Nitrate and nitrite
Painesville City PWS
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 | 0.279 ppm | 12 | 12 | 0.130 ppm - 0.820 ppm |
2015 | 0.307 ppm | 12 | 11 | ND - 0.620 ppm |
2016 | 0.392 ppm | 12 | 12 | 0.120 ppm - 0.820 ppm |
2017 | 0.390 ppm | 12 | 10 | ND - 1.17 ppm |
2018 | 0.354 ppm | 12 | 12 | 0.140 ppm - 0.760 ppm |
2019 | 0.441 ppm | 10 | 9 | ND - 0.820 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 |
---|---|---|
2014-01-07 | 14-10166-03 | 0.250 ppm |
2014-02-04 | 14-11318-02 | 0.280 ppm |
2014-03-04 | 14-12489-02 | 0.290 ppm |
2014-04-01 | 14-13792-02 | 0.220 ppm |
2014-05-06 | 14-15360-03 | 0.820 ppm |
2014-06-03 | 14-16795-03 | 0.270 ppm |
2014-07-01 | 14-18498-02 | 0.360 ppm |
2014-08-05 | 14-20173-03 | 0.170 ppm |
2014-09-02 | 14-21850-02 | 0.130 ppm |
2014-10-07 | 14-23808-06 | 0.140 ppm |
2014-11-04 | 14-25059-02 | 0.240 ppm |
2014-12-02 | 14-26291-02 | 0.180 ppm |
2015-01-06 | 15-10103-02 | 0.260 ppm |
2015-02-03 | 15-11267-02 | 0.230 ppm |
2015-03-03 | 15-12420-02 | 0.220 ppm |
2015-04-07 | 15-14227-03A | 0.440 ppm |
2015-05-05 | 15-15601-02 | 0.620 ppm |
2015-06-02 | 15-17158-03 | 0.620 ppm |
2015-07-07 | 15-19207-02 | 0.380 ppm |
2015-08-04 | 15-20778-02 | 0.250 ppm |
2015-09-01 | 15-22608-02 | 0.150 ppm |
2015-10-06 | 15-24499-02 | ND |
2015-11-03 | 15-26141-02 | 0.320 ppm |
2015-12-01 | 15-27421-02 | 0.190 ppm |
2016-01-05 | 16-10157-03A | 0.480 ppm |
2016-02-02 | 16-11438-02 | 0.320 ppm |
2016-03-01 | 16-12858-02 | 0.470 ppm |
2016-04-05 | 16-14715-02 | 0.820 ppm |
2016-05-03 | 16-16258-02 | 0.500 ppm |
2016-06-07 | 16-18169-02 | 0.720 ppm |
2016-07-05 | 16-20073-03 | 0.500 ppm |
2016-08-02 | 16-21998-02 | 0.250 ppm |
2016-09-06 | 16-24490-02 | 0.120 ppm |
2016-10-04 | 16-26611-03 | 0.140 ppm |
2016-11-01 | 16-28410-02 | 0.170 ppm |
2016-12-06 | 16-30337-02 | 0.210 ppm |
2017-01-05 | 17-10314-07A | 0.370 ppm |
2017-02-07 | 17-12080-02 | 0.430 ppm |
2017-03-07 | 17-13935-02 | 1.17 ppm |
2017-04-04 | 17-15574-02A | 0.770 ppm |
2017-05-02 | 17-17477-02 | 0.550 ppm |
2017-06-06 | 17-19774-02 | 0.560 ppm |
2017-07-06 | 17-22128-03 | 0.260 ppm |
2017-08-01 | 17-24158-03 | 0.150 ppm |
2017-09-05 | 17-26830-02 | 0.110 ppm |
2017-10-03 | 17-29013-02 | ND |
2017-11-07 | 17-31507-02 | ND |
2017-12-05 | 17-33093-03 | 0.310 ppm |
2018-01-04 | 18-10327-03 | 0.310 ppm |
2018-02-06 | 18-12111-03 | 0.280 ppm |
2018-03-06 | 18-13898-03 | 0.330 ppm |
2018-04-03 | 18-15886-03 | 0.330 ppm |
2018-05-01 | 18-17881-05 | 0.550 ppm |
2018-06-05 | 18-20633-03 | 0.760 ppm |
2018-07-10 | 18-23925-08 | 0.510 ppm |
2018-08-07 | 18-26408-03 | 0.310 ppm |
2018-09-04 | 18-28802-04 | 0.140 ppm |
2018-10-02 | 18-31415-09 | 0.180 ppm |
2018-11-05 | 18-34154-03 | 0.210 ppm |
2018-12-04 | 18-36142-03 | 0.340 ppm |
2019-01-08 | 19-10520-08A | 0.240 ppm |
2019-02-05 | 19-12290-03 | 0.730 ppm |
2019-03-05 | 19-14261-03 | 0.420 ppm |
2019-04-02 | 19-16410-03A | 0.610 ppm |
2019-05-14 | 19-19699-01 | 0.760 ppm |
2019-06-03 | 19-21071-03 | 0.820 ppm |
2019-07-01 | 19-23833-03 | 0.500 ppm |
2019-08-06 | 19-26761-03 | 0.200 ppm |
2019-09-03 | 19-29318-03 | 0.130 ppm |
2019-10-01 | 19-31901-03 | ND |