Nitrate and nitrite
Tinker AFB Bio-env Eng
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.
62
Samples
0
Samples exceeding legal limit (MCL)
50
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 | 0.405 ppm | 14 | 12 | ND - 1.31 ppm |
| 2015 | 0.272 ppm | 14 | 11 | ND - 0.590 ppm |
| 2016 | 0.216 ppm | 11 | 9 | ND - 0.570 ppm |
| 2017 | 0.281 ppm | 11 | 10 | ND - 0.468 ppm |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 0.295 ppm | 12 | 8 | ND - 0.630 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 |
|---|---|---|
| 2014-09-16 | 047699.014 | 0.570 ppm |
| 2014-09-16 | 047699.001 | 0.290 ppm |
| 2014-09-16 | 047699.002 | 0.300 ppm |
| 2014-09-16 | 047699.003 | 0.660 ppm |
| 2014-09-16 | 047699.004 | 0.190 ppm |
| 2014-09-16 | 047699.005 | 0.180 ppm |
| 2014-09-16 | 047699.006 | 0.310 ppm |
| 2014-09-16 | 047699.007 | 0.490 ppm |
| 2014-09-16 | 047699.008 | ND |
| 2014-09-16 | 047699.009 | 0.300 ppm |
| 2014-09-16 | 047699.010 | 0.500 ppm |
| 2014-09-16 | 047699.011 | 1.31 ppm |
| 2014-09-16 | 047699.012 | 0.570 ppm |
| 2014-09-16 | 047699.013 | ND |
| 2015-09-23 | 062980.014 | ND |
| 2015-09-23 | 062980.001 | 0.170 ppm |
| 2015-09-23 | 062980.002 | 0.280 ppm |
| 2015-09-23 | 062980.003 | 0.340 ppm |
| 2015-09-23 | 062980.004 | 0.370 ppm |
| 2015-09-23 | 062980.005 | 0.190 ppm |
| 2015-09-23 | 062980.006 | ND |
| 2015-09-23 | 062980.007 | 0.590 ppm |
| 2015-09-23 | 062980.008 | 0.420 ppm |
| 2015-09-23 | 062980.009 | ND |
| 2015-09-23 | 062980.010 | 0.170 ppm |
| 2015-09-23 | 062980.011 | 0.340 ppm |
| 2015-09-23 | 062980.012 | 0.350 ppm |
| 2015-09-23 | 062980.013 | 0.590 ppm |
| 2016-10-17 | SDWA-1051147-00 | 0.330 ppm |
| 2016-10-17 | SDWA-1051153-00 | ND |
| 2016-10-17 | SDWA-1051149-00 | 0.570 ppm |
| 2016-10-17 | SDWA-1051145-00 | 0.180 ppm |
| 2016-10-17 | SDWA-1051141-00 | 0.170 ppm |
| 2016-10-17 | SDWA-1051139-00 | 0.180 ppm |
| 2016-10-17 | SDWA-1051137-00 | 0.180 ppm |
| 2016-10-17 | SDWA-1051135-00 | 0.290 ppm |
| 2016-10-17 | SDWA-1051133-00 | ND |
| 2016-10-17 | SDWA-1051131-00 | 0.300 ppm |
| 2016-10-17 | SDWA-1051129-00 | 0.180 ppm |
| 2017-09-12 | 7I12172-01 | 0.468 ppm |
| 2017-09-12 | 7I12138-01 | 0.273 ppm |
| 2017-09-12 | 7I12161-01 | 0.168 ppm |
| 2017-09-12 | 7I12164-01 | 0.394 ppm |
| 2017-09-12 | 7I12167-01 | 0.165 ppm |
| 2017-09-12 | 7I12176-01 | 0.460 ppm |
| 2017-09-12 | 7I12193-01 | 0.187 ppm |
| 2017-09-12 | 7I12197-01 | 0.188 ppm |
| 2017-09-12 | 7I12200-01 | 0.468 ppm |
| 2017-09-12 | 7I12201-01 | ND |
| 2017-09-12 | 7I12191-01 | 0.325 ppm |
| 2019-10-23 | BJ23013-01 | 0.350 ppm |
| 2019-11-20 | BK20074-10 | ND |
| 2019-11-20 | BK20074-02 | ND |
| 2019-11-20 | BK20074-03 | 0.570 ppm |
| 2019-11-20 | BK20074-04 | 0.480 ppm |
| 2019-11-20 | BK20074-05 | 0.270 ppm |
| 2019-11-20 | BK20074-06 | 0.320 ppm |
| 2019-11-20 | BK20074-07 | 0.540 ppm |
| 2019-11-20 | BK20074-08 | 0.630 ppm |
| 2019-11-20 | BK20074-09 | ND |
| 2019-11-20 | BK20074-11 | 0.380 ppm |
| 2019-11-20 | BK20074-01 | ND |