Nitrate and nitrite
NJ American Water - Short Hills
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.
84
Samples
0
Samples exceeding legal limit (MCL)
82
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 1.60 ppm | 13 | 13 | 0.01000 ppm - 3.46 ppm |
2015 | 1.55 ppm | 13 | 13 | 0.260 ppm - 3.14 ppm |
2016 | 2.22 ppm | 15 | 15 | 0.240 ppm - 5.81 ppm |
2017 | 2.67 ppm | 16 | 16 | 0.310 ppm - 6.23 ppm |
2018 | 2.70 ppm | 17 | 17 | 0.300 ppm - 7.22 ppm |
2019 | 1.69 ppm | 10 | 10 | 0.0500 ppm - 5.74 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 |
---|---|---|
2014-01-28 | 24703501 | 3.09 ppm |
2014-01-29 | 24533401 | 0.450 ppm |
2014-01-29 | 24530701 | 2.19 ppm |
2014-02-27 | 24703301 | 1.25 ppm |
2014-04-29 | 25368001 | 2.05 ppm |
2014-06-09 | 25750101 | 3.46 ppm |
2014-07-01 | 26164701 | 1.21 ppm |
2014-07-01 | 26164601 | 0.850 ppm |
2014-07-01 | 26164501 | 2.10 ppm |
2014-07-16 | 26162801 | 0.450 ppm |
2014-08-13 | 26570601 | 2.57 ppm |
2014-08-20 | 26570801 | 1.11 ppm |
2014-08-20 | 26569401 | 0.01000 ppm |
2015-01-06 | 27835601 | 0.700 ppm |
2015-01-22 | 28271901 | 2.12 ppm |
2015-02-24 | 28074701 | 1.28 ppm |
2015-02-26 | 28074901 | 2.95 ppm |
2015-04-28 | 28516301 | 1.75 ppm |
2015-06-23 | 29401001 | 3.14 ppm |
2015-07-09 | 29695601 | 2.08 ppm |
2015-07-09 | 29695801 | 1.35 ppm |
2015-07-09 | 29695701 | 0.580 ppm |
2015-07-14 | 29693901 | 0.290 ppm |
2015-08-25 | 29941301 | 1.03 ppm |
2015-08-25 | 29939701 | 0.260 ppm |
2015-08-25 | 29941101 | 2.59 ppm |
2016-01-04 | 31121101 | 2.52 ppm |
2016-01-04 | 31123801 | 0.580 ppm |
2016-02-03 | 31342101 | 1.29 ppm |
2016-03-15 | 31342301 | 4.00 ppm |
2016-04-19 | 31791601 | 2.07 ppm |
2016-06-02 | 32499701 | 5.81 ppm |
2016-07-12 | 32824901 | 0.730 ppm |
2016-07-12 | 32825001 | 1.40 ppm |
2016-07-12 | 32824801 | 2.42 ppm |
2016-07-19 | 32823101 | 0.240 ppm |
2016-08-03 | 33067001 | 0.280 ppm |
2016-08-23 | 33069001 | 4.11 ppm |
2016-08-23 | 33068501 | 2.34 ppm |
2016-08-23 | 33068701 | 1.000 ppm |
2016-11-16 | 33911501 | 4.46 ppm |
2017-01-24 | 34410701 | 2.25 ppm |
2017-01-31 | 34414201 | 1.000 ppm |
2017-02-14 | 34747101 | 4.14 ppm |
2017-02-14 | 34748701 | 4.14 ppm |
2017-03-28 | 34748501 | 1.54 ppm |
2017-05-15 | 35616901 | 6.23 ppm |
2017-05-22 | 35301001 | 1.99 ppm |
2017-07-05 | 36444601 | 0.310 ppm |
2017-07-19 | 36446501 | 2.30 ppm |
2017-07-19 | 36446601 | 0.870 ppm |
2017-07-25 | 36446701 | 1.45 ppm |
2017-08-08 | 36843501 | 0.310 ppm |
2017-08-14 | 36845301 | 2.64 ppm |
2017-08-14 | 36845701 | 6.19 ppm |
2017-08-14 | 36845501 | 1.12 ppm |
2017-11-27 | 37760301 | 6.18 ppm |
2018-01-18 | 38399801 | 2.29 ppm |
2018-01-24 | 38403401 | 0.690 ppm |
2018-02-06 | 38703201 | 5.86 ppm |
2018-02-06 | 38699601 | 5.86 ppm |
2018-02-08 | 38702701 | 1.40 ppm |
2018-02-22 | 38696501 | 2.29 ppm |
2018-04-18 | 39251601 | 2.17 ppm |
2018-05-21 | 40105301 | 6.62 ppm |
2018-07-02 | 40414701 | 0.300 ppm |
2018-07-10 | 40416901 | 1.37 ppm |
2018-07-12 | 40416601 | 2.41 ppm |
2018-07-12 | 40416801 | 0.860 ppm |
2018-08-07 | 40724701 | 1.22 ppm |
2018-08-07 | 40723201 | 0.350 ppm |
2018-08-15 | 40724501 | 2.62 ppm |
2018-09-24 | 40724901 | 7.22 ppm |
2018-11-08 | 42049501 | 2.39 ppm |
2019-01-30 | 42613201 | 0.840 ppm |
2019-02-19 | 43027901 | 1.29 ppm |
2019-04-02 | 43674701 | 2.05 ppm |
2019-07-01 | 45169301 | 0.280 ppm |
2019-07-23 | 45170401 | 1.28 ppm |
2019-07-29 | 45170501 | 1.36 ppm |
2019-08-12 | 45887601 | 2.69 ppm |
2019-08-12 | 45886501 | 1.32 ppm |
2019-08-14 | 45887701 | 0.0500 ppm |
2019-12-16 | 48097201 | 5.74 ppm |