Nitrite
Linkwood Estates Subdivision
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.
23
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 | 0.0281 ppm | 4 | 2 | ND - 0.0594 ppm |
| 2019 | 0.157 ppm | 5 | 4 | ND - 0.628 ppm |
| 2020 | 0.152 ppm | 4 | 3 | ND - 0.384 ppm |
| 2021 | 0.150 ppm | 3 | 3 | 0.0180 ppm - 0.391 ppm |
| 2022 | 0.0911 ppm | 3 | 2 | ND - 0.213 ppm |
| 2023 | 0.206 ppm | 4 | 3 | ND - 0.503 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 |
|---|---|---|
| 2018-03-15 | Q1810753001 | ND |
| 2018-05-22 | Q1820727001 | ND |
| 2018-08-16 | Q1832763001 | 0.0531 ppm |
| 2018-11-12 | Q1845462001 | 0.0594 ppm |
| 2019-03-05 | Q1909165005 | 0.112 ppm |
| 2019-03-05 | Q1909165006 | 0.628 ppm |
| 2019-06-19 | Q1937667001 | 0.0319 ppm |
| 2019-08-12 | Q1954010001 | 0.0127 ppm |
| 2019-11-14 | Q1976942001 | ND |
| 2020-02-12 | Q2005782008 | 0.384 ppm |
| 2020-06-25 | Q2025626001 | ND |
| 2020-09-22 | Q2037538001 | 0.161 ppm |
| 2020-12-03 | Q2048412001 | 0.0631 ppm |
| 2021-03-16 | Q2106820008 | 0.0180 ppm |
| 2021-09-13 | Q2124828003 | 0.0411 ppm |
| 2021-12-08 | Q2134362001 | 0.391 ppm |
| 2022-03-22 | Q2209181004 | 0.213 ppm |
| 2022-06-06 | Q2215736001 | ND |
| 2022-11-28 | Q2235277001 | 0.0602 ppm |
| 2023-02-21 | Q2307021001 | 0.271 ppm |
| 2023-05-08 | Q2317282001 | 0.0499 ppm |
| 2023-09-07 | Q2338620001 | 0.503 ppm |
| 2023-12-04 | Q2351282003 | ND |