Nitrate
Ravenna 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.
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 | 0.301 ppm | 12 | 10 | ND - 0.560 ppm |
| 2015 | 0.137 ppm | 12 | 7 | ND - 0.380 ppm |
| 2016 | 0.0658 ppm | 12 | 5 | ND - 0.219 ppm |
| 2017 | 0.0794 ppm | 12 | 5 | ND - 0.277 ppm |
| 2018 | 0.107 ppm | 12 | 5 | ND - 0.474 ppm |
| 2019 | 0.180 ppm | 10 | 7 | ND - 0.462 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 |
|---|---|---|
| 2014-01-15 | 14-10677-06 | 0.140 ppm |
| 2014-02-12 | 14-11807-06 | 0.330 ppm |
| 2014-03-12 | 14-13064-04 | 0.560 ppm |
| 2014-04-09 | 14-14378-06 | 0.360 ppm |
| 2014-05-07 | 14-15557-06 | 0.370 ppm |
| 2014-06-11 | 14-17539-06 | 0.320 ppm |
| 2014-07-09 | 14-19031-06 | 0.530 ppm |
| 2014-08-14 | 14-20988-04A | 0.520 ppm |
| 2014-09-11 | 14-22468-06 | 0.370 ppm |
| 2014-10-09 | 14-23958-06 | ND |
| 2014-11-12 | 14-25609-06 | 0.110 ppm |
| 2014-12-10 | 14-26918-06 | ND |
| 2015-01-14 | 15-10590-06 | ND |
| 2015-02-11 | 15-11778-06 | 0.140 ppm |
| 2015-03-19 | 15-13426-06 | 0.210 ppm |
| 2015-04-15 | 15-14829-06 | 0.150 ppm |
| 2015-05-14 | 15-16231-06 | 0.130 ppm |
| 2015-06-10 | 15-17936-06 | 0.300 ppm |
| 2015-07-15 | 15-19910-06 | 0.380 ppm |
| 2015-08-13 | 15-21597-06 | 0.330 ppm |
| 2015-09-17 | 15-23656-06 | ND |
| 2015-10-14 | 15-25222-06 | ND |
| 2015-11-10 | 15-26700-06 | ND |
| 2015-12-10 | 15-28097-06 | ND |
| 2016-01-13 | 16-10686-06 | ND |
| 2016-02-03 | 16020387 | ND |
| 2016-03-02 | 16030313 | ND |
| 2016-04-06 | 16040631 | ND |
| 2016-05-04 | 16050533 | ND |
| 2016-06-08 | 16061213 | 0.138 ppm |
| 2016-07-06 | 16070301 | 0.219 ppm |
| 2016-08-03 | 16080617 | 0.137 ppm |
| 2016-09-06 | 16090867 | 0.164 ppm |
| 2016-10-04 | 16100648 | ND |
| 2016-11-02 | 16110279 | 0.132 ppm |
| 2016-12-07 | 16120768 | ND |
| 2017-01-04 | 17010299 | ND |
| 2017-02-01 | 17020116 | ND |
| 2017-03-01 | 17030097 | ND |
| 2017-04-05 | 17040360 | ND |
| 2017-05-03 | 17050372 | ND |
| 2017-06-07 | 17060786 | ND |
| 2017-07-05 | 17070387 | 0.182 ppm |
| 2017-08-02 | 17080348 | 0.189 ppm |
| 2017-09-06 | 17090483 | 0.186 ppm |
| 2017-10-04 | 17100520 | 0.119 ppm |
| 2017-11-01 | 17110176 | ND |
| 2017-12-06 | 17120555 | 0.277 ppm |
| 2018-01-03 | 18010196 | ND |
| 2018-02-07 | 18020502 | ND |
| 2018-03-07 | 18030804 | 0.106 ppm |
| 2018-04-04 | 18040332 | ND |
| 2018-05-02 | 18050324 | ND |
| 2018-06-06 | 18060573 | ND |
| 2018-07-03 | 18070166 | 0.149 ppm |
| 2018-08-01 | 18080166 | 0.474 ppm |
| 2018-09-05 | 18090321 | 0.400 ppm |
| 2018-10-03 | 18100548 | 0.153 ppm |
| 2018-11-07 | 18110714 | ND |
| 2018-12-05 | 18120542 | ND |
| 2019-01-10 | 19011326 | ND |
| 2019-02-06 | 19021019 | 0.123 ppm |
| 2019-03-06 | 19031008 | ND |
| 2019-04-03 | 19040693 | 0.462 ppm |
| 2019-05-01 | 19050157 | ND |
| 2019-06-05 | 19060414 | 0.150 ppm |
| 2019-07-02 | 19070856 | 0.358 ppm |
| 2019-08-07 | 19080776 | 0.280 ppm |
| 2019-09-04 | 19090649 | 0.260 ppm |
| 2019-10-02 | 19100496 | 0.170 ppm |