Nitrate
Warren 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.0808 ppm | 12 | 7 | ND - 0.200 ppm |
2015 | 0.108 ppm | 13 | 7 | ND - 0.280 ppm |
2016 | 0.0917 ppm | 12 | 6 | ND - 0.230 ppm |
2017 | 0.138 ppm | 12 | 7 | ND - 0.470 ppm |
2018 | 0.108 ppm | 12 | 5 | ND - 0.400 ppm |
2019 | 0.0430 ppm | 10 | 3 | ND - 0.220 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 |
---|---|---|
2014-01-02 | 14-10098-01 | 0.120 ppm |
2014-02-06 | 14-11490-01 | 0.130 ppm |
2014-03-06 | 14-12647-01 | 0.140 ppm |
2014-04-03 | 14-13990-01A | 0.200 ppm |
2014-05-01 | 14-15199-01 | 0.140 ppm |
2014-06-05 | 14-17029-01 | 0.120 ppm |
2014-07-03 | 14-18684-01 | 0.120 ppm |
2014-08-07 | 14-20398-01 | ND |
2014-09-04 | 14-22036-01 | ND |
2014-10-02 | 14-23561-01 | ND |
2014-11-13 | 14-25606-01 | ND |
2014-12-03 | 14-26494-01 | ND |
2015-01-07 | 15-10259-01 | ND |
2015-01-07 | 15-10270-02 | 0.260 ppm |
2015-02-05 | 15-11414-01 | ND |
2015-03-05 | 15-12660-01 | 0.190 ppm |
2015-04-02 | 15-14026-04 | 0.250 ppm |
2015-05-07 | 15-15854-04A | 0.160 ppm |
2015-06-04 | 15-17425-01 | 0.160 ppm |
2015-07-02 | 15-19053-01 | 0.280 ppm |
2015-08-06 | 15-21096-03 | ND |
2015-09-03 | 15-22815-03 | ND |
2015-10-01 | 15-24306-03 | 0.1000 ppm |
2015-11-05 | 15-26319-03 | ND |
2015-12-03 | 15-27649-03 | ND |
2016-01-07 | 16-10332-03 | 0.170 ppm |
2016-02-04 | 16-11669-03 | 0.190 ppm |
2016-03-03 | 16-13065-03 | 0.210 ppm |
2016-04-07 | 16-14897-01A | 0.230 ppm |
2016-05-05 | 16-16474-03 | 0.180 ppm |
2016-06-02 | 16-17904-01 | ND |
2016-07-07 | 16-20295-03A | ND |
2016-08-04 | 16-22270-03 | ND |
2016-09-08 | 16-24839-03 | ND |
2016-10-06 | 16-26854-03 | ND |
2016-11-03 | 16-28619-03 | 0.120 ppm |
2016-12-08 | 16-30602-03 | ND |
2017-01-05 | 17-10315-03 | ND |
2017-02-02 | 17-11834-03 | 0.240 ppm |
2017-03-02 | 17-13649-03 | 0.470 ppm |
2017-04-06 | 17-15889-03A | 0.340 ppm |
2017-05-04 | 17-17757-03 | 0.200 ppm |
2017-06-01 | 17-19482-03 | 0.120 ppm |
2017-07-06 | 17-22112-03A | 0.170 ppm |
2017-08-03 | 17-24453-03 | ND |
2017-09-07 | 17-27114-03 | ND |
2017-10-05 | 17-29290-04 | ND |
2017-11-02 | 17-31227-04 | ND |
2017-12-07 | 17-33454-04 | 0.110 ppm |
2018-01-04 | 18-10311-04 | ND |
2018-02-08 | 18-12342-04 | ND |
2018-03-08 | 18-14216-04 | 0.380 ppm |
2018-04-05 | 18-16210-04 | 0.400 ppm |
2018-05-03 | 18-18222-04 | 0.210 ppm |
2018-06-07 | 18-21106-03 | 0.160 ppm |
2018-07-05 | 18-23535-03 | ND |
2018-08-02 | 18-26064-03 | ND |
2018-09-06 | 18-29149-04 | ND |
2018-10-04 | 18-31773-04 | 0.150 ppm |
2018-11-08 | 18-34508-04 | ND |
2018-12-06 | 18-36444-04 | ND |
2019-01-03 | 19-10191-04 | ND |
2019-02-07 | 19-12573-04 | ND |
2019-03-07 | 19-14571-04 | ND |
2019-04-04 | 19-16694-04 | 0.220 ppm |
2019-05-02 | 19-18697-04 | ND |
2019-06-06 | 19-21583-04 | 0.110 ppm |
2019-07-11 | 19-24805-03 | 0.1000 ppm |
2019-08-01 | M19-26441-02 | ND |
2019-09-05 | 19-29729-03 | ND |
2019-10-03 | 19-32258-02 | ND |