Nitrate and nitrite
Barton Dade Cedar & Jasper Counties Consolidated Public Water Supply District 1
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.0133 ppm | 9 | 1 | ND - 0.120 ppm |
| 2019 | 0.0133 ppm | 9 | 1 | ND - 0.120 ppm |
| 2020 | 0.0191 ppm | 9 | 4 | ND - 0.134 ppm |
| 2021 | 0.0139 ppm | 9 | 1 | ND - 0.125 ppm |
| 2022 | 0.0145 ppm | 10 | 1 | ND - 0.145 ppm |
| 2023 | 0.0186 ppm | 9 | 1 | ND - 0.167 ppm |
ppm = parts per million
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.14 ppm
The EWG 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 |
|---|---|---|
| 2018-05-18 | AD20175 | ND |
| 2018-05-18 | AD20176 | ND |
| 2018-05-18 | AD20177 | ND |
| 2018-05-18 | AD20178 | ND |
| 2018-05-18 | AD20179 | ND |
| 2018-05-18 | AD20180 | ND |
| 2018-05-18 | AD20181 | ND |
| 2018-05-18 | AD20174 | ND |
| 2018-05-24 | AD26964 | 0.120 ppm |
| 2019-05-20 | AD47552 | 0.120 ppm |
| 2019-05-20 | AD47553 | ND |
| 2019-05-20 | AD47551 | ND |
| 2019-05-20 | AD47550 | ND |
| 2019-05-20 | AD47548 | ND |
| 2019-05-20 | AD47547 | ND |
| 2019-05-20 | AD47545 | ND |
| 2019-05-20 | AD47546 | ND |
| 2019-05-20 | AD47549 | ND |
| 2020-05-26 | 2009156 | 0.0120 ppm |
| 2020-05-26 | 2009159 | ND |
| 2020-05-26 | 2009158 | ND |
| 2020-05-26 | 2009167 | ND |
| 2020-05-26 | 2009157 | 0.134 ppm |
| 2020-05-26 | 2009160 | 0.0130 ppm |
| 2020-05-26 | 2009161 | ND |
| 2020-05-26 | 2009162 | 0.0130 ppm |
| 2020-05-26 | 2009166 | ND |
| 2021-05-17 | 2111240 | ND |
| 2021-05-17 | 2111248 | ND |
| 2021-05-17 | 2111247 | 0.125 ppm |
| 2021-05-17 | 2111246 | ND |
| 2021-05-17 | 2111245 | ND |
| 2021-05-17 | 2111243 | ND |
| 2021-05-17 | 2111242 | ND |
| 2021-05-17 | 2111241 | ND |
| 2021-05-17 | 2111244 | ND |
| 2022-05-17 | 2211802 | 0.145 ppm |
| 2022-05-17 | 2211801 | ND |
| 2022-05-17 | 2211803 | ND |
| 2022-05-17 | 2211800 | ND |
| 2022-05-17 | 2211795 | ND |
| 2022-05-17 | 2211796 | ND |
| 2022-05-17 | 2211797 | ND |
| 2022-05-17 | 2211798 | ND |
| 2022-05-17 | 2211799 | ND |
| 2022-11-11 | 2219082 | ND |
| 2023-05-19 | 2308376 | ND |
| 2023-05-19 | 2308377 | ND |
| 2023-05-19 | 2308378 | ND |
| 2023-05-19 | 2308379 | ND |
| 2023-05-19 | 2308375 | ND |
| 2023-05-19 | 2308380 | ND |
| 2023-05-19 | 2308381 | ND |
| 2023-05-19 | 2308382 | 0.167 ppm |
| 2023-05-19 | 2308383 | ND |