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EWG's Tap Water Database — 2021 UPDATE

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Nitrate

White Fence Farms Mutual Water Company

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

 

472

Samples

73

Samples exceeding legal limit (MCL)

434

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20147.10 ppm7271ND - 14.9 ppm
20156.74 ppm8684ND - 14.2 ppm
20166.48 ppm7971ND - 15.0 ppm
20176.87 ppm7871ND - 14.0 ppm
20186.74 ppm7868ND - 13.0 ppm
20196.72 ppm7969ND - 13.0 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
2014-01-073761-005-11121.04 ppm
2014-01-073761-009-111913.1 ppm
2014-01-073761-010-11087.68 ppm
2014-01-143761-010-11597.68 ppm
2014-01-213761-010-11317.68 ppm
2014-01-283761-010-11257.68 ppm
2014-02-043761-005-11321.17 ppm
2014-02-043761-009-112513.1 ppm
2014-02-043761-010-11347.68 ppm
2014-02-113761-010-11537.68 ppm
2014-02-183761-010-11297.91 ppm
2014-02-253761-010-11297.45 ppm
2014-03-043761-005-11591.42 ppm
2014-03-043761-009-114813.6 ppm
2014-03-043761-010-11578.13 ppm
2014-03-113761-004-11371.38 ppm
2014-03-113761-010-12127.68 ppm
2014-03-183761-010-11297.68 ppm
2014-03-253761-010-11287.68 ppm
2014-04-013761-005-11460.949 ppm
2014-04-013761-009-113713.8 ppm
2014-04-013761-010-11487.68 ppm
2014-04-083761-010-11577.68 ppm
2014-04-153761-010-11387.68 ppm
2014-04-223761-010-11365.65 ppm
2014-04-293761-010-11237.45 ppm
2014-05-063761-005-11560.926 ppm
2014-05-063761-009-114913.6 ppm
2014-05-063761-010-11377.45 ppm
2014-05-133761-010-11467.68 ppm
2014-05-203761-010-11257.68 ppm
2014-05-273761-010-11397.68 ppm
2014-06-033761-005-11430.926 ppm
2014-06-033761-009-113813.3 ppm
2014-06-033761-010-11457.68 ppm
2014-06-103761-010-12127.68 ppm
2014-06-173761-010-11337.68 ppm
2014-06-243761-010-11367.68 ppm
2014-07-013761-005-10550.655 ppm
2014-07-013761-009-105013.1 ppm
2014-07-013761-010-10597.68 ppm
2014-07-083761-010-12067.68 ppm
2014-07-153761-010-11297.45 ppm
2014-07-223761-010-11257.45 ppm
2014-07-293761-010-11257.23 ppm
2014-08-053761-005-1113ND
2014-08-053761-009-110613.8 ppm
2014-08-053761-010-11147.23 ppm
2014-08-123761-010-11267.45 ppm
2014-08-193761-010-11303.61 ppm
2014-08-263761-010-10597.00 ppm
2014-09-023761-005-11120.791 ppm
2014-09-023761-009-110814.9 ppm
2014-09-023761-010-11137.00 ppm
2014-09-093761-010-12367.00 ppm
2014-09-163761-010-11273.61 ppm
2014-09-233761-010-11306.78 ppm
2014-09-303761-010-11306.78 ppm
2014-10-073761-005-11270.655 ppm
2014-10-073761-009-112414.0 ppm
2014-10-073761-010-11177.23 ppm
2014-10-143761-010-12007.68 ppm
2014-10-213761-010-11237.23 ppm
2014-10-283761-010-11187.45 ppm
2014-12-023761-005-11211.42 ppm
2014-12-023761-009-113514.0 ppm
2014-12-023761-010-11227.23 ppm
2014-12-093761-004-11031.58 ppm
2014-12-093761-010-11327.23 ppm
2014-12-163761-010-12326.55 ppm
2014-12-233761-010-11036.78 ppm
2014-12-303761-010-10306.55 ppm
2015-01-063761-005-11190.700 ppm
2015-01-063761-009-111412.2 ppm
2015-01-063761-010-11215.87 ppm
2015-01-133761-010-12526.55 ppm
2015-01-203761-010-11066.78 ppm
2015-01-273761-010-11037.00 ppm
2015-02-033761-005-11061.69 ppm
2015-02-033761-009-111613.6 ppm
2015-02-033761-010-11077.23 ppm
2015-02-103761-010-11247.68 ppm
2015-02-173761-010-11107.23 ppm
2015-02-243761-010-11477.23 ppm
2015-03-033761-005-11401.65 ppm
2015-03-033761-009-112914.2 ppm
2015-03-033761-010-11387.23 ppm
2015-03-103761-010-11567.23 ppm
2015-03-173761-010-11127.00 ppm
2015-03-243761-010-11141.56 ppm
2015-03-313761-010-12196.78 ppm
2015-04-073761-005-11230.904 ppm
2015-04-073761-009-111414.2 ppm
2015-04-073761-010-11257.00 ppm
2015-04-143761-010-11357.00 ppm
2015-04-213761-010-11186.78 ppm
2015-04-283761-010-11567.23 ppm
2015-05-053761-005-11270.542 ppm
2015-05-053761-009-112214.0 ppm
2015-05-053761-010-11306.78 ppm
2015-05-123761-010-11447.00 ppm
2015-05-193761-010-11156.55 ppm
2015-05-263761-010-11167.00 ppm
2015-06-023761-005-1135ND
2015-06-023761-009-113013.8 ppm
2015-06-023761-010-11386.78 ppm
2015-06-093761-010-12006.78 ppm
2015-06-163761-010-10456.78 ppm
2015-06-233761-010-11006.78 ppm
2015-06-303761-010-11166.55 ppm
2015-07-073761-005-11110.520 ppm
2015-07-073761-009-110314.0 ppm
2015-07-073761-010-11167.00 ppm
2015-07-143761-010-11366.55 ppm
2015-07-213761-010-11036.55 ppm
2015-07-283761-010-11357.00 ppm
2015-08-043761-005-11200.971 ppm
2015-08-043761-009-111513.6 ppm
2015-08-043761-010-11227.00 ppm
2015-08-113761-010-11347.00 ppm
2015-08-183761-010-00006.78 ppm
2015-08-253761-010-11156.78 ppm
2015-09-013761-005-1143ND
2015-09-013761-009-113213.6 ppm
2015-09-013761-010-11446.78 ppm
2015-09-083761-010-11506.55 ppm
2015-09-153761-010-11256.78 ppm
2015-09-223761-010-12207.00 ppm
2015-09-293761-010-13007.00 ppm
2015-10-063761-005-09151.17 ppm
2015-10-063761-009-110913.8 ppm
2015-10-063761-010-09177.00 ppm
2015-10-133761-010-12046.78 ppm
2015-10-203761-010-12517.00 ppm
2015-10-273761-010-12002.15 ppm
2015-11-033761-005-11090.904 ppm
2015-11-033761-009-111811.3 ppm
2015-11-033761-010-11122.26 ppm
2015-11-103761-010-11535.87 ppm
2015-11-173761-010-10307.00 ppm
2015-11-243761-010-11257.10 ppm
2015-11-243761-010-11257.23 ppm
2015-12-013761-005-11231.40 ppm
2015-12-013761-005-11231.40 ppm
2015-12-013761-009-111514.0 ppm
2015-12-013761-009-111514.0 ppm
2015-12-013761-010-11247.30 ppm
2015-12-013761-010-11247.23 ppm
2015-12-083761-004-12111.90 ppm
2015-12-083761-004-12111.85 ppm
2015-12-083761-010-11507.40 ppm
2015-12-083761-010-11507.45 ppm
2015-12-153761-010-11157.20 ppm
2015-12-153761-010-11157.23 ppm
2015-12-223761-010-11407.20 ppm
2015-12-223761-010-11407.23 ppm
2015-12-293761-010-11507.10 ppm
2015-12-293761-010-11507.23 ppm
2016-01-053761-005-11021.30 ppm
2016-01-053761-009-111214.0 ppm
2016-01-053761-010-11047.00 ppm
2016-01-123761-010-11487.20 ppm
2016-01-193761-010-12007.00 ppm
2016-01-263761-010-11577.10 ppm
2016-02-023761-005-11301.10 ppm
2016-02-023761-009-112014.0 ppm
2016-02-023761-010-11347.10 ppm
2016-02-093761-010-11527.20 ppm
2016-02-163761-010-12158.10 ppm
2016-02-233761-005-11572.70 ppm
2016-02-233761-010-12007.80 ppm
2016-03-013761-005-10363.20 ppm
2016-03-013761-009-104014.0 ppm
2016-03-013761-010-10427.70 ppm
2016-03-083761-010-11466.40 ppm
2016-03-153761-010-12056.30 ppm
2016-03-223761-010-11066.90 ppm
2016-03-293761-010-11417.30 ppm
2016-04-053761-005-11240.660 ppm
2016-04-053761-009-112014.0 ppm
2016-04-053761-010-11277.30 ppm
2016-04-123761-010-12026.90 ppm
2016-04-193761-010-11596.60 ppm
2016-04-263761-010-10455.90 ppm
2016-05-033761-005-11250.540 ppm
2016-05-033761-009-111512.0 ppm
2016-05-033761-010-11304.20 ppm
2016-05-103761-010-12134.10 ppm
2016-05-173761-010-11500.660 ppm
2016-05-243761-010-11380.490 ppm
2016-05-313761-010-11590.520 ppm
2016-06-073761-005-1154ND
2016-06-073761-009-115313.0 ppm
2016-06-073761-010-1152ND
2016-06-143761-010-12446.70 ppm
2016-06-213761-009-112815.0 ppm
2016-06-213761-010-11370.470 ppm
2016-06-283761-010-12198.80 ppm
2016-07-053761-005-1133ND
2016-07-053761-009-112814.0 ppm
2016-07-053761-010-1137ND
2016-07-123761-010-12027.50 ppm
2016-07-193761-010-10567.10 ppm
2016-07-263761-010-11347.00 ppm
2016-08-023761-005-1133ND
2016-08-023761-009-113014.0 ppm
2016-08-023761-010-11367.00 ppm
2016-08-093761-010-12176.90 ppm
2016-08-163761-010-12076.60 ppm
2016-08-233761-010-11186.60 ppm
2016-08-303761-010-11396.60 ppm
2016-09-063761-005-1132ND
2016-09-063761-009-112013.0 ppm
2016-09-063761-010-11357.00 ppm
2016-09-133761-010-12107.70 ppm
2016-09-203761-010-12437.70 ppm
2016-09-273761-010-11307.80 ppm
2016-10-043761-005-1150ND
2016-10-043761-009-113213.0 ppm
2016-10-043761-010-11527.20 ppm
2016-10-113761-010-12107.50 ppm
2016-10-183761-010-11397.20 ppm
2016-10-253761-010-11407.20 ppm
2016-11-013761-005-1118ND
2016-11-013761-009-111513.0 ppm
2016-11-013761-010-11227.30 ppm
2016-11-083761-010-11557.20 ppm
2016-11-153761-010-11407.50 ppm
2016-11-223761-010-11304.70 ppm
2016-11-293761-010-11367.30 ppm
2016-12-063761-004-11301.80 ppm
2016-12-063761-005-11530.510 ppm
2016-12-063761-009-114613.0 ppm
2016-12-063761-010-11577.50 ppm
2016-12-133761-010-11507.60 ppm
2016-12-203761-010-11427.30 ppm
2016-12-273761-010-12007.70 ppm
2017-01-033761-005-11450.440 ppm
2017-01-033761-009-115413.0 ppm
2017-01-033761-010-11487.70 ppm
2017-01-103761-010-12068.10 ppm
2017-01-173761-010-11497.30 ppm
2017-01-243761-010-11327.60 ppm
2017-01-313761-010-11238.00 ppm
2017-02-073761-005-12041.20 ppm
2017-02-073761-009-121913.0 ppm
2017-02-073761-010-12037.40 ppm
2017-02-143761-010-11537.10 ppm
2017-02-213761-010-11417.50 ppm
2017-02-283761-010-11307.20 ppm
2017-03-073761-005-11360.640 ppm
2017-03-073761-009-114314.0 ppm
2017-03-073761-010-11297.20 ppm
2017-03-143761-010-12137.10 ppm
2017-03-213761-010-11467.00 ppm
2017-03-283761-004-11502.50 ppm
2017-03-283761-010-12167.10 ppm
2017-04-043761-005-1113ND
2017-04-043761-009-110613.0 ppm
2017-04-043761-010-11187.00 ppm
2017-04-113761-010-12166.80 ppm
2017-04-183761-010-11506.90 ppm
2017-04-253761-010-11567.10 ppm
2017-05-023761-005-1126ND
2017-05-023761-009-111714.0 ppm
2017-05-023761-010-11236.80 ppm
2017-05-093761-010-12126.90 ppm
2017-05-163761-010-12286.70 ppm
2017-05-233761-010-11126.60 ppm
2017-05-303761-010-13067.00 ppm
2017-06-063761-005-1152ND
2017-06-063761-009-114313.0 ppm
2017-06-063761-010-11586.70 ppm
2017-06-133761-010-12297.00 ppm
2017-06-203761-010-11086.50 ppm
2017-06-273761-010-12196.70 ppm
2017-07-053761-005-1152ND
2017-07-053761-009-114313.0 ppm
2017-07-053761-010-11566.90 ppm
2017-07-113761-010-12136.70 ppm
2017-07-183761-010-14226.60 ppm
2017-07-253761-010-11307.10 ppm
2017-08-013761-005-1136ND
2017-08-013761-009-113113.0 ppm
2017-08-013761-010-11257.10 ppm
2017-08-083761-010-10576.80 ppm
2017-08-153761-010-11226.80 ppm
2017-08-223761-010-12347.20 ppm
2017-08-293761-010-11377.50 ppm
2017-09-053761-005-1147ND
2017-09-053761-009-114113.0 ppm
2017-09-053761-010-11457.30 ppm
2017-09-123761-010-12007.10 ppm
2017-09-193761-010-11547.30 ppm
2017-09-263761-010-12287.30 ppm
2017-10-033761-005-1130ND
2017-10-033761-009-112713.0 ppm
2017-10-033761-010-11327.10 ppm
2017-10-103761-010-12155.50 ppm
2017-10-173761-010-11517.20 ppm
2017-10-243761-010-11257.20 ppm
2017-10-313761-010-12257.20 ppm
2017-11-073761-005-11360.480 ppm
2017-11-073761-009-112913.0 ppm
2017-11-073761-010-11167.30 ppm
2017-11-143761-010-11387.10 ppm
2017-11-213761-010-11107.40 ppm
2017-11-283761-010-11337.10 ppm
2017-12-053761-005-11520.780 ppm
2017-12-053761-009-114613.0 ppm
2017-12-053761-010-11587.70 ppm
2017-12-123761-004-11582.90 ppm
2017-12-123761-010-12307.00 ppm
2017-12-193761-010-11197.20 ppm
2017-12-263761-010-13327.30 ppm
2018-01-023761-005-11190.640 ppm
2018-01-023761-009-110813.0 ppm
2018-01-023761-010-11267.20 ppm
2018-01-093761-010-11497.30 ppm
2018-01-163761-010-11427.50 ppm
2018-01-233761-010-11207.20 ppm
2018-01-303761-010-11207.30 ppm
2018-02-063761-005-10490.900 ppm
2018-02-063761-009-105613.0 ppm
2018-02-063761-010-10517.20 ppm
2018-02-133761-010-11077.10 ppm
2018-02-203761-010-11177.30 ppm
2018-02-273761-010-11317.00 ppm
2018-03-063761-005-1159ND
2018-03-063761-009-115213.0 ppm
2018-03-063761-010-11587.10 ppm
2018-03-133761-010-1235ND
2018-03-203761-010-11050.730 ppm
2018-03-273761-010-12041.50 ppm
2018-04-033761-005-1048ND
2018-04-033761-009-104513.0 ppm
2018-04-033761-010-10557.10 ppm
2018-04-103761-010-11517.20 ppm
2018-04-173761-010-12057.10 ppm
2018-04-243761-010-11507.10 ppm
2018-05-013761-005-11440.580 ppm
2018-05-013761-009-113813.0 ppm
2018-05-013761-010-11427.00 ppm
2018-05-083761-010-10477.00 ppm
2018-05-153761-010-11476.60 ppm
2018-05-223761-010-10597.30 ppm
2018-05-293761-010-11477.90 ppm
2018-06-053761-005-1137ND
2018-06-053761-009-113313.0 ppm
2018-06-053761-010-11347.30 ppm
2018-06-123761-010-11307.60 ppm
2018-06-193761-010-11267.50 ppm
2018-06-263761-010-11507.70 ppm
2018-07-033761-005-1128ND
2018-07-033761-009-112113.0 ppm
2018-07-033761-010-11317.70 ppm
2018-07-103761-010-11187.90 ppm
2018-07-173761-010-11487.60 ppm
2018-07-243761-010-11157.90 ppm
2018-07-313761-010-11077.50 ppm
2018-08-073761-005-1105ND
2018-08-073761-009-105713.0 ppm
2018-08-073761-010-11007.20 ppm
2018-08-143761-010-11297.50 ppm
2018-08-213761-010-11137.40 ppm
2018-08-283761-010-12027.30 ppm
2018-09-043761-005-11302.70 ppm
2018-09-043761-009-111513.0 ppm
2018-09-043761-010-11297.20 ppm
2018-09-113761-010-12067.60 ppm
2018-09-183761-010-12137.20 ppm
2018-09-253761-005-1138ND
2018-09-253761-010-11367.30 ppm
2018-10-023761-005-1056ND
2018-10-023761-009-104513.0 ppm
2018-10-023761-010-10517.40 ppm
2018-10-093761-010-10597.30 ppm
2018-10-163761-010-11467.50 ppm
2018-10-233761-010-10507.70 ppm
2018-10-303761-010-11067.60 ppm
2018-11-063761-005-1055ND
2018-11-063761-009-104413.0 ppm
2018-11-063761-010-10497.90 ppm
2018-11-133761-010-11267.40 ppm
2018-11-203761-010-11507.50 ppm
2018-11-273761-010-11527.10 ppm
2018-12-043761-005-1121ND
2018-12-043761-009-110913.0 ppm
2018-12-043761-010-11147.10 ppm
2018-12-113761-004-11443.40 ppm
2018-12-113761-010-10577.00 ppm
2018-12-183761-010-12016.70 ppm
2018-12-263761-010-10587.30 ppm
2019-01-023761-005-11190.690 ppm
2019-01-023761-009-111212.0 ppm
2019-01-023761-010-11167.40 ppm
2019-01-083761-010-11157.80 ppm
2019-01-153761-010-11327.70 ppm
2019-01-223761-010-11338.00 ppm
2019-01-293761-010-11307.80 ppm
2019-02-053761-005-11520.400 ppm
2019-02-053761-009-114313.0 ppm
2019-02-053761-010-11477.80 ppm
2019-02-123761-010-11297.80 ppm
2019-02-193761-010-11377.70 ppm
2019-02-263761-010-11138.00 ppm
2019-03-053761-005-11021.20 ppm
2019-03-053761-009-105012.0 ppm
2019-03-053761-010-10597.90 ppm
2019-03-123761-010-11387.70 ppm
2019-03-193761-010-10597.60 ppm
2019-03-263761-010-11207.30 ppm
2019-04-023761-005-1109ND
2019-04-023761-009-110013.0 ppm
2019-04-023761-010-11047.10 ppm
2019-04-093761-010-11057.50 ppm
2019-04-163761-010-12158.10 ppm
2019-04-233761-010-11187.80 ppm
2019-04-303761-010-11397.80 ppm
2019-05-073761-005-1108ND
2019-05-073761-009-110112.0 ppm
2019-05-073761-010-11057.90 ppm
2019-05-143761-010-11058.10 ppm
2019-05-213761-010-11247.80 ppm
2019-05-283761-010-11327.50 ppm
2019-06-043761-005-1100ND
2019-06-043761-010-10597.40 ppm
2019-06-113761-010-11077.20 ppm
2019-06-183761-010-11387.10 ppm
2019-06-253761-009-114813.0 ppm
2019-06-253761-010-11407.00 ppm
2019-07-023761-005-1100ND
2019-07-023761-009-105112.0 ppm
2019-07-023761-010-10587.30 ppm
2019-07-093761-010-11077.50 ppm
2019-07-163761-010-11427.10 ppm
2019-07-233761-010-10487.10 ppm
2019-07-303761-010-11227.10 ppm
2019-08-063761-005-1148ND
2019-08-063761-009-114312.0 ppm
2019-08-063761-010-11457.30 ppm
2019-08-133761-010-11207.80 ppm
2019-08-203761-010-11478.00 ppm
2019-08-273761-010-11347.50 ppm
2019-09-033761-005-1119ND
2019-09-033761-009-111213.0 ppm
2019-09-033761-010-11187.90 ppm
2019-09-103761-004-11303.70 ppm
2019-09-103761-010-12047.40 ppm
2019-09-173761-010-11408.10 ppm
2019-09-243761-010-12157.20 ppm
2019-10-013761-005-1129ND
2019-10-013761-009-112212.0 ppm
2019-10-013761-010-11268.60 ppm
2019-10-083761-010-11457.30 ppm
2019-10-153761-010-1154ND
2019-10-223761-010-11067.50 ppm
2019-10-293761-010-11317.30 ppm
2019-11-053761-005-1129ND
2019-11-053761-009-112012.0 ppm
2019-11-053761-010-11237.10 ppm
2019-11-123761-010-11417.20 ppm
2019-11-193761-010-10587.30 ppm
2019-11-263761-010-11457.60 ppm
2019-12-033761-005-1154ND
2019-12-033761-009-114112.0 ppm
2019-12-033761-010-11487.40 ppm
2019-12-103761-004-11334.20 ppm
2019-12-103761-010-11527.30 ppm
2019-12-173761-010-11380.550 ppm
2019-12-243761-010-11270.540 ppm
2019-12-313761-010-10400.960 ppm