Nitrate
Van Wert City
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 | 1.43 ppm | 12 | 12 | 0.250 ppm - 4.00 ppm |
| 2015 | 0.396 ppm | 12 | 9 | ND - 0.840 ppm |
| 2016 | 1.56 ppm | 12 | 12 | 0.120 ppm - 6.00 ppm |
| 2017 | 1.48 ppm | 12 | 12 | 0.1000 ppm - 3.04 ppm |
| 2018 | 0.947 ppm | 12 | 9 | ND - 2.15 ppm |
| 2019 | 0.652 ppm | 10 | 9 | ND - 1.06 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 |
|---|---|---|
| 2014-01-09 | A140088883 | 1.35 ppm |
| 2014-02-06 | A140116190 | 4.00 ppm |
| 2014-03-06 | A140172955 | 2.30 ppm |
| 2014-04-03 | A140120136 | 1.90 ppm |
| 2014-05-08 | A140116192 | 1.80 ppm |
| 2014-06-05 | A140172953 | 1.75 ppm |
| 2014-07-03 | A140212729 | 1.60 ppm |
| 2014-08-07 | A140159994 | 1.12 ppm |
| 2014-09-04 | A140230728 | 0.480 ppm |
| 2014-10-02 | A140081883 | 0.250 ppm |
| 2014-11-06 | A140230761 | 0.260 ppm |
| 2014-12-04 | A140214320 | 0.370 ppm |
| 2015-01-08 | A150194699 | 0.760 ppm |
| 2015-02-05 | A150265621 | 0.840 ppm |
| 2015-03-05 | A150259265 | 0.580 ppm |
| 2015-04-02 | A150081885 | 0.790 ppm |
| 2015-05-07 | A150282487 | 0.720 ppm |
| 2015-06-04 | A150159995 | 0.530 ppm |
| 2015-07-02 | A150288104 | 0.260 ppm |
| 2015-08-06 | A150318684 | 0.140 ppm |
| 2015-09-03 | A150328067 | 0.130 ppm |
| 2015-10-08 | A150331108 | ND |
| 2015-11-05 | A150328068 | ND |
| 2015-12-03 | A150159997 | ND |
| 2016-01-07 | A160322658 | 6.00 ppm |
| 2016-02-04 | A160308971 | 2.40 ppm |
| 2016-03-03 | A160288106 | 1.65 ppm |
| 2016-04-07 | A160322660 | 1.95 ppm |
| 2016-05-05 | A160322663 | 1.80 ppm |
| 2016-06-02 | A160377930 | 1.55 ppm |
| 2016-07-07 | A160396836 | 0.940 ppm |
| 2016-08-04 | A160396841 | 0.360 ppm |
| 2016-09-08 | A160396830 | 0.120 ppm |
| 2016-10-06 | A160443887 | 0.740 ppm |
| 2016-11-03 | A160444781 | 0.600 ppm |
| 2016-12-08 | A160445074 | 0.630 ppm |
| 2017-01-05 | A170460871 | 3.04 ppm |
| 2017-02-02 | A170357551 | 2.80 ppm |
| 2017-03-02 | A170396822 | 2.42 ppm |
| 2017-04-06 | A170480488 | 2.70 ppm |
| 2017-05-04 | A170480489 | 2.55 ppm |
| 2017-06-08 | A170448858 | 1.54 ppm |
| 2017-07-06 | A170508894 | 1.52 ppm |
| 2017-08-03 | A170508895 | 0.390 ppm |
| 2017-09-07 | A170527993 | 0.1000 ppm |
| 2017-10-05 | A170508897 | 0.150 ppm |
| 2017-11-02 | A170508898 | 0.130 ppm |
| 2017-12-07 | A170554714 | 0.380 ppm |
| 2018-01-04 | A180539210 | 0.260 ppm |
| 2018-02-08 | A180557709 | 1.68 ppm |
| 2018-03-08 | A180539213 | 1.92 ppm |
| 2018-04-05 | A180534079 | 2.15 ppm |
| 2018-05-03 | A180560401 | 1.75 ppm |
| 2018-06-07 | A180593066 | 1.10 ppm |
| 2018-07-05 | A180593067 | 1.15 ppm |
| 2018-08-02 | A180619909 | 0.640 ppm |
| 2018-09-06 | A180608839 | ND |
| 2018-10-04 | A180640461 | ND |
| 2018-11-01 | 8K00120-01 | ND |
| 2018-12-05 | 8L00670-01 | 0.719 ppm |
| 2019-01-03 | 9A00332-01 | 0.562 ppm |
| 2019-02-07 | 9B00721-01 | 1.06 ppm |
| 2019-03-07 | 9C00816-03 | 0.780 ppm |
| 2019-04-04 | 9D00591-01 | 0.897 ppm |
| 2019-05-02 | 9E00317-01 | 0.876 ppm |
| 2019-06-06 | 9F00735-01 | 0.622 ppm |
| 2019-07-03 | 9G00423-08 | 0.632 ppm |
| 2019-08-01 | 9H00170-01 | 0.501 ppm |
| 2019-09-04 | 9I00605-04 | 0.590 ppm |
| 2019-10-03 | 9J00637-04 | ND |