| Station: | GRAY BROOK - STATION 1023 |
| Station Number: | S-1023 |
| Town: | FORT FAIRFIELD |
| County: | AROOSTOOK |
| Major Drainage: | ST. JOHN |
| Site Type: | STREAM/RIVER BIOMONITORING |
| Sample Type: | MACROINVERTEBRATE |
| Latitude: | 46.81420086 |
| Longitude: | -67.87938097 |
| Sample ID | Sample Date | Statutory Class | Attainment | Report | Final Determination |
| 2273 | 8/19/2014 | B | Yes | View | B |
| 2742 | 8/5/2019 | B | Yes | View | B |