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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Garden 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.

MORE ABOUT THIS CONTAMINANT

 

315

Samples

0

Samples exceeding legal limit (MCL)

299

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20145.52 ppm52520.550 ppm - 9.00 ppm
20155.06 ppm5553ND - 9.08 ppm
20164.77 ppm5855ND - 7.90 ppm
20174.78 ppm50500.190 ppm - 9.50 ppm
20184.09 ppm48480.000210 ppm - 9.00 ppm
20193.96 ppm52520.00490 ppm - 8.80 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
2014-01-241401A35-0055.05 ppm
2014-01-241401A35-006-POCS4.25 ppm
2014-01-241401A35-003-POCS4.72 ppm
2014-01-241401A35-001-POCS8.15 ppm
2014-02-191402941-0034.57 ppm
2014-02-191402941-0018.14 ppm
2014-02-191402941-0074.98 ppm
2014-02-201402A36-0034.88 ppm
2014-02-201402A36-0026.71 ppm
2014-03-171403B15-0015.13 ppm
2014-03-171403B13-0019.00 ppm
2014-03-171403B13-0034.94 ppm
2014-04-071404515-0055.13 ppm
2014-04-071404515-001-POCS8.70 ppm
2014-04-071404515-003-POCS4.81 ppm
2014-04-171404D70-0036.59 ppm
2014-04-241404I43-0025.20 ppm
2014-05-151405C08-0056.05 ppm
2014-05-151405C08-0028.64 ppm
2014-05-151405C08-0045.07 ppm
2014-05-211405F95-0014.24 ppm
2014-06-161406B12-0018.68 ppm
2014-06-161406B14-0016.22 ppm
2014-06-161406B12-0025.00 ppm
2014-07-011407082-003-POCS4.26 ppm
2014-07-011407082-001-POCS7.63 ppm
2014-07-011407082-0055.49 ppm
2014-08-151408B39-002-PRI0.550 ppm
2014-08-151408B39-004-PRI5.01 ppm
2014-08-151408B39-003-PRI2.08 ppm
2014-08-151408B39-001-PRI0.560 ppm
2014-08-151408B39-005-PRI6.11 ppm
2014-08-181408C56-003-PRI4.38 ppm
2014-08-181408C56-001-PRI7.90 ppm
2014-08-181408C56-002-PRI4.47 ppm
2014-08-181408C56-004-PRI3.34 ppm
2014-09-151409B05-0015.53 ppm
2014-09-261409L24-0015.66 ppm
2014-09-291409M13-0017.93 ppm
2014-09-291409M13-0024.22 ppm
2014-10-091410639-003-POCS4.19 ppm
2014-10-091410639-001-POCS8.28 ppm
2014-10-091410640-0014.19 ppm
2014-10-151410A44-003-POCS6.47 ppm
2014-10-161410B50-001-POCS4.04 ppm
2014-10-201410C83-002-POCS5.14 ppm
2014-11-191411D39-0064.55 ppm
2014-11-191411D39-0027.89 ppm
2014-11-191411D39-0044.27 ppm
2014-12-011412083-003-POCS4.50 ppm
2014-12-011412083-005-POCS4.83 ppm
2014-12-011412083-0018.47 ppm
2015-01-141501802-007-POCS4.51 ppm
2015-01-141501802-0094.73 ppm
2015-01-141501802-005-POCS8.23 ppm
2015-01-211501C68-0013.38 ppm
2015-02-111502736-0015.26 ppm
2015-02-111502735-0033.64 ppm
2015-02-111502735-0019.08 ppm
2015-02-111502658-0054.93 ppm
2015-02-111502658-0026.43 ppm
2015-03-131503978-003ND
2015-03-131503978-0018.12 ppm
2015-03-131503978-005ND
2015-04-081504570-001-POCS4.09 ppm
2015-04-151504B56-004-POCS8.54 ppm
2015-04-151504B56-006-POCS5.05 ppm
2015-04-151504B56-0096.27 ppm
2015-04-151504B56-0085.76 ppm
2015-05-131505976-0044.93 ppm
2015-05-131505976-0028.31 ppm
2015-05-131505976-0066.07 ppm
2015-05-211505G04-0026.95 ppm
2015-06-051506533-0044.87 ppm
2015-06-051506533-0028.33 ppm
2015-06-051506535-0015.87 ppm
2015-07-201507D78-0085.39 ppm
2015-07-201507D78-006-POCS4.46 ppm
2015-07-201507D78-004-POCS7.60 ppm
2015-08-051508347-003-PRI6.81 ppm
2015-08-051508347-005-PRI4.43 ppm
2015-08-051508347-0105.49 ppm
2015-08-051508347-002-PRI0.670 ppm
2015-08-051508347-003-SEC6.81 ppm
2015-08-051508347-004-PRI7.75 ppm
2015-08-061508491-001-PRI2.22 ppm
2015-08-061508491-007-PRI3.26 ppm
2015-08-061508491-004-PRI4.24 ppm
2015-08-061508491-002-PRI4.84 ppm
2015-08-071508632-002-PRI0.330 ppm
2015-08-071508632-001-PRI0.320 ppm
2015-09-231509I10-0043.77 ppm
2015-09-231509I10-0026.51 ppm
2015-09-231509I10-0064.76 ppm
2015-10-141510B25-006-POCS4.93 ppm
2015-10-141510B25-0106.56 ppm
2015-10-141510B25-004-POCS4.17 ppm
2015-10-161510C97-0015.13 ppm
2015-10-161510C96-0004-POC4.07 ppm
2015-10-161510C96-001-POCS7.02 ppm
2015-10-281510L96-003-PRI0.660 ppm
2015-11-051511426-0077.64 ppm
2015-11-051511426-0094.29 ppm
2015-11-051511430-0014.65 ppm
2015-12-041512401-0027.48 ppm
2015-12-041512401-0044.69 ppm
2015-12-041512401-0034.24 ppm
2016-01-131601875-002-POCS3.77 ppm
2016-01-131601875-004-POCS3.98 ppm
2016-01-151601A71-005-POCS4.33 ppm
2016-01-151601A74-0014.44 ppm
2016-01-151601A71-003-POCS7.69 ppm
2016-01-201601D70-001-POCS7.05 ppm
2016-02-101602877-0064.90 ppm
2016-02-101602877-0027.84 ppm
2016-02-101602877-0044.56 ppm
2016-03-211603G06-0037.29 ppm
2016-03-211603G06-0055.23 ppm
2016-03-211603G06-0044.37 ppm
2016-04-061604571-001-POCS7.90 ppm
2016-04-061604571-003-POCS4.38 ppm
2016-04-061604573-002A4.90 ppm
2016-04-131604C90-001-POCS6.72 ppm
2016-04-201604J20-001-POCS3.68 ppm
2016-04-221604L62-003-POCS5.27 ppm
2016-05-191605I37-0035.20 ppm
2016-05-191605I37-0024.25 ppm
2016-05-191605I37-0017.27 ppm
2016-06-071606643-001-POCSND
2016-06-071606643-003-POCSND
2016-06-081606758-0054.09 ppm
2016-06-081606758-0037.00 ppm
2016-06-081606760-0015.09 ppm
2016-07-061607432-001-PRI3.22 ppm
2016-07-151607D32-006-POCS6.61 ppm
2016-07-151607D32-0125.24 ppm
2016-07-151607D32-013-POCS3.82 ppm
2016-07-151607D32-008-POCS7.14 ppm
2016-07-191607F76-0044.63 ppm
2016-07-191607F76-0034.12 ppm
2016-08-111608B92-0015.04 ppm
2016-08-111608B89-0026.68 ppm
2016-08-111608B89-0044.02 ppm
2016-08-171608H35-002-PRI0.140 ppm
2016-08-171608H35-001-PRIND
2016-09-091609665-002-PRI0.590 ppm
2016-09-091609665-001-PRI0.680 ppm
2016-09-121609776-002-PRI6.73 ppm
2016-09-141609B78-002-PRI2.46 ppm
2016-09-141609B78-003-PRI6.21 ppm
2016-09-211600I88-0055.22 ppm
2016-09-211609I88-001-PRI6.98 ppm
2016-09-211609I88-003-PRI4.19 ppm
2016-09-231609L06-001-PRI3.98 ppm
2016-09-231609L06-003-PRI2.99 ppm
2016-10-137019700083.80 ppm
2016-10-137019700066.10 ppm
2016-10-137019700124.60 ppm
2016-10-207026000016.80 ppm
2016-11-217051490064.20 ppm
2016-11-217051490047.60 ppm
2016-11-217051500014.60 ppm
2016-12-067061670024.30 ppm
2016-12-067061670017.50 ppm
2016-12-067061670055.50 ppm
2017-01-0170103610046.90 ppm
2017-01-197095140064.40 ppm
2017-01-197095140075.20 ppm
2017-01-197095140042.90 ppm
2017-01-197095140057.80 ppm
2017-01-237096430013.90 ppm
2017-02-1470113110044.80 ppm
2017-02-1470113110028.10 ppm
2017-02-1470113110065.20 ppm
2017-03-0670127210028.20 ppm
2017-03-0670127210044.60 ppm
2017-03-0670127210065.00 ppm
2017-04-0770153150034.50 ppm
2017-04-0770153150018.00 ppm
2017-04-0770153190014.70 ppm
2017-04-1870162260063.60 ppm
2017-04-1870162260046.20 ppm
2017-05-0470180470035.10 ppm
2017-05-1670187930034.60 ppm
2017-05-1670187930018.00 ppm
2017-05-1670187930055.40 ppm
2017-06-0170201540019.50 ppm
2017-06-0170201540055.20 ppm
2017-07-0770234710055.90 ppm
2017-07-0770234710124.30 ppm
2017-07-0770234710114.50 ppm
2017-07-0770234710143.40 ppm
2017-08-1070268880064.60 ppm
2017-08-1070268880043.70 ppm
2017-08-1070268880026.30 ppm
2017-10-0470319030050.190 ppm
2017-10-0470319030044.10 ppm
2017-10-0470319030037.00 ppm
2017-10-047318940014.80 ppm
2017-10-0470319020016.40 ppm
2017-10-0470319020060.240 ppm
2017-10-0470319020034.00 ppm
2017-10-1370328570010.490 ppm
2017-10-1370328570020.660 ppm
2017-10-137038570034.20 ppm
2017-10-2670341560025.10 ppm
2017-10-2670341560012.00 ppm
2017-11-0270347090016.10 ppm
2017-11-0270347070014.00 ppm
2017-11-0270347090033.50 ppm
2017-11-0670349660013.30 ppm
2017-11-0670349740014.40 ppm
2017-12-1470382420043.40 ppm
2017-12-1470382420074.50 ppm
2017-12-1470382420036.10 ppm
2018-01-1070400920013.60 ppm
2018-01-1670405270034.40 ppm
2018-01-1670405270054.50 ppm
2018-01-1670405270018.20 ppm
2018-01-1870408300023.50 ppm
2018-02-1370428070026.10 ppm
2018-02-1370428070043.70 ppm
2018-02-1370428070074.30 ppm
2018-03-0870818620040.00590 ppm
2018-03-0870818620055.90 ppm
2018-03-0870818620039.00 ppm
2018-03-1470453330037.20 ppm
2018-03-1470453330074.30 ppm
2018-03-1470453330053.90 ppm
2018-04-1770486980034.80 ppm
2018-04-1770486980017.00 ppm
2018-04-1770486980024.20 ppm
2018-04-1970489930025.20 ppm
2018-04-2470494560014.20 ppm
2018-05-2570528780015.80 ppm
2018-05-2570528780024.00 ppm
2018-05-2570528780034.50 ppm
2018-06-0570537550030.240 ppm
2018-06-0670539020096.00 ppm
2018-06-0670539020057.00 ppm
2018-06-0670539020074.50 ppm
2018-07-1070578320043.40 ppm
2018-07-1070578320050.00340 ppm
2018-07-1070578320035.10 ppm
2018-07-1070578330014.00 ppm
2018-08-0870608950033.50 ppm
2018-08-0870608950016.60 ppm
2018-08-0870608950050.00530 ppm
2018-09-127064528002-POCS0.000210 ppm
2018-09-1770650720014.50 ppm
2018-09-1770650720034.00 ppm
2018-10-117067661002-PRI3.80 ppm
2018-10-117067661001-PRI4.60 ppm
2018-10-157067953001-PRI0.00210 ppm
2018-10-1570679530024.90 ppm
2018-10-2470689200033.70 ppm
2018-10-247068920001-PRI4.20 ppm
2018-11-2170718200033.50 ppm
2018-11-2170718200065.70 ppm
2018-11-2170718200053.20 ppm
2018-12-0370725970030.00310 ppm
2018-12-0370725970052.70 ppm
2018-12-0370725970012.70 ppm
2019-01-0770757450024.80 ppm
2019-01-0970760760016.30 ppm
2019-01-0970760760034.30 ppm
2019-01-0970760760044.10 ppm
2019-01-1470765210023.70 ppm
2019-02-0870789300033.50 ppm
2019-02-0870789300015.80 ppm
2019-02-0870789300053.70 ppm
2019-04-0570848160018.80 ppm
2019-04-0570848160074.90 ppm
2019-04-0570848160045.30 ppm
2019-04-1070853040014.20 ppm
2019-04-1270857100022.40 ppm
2019-05-0870886750034.60 ppm
2019-05-0870886750016.70 ppm
2019-05-0870886750024.20 ppm
2019-05-097088902001-SEC0.130 ppm
2019-05-097088902003-SEC0.120 ppm
2019-06-1170930400015.60 ppm
2019-06-1170930400054.20 ppm
2019-06-1170930400033.50 ppm
2019-07-1070969300054.40 ppm
2019-07-1070969300033.00 ppm
2019-07-1070969300015.50 ppm
2019-08-0770100284003-PRI4.40 ppm
2019-08-07701002840044.70 ppm
2019-08-07701002840027.60 ppm
2019-08-08701005310033.30 ppm
2019-08-08701005310024.50 ppm
2019-08-08701005310043.40 ppm
2019-08-08701005310014.70 ppm
2019-08-0970100701003-PRI2.20 ppm
2019-08-0970100701001-PRI2.30 ppm
2019-08-0970100701002-PRI6.10 ppm
2019-08-19701019230020.260 ppm
2019-08-1970101923001-PRI0.260 ppm
2019-08-2170102243002-PRI0.590 ppm
2019-08-2170102243001-PRI0.560 ppm
2019-09-12701047640015.60 ppm
2019-09-12701047640054.40 ppm
2019-09-12701047640033.60 ppm
2019-10-09701079240050.00490 ppm
2019-10-09701079240033.90 ppm
2019-10-09701079240016.10 ppm
2019-10-18701090150017.10 ppm
2019-10-21701091540044.20 ppm
2019-11-08701113120010.00660 ppm
2019-11-08701113120054.10 ppm
2019-11-08701113120034.00 ppm
2019-12-19701160300054.00 ppm
2019-12-19701160300033.80 ppm
2019-12-19701160300016.70 ppm