-009-08403.61 ppm
2013-01-094417-011-10101.76 ppm
2013-01-094417-012-09053.64 ppm
2013-01-094417-014-08003.93 ppm
2013-01-094417-016-11503.37 ppm
2013-01-094417-039-11306.33 ppm
2013-01-094417-061-09454.70 ppm
2013-04-034417-006-1400ND
2013-04-034417-013-14352.20 ppm
2013-04-034417-014-07053.70 ppm
2013-04-034417-018-11003.37 ppm
2013-04-034417-019-07554.16 ppm
2013-04-034417-039-09556.42 ppm
2013-04-034417-061-09354.48 ppm
2013-07-244417-014-07003.98 ppm
2013-07-244417-039-09556.37 ppm
2013-07-244417-061-09354.65 ppm
2013-10-164417-014-07154.02 ppm
2013-10-164417-061-09254.25 ppm
2013-12-114417-039-10006.35 ppm
2014-01-084417-009-08353.52 ppm
2014-01-084417-011-11002.03 ppm
2014-01-084417-012-09553.28 ppm
2014-01-084417-014-07403.80 ppm
2014-01-084417-016-12203.48 ppm
2014-01-084417-019-08104.22 ppm
2014-01-084417-039-10408.36 ppm
2014-01-084417-061-09404.56 ppm
2014-01-224417-039-10006.51 ppm
2014-01-224417-039-10106.51 ppm
2014-04-024417-006-14000.459 ppm
2014-04-024417-013-14403.95 ppm
2014-04-024417-014-07004.01 ppm
2014-04-024417-018-11052.91 ppm
2014-04-024417-019-07404.42 ppm
2014-04-024417-039-10156.60 ppm
2014-04-024417-061-09004.43 ppm
2014-07-234417-014-07004.16 ppm
2014-07-234417-061-08254.22 ppm
2014-09-304417-039-10005.85 ppm
2014-10-154417-014-07003.84 ppm
2014-10-154417-039-09406.37 ppm
2014-10-154417-061-08303.89 ppm
2015-01-074417-009-08153.48 ppm
2015-01-074417-011-10101.76 ppm
2015-01-074417-012-09003.61 ppm
2015-01-074417-014-09203.84 ppm
2015-01-074417-016-11303.64 ppm
2015-01-074417-039-10356.35 ppm
2015-03-044417-061-08354.17 ppm
2015-04-014417-006-14000.483 ppm
2015-04-014417-013-14403.38 ppm
2015-04-014417-014-09254.02 ppm
2015-04-014417-016-11403.80 ppm
2015-04-014417-018-11003.64 ppm
2015-04-014417-019-07304.33 ppm
2015-04-014417-039-10005.05 ppm
2015-07-224417-014-09203.91 ppm
2015-07-224417-039-09404.27 ppm
2015-10-144417-014-09153.84 ppm
2015-10-144417-039-09405.99 ppm
2016-01-064417-009-08003.52 ppm
2016-01-064417-011-10051.90 ppm
2016-01-064417-012-08453.73 ppm
2016-01-064417-013-11504.11 ppm
2016-01-064417-014-09203.89 ppm
2016-01-064417-019-07354.38 ppm
2016-04-274417-013-11504.00 ppm
2016-04-274417-013-12003.98 ppm
2016-04-274417-014-09203.87 ppm
2016-04-274417-039-09504.43 ppm
2016-07-204417-014-09303.78 ppm
2016-07-204417-039-09503.95 ppm
2016-10-124417-014-10003.55 ppm
2016-10-124417-039-09403.72 ppm
2017-02-014417-009-08203.34 ppm
2017-02-014417-012-09153.60 ppm
2017-02-014417-013-11504.06 ppm
2017-02-014417-014-09353.74 ppm
2017-02-014417-016-11103.68 ppm
2017-02-014417-018-10453.73 ppm
2017-02-014417-019-07152.98 ppm
2017-02-014417-039-10004.35 ppm
2017-02-014417-061-08553.95 ppm
2017-03-014417-011-10202.46 ppm
2017-03-014417-018-10503.74 ppm
2017-03-014417-018-10553.69 ppm
2017-04-264417-011-10202.02 ppm
2017-04-264417-011-10252.04 ppm
2017-04-264417-013-12003.82 ppm
2017-04-264417-014-09253.69 ppm
2017-04-264417-016-11203.71 ppm
2017-04-264417-039-09554.03 ppm
2017-07-194417-014-09253.75 ppm
2017-07-194417-039-09454.31 ppm
2017-10-114417-014-09203.85 ppm
2017-10-114417-039-07204.98 ppm