Nitrate and nitrite
Branson
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.
47
Samples
0
Samples exceeding legal limit (MCL)
22
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.296 ppm | 8 | 6 | ND - 0.690 ppm |
| 2015 | 0.235 ppm | 8 | 8 | 0.0120 ppm - 0.710 ppm |
| 2016 | 0.172 ppm | 7 | 6 | ND - 0.610 ppm |
| 2017 | 0.259 ppm | 8 | 7 | ND - 0.690 ppm |
| 2018 | 0.267 ppm | 8 | 6 | ND - 0.770 ppm |
| 2019 | 0.288 ppm | 8 | 8 | 0.0150 ppm - 0.730 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 |
|---|---|---|
| 2014-08-19 | AC32018 | 0.690 ppm |
| 2014-08-19 | AC32019 | 0.240 ppm |
| 2014-08-19 | AC32020 | 0.0230 ppm |
| 2014-08-19 | AC32021 | ND |
| 2014-08-19 | AC32022 | ND |
| 2014-08-19 | AC32023 | 0.670 ppm |
| 2014-08-19 | AC32024 | 0.0540 ppm |
| 2014-08-19 | AC32017 | 0.690 ppm |
| 2015-03-24 | AC43984 | 0.0590 ppm |
| 2015-03-24 | AC43986 | 0.0140 ppm |
| 2015-03-24 | AC43985 | 0.710 ppm |
| 2015-03-24 | AC43987 | 0.0180 ppm |
| 2015-03-24 | AC43988 | 0.300 ppm |
| 2015-03-24 | AC43983 | 0.0120 ppm |
| 2015-03-26 | AC43836 | 0.390 ppm |
| 2015-03-26 | AC43835 | 0.380 ppm |
| 2016-03-09 | AC67802 | 0.610 ppm |
| 2016-03-28 | AC68088 | 0.0130 ppm |
| 2016-03-28 | AC68089 | 0.0540 ppm |
| 2016-03-28 | AC68090 | ND |
| 2016-03-28 | AC68091 | 0.400 ppm |
| 2016-03-28 | AC68087 | 0.110 ppm |
| 2016-03-28 | AC68092 | 0.0150 ppm |
| 2017-03-28 | AC92322 | 0.270 ppm |
| 2017-03-28 | AC92316 | 0.0870 ppm |
| 2017-03-28 | AC92319 | 0.0260 ppm |
| 2017-03-28 | AC92323 | 0.310 ppm |
| 2017-03-28 | AC92317 | 0.680 ppm |
| 2017-03-28 | AC92320 | 0.690 ppm |
| 2017-03-28 | AC92321 | ND |
| 2017-03-28 | AC92318 | 0.0110 ppm |
| 2018-03-12 | AD16894 | 0.0460 ppm |
| 2018-03-12 | AD16896 | 0.190 ppm |
| 2018-03-12 | AD16897 | 0.770 ppm |
| 2018-03-12 | AD16898 | ND |
| 2018-03-12 | AD16899 | 0.0160 ppm |
| 2018-04-04 | AD18771 | ND |
| 2018-05-16 | AD16743 | 0.550 ppm |
| 2018-05-16 | AD16744 | 0.560 ppm |
| 2019-03-13 | AD40668 | 0.540 ppm |
| 2019-03-13 | AD40669 | 0.550 ppm |
| 2019-03-27 | AD40954 | 0.0150 ppm |
| 2019-03-27 | AD40955 | 0.730 ppm |
| 2019-03-27 | AD40956 | 0.0170 ppm |
| 2019-03-27 | AD40957 | 0.140 ppm |
| 2019-03-27 | AD40958 | 0.0200 ppm |
| 2019-03-27 | AD40959 | 0.290 ppm |