| CODES | SITE NAMES....UPDATE INFORMATION |
| 231113 | Allagash River near Allagash ME ... (1 hr) |
| 235125 | Androscoggin River at Mooselookmeguntic Upper Dam ME ... (external) |
| 235123 | Androscoggin River at Rangeley Lake, Oquossoc ME ... (external) |
| 231116 | Androscoggin River at Rumford ME ... (1 hr) |
| 231118 | Androscoggin River near Auburn ME ... (1 hr) |
| 231122 | Aroostook River at Washburn ME ... (1 hr) |
| 231123 | Aroostook River near Masardis ME ... (1 hr) |
| 235130 | Aziscohos Lake Level at Aziscohos Dam ME ... (external) |
| 231126 | Big Black River near Depot Mtn ME ... (1 hr) |
| 235134 | Brassua Lake Level and Outflow at Brassua Dam near Rockwood ME ... (external) |
| 231128 | Carrabassett River near North Anson ME ... (1 hr) |
| 235131 | Dead River at Flagstaff Dam On Flagstaff Lake ME ... (external) |
| 231144 | Fish River near Fort Kent ME ... (1 hr) |
| 235132 | Flagstaff Lake Level at Long Falls Dam ME ... (external) |
| 235149 | Graham Lake at Union River Dam Ellsworth ME ... (external) |
| 231146 | Grand Lake Stream at Grand Lake Stream ME ... (1 hr) |
| 235139 | Indian Pond Level at Harris Station Dam ME ... (external) |
| 235138 | Kennebec River at Harris Station Dam On Indian Pond ME ... (external) |
| 231158 | Kennebec River at North Sidney ME ... (1 hr) |
| 231159 | Kennebec River at the Forks ME ... (1 hr) |
| 235142 | Kennebec River at Williams Dam, Solon ME ... (external) |
| 235140 | Kennebec River at Wyman Dam near Bingham ME ... (external) |
| 235137 | Kennebec River, East and West Outlets On Moosehead Lake ME ... (external) |
| 231164 | Little Androscoggin River near South Paris ME ... (1 hr) |
| 235129 | Magalloway River at Aziscohos Dam ME ... (external) |
| 231172 | Mattawamkeag River near Mattawamkeag ME ... (1 hr) |
| 235133 | Moose River at Brassua Dam on Brassua Lake near Rockwood ME ... (external) |
| 235136 | Moosehead Lake, East/West Outflows and East Outlet Level ME ... (external) |
| 235126 | Mooselookmeguntic Lake Level ME ... (external) |
| 231111 | Narraguagus River at Cherryfield ME ... (1 hr) |
| 235144 | Penobscot River at Milford Hydro Dam, Milford ME ... (external) |
| 231185 | Penobscot River at West Enfield ME ... (1 hr) |
| 235117 | Penobscot River, Lower W Br Dolby Station ME ... (external) |
| 235114 | Penobscot River, Lower W Br, McKay Stn (Ripogenus Dam) ME ... (external) |
| 235115 | Penobscot River, Lower W Br, Millinocket Lake Dam ME ... (external) |
| 235116 | Penobscot River, Lower W Br, North Twin Station ME ... (external) |
| 235118 | Penobscot River, Lower W Br, Weldon Station ME ... (external) |
| 235145 | Penobscot River, Stillwater Branch. Gilman Falls Dam near Stillwater ME ... (external) |
| 235119 | Penobscot River, Upper W Br, Canada Falls Dam ME ... (external) |
| 235121 | Penobscot River, Upper W Br, Caucomgomoc Dam ME ... (external) |
| 235122 | Penobscot River, Upper W Br, Ragged Lake Dam ME ... (external) |
| 235120 | Penobscot River, Upper W Br, Seboomook Dam ME ... (external) |
| 231187 | Piscataquis River at Medford ME ... (1 hr) |
| 231188 | Piscataquis River near Dover-Foxcroft ME ... (1 hr) |
| 235124 | Rangeley Lake Level, Oquossoc ME ... (external) |
| 235127 | Rapid River Middle Dam On Richardson Lake ME ... (external) |
| 235128 | Richardson Lake Level ME ... (external) |
| 231196 | Saco River at Cornish ME ... (1 hr) |
| 231212 | Sandy River near Mercer ME ... (1 hr) |
| 231215 | Sheepscot River at North Whitefield ME ... (1 hr) |
| 231217 | St Croix River at Baring ME ... (1 hr) |
| 231219 | St Croix River at Vanceboro ME ... (1 hr) |
| 231223 | St John River at Dickey ME ... (1 hr) |
| 231224 | St John River at Ninemile Bridge ME ... (1 hr) |
| 231226 | St John River below Fish Riv at Fort Kent ME ... (1 hr) |
| 231229 | Swift River near Roxbury ME ... (1 hr) |
| 235147 | Union River Dam On Leonard Lake, Ellsworth ME ... (external) |
| 231238 | Wild River at Gilead ME ... (1 hr) |
| 235143 | Williams Dam Pool, Solon ME ... (external) |
| 235141 | Wyman Lake at Wyman Dam ME ... (external) |