Nitrate
Ironton PWS
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 | 0.913 ppm | 12 | 12 | 0.500 ppm - 1.70 ppm |
| 2015 | 0.857 ppm | 12 | 12 | 0.420 ppm - 2.40 ppm |
| 2016 | 0.771 ppm | 12 | 12 | 0.500 ppm - 1.30 ppm |
| 2017 | 0.818 ppm | 12 | 12 | 0.560 ppm - 1.14 ppm |
| 2018 | 0.805 ppm | 12 | 12 | 0.600 ppm - 0.980 ppm |
| 2019 | 0.908 ppm | 10 | 10 | 0.672 ppm - 1.14 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 |
|---|---|---|
| 2014-01-08 | A140170236 | 0.950 ppm |
| 2014-02-12 | A140136432 | 1.22 ppm |
| 2014-03-12 | A140182858 | 0.500 ppm |
| 2014-04-09 | A140194165 | 0.710 ppm |
| 2014-05-14 | A140201630 | 1.10 ppm |
| 2014-06-11 | A140170237 | 1.30 ppm |
| 2014-07-09 | A140201631 | 1.70 ppm |
| 2014-08-13 | A140218618 | 0.720 ppm |
| 2014-09-10 | A140218619 | 0.720 ppm |
| 2014-10-15 | A140224163 | 0.550 ppm |
| 2014-11-12 | A140207053 | 0.800 ppm |
| 2014-12-10 | A140243008 | 0.680 ppm |
| 2015-01-14 | A150262784 | 0.600 ppm |
| 2015-02-11 | A150262785 | 0.740 ppm |
| 2015-03-11 | A150249076 | 0.680 ppm |
| 2015-04-08 | A150112328 | 0.630 ppm |
| 2015-05-13 | A150288261 | 0.420 ppm |
| 2015-06-10 | A150288264 | 0.610 ppm |
| 2015-07-08 | A150288128 | 1.08 ppm |
| 2015-08-12 | A150309238 | 0.640 ppm |
| 2015-09-09 | A150309241 | 0.460 ppm |
| 2015-10-14 | A150334662 | 0.620 ppm |
| 2015-11-11 | A150322599 | 2.40 ppm |
| 2015-12-09 | A150345043 | 1.40 ppm |
| 2016-01-13 | A160353724 | 1.30 ppm |
| 2016-02-10 | A160357805 | 0.790 ppm |
| 2016-03-09 | A160361168 | 0.720 ppm |
| 2016-04-06 | A160376935 | 0.780 ppm |
| 2016-05-11 | A160343045 | 0.540 ppm |
| 2016-06-08 | A160343044 | 0.600 ppm |
| 2016-07-13 | A160403505 | 0.820 ppm |
| 2016-08-10 | A160418768 | 0.760 ppm |
| 2016-09-14 | A160403579 | 0.500 ppm |
| 2016-10-12 | A160343046 | 0.700 ppm |
| 2016-11-09 | A160448345 | 0.960 ppm |
| 2016-12-14 | A160345046 | 0.780 ppm |
| 2017-01-11 | A170444670 | 1.14 ppm |
| 2017-02-08 | A170460641 | 1.04 ppm |
| 2017-03-08 | A170469764 | 0.710 ppm |
| 2017-04-12 | A170480366 | 0.700 ppm |
| 2017-05-10 | A170487101 | 0.600 ppm |
| 2017-06-14 | A170497401 | 0.560 ppm |
| 2017-07-12 | A170493058 | 0.750 ppm |
| 2017-08-09 | A170460640 | 0.760 ppm |
| 2017-09-13 | A170533503 | 0.730 ppm |
| 2017-10-11 | A170515572 | 0.750 ppm |
| 2017-11-08 | A170545055 | 1.07 ppm |
| 2017-12-13 | A170534494 | 1.000 ppm |
| 2018-01-10 | A180547546 | 0.960 ppm |
| 2018-02-07 | A180547548 | 0.980 ppm |
| 2018-03-14 | A180533690 | 0.940 ppm |
| 2018-04-11 | A180533697 | 0.850 ppm |
| 2018-05-16 | A180533502 | 0.600 ppm |
| 2018-06-06 | A180547924 | 0.750 ppm |
| 2018-07-11 | A180619918 | 0.920 ppm |
| 2018-08-08 | A180533559 | 0.600 ppm |
| 2018-09-05 | A180584974 | 0.650 ppm |
| 2018-10-03 | A180642831 | 0.800 ppm |
| 2018-11-14 | 8K01692-01 | 0.774 ppm |
| 2018-12-05 | 8L00461-01 | 0.832 ppm |
| 2019-01-09 | 9A01228-01 | 0.817 ppm |
| 2019-02-06 | 9B00483-01 | 0.917 ppm |
| 2019-03-13 | 9C01600-02 | 0.951 ppm |
| 2019-04-03 | 9D00402-01 | 0.831 ppm |
| 2019-05-01 | 9E00073-01 | 0.672 ppm |
| 2019-06-05 | 9F00423-01 | 0.856 ppm |
| 2019-07-03 | 9G00416-02 | 1.01 ppm |
| 2019-08-07 | 9H00871-01 | 0.928 ppm |
| 2019-09-11 | 9I01554-02 | 1.14 ppm |
| 2019-10-02 | 9J00249-02 | 0.957 ppm |