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EWG's Tap Water Database — 2019 UPDATE

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Nitrate

Glendale 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.

 

483

Samples

0

Samples exceeding legal limit (MCL)

410

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20122.66 ppm139129ND - 5.42 ppm
20132.55 ppm10694ND - 5.42 ppm
20141.75 ppm7446ND - 6.10 ppm
20152.75 ppm9380ND - 7.00 ppm
20162.72 ppm6151ND - 6.10 ppm
20175.24 ppm10104.50 ppm - 5.80 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
2012-01-059590-018-11001.36 ppm
2012-01-059590-075-14003.84 ppm
2012-01-119590-015-08303.16 ppm
2012-01-119590-018-10451.72 ppm
2012-01-119590-075-11204.07 ppm
2012-01-189590-015-08302.71 ppm
2012-01-199590-018-10302.19 ppm
2012-01-199590-075-06053.84 ppm
2012-01-259590-015-08303.16 ppm
2012-01-259590-018-10502.08 ppm
2012-01-259590-075-12103.39 ppm
2012-02-019590-015-08301.63 ppm
2012-02-019590-018-10401.99 ppm
2012-02-089590-015-08302.94 ppm
2012-02-089590-018-10301.92 ppm
2012-02-159590-015-08303.61 ppm
2012-02-159590-018-1005ND
2012-02-219590-020-12504.97 ppm
2012-02-229590-015-07382.48 ppm
2012-02-229590-018-10150.655 ppm
2012-02-289590-075-08154.74 ppm
2012-02-299590-015-0850ND
2012-02-299590-018-10251.87 ppm
2012-02-299590-020-10354.52 ppm
2012-03-059590-020-07304.97 ppm
2012-03-079590-015-08300.452 ppm
2012-03-079590-018-11002.94 ppm
2012-03-129590-020-08404.97 ppm
2012-03-149590-015-08302.71 ppm
2012-03-149590-018-1100ND
2012-03-199590-020-08204.52 ppm
2012-03-219590-015-08151.24 ppm
2012-03-219590-018-11001.81 ppm
2012-03-269590-020-08554.52 ppm
2012-03-289590-015-08303.39 ppm
2012-03-289590-018-10302.71 ppm
2012-04-029590-020-06254.52 ppm
2012-04-049590-015-0835ND
2012-04-049590-018-10302.26 ppm
2012-04-069590-015-11550.836 ppm
2012-04-099590-020-09003.61 ppm
2012-04-109590-015-08252.03 ppm
2012-04-109590-018-10001.94 ppm
2012-04-109590-075-07303.61 ppm
2012-04-189590-015-08302.94 ppm
2012-04-189590-018-10300.655 ppm
2012-04-199590-020-10054.29 ppm
2012-04-249590-020-09153.84 ppm
2012-04-259590-015-07302.15 ppm
2012-04-259590-018-09503.61 ppm
2012-04-309590-020-10273.84 ppm
2012-05-029590-015-12303.16 ppm
2012-05-029590-018-1200ND
2012-05-079590-020-08503.61 ppm
2012-05-099590-015-08303.61 ppm
2012-05-099590-018-11050.655 ppm
2012-05-149590-020-08553.61 ppm
2012-05-169590-015-08101.74 ppm
2012-05-169590-018-10500.723 ppm
2012-05-179590-075-14154.52 ppm
2012-05-229590-020-08224.29 ppm
2012-05-239590-015-08300.452 ppm
2012-05-239590-018-10301.60 ppm
2012-05-299590-020-07554.07 ppm
2012-05-319590-015-0830ND
2012-05-319590-018-11002.94 ppm
2012-06-049590-075-09153.61 ppm
2012-06-069590-015-12252.71 ppm
2012-06-069590-018-11050.520 ppm
2012-06-069590-020-12103.84 ppm
2012-06-129590-020-08454.07 ppm
2012-06-139590-015-08300.474 ppm
2012-06-139590-018-09451.42 ppm
2012-06-209590-015-08301.47 ppm
2012-06-209590-018-10051.58 ppm
2012-06-209590-020-08304.29 ppm
2012-06-279590-015-08252.03 ppm
2012-06-279590-018-10451.40 ppm
2012-06-279590-020-08404.29 ppm
2012-07-039590-018-10450.474 ppm
2012-07-039590-075-13453.84 ppm
2012-07-059590-020-08153.61 ppm
2012-07-119590-015-08301.20 ppm
2012-07-119590-015-14001.15 ppm
2012-07-119590-018-11200.452 ppm
2012-07-119590-020-07153.84 ppm
2012-07-189590-015-08302.48 ppm
2012-07-189590-018-10500.610 ppm
2012-07-189590-020-09503.84 ppm
2012-07-259590-015-08251.47 ppm
2012-07-259590-018-11002.15 ppm
2012-07-259590-020-08553.61 ppm
2012-07-309590-020-08154.07 ppm
2012-08-019590-015-08252.26 ppm
2012-08-019590-018-10302.26 ppm
2012-08-069590-020-08104.07 ppm
2012-08-089590-015-0915ND
2012-08-089590-018-11200.520 ppm
2012-08-089590-075-07153.84 ppm
2012-08-099590-020-09204.52 ppm
2012-08-139590-020-08404.29 ppm
2012-08-229590-020-08154.52 ppm
2012-08-239590-020-10354.07 ppm
2012-08-279590-020-08104.29 ppm
2012-09-059590-020-07554.07 ppm
2012-09-069590-075-07152.94 ppm
2012-09-129590-020-08474.29 ppm
2012-09-199590-018-12202.48 ppm
2012-09-199590-020-06004.29 ppm
2012-09-249590-020-08004.29 ppm
2012-09-269590-018-11002.48 ppm
2012-10-019590-020-08303.39 ppm
2012-10-019590-075-07503.16 ppm
2012-10-039590-018-10500.542 ppm
2012-10-089590-020-07154.07 ppm
2012-10-109590-018-10500.655 ppm
2012-10-159590-020-10354.29 ppm
2012-10-179590-018-10452.26 ppm
2012-10-229590-020-08304.07 ppm
2012-10-249590-018-11002.94 ppm
2012-10-299590-020-13403.84 ppm
2012-10-319590-018-10250.497 ppm
2012-11-059590-020-08154.07 ppm
2012-11-059590-075-07305.42 ppm
2012-11-079590-018-1050ND
2012-11-149590-018-1230ND
2012-11-209590-018-1110ND
2012-11-219590-020-09493.39 ppm
2012-11-269590-020-08454.29 ppm
2012-11-289590-018-10503.16 ppm
2012-12-039590-020-11004.29 ppm
2012-12-039590-075-14203.39 ppm
2012-12-059590-018-10400.565 ppm
2012-12-109590-020-08354.07 ppm
2012-12-129590-018-15001.33 ppm
2012-12-179590-020-08403.16 ppm
2012-12-199590-018-11200.633 ppm
2012-12-269590-020-08504.29 ppm
2012-12-279590-018-11502.06 ppm
2013-01-029590-020-06104.07 ppm
2013-01-029590-075-06503.84 ppm
2013-01-039590-018-11002.26 ppm
2013-01-099590-018-1120ND
2013-01-099590-020-11153.61 ppm
2013-01-169590-018-09002.48 ppm
2013-01-169590-020-09003.16 ppm
2013-01-239590-018-11002.26 ppm
2013-01-239590-020-08303.16 ppm
2013-01-309590-018-09552.94 ppm
2013-01-309590-020-09083.16 ppm
2013-02-049590-075-12503.16 ppm
2013-02-069590-018-12502.48 ppm
2013-02-069590-020-11403.84 ppm
2013-02-139590-018-10451.42 ppm
2013-02-139590-020-13303.84 ppm
2013-02-209590-018-10351.49 ppm
2013-02-209590-020-07403.16 ppm
2013-02-279590-018-10502.26 ppm
2013-02-279590-020-12304.29 ppm
2013-03-049590-075-07002.94 ppm
2013-03-069590-018-11153.16 ppm
2013-03-079590-020-09404.07 ppm
2013-03-139590-018-10402.48 ppm
2013-03-139590-020-10104.29 ppm
2013-03-209590-018-10552.24 ppm
2013-03-209590-020-11384.29 ppm
2013-03-279590-018-11302.21 ppm
2013-03-289590-020-13004.07 ppm
2013-04-019590-075-07400.452 ppm
2013-04-039590-018-10301.90 ppm
2013-04-039590-020-08573.16 ppm
2013-04-109590-018-11151.63 ppm
2013-04-109590-020-09303.16 ppm
2013-04-179590-018-10501.29 ppm
2013-04-179590-020-09203.16 ppm
2013-04-179590-020-10002.94 ppm
2013-04-249590-018-10300.474 ppm
2013-04-249590-020-13453.16 ppm
2013-04-299590-075-08004.07 ppm
2013-05-019590-018-10351.72 ppm
2013-05-019590-020-12123.61 ppm
2013-05-089590-018-11022.94 ppm
2013-05-099590-020-08203.84 ppm
2013-05-159590-018-10003.16 ppm
2013-05-159590-020-09103.16 ppm
2013-05-229590-018-11202.48 ppm
2013-05-229590-020-08524.07 ppm
2013-05-289590-018-11081.90 ppm
2013-05-299590-020-11404.52 ppm
2013-06-049590-075-10403.39 ppm
2013-06-059590-018-1051ND
2013-06-059590-020-09463.16 ppm
2013-06-129590-018-09450.497 ppm
2013-06-129590-020-10203.61 ppm
2013-06-199590-018-0945ND
2013-06-199590-020-10273.84 ppm
2013-06-249590-075-07003.61 ppm
2013-06-269590-018-0940ND
2013-06-269590-020-08403.61 ppm
2013-07-019590-018-09451.74 ppm
2013-07-039590-020-05452.71 ppm
2013-07-089590-075-11404.29 ppm
2013-07-109590-018-1000ND
2013-07-109590-020-10414.07 ppm
2013-07-179590-018-1015ND
2013-07-179590-020-08353.39 ppm
2013-07-249590-018-0952ND
2013-07-249590-020-08523.84 ppm
2013-07-319590-018-09501.67 ppm
2013-08-019590-020-11504.07 ppm
2013-08-079590-018-1005ND
2013-08-079590-020-08153.39 ppm
2013-08-079590-075-07003.61 ppm
2013-08-149590-018-10151.67 ppm
2013-08-159590-020-10522.21 ppm
2013-08-219590-018-09401.51 ppm
2013-08-219590-020-08152.94 ppm
2013-08-289590-018-12402.15 ppm
2013-08-289590-020-08492.94 ppm
2013-09-039590-018-1020ND
2013-09-039590-075-07002.94 ppm
2013-09-049590-020-09383.16 ppm
2013-09-119590-018-10301.94 ppm
2013-09-119590-020-08403.16 ppm
2013-09-189590-018-09501.92 ppm
2013-09-259590-018-1045ND
2013-10-029590-018-1005ND
2013-10-089590-018-09501.94 ppm
2013-10-099590-069-09455.42 ppm
2013-10-149590-075-13503.84 ppm
2013-10-169590-018-10051.90 ppm
2013-10-229590-018-10152.08 ppm
2013-10-299590-018-10001.99 ppm
2013-11-059590-018-10002.08 ppm
2013-11-059590-075-07003.61 ppm
2013-11-129590-018-09551.97 ppm
2013-11-199590-018-09351.99 ppm
2013-11-269590-018-09513.16 ppm
2013-12-039590-018-09502.12 ppm
2013-12-039590-075-0705ND
2013-12-109590-018-10002.71 ppm
2013-12-119590-069-08505.20 ppm
2013-12-179590-018-10250.474 ppm
2013-12-239590-018-10102.48 ppm
2013-12-309590-018-09552.71 ppm
2014-01-079590-018-1050ND
2014-01-099590-075-07003.61 ppm
2014-01-149590-018-10052.08 ppm
2014-01-159590-069-10105.65 ppm
2014-01-219590-018-1005ND
2014-01-289590-018-1000ND
2014-02-049590-018-10402.48 ppm
2014-02-049590-075-1235ND
2014-02-119590-018-10452.71 ppm
2014-02-129590-069-10485.42 ppm
2014-02-189590-018-10102.94 ppm
2014-02-259590-018-10243.16 ppm
2014-03-049590-018-10002.71 ppm
2014-03-049590-075-07302.71 ppm
2014-03-119590-018-10301.99 ppm
2014-03-129590-069-10545.20 ppm
2014-03-189590-018-1010ND
2014-03-259590-018-1145ND
2014-04-019590-018-14250.542 ppm
2014-04-039590-075-0720ND
2014-04-089590-018-10101.81 ppm
2014-04-099590-069-10406.10 ppm
2014-04-159590-018-1040ND
2014-04-229590-018-1345ND
2014-04-299590-018-0955ND
2014-05-069590-018-1330ND
2014-05-069590-075-1150ND
2014-05-139590-018-1205ND
2014-05-149590-069-10036.10 ppm
2014-05-209590-018-10000.633 ppm
2014-05-289590-018-1105ND
2014-06-039590-018-13201.17 ppm
2014-06-039590-075-0745ND
2014-06-109590-018-15050.542 ppm
2014-06-119590-069-09336.10 ppm
2014-06-179590-018-1010ND
2014-06-249590-018-1015ND
2014-07-019590-018-0940ND
2014-07-079590-075-1035ND
2014-07-089590-018-0948ND
2014-07-099590-069-09235.65 ppm
2014-07-159590-018-1010ND
2014-07-229590-018-09502.26 ppm
2014-07-299590-018-0935ND
2014-08-049590-075-1240ND
2014-08-059590-018-09150.813 ppm
2014-08-129590-018-1440ND
2014-08-139590-069-08135.42 ppm
2014-08-199590-018-14201.31 ppm
2014-08-269590-018-1345ND
2014-09-029590-018-11152.48 ppm
2014-09-049590-075-07552.94 ppm
2014-09-099590-018-10200.926 ppm
2014-09-169590-018-10051.22 ppm
2014-09-239590-018-10101.04 ppm
2014-09-309590-018-0930ND
2014-10-079590-018-10151.90 ppm
2014-10-099590-075-1245ND
2014-10-149590-018-09551.51 ppm
2014-10-149590-069-12235.42 ppm
2014-10-219590-018-10101.65 ppm
2014-10-289590-018-1010ND
2014-11-049590-018-10421.33 ppm
2014-11-109590-018-10180.949 ppm
2014-11-189590-018-10050.520 ppm
2014-11-249590-018-10151.76 ppm
2014-11-259590-075-13153.16 ppm
2014-12-029590-018-09552.48 ppm
2014-12-049590-075-07303.16 ppm
2014-12-099590-018-10502.48 ppm
2014-12-109590-069-09435.87 ppm
2014-12-169590-018-10153.61 ppm
2014-12-229590-018-09522.48 ppm
2014-12-299590-018-09153.39 ppm
2015-01-069590-018-10153.16 ppm
2015-01-089590-075-07303.84 ppm
2015-01-139590-018-10303.61 ppm
2015-01-149590-069-09415.87 ppm
2015-01-209590-018-10152.71 ppm
2015-01-279590-018-13473.61 ppm
2015-02-039590-018-14002.71 ppm
2015-02-039590-075-0735ND
2015-02-109590-018-13403.16 ppm
2015-02-119590-069-09135.87 ppm
2015-02-179590-018-13483.61 ppm
2015-02-249590-018-11003.16 ppm
2015-03-039590-018-10002.71 ppm
2015-03-059590-075-1140ND
2015-03-099590-069-09276.10 ppm
2015-03-109590-018-09582.26 ppm
2015-03-179590-018-10303.39 ppm
2015-03-249590-018-13502.71 ppm
2015-03-319590-018-10402.17 ppm
2015-04-079590-018-10402.24 ppm
2015-04-079590-075-1125ND
2015-04-149590-018-10301.58 ppm
2015-04-159590-069-08115.20 ppm
2015-04-219590-018-11091.60 ppm
2015-04-289590-018-09501.67 ppm
2015-05-059590-018-09401.31 ppm
2015-05-059590-075-0725ND
2015-05-129590-018-1015ND
2015-05-139590-069-08374.97 ppm
2015-05-199590-018-13350.745 ppm
2015-05-269590-018-09501.67 ppm
2015-06-039590-018-11402.01 ppm
2015-06-049590-075-07252.71 ppm
2015-06-099590-018-11051.63 ppm
2015-06-109590-069-10414.74 ppm
2015-06-169590-018-10151.47 ppm
2015-06-249590-018-1032ND
2015-06-309590-018-09300.949 ppm
2015-07-079590-075-13055.20 ppm
2015-07-089590-018-10150.520 ppm
2015-07-159590-018-1010ND
2015-07-159590-069-09575.65 ppm
2015-07-229590-018-11351.74 ppm
2015-07-299590-018-13200.542 ppm
2015-08-039590-075-07305.65 ppm
2015-08-059590-018-0920ND
2015-08-129590-018-09501.63 ppm
2015-08-129590-069-06035.65 ppm
2015-08-199590-018-09552.71 ppm
2015-08-269590-018-10350.587 ppm
2015-09-029590-018-0935ND
2015-09-029590-075-13455.65 ppm
2015-09-099590-018-09432.19 ppm
2015-09-169590-018-10000.542 ppm
2015-09-239590-018-0940ND
2015-09-309590-018-10501.33 ppm
2015-10-079590-018-1000ND
2015-10-089590-075-12504.52 ppm
2015-10-149590-018-0915ND
2015-10-149590-069-09035.40 ppm
2015-10-149590-069-09035.42 ppm
2015-10-219590-018-09251.99 ppm
2015-10-289590-018-1015ND
2015-11-049590-018-10050.450 ppm
2015-11-049590-018-10050.452 ppm
2015-11-059590-075-08104.80 ppm
2015-11-059590-075-08104.74 ppm
2015-11-109590-069-07155.30 ppm
2015-11-109590-069-07155.42 ppm
2015-11-129590-018-09350.930 ppm
2015-11-129590-018-09350.926 ppm
2015-11-189590-018-09401.80 ppm
2015-11-189590-018-09401.83 ppm
2015-11-239590-018-09553.40 ppm
2015-11-239590-018-09553.39 ppm
2015-12-029590-018-09522.70 ppm
2015-12-029590-018-09522.71 ppm
2015-12-029590-075-11155.30 ppm
2015-12-029590-075-11155.42 ppm
2015-12-099590-018-09402.60 ppm
2015-12-099590-018-09402.48 ppm
2015-12-099590-069-09015.50 ppm
2015-12-099590-069-09015.42 ppm
2015-12-149590-069-06475.80 ppm
2015-12-149590-069-06475.65 ppm
2015-12-169590-018-09502.20 ppm
2015-12-169590-018-09502.19 ppm
2015-12-179590-069-06136.90 ppm
2015-12-179590-069-06137.00 ppm
2015-12-229590-018-09351.80 ppm
2015-12-229590-018-09351.85 ppm
2015-12-299590-018-09352.60 ppm
2015-12-299590-018-09352.48 ppm
2016-01-069590-018-09503.80 ppm
2016-01-069590-075-11254.80 ppm
2016-01-139590-018-09303.50 ppm
2016-01-139590-069-09315.40 ppm
2016-01-209590-018-09353.50 ppm
2016-01-279590-018-10103.30 ppm
2016-02-039590-018-09356.10 ppm
2016-02-039590-075-1055ND
2016-02-109590-018-09452.30 ppm
2016-02-109590-069-09374.30 ppm
2016-02-179590-018-09351.80 ppm
2016-03-029590-075-10553.10 ppm
2016-03-099590-018-09381.90 ppm
2016-03-099590-069-09275.20 ppm
2016-03-169590-018-09051.80 ppm
2016-03-239590-018-09451.30 ppm
2016-03-309590-018-09450.850 ppm
2016-04-069590-018-0945ND
2016-04-139590-018-10071.000 ppm
2016-04-139590-069-10575.10 ppm
2016-04-149590-075-07354.20 ppm
2016-04-209590-018-09412.60 ppm
2016-04-279590-018-09452.90 ppm
2016-05-049590-018-09452.50 ppm
2016-05-059590-075-07354.30 ppm
2016-05-119590-018-10202.60 ppm
2016-05-119590-069-09014.90 ppm
2016-05-189590-018-10102.60 ppm
2016-05-259590-018-10101.50 ppm
2016-06-019590-018-10101.50 ppm
2016-06-029590-075-0730ND
2016-06-089590-018-0950ND
2016-07-079590-018-09450.480 ppm
2016-07-079590-075-11154.40 ppm
2016-07-139590-018-0925ND
2016-07-139590-069-10175.40 ppm
2016-07-209590-018-0930ND
2016-07-279590-018-12402.40 ppm
2016-08-039590-018-0950ND
2016-08-039590-075-10454.20 ppm
2016-08-109590-018-10403.60 ppm
2016-08-119590-069-08575.30 ppm
2016-08-179590-018-0945ND
2016-08-249590-018-0950ND
2016-08-319590-018-09250.510 ppm
2016-09-149590-069-10515.40 ppm
2016-10-059590-018-0943ND
2016-10-059590-069-05214.50 ppm
2016-10-059590-075-10553.80 ppm
2016-10-129590-018-10002.30 ppm
2016-10-139590-069-10275.30 ppm
2016-10-199590-018-09301.60 ppm
2016-10-269590-018-10000.740 ppm
2016-11-029590-018-09503.00 ppm
2016-11-029590-075-11003.80 ppm
2016-11-099590-018-09251.80 ppm
2016-11-109590-069-10575.70 ppm
2016-11-169590-018-10051.20 ppm
2016-11-219590-018-09222.70 ppm
2016-11-309590-018-09303.40 ppm
2016-12-159590-069-09135.70 ppm
2017-01-129588-069-10035.30 ppm
2017-02-219588-069-10274.80 ppm
2017-03-169588-069-10275.50 ppm
2017-04-139588-069-10175.40 ppm
2017-05-119588-069-09275.70 ppm
2017-06-129588-069-08475.80 ppm
2017-07-139588-069-09005.20 ppm
2017-08-109588-069-09215.40 ppm
2017-10-109588-069-11314.80 ppm
2017-11-169588-069-11134.50 ppm