Nitrate and nitrite
Boone County Cons. PWSD1
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 | 0.00215 ppm | 13 | 2 | ND - 0.0150 ppm |
2015 | ND | 13 | 0 | ND |
2016 | 0.00346 ppm | 13 | 3 | ND - 0.0180 ppm |
2017 | 0.00508 ppm | 13 | 5 | ND - 0.0170 ppm |
2018 | 0.00408 ppm | 13 | 4 | ND - 0.0160 ppm |
2019 | 0.00308 ppm | 13 | 2 | ND - 0.0210 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 |
---|---|---|
2014-02-26 | AC18621 | ND |
2014-02-26 | AC18620 | ND |
2014-02-26 | AC18633 | ND |
2014-02-26 | AC18632 | ND |
2014-02-26 | AC18631 | ND |
2014-02-26 | AC18630 | 0.0130 ppm |
2014-02-26 | AC18628 | ND |
2014-02-26 | AC18627 | ND |
2014-02-26 | AC18626 | ND |
2014-02-26 | AC18625 | ND |
2014-02-26 | AC18624 | ND |
2014-02-26 | AC18623 | 0.0150 ppm |
2014-02-26 | AC18622 | ND |
2015-02-19 | AC42200 | ND |
2015-02-19 | AC42195 | ND |
2015-02-19 | AC42203 | ND |
2015-02-19 | AC42193 | ND |
2015-02-19 | AC42202 | ND |
2015-02-19 | AC42196 | ND |
2015-02-19 | AC42198 | ND |
2015-02-19 | AC42199 | ND |
2015-02-19 | AC42194 | ND |
2015-02-19 | AC42201 | ND |
2015-02-19 | AC42204 | ND |
2015-02-19 | AC42192 | ND |
2015-02-19 | AC42197 | ND |
2016-02-08 | AC66634 | 0.0120 ppm |
2016-02-08 | AC66641 | ND |
2016-02-08 | AC66642 | ND |
2016-02-08 | AC66643 | ND |
2016-02-08 | AC66631 | 0.0180 ppm |
2016-02-08 | AC66632 | ND |
2016-02-08 | AC66633 | ND |
2016-02-08 | AC66636 | ND |
2016-02-08 | AC66637 | ND |
2016-02-08 | AC66640 | ND |
2016-02-08 | AC66638 | ND |
2016-02-08 | AC66635 | ND |
2016-02-08 | AC66639 | 0.0150 ppm |
2017-02-17 | AC91075 | ND |
2017-02-17 | AC91083 | ND |
2017-02-17 | AC91087 | ND |
2017-02-17 | AC91086 | ND |
2017-02-17 | AC91082 | ND |
2017-02-17 | AC91081 | ND |
2017-02-17 | AC91079 | ND |
2017-02-17 | AC91084 | 0.0170 ppm |
2017-02-17 | AC91080 | ND |
2017-02-17 | AC91078 | 0.0130 ppm |
2017-02-17 | AC91085 | 0.0130 ppm |
2017-02-17 | AC91076 | 0.0110 ppm |
2017-02-17 | AC91077 | 0.0120 ppm |
2018-03-07 | AD14476 | ND |
2018-03-07 | AD14477 | 0.0110 ppm |
2018-03-07 | AD14474 | 0.0160 ppm |
2018-03-07 | AD14473 | ND |
2018-03-07 | AD14472 | ND |
2018-03-07 | AD14471 | 0.0110 ppm |
2018-03-07 | AD14468 | ND |
2018-03-07 | AD14475 | ND |
2018-03-07 | AD14467 | ND |
2018-03-07 | AD14469 | ND |
2018-03-07 | AD14465 | ND |
2018-03-07 | AD14470 | 0.0150 ppm |
2018-05-24 | AD26903 | ND |
2019-02-08 | AD39652 | ND |
2019-02-08 | AD39651 | ND |
2019-02-08 | AD39650 | ND |
2019-02-08 | AD39649 | 0.0190 ppm |
2019-02-08 | AD39648 | ND |
2019-02-08 | AD39647 | ND |
2019-02-08 | AD39646 | ND |
2019-02-08 | AD39645 | ND |
2019-02-08 | AD39644 | ND |
2019-02-08 | AD39643 | ND |
2019-02-08 | AD39642 | ND |
2019-02-08 | AD39641 | 0.0210 ppm |
2019-02-08 | AD39640 | ND |