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.
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 |