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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

Plainview WD

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

 

744

Samples

0

Samples exceeding legal limit (MCL)

720

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.09 ppm1381380.00377 ppm - 9.24 ppm
20154.13 ppm1161160.00358 ppm - 8.10 ppm
20164.12 ppm138136ND - 8.17 ppm
20174.38 ppm1421420.00170 ppm - 8.20 ppm
20183.47 ppm1031030.00140 ppm - 8.30 ppm
20193.90 ppm107106ND - 8.10 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
2014-01-071401138-001-POCS4.38 ppm
2014-01-071401138-002-POCS4.53 ppm
2014-01-081401238-0045.84 ppm
2014-01-081401236-0045.84 ppm
2014-01-091401329-002-PRI4.02 ppm
2014-01-091401329-001-PRI4.11 ppm
2014-01-101401387-002-PRI0.680 ppm
2014-01-101401387-001-PRI1.19 ppm
2014-01-131401426-002-POCS3.89 ppm
2014-01-131401426-003-POCS4.97 ppm
2014-01-131401426-001-POCS5.78 ppm
2014-01-161401707-002-PRI4.04 ppm
2014-01-161401707-003-PRI5.21 ppm
2014-01-161401707-001-PRI5.52 ppm
2014-01-211401879-001-PRI1.47 ppm
2014-01-211401879-002-PRI0.700 ppm
2014-02-031402004-001-POCS4.53 ppm
2014-02-031402004-002-POCS4.68 ppm
2014-02-041402034-0046.35 ppm
2014-02-101402372-001-POCS1.42 ppm
2014-02-101402372-002-POCS0.810 ppm
2014-02-111402455-001-POCS4.24 ppm
2014-02-271402F41-002-POCS1.98 ppm
2014-02-271402F41-001-POCS5.03 ppm
2014-02-271402F41-003-POCS2.64 ppm
2014-03-031403014-002-POCS4.62 ppm
2014-03-031403014-001-POCS4.59 ppm
2014-03-041403096-0046.08 ppm
2014-03-101403566-002-POCS0.770 ppm
2014-03-101403566-001-POCS1.61 ppm
2014-03-181403C16-001-POCS4.64 ppm
2014-03-191403D40-001-POCS5.09 ppm
2014-03-191403D40-003-POCS3.72 ppm
2014-03-191403D40-002-POCS3.16 ppm
2014-04-011404032-001-POCS1.59 ppm
2014-04-011404032-002-POCS0.970 ppm
2014-04-031404265-001-POCS4.50 ppm
2014-04-031404265-002-POCS4.55 ppm
2014-04-071404438-001-POCS4.83 ppm
2014-04-141404979-002-POCS3.30 ppm
2014-04-141404979-003-POCS3.80 ppm
2014-04-141404979-001-POCS4.85 ppm
2014-04-161404C04-0046.08 ppm
2014-05-01405011-001-POCS4.20 ppm
2014-05-011405011-002-POCS4.39 ppm
2014-05-021405140-004-PRI0.420 ppm
2014-05-021405140-0020.840 ppm
2014-05-021405140-003-PRI0.470 ppm
2014-05-021405140-0017.01 ppm
2014-05-051405184-003-POCS4.04 ppm
2014-05-051405184-001-POCS3.55 ppm
2014-05-051405184-002-POCS5.85 ppm
2014-05-121405773-0045.78 ppm
2014-05-121405744-001-POCS1.57 ppm
2014-05-121405744-002-POCS0.930 ppm
2014-06-021406009-001-POCS4.55 ppm
2014-06-021406009-002-POCS4.51 ppm
2014-06-031406123-003-POCS4.29 ppm
2014-06-031406123-002-POCS3.59 ppm
2014-06-031406123-001-POCS6.23 ppm
2014-06-041406340-004-POCS7.53 ppm
2014-06-041406340-002-POCS7.60 ppm
2014-06-041406340-001-POCS6.69 ppm
2014-06-061406477-001-PRI7.26 ppm
2014-06-091406553-002-POCS0.740 ppm
2014-06-091406553-001-POCS1.43 ppm
2014-06-171406B86-0048.15 ppm
2014-06-241406G86-002-POCS3.67 ppm
2014-06-241406H58-001-POCS4.40 ppm
2014-06-241406G86-001-POCS5.90 ppm
2014-07-011407007-002-POCS4.42 ppm
2014-07-011407006-001-POCS4.49 ppm
2014-07-011407007-001-POCS4.48 ppm
2014-07-071407321-003-POCS1.16 ppm
2014-07-071407321-002-POCS0.790 ppm
2014-07-071407321-001-POCS1.50 ppm
2014-07-091407553-0045.96 ppm
2014-07-211407E-05-001-POC6.04 ppm
2014-07-211407E05-002-POCS3.37 ppm
2014-07-211407E05-003-POCS4.19 ppm
2014-07-291407K19-001-POCS6.14 ppm
2014-07-291407K19-002-POCS6.03 ppm
2014-08-051408163-002-POCS4.53 ppm
2014-08-051408163-001-POCS4.56 ppm
2014-08-111408603-002-POCS0.750 ppm
2014-08-113-001-POCS1.49 ppm
2014-08-121408691-0046.10 ppm
2014-08-141408968-001-POCS4.69 ppm
2014-08-191408C69-001-POCS6.37 ppm
2014-08-191408C69-002-POCS3.31 ppm
2014-08-191408C69-003-POCS4.35 ppm
2014-08-251408H13-001-POCS6.51 ppm
2014-08-251408H13-002-POCS6.44 ppm
2014-08-311508N08-002-POCS7.01 ppm
2014-08-311508N08-001-POCS7.06 ppm
2014-09-021409006-001-POCS4.72 ppm
2014-09-021409006-002-POCS4.75 ppm
2014-09-031409147-001-POCS1.55 ppm
2014-09-031409147-002-POCS0.760 ppm
2014-09-081409465-001-POCS6.27 ppm
2014-09-081409465-003-POCS5.05 ppm
2014-09-081409465-002-POCS3.70 ppm
2014-09-091409574-0046.10 ppm
2014-09-291409L55-001-POCS6.60 ppm
2014-09-291409L82-001-POCS5.21 ppm
2014-09-291409L55-002-POCS6.48 ppm
2014-10-061410303-002-POCS0.00377 ppm
2014-10-061410303-001-POCS6.21 ppm
2014-10-061410303-003-POCS5.23 ppm
2014-10-071410401-002-POCS9.24 ppm
2014-10-071410401-001-POCS4.68 ppm
2014-10-08410540-001-POCS4.85 ppm
2014-10-081410540-002-POCS4.65 ppm
2014-10-141410867-0046.73 ppm
2014-10-211410D18-001-POCS1.77 ppm
2014-10-211410D18-002-POCS0.700 ppm
2014-10-281410H85-001-POCS4.95 ppm
2014-11-031511114-0014.00 ppm
2014-11-031411029-001-POCS4.42 ppm
2014-11-0314110290002-POCS4.62 ppm
2014-11-031511114-002-POCS3.99 ppm
2014-11-041411162-001-POCS5.81 ppm
2014-11-041411160-001-POCS1.88 ppm
2014-11-041411162-003-POCS4.23 ppm
2014-11-041411162-002-POCS2.60 ppm
2014-11-041411160-002-POCS0.890 ppm
2014-11-121411709-0016.49 ppm
2014-11-241411F90-001-POCS3.96 ppm
2014-12-011412055-002-POCS0.890 ppm
2014-12-011412004-002-POCS4.60 ppm
2014-12-011412004-001-POCS4.61 ppm
2014-12-011412055-003-POCS1.05 ppm
2014-12-011412055-001-POCS1.86 ppm
2014-12-081412528-002-POCS1.06 ppm
2014-12-081412528-003-POCS1.34 ppm
2014-12-081412528-001-POCS5.45 ppm
2014-12-151412A54-0016.22 ppm
2014-12-301412J15-001-POCS4.08 ppm
2015-01-051501099-0015.97 ppm
2015-01-051501057-001-POCS4.37 ppm
2015-01-051501057-002-POCS4.42 ppm
2015-01-131501685-002-PRI4.47 ppm
2015-01-131501685-001-PRI4.57 ppm
2015-01-141501749-001-PRI1.84 ppm
2015-01-231501E09-001-PRI5.46 ppm
2015-01-231501E09-002-PRI2.27 ppm
2015-01-231501E09-003-PRI4.58 ppm
2015-01-261501F00-002-POCS2.46 ppm
2015-01-261501F00-001-POCS5.51 ppm
2015-01-261501F00-003-POCS4.31 ppm
2015-02-021502020-001-POCS5.95 ppm
2015-02-021502020-002-POCS4.72 ppm
2015-02-031502056-003-POCS1.32 ppm
2015-02-031502056-001-POCS2.00 ppm
2015-02-031502056-002-POCS1.000 ppm
2015-02-101502545-0046.15 ppm
2015-02-181502A50-001-POCS1.50 ppm
2015-03-031503079-001-POCS1.76 ppm
2015-03-031503079-002-POCS0.880 ppm
2015-03-031503079-003-POCS1.31 ppm
2015-03-041503215-001-POCS4.55 ppm
2015-03-041503215-002-POCS4.54 ppm
2015-03-101503567-001-POCS2.91 ppm
2015-03-111503703-0045.96 ppm
2015-04-011504025-002-POCS4.08 ppm
2015-04-011504025-001-POCS4.04 ppm
2015-04-061504293-001-POCS4.60 ppm
2015-04-211504F27-001-POCS1.71 ppm
2015-04-211504F27-002-POCS0.760 ppm
2015-05-041505116-002-POCS5.07 ppm
2015-05-041505165-0046.64 ppm
2015-05-041505116-001-POCS4.98 ppm
2015-05-081505605-002-PRI6.75 ppm
2015-05-081505605-004-PRI6.94 ppm
2015-05-111505698-003-POCS1.42 ppm
2015-05-111505698-002-POCS0.780 ppm
2015-05-111505698-001-POCS1.80 ppm
2015-05-141505A15-001-POCS5.35 ppm
2015-06-041506369-001-PRI4.62 ppm
2015-06-041506369-003-PRI4.78 ppm
2015-06-081506608-0047.81 ppm
2015-06-091506752-001-POCS4.77 ppm
2015-06-091506752-002-POCS4.57 ppm
2015-06-101506840-002-POCS0.830 ppm
2015-06-101506840-003-POCS1.31 ppm
2015-06-101506840-001-POCS1.66 ppm
2015-06-251506K63-001-POCS7.27 ppm
2015-06-251506K63-002-POCS7.48 ppm
2015-07-071507339-003-POCS3.79 ppm
2015-07-071507339-002-POCS4.44 ppm
2015-07-071507339-001-POCS5.15 ppm
2015-07-091507598-0047.17 ppm
2015-07-171507C71-002-POCS7.91 ppm
2015-07-171507C71-001-POCS7.38 ppm
2015-07-221507F82-002-POCS0.680 ppm
2015-07-221507F82-001-POCS1.61 ppm
2015-07-221507F88-001-POCS1.24 ppm
2015-07-281507J65-0024.21 ppm
2015-07-28150760-003-POCS4.70 ppm
2015-07-281507J60-001-POCS6.17 ppm
2015-08-041508128-001-POCS4.83 ppm
2015-08-041508128-002-POCS4.87 ppm
2015-08-051508306-001-POCS1.73 ppm
2015-08-051508306-002-POCS0.780 ppm
2015-08-121508902-0056.37 ppm
2015-08-121508668-001-POCS5.39 ppm
2015-08-121508306-003-POCS1.33 ppm
2015-08-191508E92-0024.66 ppm
2015-08-191508E91-003-POCS4.52 ppm
2015-08-191508E91-001-POCS6.45 ppm
2015-08-191508E91-002-POCS3.73 ppm
2015-09-021509122-002-POCS4.64 ppm
2015-09-021509122-003-POCS4.65 ppm
2015-09-021509122-001-POCS5.10 ppm
2015-09-091509636-0016.65 ppm
2015-09-111509769-0028.10 ppm
2015-09-111509796-0017.88 ppm
2015-09-161509B60-001-POCS1.68 ppm
2015-09-161509B60-002-POCS0.750 ppm
2015-09-161509B60-003-POCS1.28 ppm
2015-09-221509G40-003-POCS4.23 ppm
2015-09-221509G40-001-POCS5.94 ppm
2015-09-221509G40-002-POCS3.48 ppm
2015-09-221509G40-0074.30 ppm
2015-09-291509L97-002-POCS7.28 ppm
2015-09-291509L97-001-POCS7.16 ppm
2015-10-051510202-001-POCS5.16 ppm
2015-10-061510378-002-POCS4.53 ppm
2015-10-061510378-001-POCS0.00455 ppm
2015-10-131510890-004-GE1.51 ppm
2015-10-131510890-001-POCS1.72 ppm
2015-10-131510890-002-POCS0.790 ppm
2015-10-141510A29-0046.23 ppm
2015-10-20151E70-002-POCS5.59 ppm
2015-10-201510E70-003-POCS2.85 ppm
2015-10-20151E70-004-POCS3.91 ppm
2015-10-201510E70-008-GE3.83 ppm
2015-10-201510E70-001-POCS3.57 ppm
2015-10-271510K13-001-POCS7.22 ppm
2015-10-271510K13-002-POCS7.58 ppm
2015-11-041511267-0016.83 ppm
2015-11-161511B78-001-POCS4.29 ppm
2015-11-171511C64-004-POCS3.40 ppm
2015-11-171511C64-001-POCS3.22 ppm
2015-11-171511C64-0083.33 ppm
2015-11-171511C64-003-POCS2.61 ppm
2015-11-171511C64-002-POCS5.01 ppm
2015-12-011512014-002-POCS4.59 ppm
2015-12-021512154-0046.10 ppm
2015-12-081512605-001-POCS3.98 ppm
2015-12-15151D35-002-POCS0.00358 ppm
2015-12-161512D35-004-POCS4.62 ppm
2015-12-16151D35-001-POCS3.93 ppm
2015-12-161512D35-003-POCS6.07 ppm
2016-01-051601130001-POCS4.61 ppm
2016-01-051601130-002-POCS4.65 ppm
2016-01-071601345-0046.75 ppm
2016-01-121601648-001-POCS4.42 ppm
2016-01-141601962-003-PRI1.61 ppm
2016-01-141601962-004-PRI2.51 ppm
2016-01-151601A32-002-PRIND
2016-01-15160A32-001-SEC3.75 ppm
2016-01-17709276002-PRI1.60 ppm
2016-01-191601B52-002-PRI3.20 ppm
2016-01-191601B52-001-PRI3.08 ppm
2016-01-201601D06-003-POCS2.72 ppm
2016-01-201601D06-001-POCS4.01 ppm
2016-01-201601D06-004-POCS3.81 ppm
2016-01-201601D06-002-POCS5.88 ppm
2016-01-261601G57-002-POCS1.01 ppm
2016-01-261601G57-001-POCS1.59 ppm
2016-02-011602009-002-POCS4.28 ppm
2016-02-021602124-001-POCS3.96 ppm
2016-02-021602124-003-POCS4.11 ppm
2016-02-021602124-002-POCS5.75 ppm
2016-02-021602124-004-POCS2.30 ppm
2016-02-031602262-001-POCS4.94 ppm
2016-02-031602009-001-POCS4.24 ppm
2016-02-091602755-0046.17 ppm
2016-02-171602C36-001-POCS1.52 ppm
2016-02-171602C36-002-POCS1.35 ppm
2016-03-011603001-0046.28 ppm
2016-03-021603127-001-POCS4.58 ppm
2016-03-021603127-002-POCS4.61 ppm
2016-03-081603588-001-POCS1.67 ppm
2016-03-091603705-003-POCS3.96 ppm
2016-03-091603705-004-POCS2.01 ppm
2016-03-091603705-002-POCS5.58 ppm
2016-03-091603705-001-POCS3.85 ppm
2016-03-161603C59-002-POCS1.27 ppm
2016-03-161603C59-001-POCS1.64 ppm
2016-03-171603E01-002-SEC4.56 ppm
2016-03-171603E01-002-PRIND
2016-03-171603E010001-PRI6.23 ppm
2016-04-051604317-002-POCS4.51 ppm
2016-04-051604317-001-POCS4.75 ppm
2016-04-061604474-001-POCS2.42 ppm
2016-04-061604474-002-POCS1.05 ppm
2016-04-071604644-0046.04 ppm
2016-04-191604H22-001-POCS3.57 ppm
2016-04-191604H22-002-POCS5.49 ppm
2016-04-191604H22-004-POCS3.30 ppm
2016-04-191604H22-003-POCS3.67 ppm
2016-04-271604O64-001-POCS3.99 ppm
2016-04-281604Q16-001-PRI5.80 ppm
2016-04-281604Q16-002-PRI6.53 ppm
2016-05-031605131-001-POCS4.65 ppm
2016-05-031605131-002-POCS4.12 ppm
2016-05-041605276-0046.33 ppm
2016-05-051605408-001-POCS4.19 ppm
2016-05-171605E44-002-POCS6.87 ppm
2016-05-171605E44-001-POCS4.00 ppm
2016-05-171605E44-003-POCS3.86 ppm
2016-05-171605E44-004-POCS1.98 ppm
2016-05-251605N49-002-POCS1.87 ppm
2016-05-251605N49-001-POCS1.76 ppm
2016-05-261605P45-001-POCS4.85 ppm
2016-05-261605P45=002-POCS8.17 ppm
2016-06-011606137-003-POCS4.77 ppm
2016-06-021606189-002-POCS7.60 ppm
2016-06-061606440-002-POCS5.02 ppm
2016-06-061606440-001-POCS4.87 ppm
2016-06-071606537-002-POCS1.14 ppm
2016-06-141606D23-0056.95 ppm
2016-06-141606D230001-POCS4.74 ppm
2016-06-211616J98-001-POCS3.85 ppm
2016-06-211606J98-002-POCS6.66 ppm
2016-07-051607138-001-POCS1.05 ppm
2016-07-071607457-002-POCS4.80 ppm
2016-07-071607457-001-POCS4.82 ppm
2016-07-111607722-0046.64 ppm
2016-07-191607E66-002-POCS0.610 ppm
2016-07-191607E66-001-POCS1.65 ppm
2016-07-201607G25-001-POCS8.15 ppm
2016-07-201607G25-002-POCS5.98 ppm
2016-07-251607K42-003-POCS3.54 ppm
2016-07-251607K42-001-POCS3.61 ppm
2016-07-251607K42-002-POCS6.21 ppm
2016-07-251607K42-004-POCS4.44 ppm
2016-07-271607N14-001-POCS6.47 ppm
2016-07-271607N14-002-POCS6.15 ppm
2016-08-021608140-003-POCS4.28 ppm
2016-08-021608140-002-POCS4.45 ppm
2016-08-021608140-001-POCS4.63 ppm
2016-08-081608762-0046.07 ppm
2016-08-151608D68-001-POCS7.28 ppm
2016-08-151608D68-002-POCS6.02 ppm
2016-08-161608E55-004-POCS4.08 ppm
2016-08-161608E55-001-POCS3.35 ppm
2016-08-161608E55-002-POCS5.77 ppm
2016-08-161608E55-003-POCS3.36 ppm
2016-08-291608Q17-001-POCS1.72 ppm
2016-08-291608Q17-002-POCS0.700 ppm
2016-08-301608Q97-001-POCS6.71 ppm
2016-08-301608Q97-002-POCS6.74 ppm
2016-09-071609388-002-POCS4.54 ppm
2016-09-071609388-001-POCS4.50 ppm
2016-09-121609773-001-POCS7.64 ppm
2016-09-121609773-002-POCS7.59 ppm
2016-09-131609881-0016.14 ppm
2016-09-141609A97-002-POCS0.740 ppm
2016-09-151609C61-001-POCS4.82 ppm
2016-09-261609L89-001-POCS0.760 ppm
2016-09-261609L89-003-POCS0.480 ppm
2016-09-261609L89-004-POCS0.630 ppm
2016-09-261609L89-002-POCS0.690 ppm
2016-09-281609O64-002-POCS7.07 ppm
2016-09-281609O64-001-POCS7.34 ppm
2016-10-05701192002-POCS4.40 ppm
2016-10-05701192001-POCS4.20 ppm
2016-10-177021880011.60 ppm
2016-10-17702188002-POCS0.750 ppm
2016-10-187022520056.90 ppm
2016-10-1870225002-POCS6.90 ppm
2016-10-24702732003-POCS7.60 ppm
2016-10-24702732002-POCS6.80 ppm
2016-11-07703823002-POCS6.00 ppm
2016-11-07703823004-POCS4.70 ppm
2016-11-077038230033.90 ppm
2016-11-07703823001-POCS2.00 ppm
2016-11-087039400024.50 ppm
2016-11-087039400015.20 ppm
2016-11-21705053002-POCS0.00750 ppm
2016-11-217050530015.80 ppm
2016-12-057060050021.20 ppm
2016-12-057060050011.60 ppm
2016-12-127065790047.20 ppm
2016-12-147067800015.20 ppm
2016-12-207073370026.00 ppm
2016-12-207073370010.00210 ppm
2016-12-207073370040.000690 ppm
2016-12-207073370033.90 ppm
2017-01-03708178001-PRI5.60 ppm
2017-01-05708357002-POCS5.00 ppm
2017-01-05708357001-POCS5.90 ppm
2017-01-05708357001-PRI5.90 ppm
2017-01-107086910047.00 ppm
2017-01-11708894003-POCS2.10 ppm
2017-01-11708894004-POCS4.20 ppm
2017-01-11708894001-POCS2.10 ppm
2017-01-11708894002-POCS5.40 ppm
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