Nitrate and nitrite
Lyndhurst Water Department
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 0.310 ppm | 3 | 3 | 0.250 ppm - 0.350 ppm |
2015 | 0.292 ppm | 4 | 4 | 0.160 ppm - 0.440 ppm |
2016 | 0.253 ppm | 3 | 3 | 0.200 ppm - 0.340 ppm |
2017 | 0.245 ppm | 4 | 4 | 0.0600 ppm - 0.350 ppm |
2018 | 0.288 ppm | 4 | 4 | 0.190 ppm - 0.410 ppm |
2019 | 0.368 ppm | 4 | 4 | 0.140 ppm - 0.480 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 |
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