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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

City of Edmond - Arcadia Lake

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

286

Samples

0

Samples exceeding legal limit (MCL)

203

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.646 ppm40400.280 ppm - 1.84 ppm
20130.648 ppm49490.260 ppm - 1.84 ppm
20140.262 ppm509ND - 2.26 ppm
20150.210 ppm508ND - 2.06 ppm
20160.725 ppm49490.242 ppm - 2.06 ppm
20170.703 ppm48480.280 ppm - 2.21 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2012-11-292K29026-010.680 ppm
2012-11-292K29026-020.700 ppm
2012-11-292K29026-031.56 ppm
2012-11-292K29026-040.540 ppm
2012-11-292K29026-050.510 ppm
2012-11-292K29026-060.340 ppm
2012-11-292K29026-070.520 ppm
2012-11-292K29026-080.290 ppm
2012-12-172L17041-010.510 ppm
2012-12-172L17041-020.520 ppm
2012-12-172L17041-030.750 ppm
2012-12-172L17041-040.340 ppm
2012-12-172L17041-050.530 ppm
2012-12-172L17041-060.710 ppm
2012-12-172L17041-071.07 ppm
2012-12-172L17041-080.720 ppm
2012-12-172L17041-090.300 ppm
2012-12-172L17041-100.300 ppm
2012-12-172L17041-111.13 ppm
2012-12-182L18028-010.280 ppm
2012-12-182L18028-020.850 ppm
2012-12-182L18028-030.520 ppm
2012-12-182L18028-040.560 ppm
2012-12-182L18028-050.330 ppm
2012-12-182L18028-060.330 ppm
2012-12-182L18028-070.830 ppm
2012-12-182L18028-080.520 ppm
2012-12-182L18028-090.690 ppm
2012-12-192L19034-010.770 ppm
2012-12-192L19034-020.700 ppm
2012-12-192L19034-030.610 ppm
2012-12-192L19034-040.690 ppm
2012-12-202L20040-010.650 ppm
2012-12-202L20040-021.16 ppm
2012-12-202L20040-030.310 ppm
2012-12-202L20040-040.620 ppm
2012-12-212L21012-010.660 ppm
2012-12-212L21012-021.84 ppm
2012-12-212L21012-030.580 ppm
2012-12-272L27015-010.339 ppm
2013-03-253C25013-010.730 ppm
2013-03-253C25013-020.260 ppm
2013-03-253C25013-030.560 ppm
2013-03-253C25013-040.560 ppm
2013-03-253C25013-050.700 ppm
2013-03-263C26016-010.870 ppm
2013-03-263C26016-020.280 ppm
2013-03-263C26016-030.290 ppm
2013-04-023D02023-010.710 ppm
2013-04-023D02023-020.350 ppm
2013-04-023D02023-030.550 ppm
2013-04-023D02023-040.590 ppm
2013-04-023D02023-050.390 ppm
2013-04-183D18032-010.301 ppm
2013-04-183D18032-020.622 ppm
2013-04-183D18032-031.01 ppm
2013-04-183D18032-040.974 ppm
2013-04-183D18032-050.272 ppm
2013-04-183D18032-060.563 ppm
2013-04-293D29011-010.760 ppm
2013-04-293D29011-020.720 ppm
2013-04-293D29011-030.600 ppm
2013-04-293D29011-040.700 ppm
2013-04-293D29011-050.740 ppm
2013-04-303D30015-020.373 ppm
2013-04-303D30015-030.641 ppm
2013-04-303D30015-040.417 ppm
2013-05-023E02021-010.805 ppm
2013-05-023E02021-021.67 ppm
2013-05-023E02021-030.611 ppm
2013-05-023E02021-040.278 ppm
2013-05-023E02021-050.455 ppm
2013-05-023E02021-061.67 ppm
2013-05-023E02021-070.733 ppm
2013-05-033E03033-021.08 ppm
2013-05-033E03033-030.290 ppm
2013-05-033E03033-040.660 ppm
2013-05-033E03033-050.650 ppm
2013-05-033E03033-060.540 ppm
2013-05-033E03033-070.770 ppm
2013-05-063E06025-010.300 ppm
2013-05-063E06025-020.350 ppm
2013-05-063E06025-030.750 ppm
2013-05-063E06025-040.690 ppm
2013-05-063E06025-050.710 ppm
2013-05-153E15040-011.84 ppm
2013-05-153E15040-020.530 ppm
2013-08-293H30023-010.460 ppm
2013-12-313L31020-010.399 ppm
2014-10-271346776ND
2014-10-271346777ND
2014-10-271346778ND
2014-10-271346779ND
2014-10-271346780ND
2014-10-271346781ND
2014-10-281346782ND
2014-10-281346783ND
2014-10-281346784ND
2014-10-281346785ND
2014-10-281346796ND
2014-10-2813467971.08 ppm
2014-10-281346798ND
2014-10-281346799ND
2014-10-281346800ND
2014-10-2813468011.10 ppm
2014-10-281346802ND
2014-10-281346803ND
2014-10-291346786ND
2014-10-291346787ND
2014-10-291346788ND
2014-10-291346789ND
2014-10-291346790ND
2014-10-291346791ND
2014-10-291346792ND
2014-10-291346793ND
2014-10-2913467941.80 ppm
2014-10-291346795ND
2014-10-291346804ND
2014-10-291346806ND
2014-10-301346768ND
2014-10-301346769ND
2014-10-301346770ND
2014-10-301346771ND
2014-10-301346772ND
2014-10-301346773ND
2014-10-301346807ND
2014-10-301346808ND
2014-10-3013468091.36 ppm
2014-10-301346810ND
2014-10-3013468111.98 ppm
2014-10-301346812ND
2014-10-301346813ND
2014-10-301346814ND
2014-10-3013468152.26 ppm
2014-10-311346774ND
2014-10-311346775ND
2014-11-2613537381.15 ppm
2014-11-2613537431.30 ppm
2014-11-2613537441.05 ppm
2015-03-301382834ND
2015-04-2713919371.02 ppm
2015-04-271391938ND
2015-04-271391939ND
2015-04-271391940ND
2015-04-271391941ND
2015-04-271391942ND
2015-04-271391943ND
2015-04-271391944ND
2015-04-271391945ND
2015-04-2713919461.000 ppm
2015-04-281391947ND
2015-04-281391948ND
2015-04-2813919491.09 ppm
2015-04-2813919501.16 ppm
2015-04-281391951ND
2015-04-281391952ND
2015-04-281391953ND
2015-04-281391954ND
2015-04-281391955ND
2015-04-281391956ND
2015-04-281391957ND
2015-04-2813919582.06 ppm
2015-04-291391959ND
2015-04-2913919601.03 ppm
2015-04-291391961ND
2015-04-291391962ND
2015-04-291391963ND
2015-04-291391964ND
2015-04-291391965ND
2015-04-2913919661.34 ppm
2015-04-291391967ND
2015-04-291391968ND
2015-04-291391980ND
2015-04-291391981ND
2015-04-291391982ND
2015-04-301391969ND
2015-04-301391970ND
2015-04-301391971ND
2015-04-301391972ND
2015-04-301391973ND
2015-04-301391974ND
2015-04-301391975ND
2015-04-301391976ND
2015-04-301391977ND
2015-04-301391978ND
2015-06-1814041611.78 ppm
2015-06-181404169ND
2015-06-181404170ND
2015-06-251405945ND
2016-04-0414832071.37 ppm
2016-04-0414832081.21 ppm
2016-04-0414832091.73 ppm
2016-04-0514832101.24 ppm
2016-04-0514832110.257 ppm
2016-04-0514832120.314 ppm
2016-04-0514832130.540 ppm
2016-04-0514832141.04 ppm
2016-04-0514832150.242 ppm
2016-04-0514832160.252 ppm
2016-04-0614832170.267 ppm
2016-04-0614832180.395 ppm
2016-04-0614832190.438 ppm
2016-04-0614832200.588 ppm
2016-04-0714832210.616 ppm
2016-04-0714832221.19 ppm
2016-04-0714832230.480 ppm
2016-04-0714832240.298 ppm
2016-04-0714832250.459 ppm
2016-04-1114832262.06 ppm
2016-04-1114832270.762 ppm
2016-04-1114832280.298 ppm
2016-04-1114832290.995 ppm
2016-04-1214832301.08 ppm
2016-04-1214832310.972 ppm
2016-04-1214832320.968 ppm
2016-04-1314832331.01 ppm
2016-04-1314832340.950 ppm
2016-04-1314832350.880 ppm
2016-04-1314832360.863 ppm
2016-04-1414868180.649 ppm
2016-04-1414868190.560 ppm
2016-04-1414868350.552 ppm
2016-04-1814868200.301 ppm
2016-04-1814868210.326 ppm
2016-04-1814868220.367 ppm
2016-04-1814868231.04 ppm
2016-04-2014868250.316 ppm
2016-04-2014868260.916 ppm
2016-04-2514868271.70 ppm
2016-04-2514868280.367 ppm
2016-04-2514868290.410 ppm
2016-04-2514868310.574 ppm
2016-04-2614868320.914 ppm
2016-04-2714868330.407 ppm
2016-04-2814868300.516 ppm
2016-04-2814868340.827 ppm
2016-04-2814868360.543 ppm
2016-07-2815112900.470 ppm
2017-03-067C06015-011.30 ppm
2017-03-067C06015-020.570 ppm
2017-03-067C06015-030.480 ppm
2017-03-067C06015-042.21 ppm
2017-03-067C06015-050.560 ppm
2017-03-077C07059-011.11 ppm
2017-03-077C07059-021.45 ppm
2017-03-077C07059-030.720 ppm
2017-03-077C07059-040.880 ppm
2017-03-077C07059-051.06 ppm
2017-03-087C08038-010.490 ppm
2017-03-087C08038-020.500 ppm
2017-03-087C08038-030.540 ppm
2017-03-087C08038-040.830 ppm
2017-03-087C08038-050.630 ppm
2017-03-097C09018-010.940 ppm
2017-03-097C09018-020.410 ppm
2017-03-097C09018-030.500 ppm
2017-03-097C09018-040.480 ppm
2017-03-097C09018-050.590 ppm
2017-03-107C10012-010.490 ppm
2017-03-107C10012-020.420 ppm
2017-03-107C10012-030.410 ppm
2017-03-107C10012-040.440 ppm
2017-03-107C10012-050.790 ppm
2017-03-107C10012-060.430 ppm
2017-03-137C13013-010.720 ppm
2017-03-137C13013-020.828 ppm
2017-03-137C13013-030.595 ppm
2017-03-207C20037-010.460 ppm
2017-03-207C20037-020.540 ppm
2017-03-207C20037-030.670 ppm
2017-03-207C20037-040.480 ppm
2017-03-207C20037-050.360 ppm
2017-03-207C20037-060.540 ppm
2017-03-207C20037-070.620 ppm
2017-03-207C20037-080.780 ppm
2017-03-207C20037-090.930 ppm
2017-03-207C20037-100.280 ppm
2017-03-207C20037-110.320 ppm
2017-03-207C20037-121.57 ppm
2017-03-217C21038-010.650 ppm
2017-03-217C21038-020.400 ppm
2017-03-217C21038-030.490 ppm
2017-03-217C21038-040.680 ppm
2017-03-217C21038-050.510 ppm
2017-04-147D14015-010.980 ppm
2017-04-257D25019-011.11 ppm