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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

City of Tulare

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.

 

425

Samples

0

Samples exceeding legal limit (MCL)

393

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.88 ppm7167ND - 9.04 ppm
20154.02 ppm7067ND - 9.49 ppm
20163.87 ppm6658ND - 10.00 ppm
20173.63 ppm7873ND - 10.00 ppm
20182.81 ppm6357ND - 9.30 ppm
20192.98 ppm7771ND - 9.30 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
2014-03-065810-001-07451.54 ppm
2014-03-065810-002-08055.20 ppm
2014-03-065810-008-09203.61 ppm
2014-03-065810-011-09503.39 ppm
2014-03-065810-012-08004.97 ppm
2014-03-065810-013-09008.13 ppm
2014-03-065810-014-1030ND
2014-03-065810-017-10002.71 ppm
2014-03-065810-019-08566.10 ppm
2014-03-065810-021-08451.63 ppm
2014-03-065810-022-08307.45 ppm
2014-03-065810-023-09455.42 ppm
2014-03-065810-025-08156.78 ppm
2014-03-065810-026-09072.48 ppm
2014-03-065810-033-09210.768 ppm
2014-03-065810-047-09131.36 ppm
2014-03-065810-048-08334.97 ppm
2014-03-065810-051-09282.48 ppm
2014-03-065810-052-09320.700 ppm
2014-03-065810-055-10248.58 ppm
2014-03-065810-056-09584.29 ppm
2014-03-065810-057-09433.39 ppm
2014-03-065810-061-07552.08 ppm
2014-03-065810-065-0741ND
2014-03-065810-069-09402.71 ppm
2014-04-105810-015-09003.39 ppm
2014-06-055810-019-09006.55 ppm
2014-06-055810-021-09001.49 ppm
2014-06-055810-022-07057.91 ppm
2014-06-055810-025-10352.08 ppm
2014-06-055810-055-07266.55 ppm
2014-06-055810-056-10364.07 ppm
2014-06-055810-057-10230.881 ppm
2014-06-185810-008-07003.61 ppm
2014-06-185810-011-07302.71 ppm
2014-06-185810-012-08004.07 ppm
2014-06-185810-013-08208.58 ppm
2014-08-205810-012-06453.84 ppm
2014-08-205810-013-08459.04 ppm
2014-08-205810-019-06556.33 ppm
2014-08-205810-021-07051.47 ppm
2014-08-205810-022-09157.91 ppm
2014-08-205810-025-06352.15 ppm
2014-08-205810-048-07203.84 ppm
2014-08-205810-055-10255.65 ppm
2014-08-205810-056-07153.84 ppm
2014-08-205810-057-07100.949 ppm
2014-08-205810-061-0800ND
2014-08-205810-069-09453.16 ppm
2014-08-285810-001-08400.926 ppm
2014-08-285810-002-07305.20 ppm
2014-08-285810-014-0645ND
2014-08-285810-015-07552.71 ppm
2014-08-285810-017-07152.94 ppm
2014-08-285810-047-08452.71 ppm
2014-12-095810-002-09505.42 ppm
2014-12-095810-013-10108.81 ppm
2014-12-095810-019-08286.33 ppm
2014-12-095810-021-08151.49 ppm
2014-12-095810-022-10008.81 ppm
2014-12-095810-025-09002.26 ppm
2014-12-095810-048-08054.97 ppm
2014-12-095810-055-08308.58 ppm
2014-12-095810-056-10155.65 ppm
2014-12-095810-057-08450.949 ppm
2014-12-095810-061-09381.72 ppm
2014-12-095810-069-10053.39 ppm
2014-12-105810-025-10252.48 ppm
2014-12-105810-026-11202.71 ppm
2014-12-105810-033-08001.42 ppm
2014-12-105810-048-09155.20 ppm
2015-03-055810-008-09453.84 ppm
2015-03-055810-011-08502.71 ppm
2015-03-055810-012-10455.20 ppm
2015-03-055810-013-07459.04 ppm
2015-03-055810-014-0830ND
2015-03-055810-015-08202.94 ppm
2015-03-055810-017-11054.29 ppm
2015-03-055810-019-09476.78 ppm
2015-03-055810-021-09351.56 ppm
2015-03-055810-022-08259.26 ppm
2015-03-055810-025-11002.26 ppm
2015-03-055810-026-10052.71 ppm
2015-03-055810-033-0835ND
2015-03-055810-047-09451.81 ppm
2015-03-055810-048-09205.42 ppm
2015-03-055810-055-09309.49 ppm
2015-03-055810-056-08053.84 ppm
2015-03-055810-057-08550.858 ppm
2015-03-055810-065-0750ND
2015-03-055810-069-08502.71 ppm
2015-06-045810-019-08456.78 ppm
2015-06-045810-021-08151.47 ppm
2015-06-045810-022-09059.04 ppm
2015-06-045810-025-09002.48 ppm
2015-06-045810-048-10154.52 ppm
2015-06-045810-055-08449.26 ppm
2015-06-045810-056-10403.84 ppm
2015-06-045810-057-08000.745 ppm
2015-06-045810-061-10380.633 ppm
2015-06-045810-069-08122.94 ppm
2015-06-265810-001-11301.08 ppm
2015-06-265810-002-07405.20 ppm
2015-06-265810-008-08453.61 ppm
2015-06-265810-012-10154.97 ppm
2015-09-155810-012-10055.30 ppm
2015-09-155810-019-08556.70 ppm
2015-09-155810-021-08251.40 ppm
2015-09-155810-022-09428.60 ppm
2015-09-155810-025-09452.00 ppm
2015-09-155810-048-08103.90 ppm
2015-09-155810-055-09235.90 ppm
2015-09-155810-056-06504.00 ppm
2015-09-155810-057-07200.770 ppm
2015-09-155810-069-08463.70 ppm
2015-09-175810-012-08305.20 ppm
2015-09-175810-013-07158.20 ppm
2015-09-175810-015-06302.80 ppm
2015-09-175810-017-09404.40 ppm
2015-09-175810-025-11152.00 ppm
2015-09-175810-048-10203.80 ppm
2015-09-245810-061-07171.20 ppm
2015-12-095810-012-09104.80 ppm
2015-12-095810-013-07538.10 ppm
2015-12-095810-019-08306.70 ppm
2015-12-095810-021-08451.40 ppm
2015-12-095810-022-10409.20 ppm
2015-12-095810-025-09172.20 ppm
2015-12-095810-048-08553.60 ppm
2015-12-095810-055-10248.60 ppm
2015-12-095810-056-08035.90 ppm
2015-12-095810-057-08140.720 ppm
2015-12-095810-061-11451.90 ppm
2015-12-095810-069-10020.480 ppm
2015-12-155810-026-08504.70 ppm
2015-12-155810-047-09502.90 ppm
2015-12-155810-051-08202.40 ppm
2015-12-155810-052-08150.750 ppm
2015-12-155810-055-08558.80 ppm
2015-12-155810-056-08306.00 ppm
2015-12-155810-057-09050.760 ppm
2016-03-035810-001-10151.60 ppm
2016-03-035810-002-11055.30 ppm
2016-03-035810-008-11304.00 ppm
2016-03-035810-011-10453.60 ppm
2016-03-035810-012-09575.20 ppm
2016-03-035810-013-09558.80 ppm
2016-03-035810-014-0815ND
2016-03-035810-015-08152.90 ppm
2016-03-035810-017-09053.40 ppm
2016-03-035810-019-12007.20 ppm
2016-03-035810-021-11401.50 ppm
2016-03-035810-025-09404.70 ppm
2016-03-035810-026-09152.80 ppm
2016-03-035810-026-093510.00 ppm
2016-03-035810-047-1044ND
2016-03-035810-048-09004.00 ppm
2016-03-035810-051-07362.50 ppm
2016-03-035810-052-08301.20 ppm
2016-03-035810-055-09299.30 ppm
2016-03-035810-056-08006.70 ppm
2016-03-035810-057-08430.770 ppm
2016-03-035810-061-1149ND
2016-03-035810-065-1000ND
2016-03-035810-069-0755ND
2016-06-025810-061-07300.970 ppm
2016-06-095810-048-09103.90 ppm
2016-06-095810-055-08106.50 ppm
2016-06-095810-056-09305.70 ppm
2016-06-095810-057-09450.680 ppm
2016-06-095810-069-07453.10 ppm
2016-06-165810-014-0840ND
2016-06-165810-019-07507.10 ppm
2016-06-165810-021-08401.40 ppm
2016-06-165810-022-08408.80 ppm
2016-06-165810-069-0705ND
2016-06-245810-025-08453.50 ppm
2016-07-115810-061-11101.10 ppm
2016-08-255810-011-07003.00 ppm
2016-09-155810-002-10055.30 ppm
2016-09-155810-012-07055.30 ppm
2016-09-155810-013-08007.70 ppm
2016-09-155810-019-08457.30 ppm
2016-09-155810-021-08001.40 ppm
2016-09-155810-022-07308.90 ppm
2016-09-155810-025-08002.20 ppm
2016-09-155810-026-07352.90 ppm
2016-09-155810-047-10453.00 ppm
2016-09-155810-048-08303.90 ppm
2016-09-155810-055-09456.90 ppm
2016-09-155810-056-09004.30 ppm
2016-09-155810-057-08450.750 ppm
2016-09-155810-061-09551.10 ppm
2016-09-155810-065-0748ND
2016-09-155810-069-08503.20 ppm
2016-12-055810-033-10301.30 ppm
2016-12-205810-002-11104.90 ppm
2016-12-205810-013-11308.40 ppm
2016-12-205810-019-09357.50 ppm
2016-12-205810-021-09253.20 ppm
2016-12-205810-022-11509.70 ppm
2016-12-205810-025-10205.50 ppm
2016-12-205810-033-10401.20 ppm
2016-12-205810-048-08553.60 ppm
2016-12-205810-055-08159.70 ppm
2016-12-205810-056-11354.00 ppm
2016-12-205810-057-11100.740 ppm
2017-03-095810-001-07451.30 ppm
2017-03-095810-002-09004.70 ppm
2017-03-095810-012-08155.20 ppm
2017-03-095810-013-09006.70 ppm
2017-03-095810-014-0810ND
2017-03-095810-015-09302.70 ppm
2017-03-095810-017-07504.10 ppm
2017-03-095810-019-10307.10 ppm
2017-03-095810-021-09551.40 ppm
2017-03-095810-022-083510.00 ppm
2017-03-095810-025-08356.10 ppm
2017-03-095810-026-10252.70 ppm
2017-03-095810-033-10250.550 ppm
2017-03-095810-047-09203.10 ppm
2017-03-095810-048-09304.10 ppm
2017-03-095810-051-10502.70 ppm
2017-03-095810-052-10100.720 ppm
2017-03-095810-055-10555.80 ppm
2017-03-095810-056-09153.90 ppm
2017-03-095810-057-09400.690 ppm
2017-03-095810-061-11152.10 ppm
2017-03-095810-065-0752ND
2017-03-095810-069-10301.50 ppm
2017-03-235810-022-085210.00 ppm
2017-05-185810-073-12001.70 ppm
2017-06-085810-002-12255.00 ppm
2017-06-085810-012-11404.50 ppm
2017-06-085810-013-07456.40 ppm
2017-06-085810-017-06453.00 ppm
2017-06-085810-019-10207.60 ppm
2017-06-085810-021-11551.50 ppm
2017-06-085810-025-11052.20 ppm
2017-06-085810-048-12053.90 ppm
2017-06-085810-055-09306.10 ppm
2017-06-085810-056-08004.20 ppm
2017-06-085810-061-08073.40 ppm
2017-06-225810-048-08103.80 ppm
2017-06-225810-051-07352.60 ppm
2017-06-225810-052-07000.820 ppm
2017-06-225810-055-08006.00 ppm
2017-06-225810-056-07304.00 ppm
2017-06-225810-057-08000.580 ppm
2017-09-075810-012-07154.80 ppm
2017-09-075810-013-08406.00 ppm
2017-09-075810-014-0715ND
2017-09-075810-015-09203.00 ppm
2017-09-075810-017-07303.00 ppm
2017-09-075810-021-08451.40 ppm
2017-09-075810-022-08059.70 ppm
2017-09-075810-026-09052.90 ppm
2017-09-075810-033-09500.700 ppm
2017-09-075810-047-09301.30 ppm
2017-09-075810-048-08303.80 ppm
2017-09-075810-051-08002.60 ppm
2017-09-075810-052-10051.40 ppm
2017-09-075810-055-08379.40 ppm
2017-09-075810-056-09054.20 ppm
2017-09-075810-057-09350.610 ppm
2017-09-075810-061-09101.20 ppm
2017-09-215810-002-08105.10 ppm
2017-09-215810-008-03203.20 ppm
2017-09-215810-011-08502.80 ppm
2017-09-215810-061-08551.10 ppm
2017-09-215810-065-0715ND
2017-09-215810-069-08152.60 ppm
2017-12-075810-002-08255.30 ppm
2017-12-075810-014-0802ND
2017-12-075810-021-09351.40 ppm
2017-12-075810-022-101510.00 ppm
2017-12-075810-048-09503.70 ppm
2017-12-075810-055-09179.40 ppm
2017-12-075810-056-08554.00 ppm
2017-12-075810-057-09202.80 ppm
2017-12-075810-061-10562.10 ppm
2017-12-215810-012-09305.20 ppm
2017-12-215810-013-08505.30 ppm
2017-12-215810-015-08554.30 ppm
2017-12-215810-017-08154.20 ppm
2018-03-085810-002-08305.50 ppm
2018-03-085810-012-11555.30 ppm
2018-03-085810-013-09057.80 ppm
2018-03-085810-014-0745ND
2018-03-085810-015-08553.20 ppm
2018-03-085810-017-08254.70 ppm
2018-03-085810-021-11001.50 ppm
2018-03-085810-025-10155.40 ppm
2018-03-085810-026-10403.00 ppm
2018-03-085810-033-09550.710 ppm
2018-03-085810-047-10373.10 ppm
2018-03-085810-048-09503.90 ppm
2018-03-085810-052-09300.780 ppm
2018-03-085810-055-09249.10 ppm
2018-03-085810-056-08454.30 ppm
2018-03-085810-057-10001.40 ppm
2018-03-085810-061-10101.20 ppm
2018-03-085810-065-0815ND
2018-03-085810-069-08393.00 ppm
2018-05-175810-025-08052.10 ppm
2018-05-175810-051-07002.20 ppm
2018-06-075810-014-0855ND
2018-06-075810-021-10251.40 ppm
2018-06-075810-025-10452.00 ppm
2018-06-075810-026-09403.00 ppm
2018-06-075810-048-09553.80 ppm
2018-06-075810-051-08352.30 ppm
2018-06-075810-055-09307.30 ppm
2018-06-075810-056-07004.10 ppm
2018-06-075810-057-09050.560 ppm
2018-06-075810-061-08050.830 ppm
2018-06-255810-073-11103.10 ppm
2018-06-275810-001-11250.840 ppm
2018-09-065810-014-0830ND
2018-09-065810-021-10001.20 ppm
2018-09-065810-025-09401.90 ppm
2018-09-065810-048-12353.80 ppm
2018-09-065810-056-11454.20 ppm
2018-09-065810-057-11200.630 ppm
2018-09-075810-061-08451.20 ppm
2018-09-135810-055-08106.20 ppm
2018-09-205810-001-09300.730 ppm
2018-09-205810-033-08201.10 ppm
2018-09-205810-047-08302.80 ppm
2018-09-205810-048-08303.80 ppm
2018-09-205810-052-07150.590 ppm
2018-09-205810-073-07301.60 ppm
2018-11-095810-011-08152.90 ppm
2018-12-045810-012-09105.00 ppm
2018-12-045810-014-0815ND
2018-12-045810-025-08501.80 ppm
2018-12-045810-048-10253.50 ppm
2018-12-045810-056-11154.10 ppm
2018-12-045810-057-11402.60 ppm
2018-12-055810-055-08509.30 ppm
2018-12-055810-069-08002.70 ppm
2018-12-205810-017-10204.30 ppm
2018-12-205810-056-12204.10 ppm
2018-12-205810-057-13002.60 ppm
2018-12-205810-061-08552.20 ppm
2018-12-205810-065-0845ND
2018-12-205810-069-10153.20 ppm
2018-12-205810-073-08121.60 ppm
2019-01-085810-017-09004.60 ppm
2019-03-075810-001-09101.70 ppm
2019-03-075810-011-08404.00 ppm
2019-03-075810-012-10054.80 ppm
2019-03-075810-013-10407.90 ppm
2019-03-075810-014-0850ND
2019-03-075810-015-10293.30 ppm
2019-03-075810-017-08194.30 ppm
2019-03-075810-021-11401.90 ppm
2019-03-075810-025-08252.30 ppm
2019-03-075810-026-09353.00 ppm
2019-03-075810-033-11160.840 ppm
2019-03-075810-047-09183.00 ppm
2019-03-075810-048-10303.70 ppm
2019-03-075810-051-10474.40 ppm
2019-03-075810-052-11360.620 ppm
2019-03-075810-055-11309.30 ppm
2019-03-075810-056-11444.10 ppm
2019-03-075810-057-11042.60 ppm
2019-03-075810-061-09452.20 ppm
2019-03-075810-065-0740ND
2019-03-075810-069-11053.10 ppm
2019-03-075810-073-12443.20 ppm
2019-03-215810-014-0830ND
2019-03-215810-015-09303.30 ppm
2019-03-215810-073-09302.70 ppm
2019-03-225810-075-11302.10 ppm
2019-06-065810-012-09253.90 ppm
2019-06-065810-013-11156.40 ppm
2019-06-065810-021-09551.60 ppm
2019-06-065810-048-10403.70 ppm
2019-06-065810-055-11356.10 ppm
2019-06-065810-056-11054.20 ppm
2019-06-065810-057-10080.610 ppm
2019-06-065810-061-12501.60 ppm
2019-06-065810-069-11453.10 ppm
2019-06-065810-073-08401.80 ppm
2019-06-065810-075-07001.90 ppm
2019-06-205810-017-05153.70 ppm
2019-06-205810-048-07003.90 ppm
2019-06-205810-051-06302.60 ppm
2019-06-205810-055-07406.30 ppm
2019-06-205810-056-08254.40 ppm
2019-06-205810-073-07201.80 ppm
2019-06-205810-075-06452.10 ppm
2019-07-195810-077-13150.480 ppm
2019-09-055810-012-10554.10 ppm
2019-09-055810-021-10151.60 ppm
2019-09-055810-025-10402.10 ppm
2019-09-055810-048-10054.00 ppm
2019-09-055810-061-08172.40 ppm
2019-09-055810-069-12003.30 ppm
2019-09-105810-014-1045ND
2019-09-105810-056-11554.40 ppm
2019-09-105810-057-12000.800 ppm
2019-09-175810-011-09003.00 ppm
2019-09-175810-012-09455.30 ppm
2019-09-175810-061-08052.30 ppm
2019-09-175810-065-0715ND
2019-09-175810-069-08303.20 ppm
2019-09-175810-073-09001.70 ppm
2019-09-175810-075-08051.80 ppm
2019-09-245810-077-07000.500 ppm
2019-12-055810-012-08455.10 ppm
2019-12-055810-014-0900ND
2019-12-055810-021-09351.40 ppm
2019-12-055810-025-08252.00 ppm
2019-12-055810-048-09553.80 ppm
2019-12-055810-056-10454.20 ppm
2019-12-055810-057-13102.50 ppm
2019-12-055810-061-08502.30 ppm
2019-12-055810-069-10253.50 ppm
2019-12-195810-013-09306.00 ppm
2019-12-195810-055-10008.90 ppm
2019-12-195810-073-08453.60 ppm
2019-12-195810-075-09452.20 ppm
2019-12-195810-077-08150.630 ppm