Macroinvertebrate Results for Spring 2004
| Site | Stream Name | Avg. Width | Avg. Depth | Flow Rate | Temp | Collection Time | Worms | Flatworms | Leeches | Crayfish | Sowbugs | Scuds | Stoneflies | Mayflies | Dragonflies Damselflies | Hellgrammites Fishflies Alderflies | Net-spinning Caddisflies | Most Caddisflies | Beetles | Midges | Black Flies | Most True Flies | Gilled Snails | Lunged Snails | Clams | Other | Total | Index Value |
| C-5 | Hazel River at Rt. 644 | 20 ft. | 10 in. | normal | 59 F | 20 s | 8 | 0 | 0 | 0 | 0 | 0 | 8 | 144 | 0 | 0 | 43 | 11 | 4 | 26 | 53 | 0 | 0 | 0 | 0 | 0 | 297 | 10 |
| F-12 | Marsh Run at Rt. 668 | 16 ft. | 1.5 in. | normal | 68 F | 20 s | 17 | 12 | 0 | 3 | 25 | 0 | 2 | 5 | 6 | 0 | 20 | 0 | 9 | 37 | 60 | 0 | 0 | 1 | 3 | 0 | 200 | 4 |
| F-15 | Deep Run at Rt. 615 | 14 ft. | 6 in. | normal | 63 F | 20 s | 5 | 0 | 0 | 0 | 0 | 0 | 50 | 57 | 0 | 2 | 31 | 24 | 25 | 6 | 14 | 0 | 0 | 1 | 3 | 0 | 218 | 11 |
| M-6 | Deep Run at Rt. 603 | 15 ft. | 24 in. | normal | 46 F | 20 s | 2 | 0 | 0 | 1 | 0 | 0 | 40 | 56 | 0 | 0 | 21 | 7 | 2 | 24 | 14 | 1 | 0 | 0 | 0 | 0 | 168 | 10 |
| M-9 | White Oak Run at Rt. 638 | 24 ft. | 24 in. | normal | 41 F | 40 s | 146 | 0 | 0 | 0 | 0 | 0 | 70 | 37 | 0 | 0 | 8 | 0 | 2 | 45 | 8 | 8 | 0 | 0 | 0 | 0 | 324 | 7 |
| M-11 | Rose River at Rt. 670 | 20 ft. | 7 in. | high | 57 F | 20 s | 3 | 0 | 0 | 0 | 0 | 0 | 36 | 50 | 1 | 3 | 52 | 23 | 4 | 14 | 1 | 0 | 0 | 0 | 0 | 3 | 189 | 9 |
| M-12 | Robinson River at Rt. 670 | 4 ft. | 6 in. | high | 63 F | 20 s | 0 | 0 | 0 | 0 | 0 | 0 | 42 | 172 | 1 | 0 | 8 | 17 | 2 | 29 | 8 | 0 | 0 | 0 | 0 | 0 | 279 | 10 |
| M-14 | Popham River at Rt. 603 | 20 ft. | 20 in. | high | 65 F | 100 s | 8 | 0 | 0 | 0 | 0 | 0 | 7 | 102 | 1 | 2 | 58 | 12 | 12 | 60 | 0 | 11 | 0 | 0 | 0 | 0 | 228 | 7 |
| R-2 | Hughes River at Rt. 644 | 50 ft. | 12 in. | normal | 54 F | 20 s | 3 | 0 | 0 | 0 | 0 | 0 | 29 | 98 | 0 | 0 | 12 | 0 | 3 | 71 | 93 | 0 | 0 | 0 | 0 | 0 | 268 | 9 |
| R-5 | South Fork Thornton at confluence with North Fork Thornton | 15 ft. | 10-12 in. | normal | 51 F | 20 s | 4 | 0 | 0 | 0 | 0 | 0 | 14 | 161 | 35 | 14 | 0 | 2 | 16 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 289 | 11 |
| R-6 | North Fork Thornton at Rt. 612 | 20 ft. | 8 in. | high | 54 F | 30 s | 7 | 0 | 0 | 0 | 0 | 0 | 128 | 46 | 1 | 2 | 37 | 33 | 18 | 7 | 0 | 9 | 0 | 0 | 0 | 0 | 245 | 10 |
| R-8 | Piney River at Rt. 612 | 20 ft. | 8 in. | high | 54 F | 30 s | 3 | 0 | 0 | 0 | 10 | 0 | 100 | 31 | 0 | 1 | 10 | 35 | 6 | 2 | 0 | 10 | 0 | 0 | 0 | 0 | 208 | 10 |