Nitrite
Middletown Water Department
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.
14
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 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
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 |
|---|---|---|
| 2018-03-01 | NOX 200489001 | ND |
| 2018-04-16 | NOX 200492152 | ND |
| 2019-05-13 | NOX 200531892 | ND |
| 2019-05-21 | NOX 200533082 | ND |
| 2020-05-06 | NOX 200574724 | ND |
| 2020-05-14 | NOX 200575834 | ND |
| 2021-03-30 | NOX 200611335 | ND |
| 2021-03-30 | NOX 200611336 | ND |
| 2022-05-11 | N300182524 300182530 | ND |
| 2022-05-11 | N300182526 300182543 | ND |
| 2023-06-23 | N300370712 300370714 | ND |
| 2023-06-23 | N300370718 300370720 | ND |
| 2023-06-23 | N300370724 300370726 | ND |
| 2023-06-23 | N300370731 300370733 | ND |