Nitrate

Painesville City PWS

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

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 EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

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