| Station: | NARRAGUAGUS RIVER - STATION 81 |
| Station Number: | S-81 |
| Town: | CHERRYFIELD |
| County: | WASHINGTON |
| Major Drainage: | MAINE COASTAL |
| Site Type: | STREAM/RIVER BIOMONITORING |
| Sample Type: | MACROINVERTEBRATE |
| Latitude: | 44.60530086 |
| Longitude: | -67.92760772 |
| Sample ID | Sample Date | Statutory Class | Attainment | Report | Final Determination |
| 101 | 9/6/1984 | B | No | NA | |
| 417 | 8/30/1993 | B | No | C | |
| 1037 | 8/27/2001 | B | Yes | A | |
| 1576 | 8/21/2006 | B | Yes | A | |
| 2058 | 8/25/2011 | B | Yes | View | A |
| 2503 | 8/23/2016 | B | Yes | View | B |
| 2884 | 8/24/2021 | B | Yes | View | A |
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