Macroinvertebrate Results for Spring 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-1 Crooked Run at Route 15 15 ft. 3 in. normal 52 F 50 s 4 0 0 0 0 0 0 20 0 4 44 107 13 58 0 1 0 0 3 0 254 11
C-2 Cedar Run at Route 522 20 ft. 11 in. normal 59 F 20 s 15 4 0 0 23 0 20 77 0 5 2 26 65 69 10 0 2 11 8 0 337 9
C-5 Hazel River at Rte. 644 15 ft. 8 in. normal 52 F 20 s 0 0 0 0 0 0 6 132 1 9 123 27 4 35 20 0 0 0 0 0 357 9
C-12 Rappahannock River at Rt. 621 45 ft. 8 in. normal 56.5 F 40 s 26 8 0 0 0 0 3 120 3 3 5 2 56 3 10 9 3 0 14 0 265 11
C-13 Robinson River at Rt. 614 60 ft. 18 in. normal 58 F 70 s 5 3 0 0 0 0 36 108 11 0 37 2 17 50 1 18 1 0 9 0 298 10
C-14 Rapidan River at Rt. 610 50 ft. 24 in. normal 68 F 70 s 18 1 0 0 0 0 42 26 5 0 0 5 30 29 1 1 4 5 35 0 201 7
C-15 Mountain Run at Rt. 633 5 ft. 9 in. normal 75 F 20 s 15 41 0 0 0 0 0 0 0 0 84 2 5 87 2 3 0 0 0 0 239 6
C-17 Mountain Run on Croftburn Farm Rd. 14 ft. 6 in. normal 61.5 F 60 s 4 33 0 0 0 3 0 0 0 0 4 0 18 93 48 0 8 3 7 0 221 5
C-18 Thornton River at Rt. 628 30 ft. 6 in. normal 69 F 25 s 10 0 0 0 0 0 23 131 1 0 3 5 4 41 4 0 0 0 7 0 229 9
F-1 Carter's Run at Rt. 681 30 ft. 36 in. normal n/d 40 s 63 0 0 0 0 0 0 81 2 3 0 19 25 0 0 0 0 0 11 0 204 10
F-3 Great Run at Rt. 802 8 ft. 6 to 8 in. normal 55.5 F 20 s 1 3 0 0 0 0 0 3 0 2 430 16 8 77 5 0 0 2 0 0 547 5
F-4 Fiery Run at Rt. 635 6 to 7 ft. 10 to 12 in. normal 57 F 30 s 11 0 0 1 0 0 37 125 2 4 21 11 23 34 0 4 0 0 0 0 273 12
F-10 Great Run at Black Snake Lake 15 ft. 8 in. high 59 F 20 s 3 0 0 0 0 0 17 92 1 3 52 60 62 28 0 1 0 0 1 0 320 12
F-12 Marsh Run at Rt. 668 14 ft. 6 in. low 59 F 50 s 77 1 0 0 0 16 0 15 0 0 1 2 1 110 17 9 0 35 4 0 288 2
F-14 Thumb Run at Rt. 770 30 ft. 18 in. high 62 F 35 s 7 2 0 0 0 0 4 55 0 0 12 21 5 60 35 0 0 0 11 0 212 8
F-15 Deep Run at Rt. 615 15 ft. 7 in. normal 52 F 20 s 2 3 0 0 0 0 21 125 5 6 26 31 32 7 3 11 0 4 28 0 304 10
G-4 South River at Rt. 619 20 ft. 10 to 12 in. normal 49 F 20 s 3 0 0 0 0 0 9 54 0 8 66 36 4 32 3 4 15 0 0 0 234 8
G-5 Conway River at Rt. 230 25 to 30 ft. 8 to 12 in. normal 58 F 40 s 2 2 0 0 0 0 21 113 0 0 106 14 8 38 1 7 1 0 0 0 313 9
G-6 White Run at Rt. 609 12 ft. 6 in. high 65 F 30 s 2 0 0 0 0 0 0 17 0 6 11 2 8 69 303 6 0 0 1 0 425 6
M-3 Rapidan River at Rt. 662 25 ft. 6 in. normal n/d 60 s 17 0 0 0 0 0 2 33 1 1 123 1 7 10 0 10 0 0 0 0 205 7
M-4 Beautiful Run at Rt. 620 15 ft. 8 in. normal 57 F 40 s 2 0 0 0 0 0 7 47 0 5 78 0 7 53 11 3 0 0 3 0 216 8
M-5 Great Run at Rt. 15 15 ft. 3 in. normal 54 F 90 s 11 4 0 2 0 0 0 35 0 2 0 0 8 172 1 11 0 0 1 0 247 6
M-6 Deep Run at Rt. 603 8 ft. 12 in. normal 54 F 20 s 21 0 0 0 0 0 138 0 0 0 3 3 12 42 40 66 0 0 0 0 243 9
M-9 White Oak Run at Rt. 638 12 ft. 12 in. normal 54 F 40 s 5 3 0 0 0 0 63 48 0 2 54 12 7 60 2 11 0 0 23 1 291 9
M-11 Rose River at Rt. 670 n/d 14 in. high 50 F 20 s 17 0 0 0 0 0 12 81 0 1 57 51 27 8 0 0 0 0 0 0 257 10
M-12 Robinson River at Rt. 670 15 ft. 10 in. high 61 F 20 s 0 0 0 0 0 0 29 107 0 0 37 14 5 21 3 0 0 0 0 0 216 10
M-14 Popham River at Rt. 603 18 ft. 16 in. low 62.5 F 20 s 39 0 0 1 0 0 1 36 0 6 77 20 11 66 1 3 0 0 0 2 263 8
M-16 Rapidan River at Rt. 671 25 ft. 12 in. normal 77 F 50 s 111 0 0 0 0 0 11 24 2 0 41 0 5 0 20 0 0 6 0 0 220 2
O-1 Blue Run at Rt. 20 12 ft. 6 in. normal 75 F 45 s 2 3 0 0 0 0 0 14 0 2 100 0 76 10 9 2 2 4 1 0 225 6
O-2 Mine Run at Rt. 611 10 ft. 12 in. normal 57 F 20 s 14 7 0 1 0 0 26 33 1 5 4 64 21 20 9 1 0 0 13 0 219 11
O-3 Mountain Run at Rt. 611 13 ft. 12 in. normal 56.5 F 20 s 16 8 0 0 0 1 31 42 1 3 4 11 48 29 10 0 0 1 3 0 208 10
O-5 Laurel Run at Rt. 635 6 ft. 4 in. normal 69 F 35 s 54 8 0 0 0 1 0 26 0 2 5 9 31 77 27 6 0 0 0 0 246 6
R-2 Hughes River at Rt. 644 25 ft. 24 in. high 51 F 20 s 0 0 0 0 0 0 3 201 0 3 5 11 32 26 0 1 0 0 0 0 282 12
R-3 Rush River at Rt. 211 and 522 15 ft. 10 in. normal 59 F 170 s 5 0 0 0 0 0 4 61 1 3 0 14 2 125 15 0 0 0 0 0 230 9
R-5 South Fork Thornton at confluence with North Fork 15 ft. 4 in. low 50 F 40 s 3 1 0 1 1 0 11 123 0 3 15 4 16 25 0 0 0 0 0 0 203 12
R-6 North Fork Thornton at Rt. 612 25 ft. 10 in. high 57 F 20 s 6 0 0 0 0 0 63 18 0 3 73 59 51 33 0 4 0 0 0 0 310 11
R-8 Piney River at Rt. 612 15 ft. 10 in. high 56 F 20 s 0 0 0 0 0 0 37 27 3 4 29 57 33 22 0 2 0 0 1 0 215 12
R-9 Covington River at Rt. 621 20 ft. 12 in. high 53 F 40 s 96 2 0 0 0 0 19 75 0 7 5 25 40 8 0 0 0 0 0 0 281 7
R-12 Battle Run at Rt. 729 10 ft. 6 in. normal 64 F 20 s 20 0 0 0 0 0 3 121 0 2 31 0 11 23 25 8 0 0 9 0 253 10
R-17 Jordan River at Rt. 637 40 ft. 10 in. high 64.5 F 30 s 6 1 0 0 0 0 1 81 0 6 0 12 2 26 22 0 0 6 46 0 205 6