| Station Name | Station ID | Map | Most Recent Data | Reports |
| Onion River - In Waldo Mill Pond | 603347 |
Map
| 1994 |
Details
|
| Onion River-Hingham Millpond - 100 Ft. Upst. Of South End Of Dam | 603446 |
Map
| 1999 |
Details
|
| Onion River-Hingham Millpond - 150 Ft. Upst. Of North End Of Dam | 603447 |
Map
| 1999 |
Details
|
| Onion River-Hingham Millpond - 200 Ft. Upst Of Middle Of Dam | 603448 |
Map
| 1999 |
Details
|