Nitrite
Amon G Carter Lake Water Supply Corporation
Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.
24
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.132 ppm | 4 | 2 | ND - 0.348 ppm |
| 2019 | 0.234 ppm | 4 | 3 | ND - 0.751 ppm |
| 2020 | 0.371 ppm | 4 | 2 | ND - 0.830 ppm |
| 2021 | 0.0645 ppm | 4 | 2 | ND - 0.208 ppm |
| 2022 | 0.0356 ppm | 4 | 3 | ND - 0.0503 ppm |
| 2023 | 0.205 ppm | 4 | 4 | 0.0201 ppm - 0.438 ppm |
ppm = parts per million
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 1 ppm
The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.
ppm = parts per million
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-27 | Q1807941002 | ND |
| 2018-06-05 | Q1822322001 | 0.348 ppm |
| 2018-09-26 | Q1838523001 | ND |
| 2018-12-11 | Q1850825002 | 0.180 ppm |
| 2019-02-20 | Q1907489002 | ND |
| 2019-05-30 | Q1930240001 | 0.0853 ppm |
| 2019-09-24 | Q1968051001 | 0.0993 ppm |
| 2019-12-10 | Q1979824001 | 0.751 ppm |
| 2020-03-18 | Q2011978002 | 0.830 ppm |
| 2020-06-16 | Q2023979001 | 0.652 ppm |
| 2020-09-21 | Q2037480001 | ND |
| 2020-11-17 | Q2045518002 | ND |
| 2021-03-10 | Q2106379002 | ND |
| 2021-05-12 | Q2112416001 | ND |
| 2021-09-28 | Q2126542001 | 0.0498 ppm |
| 2021-11-29 | Q2132840001 | 0.208 ppm |
| 2022-03-07 | Q2207650001 | 0.0503 ppm |
| 2022-05-11 | Q2214198001 | 0.0490 ppm |
| 2022-08-03 | Q2222250001 | 0.0432 ppm |
| 2022-11-09 | Q2233924001 | ND |
| 2023-01-24 | Q2303294001 | 0.334 ppm |
| 2023-04-18 | Q2314277002 | 0.0201 ppm |
| 2023-07-25 | Q2329495001 | 0.0297 ppm |
| 2023-12-06 | Q2352188001 | 0.438 ppm |