Macroinvertebrate Results for Summer 2002

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 18 ft. 12 in. normal 72 F 30 s 0 2 0 0 0 0 0 92 1 0 156 28 46 17 5 0 0 0 0 0 347 10
C-12 Rappahannock River at Rt. 621 20 ft. 8 in. low 75.2 F 20 s 1 0 0 0 0 0 29 31 0 3 165 21 23 5 3 1 10 0 5 0 297 8
C-13 Robinson River at Rt. 614 18 ft. 4 in. low 69.8 F 30 s 2 13 0 0 0 0 10 40 1 7 58 4 123 21 0 0 0 0 17 0 296 10
C-14 Rapidan River at Rt. 610                                                      
C-15 Mountain Run at Rt. 633 5 ft. 9 in. negligible 79 F 45 s 17 0 0 0 0 0 0 0 1 3 200 1 10 13 0 1 0 0 0 0 246 6
C-17 Mountain Run on Croftburn Farm Road 6 ft n/d low n/d 90 s 6 46 0 0 0 12 0 0 0 2 27 0 13 103 72 2 13 15 12 0 323 3
C-18 Thornton River at Rt. 628 15 ft. 6 to 10 in. low 74 F 20 s 5 0 2 0 0 0 5 104 0 5 117 0 10 85 15 0 0 0 25 0 373 7
F-1 Carter's Run at Rt. 681 10 ft. 6 in. low 75.2 F 20 s 4 2 0 0 0 0 0 38 0 21 99 17 41 22 0 0 0 0 5 4 258 9
F-3 Great Run at Rt. 802 8 ft. 2 in. low 69.8 F 20 s 5 0 0 0 0 0 0 0 0 3 277 1 32 19 0 0 0 0 0 0 337 8
F-4 Fiery Run at Rt. 635 8ft. 6 in. low 75.2 F 30 s 70 0 0 0 0 0 20 48 3

6

 10 10 29 5 0 0 0 0 0 0 201 10
F-10 Great Run at Black Snake Lake 3 ft. 1.5 in. low 68 F 20 s 1 1 0 1 0 0 6 111 8

4

 56 34 49 1 1 2 0 0 3 0 278 11
F-12 Marsh Run at Rt. 668 15 ft. 6 in. low 71.6 F 150 s 31 0 2 0 18 6 0 12 1 13 0 0 2 89 0 0 0 1 1 3 179 3
F-14 Thumb Run at Rt. 770 20 ft. 4 in. low 71.6 F 20 s 6 0 0 0 0 0 2 15 2 1 252 7 56 0 0 0 0 0 4 0 345 8
F-15 Deep Run at Rt. 615 5 ft. 6 in. low 71.6 F 50 s 0 0 0 4 0 0 43 26 7 4 50 4 57 0 0 8 0 0 5 0 208 11
G-4 South River at Rt. 619 15 ft. 6 to 8 in. low 76 F 20 s 1 0 0 0 0 0 0 106 0 8 276 60 16 6 2 4 3 0 0 0 482 9
G-5 Conway River at Rt. 230 15 ft. 6 to 12 in. low 77 F 20 s 0 5 0 0 0 0 0 58 0 0 262 74 2 3 0 4 0 0 0 0 408 8
G-6 White Run at Rt. 609 15 ft. n/d low 68 F 30 s 5 0 0 0 0 0 1 34 0 8 58 67 11 1 0 8 0 0 4 0 197 10
M-3 Rapidan River at Rt. 662 n/d 5 in. low 70 F 75 s 11 0 0 0 0 0 9 91 1 12 93 17 6 2 0 5 0 0 0 19 266 8
M-5 Great Run at Rt. 15 3 ft. 3 in. very low 62.6 F 120 s 12 27 0 0 0 0 0 11 0 3 17 0 1 58 0 11 0 0 0 53 193 6
M-6 Deep Run at Rt. 603 10 ft. 12 in. normal 72 F 30 s 2 38 0 0 0 0 28 15 0 2 106 31 23 8 0 11 0 0 0 0 264 8
M-9 White Oak Run at Rt. 638 8 ft. 8 in. low 87 F 30 s 0 4 0 0 0 0 56 15 0 7 82 18 7 5 0 4 1 0 1 0 200 9
M-11 Rose River at Rt. 670 15 ft. 8 in. low 81 F 20 s 10 0 0 0 0 0 12 81 0 1 130 36 9 37 1 0 0 0 0 3 268 8
M-12 Robinson River at Rt. 670 18 ft. 12 in. normal 66 F 20 s 2 0 0 0 0 0 4 125 0 1 9 16 11 45 0 0 1 0 0 11 225 10
M-14 Popham River at Rt. 603 18 ft. 10 in. low n/d 30 s 20 0 0 0 0 0 1 88 7 24 22 42 30 19 0 0 0 0 0 0 253 11
R-2 Hughes River at Rt. 644 20 ft. 12 in. normal 69 F 20 s 1 0 0 0 0 0 1 79 0 0 100 10 66 3 1 0 0 0 0 0 261 10
R-3 Rush River at Rt. 211/522 7 ft. 6 in. low 76 F 230 s 6 0 0 1 0 0 2 81 0 9 44 35 4 9 1 0 0 0 0 0 192 9
R-5 South Fork Thornton at confluence with North Fork of Thornton 10 ft. 2 in. low 76 F 70 s 13 4 0 0 0 0 16 83 1 2 10 12 56 22 0 4 0 0 0 0 223 11
R-6 North Fork Thornton at Rt. 612 20 ft. 5 in. low 75 F 30 s 13 0 0 1 0 0 27 21 0 1 38 39 48 9 1 8 0 0 0 0 206 11
R-8 Piney River at Rt. 612 15 ft. 3 in. low 75 F 45 s 7 0 0 1 0 0 44 46 1 3 70 75 42 52 0 2 0 0 0 0 343 11
R-12 Battle Run at Rt. 729 12 ft. 6 in. normal 72.5 F 25 s 4 3 0 0 0 0 0 120 2 7 13 0 37 20 2 19 0 0 0 1 228 12
R-17 Jordan River at Rt. 637 30 ft. 5 in. low 73.4 F 20 s 13 4 0 0 0 0 0 137 0 1 72 23 10 1 0 0 0 0 0 0 261 10