Nitrate
Manville WSC
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 0.579 ppm | 9 | 8 | ND - 3.13 ppm |
2015 | 0.384 ppm | 9 | 8 | ND - 2.04 ppm |
2016 | 0.491 ppm | 9 | 9 | 0.01000 ppm - 3.04 ppm |
2017 | 1.06 ppm | 9 | 9 | 0.0200 ppm - 4.44 ppm |
2018 | 0.846 ppm | 9 | 9 | 0.0200 ppm - 2.05 ppm |
2019 | 0.316 ppm | 9 | 4 | ND - 2.41 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 |
---|---|---|
2014-03-11 | AC46342 | 0.580 ppm |
2014-03-11 | AC46347 | 0.150 ppm |
2014-03-11 | AC46348 | 0.0200 ppm |
2014-03-11 | AC46328 | 0.280 ppm |
2014-03-11 | AC46324 | ND |
2014-03-11 | AC46325 | 3.13 ppm |
2014-06-18 | AC57234 | 0.0600 ppm |
2014-06-18 | AC57230 | 0.180 ppm |
2014-06-18 | AC57220 | 0.810 ppm |
2015-03-19 | AC85184 | 0.120 ppm |
2015-03-19 | AC85179 | 2.04 ppm |
2015-03-19 | AC85183 | 0.590 ppm |
2015-03-19 | AC85180 | ND |
2015-03-19 | AC85181 | 0.210 ppm |
2015-03-19 | AC85182 | 0.220 ppm |
2015-03-19 | AC85185 | 0.180 ppm |
2015-05-26 | AC93211 | 0.0200 ppm |
2015-05-26 | AC93212 | 0.0800 ppm |
2016-04-25 | AD33866 | 0.0400 ppm |
2016-04-25 | AD33863 | 0.290 ppm |
2016-04-25 | AD33868 | 0.290 ppm |
2016-04-25 | AD33865 | 0.310 ppm |
2016-04-25 | AD33867 | 0.270 ppm |
2016-04-25 | AD33864 | 0.140 ppm |
2016-04-25 | AD33879 | 0.01000 ppm |
2016-04-25 | AD33880 | 3.04 ppm |
2016-11-09 | AD57281 | 0.0300 ppm |
2017-01-23 | AD65939 | 0.0500 ppm |
2017-01-23 | AD65938 | 0.0200 ppm |
2017-01-23 | AD65945 | 0.140 ppm |
2017-01-23 | AD65944 | 4.44 ppm |
2017-04-27 | AD81335 | 0.120 ppm |
2017-04-27 | AD81338 | 2.61 ppm |
2017-04-27 | AD81365 | 0.970 ppm |
2017-04-27 | AD81372 | 1.01 ppm |
2017-04-27 | AD81364 | 0.140 ppm |
2018-02-01 | AE11749 | 0.0200 ppm |
2018-02-01 | AE11748 | 2.00 ppm |
2018-02-01 | AE11751 | 0.150 ppm |
2018-02-01 | AE11750 | 2.03 ppm |
2018-02-01 | AE11754 | 2.05 ppm |
2018-02-01 | AE11752 | 0.130 ppm |
2018-02-01 | AE11747 | 0.0300 ppm |
2018-02-01 | AE11755 | 0.850 ppm |
2018-02-01 | AE11753 | 0.350 ppm |
2019-02-06 | AE53039 | ND |
2019-02-06 | AE53038 | 0.0500 ppm |
2019-02-06 | AE53037 | 0.230 ppm |
2019-02-06 | AE53043 | ND |
2019-02-06 | AE53042 | ND |
2019-02-06 | AE53040 | ND |
2019-02-06 | AE53041 | 0.150 ppm |
2019-09-12 | AE83108 | 2.41 ppm |
2019-09-30 | AE84988 | ND |