Nonafluoro-3,6-dioxaheptanoic acid
City of Richwood
12
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 0.00261 ppb | 12 | 1 | ND - 0.0313 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2023-05-02 | 104218P | 0.0313 ppb |
| 2023-05-02 | 104219P | ND |
| 2023-05-02 | 104220P | ND |
| 2023-05-24 | 104625R | ND |
| 2023-05-24 | 104626R | ND |
| 2023-05-24 | 104627R | ND |
| 2023-08-28 | 107119P | ND |
| 2023-08-28 | 107120P | ND |
| 2023-11-14 | 109983P | ND |
| 2023-11-14 | 109984P | ND |
| 2023-11-14 | 109985P | ND |
| 2023-11-28 | 110559R | ND |