Nitrate
Pace Water System Inc.
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.422 ppm | 11 | 10 | ND - 1.50 ppm |
| 2015 | 0.507 ppm | 11 | 10 | ND - 1.70 ppm |
| 2016 | 0.568 ppm | 11 | 10 | ND - 1.60 ppm |
| 2017 | 0.579 ppm | 11 | 10 | ND - 1.70 ppm |
| 2018 | 0.546 ppm | 11 | 10 | ND - 1.60 ppm |
| 2019 | 0.500 ppm | 11 | 10 | ND - 1.70 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 | Result |
|---|---|
| 2014-05-06 | 0.120 ppm |
| 2014-05-06 | 1.50 ppm |
| 2014-05-06 | 0.920 ppm |
| 2014-05-06 | 0.720 ppm |
| 2014-05-06 | 0.190 ppm |
| 2014-05-06 | 0.120 ppm |
| 2014-05-13 | 0.750 ppm |
| 2014-05-13 | ND |
| 2014-05-13 | 0.0770 ppm |
| 2014-05-13 | 0.0500 ppm |
| 2014-05-13 | 0.200 ppm |
| 2015-08-05 | 0.0420 ppm |
| 2015-08-05 | 0.880 ppm |
| 2015-08-05 | 1.70 ppm |
| 2015-08-05 | 0.130 ppm |
| 2015-08-05 | 0.970 ppm |
| 2015-08-05 | 0.500 ppm |
| 2015-08-05 | 0.250 ppm |
| 2015-08-05 | 0.750 ppm |
| 2015-08-05 | 0.220 ppm |
| 2015-08-05 | ND |
| 2015-08-05 | 0.130 ppm |
| 2016-08-03 | 0.880 ppm |
| 2016-08-03 | 1.50 ppm |
| 2016-08-03 | 1.000 ppm |
| 2016-08-03 | 0.0410 ppm |
| 2016-08-03 | 1.60 ppm |
| 2016-08-03 | 0.190 ppm |
| 2016-08-03 | 0.300 ppm |
| 2016-08-03 | 0.280 ppm |
| 2016-08-03 | 0.130 ppm |
| 2016-08-03 | 0.330 ppm |
| 2016-08-03 | ND |
| 2017-03-16 | 0.980 ppm |
| 2017-03-16 | 0.150 ppm |
| 2017-03-16 | 0.820 ppm |
| 2017-03-16 | 1.10 ppm |
| 2017-04-11 | 0.160 ppm |
| 2017-04-11 | ND |
| 2017-04-11 | 0.270 ppm |
| 2017-04-11 | 0.140 ppm |
| 2017-04-11 | 0.0450 ppm |
| 2017-04-11 | 1.70 ppm |
| 2017-04-11 | 1.000 ppm |
| 2018-08-08 | 0.0470 ppm |
| 2018-08-08 | 0.480 ppm |
| 2018-08-08 | 1.000 ppm |
| 2018-08-08 | 1.60 ppm |
| 2018-08-08 | 0.450 ppm |
| 2018-08-08 | 0.290 ppm |
| 2018-08-08 | 0.120 ppm |
| 2018-08-08 | 0.170 ppm |
| 2018-08-08 | 0.750 ppm |
| 2018-08-08 | ND |
| 2018-08-08 | 1.10 ppm |
| 2019-07-10 | 1.10 ppm |
| 2019-07-10 | 0.190 ppm |
| 2019-07-10 | 0.320 ppm |
| 2019-07-10 | 1.10 ppm |
| 2019-07-10 | 0.130 ppm |
| 2019-07-10 | 0.180 ppm |
| 2019-07-10 | 0.670 ppm |
| 2019-07-10 | 1.70 ppm |
| 2019-07-10 | 0.0540 ppm |
| 2019-07-10 | 0.0530 ppm |
| 2019-07-10 | ND |