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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Commerce-city, Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

171

Samples

0

Samples exceeding legal limit (MCL)

156

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.90 ppm16160.175 ppm - 3.11 ppm
20152.11 ppm4746ND - 3.00 ppm
20161.80 ppm1716ND - 2.34 ppm
20171.80 ppm4643ND - 3.90 ppm
20181.78 ppm1817ND - 2.76 ppm
20191.09 ppm2718ND - 2.20 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
2014-01-065701-014-09301.95 ppm
2014-02-035701-014-10101.96 ppm
2014-02-105701-005-10051.85 ppm
2014-03-045701-014-15181.24 ppm
2014-05-065701-005-09041.85 ppm
2014-05-065701-014-09071.93 ppm
2014-06-025701-008-12400.175 ppm
2014-06-025701-014-11502.01 ppm
2014-07-145701-014-09422.08 ppm
2014-08-065701-005-09142.01 ppm
2014-08-065701-014-09162.09 ppm
2014-09-085701-014-09102.09 ppm
2014-10-215701-014-09492.00 ppm
2014-11-185701-005-08503.11 ppm
2014-11-245701-014-09092.25 ppm
2014-12-095701-014-09101.86 ppm
2015-01-125810-014-14001.74 ppm
2015-02-095701-005-10592.27 ppm
2015-02-095701-014-10582.36 ppm
2015-03-025701-014-09301.81 ppm
2015-04-075701-014-11401.80 ppm
2015-05-045701-014-15321.82 ppm
2015-05-125810-005-12211.60 ppm
2015-06-015701-014-10171.84 ppm
2015-06-025810-008-1240ND
2015-07-085701-014-13411.88 ppm
2015-08-045701-005-13321.88 ppm
2015-08-045701-014-13311.94 ppm
2015-09-155701-014-09031.92 ppm
2015-10-135701-014-13551.85 ppm
2015-11-035701-005-09161.77 ppm
2015-11-035701-014-09171.85 ppm
2015-12-075701-014-09261.97 ppm
2015-12-219590-005-11453.00 ppm
2015-12-219590-005-11452.94 ppm
2015-12-219590-014-11471.80 ppm
2015-12-219590-014-11471.83 ppm
2015-12-219590-014-14451.90 ppm
2015-12-219590-014-14451.87 ppm
2015-12-229590-005-08562.80 ppm
2015-12-229590-005-08562.71 ppm
2015-12-229590-014-08572.20 ppm
2015-12-229590-014-08572.17 ppm
2015-12-229590-014-12492.20 ppm
2015-12-229590-014-12492.24 ppm
2015-12-239590-005-09082.70 ppm
2015-12-239590-005-09082.71 ppm
2015-12-239590-014-09092.40 ppm
2015-12-239590-014-09092.48 ppm
2015-12-239590-014-15352.40 ppm
2015-12-239590-014-15352.48 ppm
2015-12-249590-005-09352.40 ppm
2015-12-249590-005-09352.48 ppm
2015-12-249590-014-09382.40 ppm
2015-12-249590-014-09382.48 ppm
2015-12-249590-014-12352.40 ppm
2015-12-249590-014-12352.48 ppm
2015-12-289590-005-10012.00 ppm
2015-12-289590-005-10012.01 ppm
2015-12-289590-014-10001.80 ppm
2015-12-289590-014-10001.83 ppm
2015-12-289590-014-14151.80 ppm
2015-12-289590-014-14151.83 ppm
2016-01-055701-014-12401.72 ppm
2016-02-025701-005-08591.54 ppm
2016-02-025701-014-08581.69 ppm
2016-03-085701-014-08461.83 ppm
2016-04-065701-014-14371.64 ppm
2016-05-025701-005-10121.68 ppm
2016-05-025701-014-10101.78 ppm
2016-06-065701-008-1102ND
2016-06-065701-014-09541.94 ppm
2016-07-195701-014-09312.01 ppm
2016-08-015701-005-11102.04 ppm
2016-08-015701-014-11122.10 ppm
2016-09-225701-014-15452.11 ppm
2016-10-115701-014-14302.34 ppm
2016-11-085701-005-11512.27 ppm
2016-11-085701-014-11522.30 ppm
2016-12-065701-014-09261.67 ppm
2017-01-105701-014-12191.29 ppm
2017-02-075701-005-09260.935 ppm
2017-02-075701-014-09271.03 ppm
2017-03-075701-014-10391.25 ppm
2017-04-055701-014-15031.54 ppm
2017-05-019590-005-10342.30 ppm
2017-05-019590-014-1033ND
2017-05-019590-014-1303ND
2017-05-029590-005-09152.60 ppm
2017-05-029590-014-09160.800 ppm
2017-05-029590-014-13400.990 ppm
2017-05-039590-005-08262.50 ppm
2017-05-039590-014-08271.40 ppm
2017-05-039590-014-14011.50 ppm
2017-05-049590-005-09182.30 ppm
2017-05-049590-014-09201.60 ppm
2017-05-049590-014-13401.60 ppm
2017-05-059590-005-08432.10 ppm
2017-05-059590-014-08451.80 ppm
2017-05-059590-014-14001.90 ppm
2017-05-235701-005-14051.75 ppm
2017-05-235701-014-14061.74 ppm
2017-06-135701-008-1444ND
2017-09-019590-005-11152.20 ppm
2017-09-019590-013-11203.90 ppm
2017-09-019590-014-11252.80 ppm
2017-09-079590-005-10282.30 ppm
2017-09-079590-014-10342.10 ppm
2017-09-079590-014-15461.60 ppm
2017-09-089590-005-10002.30 ppm
2017-09-089590-014-10021.30 ppm
2017-09-089590-014-13351.30 ppm
2017-09-119590-005-09502.30 ppm
2017-09-119590-014-09512.30 ppm
2017-09-119590-014-13042.30 ppm
2017-09-129590-005-09022.30 ppm
2017-09-129590-014-09032.30 ppm
2017-09-125701-014-09042.27 ppm
2017-09-129590-014-13112.30 ppm
2017-09-139590-005-08432.20 ppm
2017-09-139590-014-08442.30 ppm
2017-09-139590-014-14062.30 ppm
2017-10-035701-014-15071.89 ppm
2017-11-075701-005-08431.73 ppm
2017-11-075701-014-08441.74 ppm
2017-12-055701-014-08501.75 ppm
2018-01-095701-014-09051.70 ppm
2018-02-055701-005-15091.68 ppm
2018-02-055701-014-15081.68 ppm
2018-03-065701-014-08491.71 ppm
2018-04-025701-014-09371.70 ppm
2018-05-095701-005-08322.76 ppm
2018-05-095701-014-08332.38 ppm
2018-05-155810-005-10411.60 ppm
2018-06-055701-014-08481.71 ppm
2018-06-135810-008-1426ND
2018-07-105701-014-09081.86 ppm
2018-08-075701-005-09401.91 ppm
2018-08-075701-014-09541.96 ppm
2018-09-115701-014-09161.95 ppm
2018-10-025701-014-09201.81 ppm
2018-11-065701-005-08511.87 ppm
2018-11-065701-014-08521.95 ppm
2018-12-185701-014-09231.84 ppm
2019-01-085701-014-10031.88 ppm
2019-01-169590-014-16002.20 ppm
2019-02-055701-005-09581.57 ppm
2019-02-055701-014-10121.65 ppm
2019-03-055701-014-12001.30 ppm
2019-04-029590-005-1402ND
2019-04-029590-013-1348ND
2019-04-029590-014-1353ND
2019-04-099590-005-1355ND
2019-04-099590-013-1358ND
2019-04-099590-014-1403ND
2019-04-159590-005-14450.650 ppm
2019-04-159590-013-1448ND
2019-04-159590-014-1452ND
2019-04-242385-014-15030.800 ppm
2019-05-075701-005-09041.58 ppm
2019-05-075701-014-09141.41 ppm
2019-06-105701-008-1005ND
2019-06-105701-014-09531.85 ppm
2019-07-165701-014-09411.73 ppm
2019-08-065701-005-09051.74 ppm
2019-08-065701-014-09101.85 ppm
2019-09-105701-014-08571.84 ppm
2019-10-075701-014-11491.88 ppm
2019-11-045701-005-11361.84 ppm
2019-11-045701-014-11431.92 ppm
2019-12-095701-014-09191.75 ppm