Nitrite
Greenwood Acres Water Company
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.
54
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 | 0.157 ppm | 24 | 22 | ND - 0.540 ppm |
| 2019 | 0.224 ppm | 24 | 23 | ND - 0.660 ppm |
| 2020 | 0.140 ppm | 6 | 6 | 0.1000 ppm - 0.170 ppm |
| 2021 | ND | 12 | 0 | ND |
| 2022 | 0.000833 ppm | 12 | 1 | ND - 0.01000 ppm |
| 2023 | ND | 12 | 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 |
|---|---|---|
| 2018-01-18 | 1A81310-02 | 0.110 ppm |
| 2018-01-18 | 1A81310-01 | 0.120 ppm |
| 2018-02-19 | 1B81307-02 | 0.0900 ppm |
| 2018-02-19 | 1B81307-01 | 0.1000 ppm |
| 2018-03-15 | 1C81325-01 | 0.170 ppm |
| 2018-03-15 | 1C81325-02 | 0.150 ppm |
| 2018-04-23 | 1D81853-01 | 0.160 ppm |
| 2018-04-23 | 1D81853-02 | 0.170 ppm |
| 2018-05-15 | 1E81261-01 | 0.160 ppm |
| 2018-05-15 | 1E81261-02 | 0.150 ppm |
| 2018-06-20 | 1F81810-01 | 0.210 ppm |
| 2018-06-20 | 1F81810-02 | 0.240 ppm |
| 2018-07-17 | 1G81523-01 | 0.0400 ppm |
| 2018-07-17 | 1G81523-02 | 0.0600 ppm |
| 2018-08-23 | 1H82168-01 | ND |
| 2018-08-23 | 1H82168-02 | ND |
| 2018-09-26 | 1I82137-01 | 0.220 ppm |
| 2018-09-26 | 1I82137-02 | 0.170 ppm |
| 2018-10-23 | 1J82065-01 | 0.540 ppm |
| 2018-10-23 | 1J82065-02 | 0.160 ppm |
| 2018-11-27 | 1K81872-01 | 0.0800 ppm |
| 2018-11-27 | 1K81872-02 | 0.0800 ppm |
| 2018-12-11 | 1L80858-01 | 0.420 ppm |
| 2018-12-11 | 1L80858-02 | 0.170 ppm |
| 2019-01-08 | 1A90485-01 | 0.180 ppm |
| 2019-01-08 | 1A90485-02 | 0.0800 ppm |
| 2019-02-13 | 1B90965-02 | 0.260 ppm |
| 2019-02-13 | 1B90965-01 | 0.260 ppm |
| 2019-03-19 | 1C91396-01 | 0.130 ppm |
| 2019-03-19 | 1C91396-02 | 0.0800 ppm |
| 2019-04-10 | 1D91074-01 | 0.200 ppm |
| 2019-04-10 | 1D91074-02 | 0.130 ppm |
| 2019-05-23 | 1E92123-01 | 0.310 ppm |
| 2019-05-23 | 1E92123-02 | 0.200 ppm |
| 2019-06-26 | 1F92021-01 | 0.260 ppm |
| 2019-06-26 | 1F92021-02 | 0.0900 ppm |
| 2019-07-10 | 1G90999-01 | 0.660 ppm |
| 2019-07-10 | 1G90999-02 | 0.180 ppm |
| 2019-08-22 | 1H91873-01 | 0.520 ppm |
| 2019-08-22 | 1H91873-02 | 0.0600 ppm |
| 2019-09-25 | 1I91909-01 | 0.410 ppm |
| 2019-09-25 | 1I91909-02 | ND |
| 2019-10-23 | 1J92174-01 | 0.460 ppm |
| 2019-10-23 | 1J92174-02 | 0.1000 ppm |
| 2019-11-07 | 1K90525-01 | 0.190 ppm |
| 2019-11-07 | 1K90525-02 | 0.180 ppm |
| 2019-12-05 | 1L90557-01 | 0.370 ppm |
| 2019-12-05 | 1L90557-02 | 0.0700 ppm |
| 2020-01-14 | 1A01049-01 | 0.170 ppm |
| 2020-01-14 | 1A01049-02 | 0.140 ppm |
| 2020-02-24 | 1B01489-01 | 0.160 ppm |
| 2020-02-24 | 1B01489-02 | 0.160 ppm |
| 2020-03-17 | 1C01177-01 | 0.1000 ppm |
| 2020-03-17 | 1C01177-02 | 0.110 ppm |