Nitrate and nitrite
Van Wert 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.
70
Samples
0
Samples exceeding legal limit (MCL)
58
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 | 0.948 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 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 |
|---|---|---|
| 2014-01-09 | 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 | 0.720 ppm |
| 2019-01-03 | 9A00332-01 | 0.560 ppm |
| 2019-02-07 | 9B00721-01 | 1.06 ppm |
| 2019-03-07 | 9C00816-03 | 0.780 ppm |
| 2019-04-04 | 9D00591-01 | 0.900 ppm |
| 2019-05-02 | 9E00317-01 | 0.880 ppm |
| 2019-06-06 | 9F00735-01 | 0.620 ppm |
| 2019-07-03 | 9G00423-08 | 0.630 ppm |
| 2019-08-01 | 9H00170-01 | 0.500 ppm |
| 2019-09-04 | 9I00605-04 | 0.590 ppm |
| 2019-10-03 | 9J00637-04 | ND |