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EWG's Tap Water Database

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Nitrate

Fremont City

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.

 

155

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20106.98 ppm4645ND - 13.0 ppm
20115.52 ppm30301.04 ppm - 11.2 ppm
20123.01 ppm2221ND - 8.31 ppm
20134.48 ppm23232.22 ppm - 5.97 ppm
20141.94 ppm22220.850 ppm - 2.60 ppm
20151.97 ppm12121.09 ppm - 3.16 ppm

ppm = parts per million.

State and national drinking water standards and health guidelines

Health Guideline 5 ppm

The health guideline of 5 ppm for nitrate was defined by EWG based on studies by scientists at the National Cancer Institute and other independent researchers. This health guideline protects against cancer and harm to fetal growth and development.

ppm = parts per million.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppm = parts per million.

EPA Maximum Contaminant
Level Goal (MCLG)10 ppm

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppm = parts per million.

All test results

Date Lab ID Result
2010-01-061163912.0 ppm
2010-01-071164310.6 ppm
2010-01-11116569.25 ppm
2010-01-12116609.27 ppm
2010-01-13116648.79 ppm
2010-02-031173011.8 ppm
2010-02-041173411.3 ppm
2010-02-09117518.50 ppm
2010-02-10117557.90 ppm
2010-02-11117597.28 ppm
2010-02-24117994.48 ppm
2010-03-03118216.30 ppm
2010-03-10118438.53 ppm
2010-03-17118677.25 ppm
2010-04-07119315.56 ppm
2010-05-05120168.74 ppm
2010-05-06120208.39 ppm
2010-05-11120364.66 ppm
2010-05-191206112.3 ppm
2010-05-201206510.4 ppm
2010-05-241207813.0 ppm
2010-05-261208511.0 ppm
2010-05-271209611.1 ppm
2010-05-281209710.5 ppm
2010-06-01121107.43 ppm
2010-06-01121107.43 ppm
2010-06-02121147.49 ppm
2010-06-02121147.49 ppm
2010-06-09121368.00 ppm
2010-06-09121368.00 ppm
2010-06-16121586.68 ppm
2010-06-16121586.68 ppm
2010-06-23121804.55 ppm
2010-06-23121804.55 ppm
2010-06-30122024.81 ppm
2010-06-30122024.84 ppm
2010-07-07122243.73 ppm
2010-07-07122243.73 ppm
2010-07-14122472.09 ppm
2010-07-21122690.770 ppm
2010-07-28122921.01 ppm
2010-08-04123141.80 ppm
2010-09-0112400ND
2010-10-06125081.43 ppm
2010-11-03126030.790 ppm
2010-12-08127098.70 ppm
2011-01-121281511.2 ppm
2011-01-121281511.2 ppm
2011-01-13128199.50 ppm
2011-01-13128199.50 ppm
2011-01-13128209.18 ppm
2011-01-13128209.18 ppm
2011-01-14128249.05 ppm
2011-01-14128249.05 ppm
2011-02-02128824.03 ppm
2011-02-02128824.03 ppm
2011-03-02129674.35 ppm
2011-04-06130763.80 ppm
2011-05-04131614.20 ppm
2011-05-11131834.46 ppm
2011-05-18132054.25 ppm
2011-05-25132275.43 ppm
2011-06-01132494.20 ppm
2011-06-08132713.34 ppm
2011-06-15132936.11 ppm
2011-06-22133167.89 ppm
2011-06-29133386.99 ppm
2011-07-06133604.06 ppm
2011-07-13133821.71 ppm
2011-07-20134042.75 ppm
2011-07-27134263.58 ppm
2011-08-03134482.28 ppm
2011-09-07135631.04 ppm
2011-10-05136492.85 ppm
2011-11-02137403.64 ppm
2011-12-15138702.81 ppm
2012-01-04139323.03 ppm
2012-02-08140382.70 ppm
2012-03-08141272.60 ppm
2012-04-03142061.90 ppm
2012-05-03142981.25 ppm
2012-05-0914317ND
2012-05-16143448.20 ppm
2012-05-23143664.85 ppm
2012-05-30143881.25 ppm
2012-06-06144101.09 ppm
2012-06-13144330.530 ppm
2012-06-20144558.31 ppm
2012-06-27144776.08 ppm
2012-07-03144972.76 ppm
2012-07-11145220.950 ppm
2012-07-18145440.860 ppm
2012-07-25145660.920 ppm
2012-08-01145890.790 ppm
2012-09-04146950.940 ppm
2012-10-03147847.15 ppm
2012-11-01148787.46 ppm
2012-12-06149942.70 ppm
2013-01-09150975.63 ppm
2013-02-13152035.60 ppm
2013-03-13152885.89 ppm
2013-04-10153755.97 ppm
2013-05-01154405.55 ppm
2013-05-08154625.40 ppm
2013-05-15154855.13 ppm
2013-05-22155115.16 ppm
2013-05-29155355.02 ppm
2013-06-05155574.59 ppm
2013-06-12155804.53 ppm
2013-06-19156044.55 ppm
2013-06-26156264.70 ppm
2013-07-03156524.77 ppm
2013-07-10156754.88 ppm
2013-07-17156984.28 ppm
2013-07-24157204.01 ppm
2013-07-31157433.78 ppm
2013-08-07157663.57 ppm
2013-09-04158592.80 ppm
2013-10-02159552.68 ppm
2013-11-06160652.22 ppm
2013-12-04161552.27 ppm
2014-01-08162652.11 ppm
2014-02-05163532.60 ppm
2014-03-05164432.46 ppm
2014-04-02165302.52 ppm
2014-05-04166582.14 ppm
2014-05-07166362.05 ppm
2014-05-21166842.02 ppm
2014-05-28167062.03 ppm
2014-06-04167281.92 ppm
2014-06-11167502.07 ppm
2014-06-18167721.91 ppm
2014-06-25167942.19 ppm
2014-07-02168171.98 ppm
2014-07-09168392.38 ppm
2014-07-16168612.31 ppm
2014-07-23168832.14 ppm
2014-07-30169051.87 ppm
2014-08-06169271.82 ppm
2014-09-03170151.06 ppm
2014-10-01171041.28 ppm
2014-11-05172210.850 ppm
2014-12-03173100.890 ppm
2015-01-07174161.17 ppm
2015-02-04175012.30 ppm
2015-03-04175872.79 ppm
2015-04-02176752.61 ppm
2015-05-06177782.45 ppm
2015-06-03178672.14 ppm
2015-07-02179563.16 ppm
2015-08-05180602.28 ppm
2015-09-03181541.28 ppm
2015-10-07182641.26 ppm
2015-11-05183591.09 ppm
2015-12-02184451.15 ppm