Nitrate and nitrite

Bucyrus City

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.226 ppm	12	9	ND - 0.590 ppm
2015	0.404 ppm	12	11	ND - 0.940 ppm
2016	0.248 ppm	12	10	ND - 0.700 ppm
2017	0.647 ppm	12	12	0.140 ppm - 1.15 ppm
2018	0.453 ppm	12	12	0.150 ppm - 0.860 ppm
2019	0.434 ppm	10	10	0.140 ppm - 0.780 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	14-10268-03	0.230 ppm
2014-02-04	14-11286-03	0.140 ppm
2014-03-11	14-12822-01A	0.150 ppm
2014-04-08	14-14123-03A	0.590 ppm
2014-05-07	14-15412-03	0.510 ppm
2014-06-18	14-17839-03	0.390 ppm
2014-07-08	14-18780-03	0.370 ppm
2014-08-06	14-20190-03	0.220 ppm
2014-09-10	14-22342-03	ND
2014-10-08	14-23867-03	ND
2014-11-04	14-25013-03	ND
2014-12-09	14-26721-03	0.110 ppm
2015-01-14	15-10526-03	ND
2015-02-05	15-11390-03	0.140 ppm
2015-03-11	15-12875-03A	0.150 ppm
2015-04-14	15-14553-03A	0.940 ppm
2015-05-06	15-15641-03	0.840 ppm
2015-06-11	15-17845-03	0.830 ppm
2015-07-14	15-19820-03	0.700 ppm
2015-08-04	15-20744-03	0.480 ppm
2015-09-09	15-23063-03	0.240 ppm
2015-10-15	15-25165-03	0.200 ppm
2015-11-03	15-26219-03	0.180 ppm
2015-12-10	15-28092-03	0.150 ppm
2016-01-07	16-10279-03A	0.220 ppm
2016-02-03	16-11560-03	0.240 ppm
2016-03-02	16-12915-03	0.180 ppm
2016-04-06	16-14742-03A	0.450 ppm
2016-05-03	16-16194-03	ND
2016-06-07	16-18254-03	0.700 ppm
2016-07-12	16-20548-03	0.680 ppm
2016-08-04	16-22257-03	ND
2016-09-07	16-24664-03	0.120 ppm
2016-10-05	16-26819-03	0.130 ppm
2016-11-03	16-28594-03	0.140 ppm
2016-12-06	16-30258-03	0.120 ppm
2017-01-05	17-10252-03A	0.140 ppm
2017-02-09	17-12323-03	1.000 ppm
2017-03-09	17-14175-03	0.880 ppm
2017-04-05	17-15699-03A	1.15 ppm
2017-05-11	17-18161-01	1.15 ppm
2017-06-06	17-19692-03	0.990 ppm
2017-07-05	17-21873-01	0.860 ppm
2017-08-08	17-24706-03	0.530 ppm
2017-09-05	17-26780-01	0.270 ppm
2017-10-04	17-29058-03	0.210 ppm
2017-11-07	17-31452-03	0.290 ppm
2017-12-05	17-33003-03	0.290 ppm
2018-01-03	18-10070-03A	0.280 ppm
2018-02-06	18-12028-03	0.160 ppm
2018-03-06	18-13960-01	0.150 ppm
2018-04-03	18-15822-01	0.860 ppm
2018-05-09	18-18637-03	0.850 ppm
2018-06-05	18-20536-03	0.860 ppm
2018-07-11	M18-23990-03	0.660 ppm
2018-08-01	18-25886-01	0.550 ppm
2018-09-05	18-28923-03	0.340 ppm
2018-10-03	18-31514-03	0.260 ppm
2018-11-06	18-34104-03	0.230 ppm
2018-12-04	18-35997-03	0.240 ppm
2019-01-03	19-10140-03	0.220 ppm
2019-02-05	19-12229-03	0.140 ppm
2019-03-05	19-14172-03	0.780 ppm
2019-04-03	19-16468-03A	0.730 ppm
2019-05-02	M19-18637-03	0.650 ppm
2019-06-04	19-21019-03	0.590 ppm
2019-07-02	19-23887-03	0.510 ppm
2019-08-06	19-26669-03	0.320 ppm
2019-09-04	19-29481-03	0.220 ppm
2019-10-02	19-32005-04	0.180 ppm