Nitrate and nitrite

Fostoria City

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	N/A	0	0	N/A
2014	0.444 ppm	12	10	ND - 1.10 ppm
2015	1.07 ppm	12	12	0.500 ppm - 2.04 ppm
2016	0.829 ppm	12	10	ND - 1.74 ppm
2017	1.61 ppm	12	12	0.250 ppm - 2.89 ppm
2018	0.908 ppm	12	11	ND - 1.90 ppm
2019	1.12 ppm	10	10	0.510 ppm - 1.53 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
2014-01-03	14-10448-07	0.660 ppm
2014-02-04	14-11524-03	0.500 ppm
2014-03-05	14-12770-03	0.570 ppm
2014-04-02	14-14053-07A	0.730 ppm
2014-05-01	14-15630-03A	1.10 ppm
2014-06-02	14-17111-03A	0.570 ppm
2014-07-02	14-18722-03	0.300 ppm
2014-08-01	14-20490-03	0.180 ppm
2014-09-03	14-22121-03	ND
2014-10-01	14-23651-03	ND
2014-11-03	14-25346-03	0.350 ppm
2014-12-03	14-26619-03	0.370 ppm
2015-01-06	15-10300-07	1.40 ppm
2015-02-04	15-11472-03	0.990 ppm
2015-03-04	15-12686-03	0.760 ppm
2015-04-01	15-14087-03	1.53 ppm
2015-05-04	15-15916-04	1.47 ppm
2015-06-03	15-17495-03A	2.04 ppm
2015-07-01	15-19095-07	1.28 ppm
2015-08-03	15-21215-03	0.870 ppm
2015-09-02	15-22906-03	0.540 ppm
2015-10-01	15-24427-03	0.640 ppm
2015-11-04	15-26406-03A	0.500 ppm
2015-12-02	15-27734-03	0.760 ppm
2016-01-05	16-10418-07	0.740 ppm
2016-02-03	16-11753-03	1.18 ppm
2016-03-02	16-13136-03	1.42 ppm
2016-04-05	16-14997-03A	0.730 ppm
2016-05-04	16-16541-03A	1.74 ppm
2016-06-01	16-17976-03	1.52 ppm
2016-07-05	16-20350-03	1.47 ppm
2016-08-03	16-22465-03B	0.670 ppm
2016-09-06	16-24913-03A	ND
2016-10-05	16-26939-03A	0.350 ppm
2016-11-02	16-28738-03A	ND
2016-12-05	16-30704-03	0.130 ppm
2017-01-04	17-10376-03	0.250 ppm
2017-02-01	17-11912-03	2.15 ppm
2017-03-01	17-13747-03	1.37 ppm
2017-04-05	17-15975-04A	2.29 ppm
2017-05-03	17-17862-03B	2.08 ppm
2017-06-05	17-20209-03	2.89 ppm
2017-07-05	17-22254-03	2.77 ppm
2017-08-02	M17-24573-03A	1.60 ppm
2017-09-06	17-27211-03	1.04 ppm
2017-10-04	17-29383-03A	1.29 ppm
2017-11-01	17-31308-03	0.800 ppm
2017-12-04	17-33557-03	0.830 ppm
2018-01-03	18-10385-03	1.02 ppm
2018-02-05	18-13354-03	1.12 ppm
2018-03-05	18-14330-03	1.73 ppm
2018-04-04	18-16311-03A	1.90 ppm
2018-05-02	18-18320-03A	1.02 ppm
2018-06-04	18-21273-03	0.950 ppm
2018-07-03	18-23675-03	1.03 ppm
2018-08-01	18-26189-03A	0.610 ppm
2018-09-04	18-29260-03	0.170 ppm
2018-10-02	18-31877-03	ND
2018-11-07	18-34630-03	0.570 ppm
2018-12-04	18-36592-03	0.770 ppm
2019-01-02	19-10341-03	1.53 ppm
2019-02-04	19-12638-03	1.35 ppm
2019-03-05	19-14613-03	1.53 ppm
2019-04-03	19-16766-03	1.12 ppm
2019-05-01	19-18766-03A	1.17 ppm
2019-06-05	19-21679-03	1.53 ppm
2019-07-01	19-23959-03	1.01 ppm
2019-08-07	19-27270-03	0.670 ppm
2019-09-04	19-29824-03	0.820 ppm
2019-10-02	19-32333-03	0.510 ppm