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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

Put-in-bay Village

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.

 

76

Samples

0

Samples exceeding legal limit (MCL)

68

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.567 ppm1210ND - 1.31 ppm
20130.651 ppm1211ND - 1.81 ppm
20140.713 ppm12120.120 ppm - 3.19 ppm
20150.554 ppm1312ND - 1.92 ppm
20161.67 ppm12120.220 ppm - 6.45 ppm
20170.515 ppm1514ND - 1.17 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
2012-01-3012-11064-010.990 ppm
2012-02-2612-12382-011.17 ppm
2012-03-2312-13263-011.31 ppm
2012-04-2512-14582-021.09 ppm
2012-05-2412-15921-020.410 ppm
2012-06-2812-17735-010.240 ppm
2012-07-3012-19180-010.210 ppm
2012-08-1512-20074-02ND
2012-09-2012-22005-050.400 ppm
2012-10-2312-23610-04ND
2012-11-3012-25328-010.580 ppm
2012-12-2012-26331-010.400 ppm
2013-01-2413-11022-010.530 ppm
2013-02-2513-12257-010.880 ppm
2013-03-1813-13378-020.690 ppm
2013-04-2413-15043-011.14 ppm
2013-05-2313-16373-031.26 ppm
2013-06-1713-17673-021.81 ppm
2013-07-2413-19655-010.500 ppm
2013-08-1513-20764-020.430 ppm
2013-09-2413-22884-01ND
2013-10-2213-24288-010.140 ppm
2013-11-2613-25852-010.130 ppm
2013-12-1213-26608-030.300 ppm
2014-01-2314-11046-010.500 ppm
2014-02-2414-12141-010.510 ppm
2014-03-0714-12680-060.370 ppm
2014-04-1614-14750-011.33 ppm
2014-05-1214-15712-010.500 ppm
2014-06-0214-16818-040.730 ppm
2014-07-2114-19537-013.19 ppm
2014-08-2114-21382-020.480 ppm
2014-09-2414-23111-010.120 ppm
2014-10-1514-24216-010.340 ppm
2014-11-2414-26026-010.160 ppm
2014-12-0714-26643-020.330 ppm
2015-01-1515-10633-010.600 ppm
2015-02-1815-12062-010.570 ppm
2015-03-0415-12590-020.510 ppm
2015-04-0115-13979-010.720 ppm
2015-05-0415-15456-01A1.05 ppm
2015-06-0115-16989-030.480 ppm
2015-07-2715-20427-011.92 ppm
2015-08-1715-21787-020.410 ppm
2015-09-2915-24262-11ND
2015-10-1915-25355-03A0.160 ppm
2015-11-1915-27081-010.240 ppm
2015-12-0415-27794-010.260 ppm
2015-12-2215-28701-020.280 ppm
2016-01-2116-11017-010.400 ppm
2016-02-1716-12342-010.720 ppm
2016-03-2116-14076-020.590 ppm
2016-04-2916-16195-010.990 ppm
2016-05-3116-17826-010.990 ppm
2016-06-2116-19306-020.760 ppm
2016-07-2716-21584-010.480 ppm
2016-08-2316-23819-024.67 ppm
2016-09-1316-25073-033.41 ppm
2016-10-2016-27770-020.220 ppm
2016-11-2816-29860-016.45 ppm
2016-12-0516-30236-040.370 ppm
2017-01-2317-11229-010.650 ppm
2017-02-0217-11960-010.560 ppm
2017-03-0117-13519-040.700 ppm
2017-04-2517-18789-010.780 ppm
2017-05-2917-19696-010.800 ppm
2017-06-0617-19696-021.17 ppm
2017-07-0517-21875-020.650 ppm
2017-07-2517-23615-020.560 ppm
2017-08-0117-24085-020.510 ppm
2017-09-2117-28239-020.390 ppm
2017-09-2817-28716-030.380 ppm
2017-10-1617-29998-020.160 ppm
2017-11-0217-31167-01ND
2017-11-1317-31889-010.190 ppm
2017-12-0317-32913-020.220 ppm