Nitrate
City of Lorain
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.358 ppm | 12 | 10 | ND - 0.780 ppm |
2015 | 0.426 ppm | 12 | 11 | ND - 0.940 ppm |
2016 | 0.444 ppm | 12 | 9 | ND - 1.36 ppm |
2017 | 0.484 ppm | 12 | 10 | ND - 1.50 ppm |
2018 | 0.511 ppm | 12 | 11 | ND - 1.14 ppm |
2019 | 0.678 ppm | 9 | 8 | ND - 1.08 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 |
---|---|---|
2014-01-07 | 14-10167-08 | 0.490 ppm |
2014-02-04 | 14-11281-01 | 0.230 ppm |
2014-03-04 | 14-12481-04 | 0.440 ppm |
2014-04-02 | 14-13975-04 | 0.770 ppm |
2014-05-06 | 14-15356-04A | 0.780 ppm |
2014-06-03 | 14-16794-01 | 0.280 ppm |
2014-07-03 | 14-18658-06 | 0.660 ppm |
2014-08-05 | 14-20129-04 | 0.260 ppm |
2014-09-04 | 14-22144-01 | 0.160 ppm |
2014-10-07 | 14-23785-04 | ND |
2014-11-04 | 14-25062-01 | 0.220 ppm |
2014-12-02 | 14-26292-04 | ND |
2015-01-05 | 15-10098-04 | 0.400 ppm |
2015-02-03 | 15-11265-01 | 0.360 ppm |
2015-03-03 | 15-12432-01 | 0.400 ppm |
2015-04-02 | 15-14002-03 | 0.570 ppm |
2015-05-05 | 15-15594-03 | 0.780 ppm |
2015-06-02 | 15-17150-03 | 0.940 ppm |
2015-07-02 | 15-18999-03 | 0.840 ppm |
2015-08-04 | 15-20780-03 | 0.310 ppm |
2015-09-03 | 15-22854-03 | ND |
2015-10-06 | 15-24506-03 | 0.130 ppm |
2015-11-03 | 15-26139-03 | 0.200 ppm |
2015-12-03 | 15-27638-03 | 0.180 ppm |
2016-01-05 | 16-10154-03 | 0.450 ppm |
2016-02-02 | 16-11439-03 | 0.380 ppm |
2016-03-03 | 16-13072-03 | 0.890 ppm |
2016-04-05 | 16-14717-03 | 0.560 ppm |
2016-05-03 | 16-16262-03A | 1.36 ppm |
2016-06-02 | 16-17910-03 | 0.730 ppm |
2016-07-07 | 16-20319-03 | 0.550 ppm |
2016-08-02 | 16-21938-03 | 0.300 ppm |
2016-09-01 | 16-24352-01 | 0.110 ppm |
2016-10-04 | 16-26590-03 | ND |
2016-11-03 | 16-28656-03 | ND |
2016-12-01 | 16-30066-03 | ND |
2017-01-05 | 17-10287-03 | 0.270 ppm |
2017-02-02 | 17-11829-03 | 0.830 ppm |
2017-03-02 | 17-13627-03 | 1.50 ppm |
2017-04-04 | 17-15571-03 | 0.880 ppm |
2017-05-04 | 17-17747-03A | 0.860 ppm |
2017-06-01 | 17-19439-03 | 0.780 ppm |
2017-07-06 | 17-22102-04 | 0.210 ppm |
2017-08-03 | 17-24472-03 | 0.110 ppm |
2017-09-07 | 17-27125-03 | ND |
2017-10-05 | 17-29293-03 | ND |
2017-11-02 | 17-31229-03 | 0.150 ppm |
2017-12-07 | 17-33444-03 | 0.220 ppm |
2018-01-04 | 18-10317-03 | 0.330 ppm |
2018-02-01 | 18-11871-01 | 0.570 ppm |
2018-03-01 | M18-13603-01 | 0.960 ppm |
2018-04-04 | 18-16202-03 | 0.960 ppm |
2018-05-03 | 18-18242-03A | 1.14 ppm |
2018-06-07 | 18-21117-02 | 0.590 ppm |
2018-07-05 | 18-23519-01 | 0.580 ppm |
2018-08-02 | 18-26102-01 | 0.290 ppm |
2018-09-06 | 18-29136-01 | ND |
2018-10-04 | 18-31819-01 | 0.130 ppm |
2018-11-01 | 18-33917-01 | 0.160 ppm |
2018-12-06 | 18-36434-01 | 0.420 ppm |
2019-01-03 | 19-10208-01 | 0.640 ppm |
2019-02-07 | 19-12602-03 | 0.660 ppm |
2019-03-07 | 19-14567-01 | 0.990 ppm |
2019-04-04 | 19-16701-01 | 1.08 ppm |
2019-05-02 | 19-18666-03A | 0.930 ppm |
2019-06-06 | 19-21504-01 | 0.600 ppm |
2019-07-02 | 19-23824-01 | 0.850 ppm |
2019-08-01 | M19-26405-01 | 0.350 ppm |
2019-09-05 | 19-29716-01 | ND |