HYDRO27495

• Permit No: C1982056
• IBM Index Class Name: Hydrology
• Doc Date: 9/25/1986
• Doc Name: MATERIAL DAMAGE STANDARD FOR IRRIGATION WATER PN C-82-056
• From: TWENTYMILE COAL CO
• To: MLRD
• Permit Index Doc Type: CORRESPONDENCE
• Media Type: D
• Archive: No

TABLE 2
TROUT CREEK ALLUVIAL VALLEY FLOOR
VEGETATIVE COVER OF IRRIGATED PASTURES
SPECIES Common Name Cover Com osition
(percent) percent
GRASSES
Agropyron intermedium intermediate wheatgrass .05 .06
Agropyron smithii western wheatgrass 1.07 1.28
Agropyron trachycaulum slender wheatgrass 1.38 1.65
Agropyron (species) wheatgrass .16 .19
Agrostis (species) redtop 3.20 3.83
Bromus inermis smooth brome 13.05 15.63
Dactylis glomerata orchard grass .13 .16
Festuca arundinaceae tall fescue .65 .78
Festuca idahoensis Idaho fescue .02 .02
Festuca pratensis meadow fescue .28 .34
Festuca (species) fescue .05 .06
Hordeum brachyantherum meadow barley .08 .10
Hordeum jubatum foxtail barley .06 .07
Phalaris arundinaceae reed canarygrass .07 .08
Phleum pratense timothy 6.07 7.27
Poa pratensis Kentucky bluegrass 25.86 30.97
Poa sandbergii Sandberg bluegrass 1.10 1.32
Sitanion hystrix bottlebrush squirreltail .O1 .O1
Stipa cloumbiana Columbian needlegrass .02 .02
SUBTOTAL 53.31 63.84
GRASSLIKE
Carex nebraskensis Nebraska sedge 1.71 2.05
Carex (species) sedge 6.75 8.08
Juncus (species) rush .40 .48
Scirpus (species) bullrush .30 .36
SUBTOTAL 9.16 10.97
FORBS
Achillea millefolium western yarrow .36 .43
Astragalus (species) milkvetch .04 .05
Artemesia ludoviciana Louisana sagewort .04 .05
Barbarea vulgaris wintercress .09 .11
Capsella bursa-pastoris shepards purse .10 .12
Cirsium arvense Canadian thistle 2.48 2.97
Cirsium canescens thistle .O1 .O1
Cirsium drummondii elk thistle .35 .42
Collomia linearis slenderleaf collomia .02 .02
Cynoglossum officinale houndstongue .12 .14
Descurainia pinnata tansy mustard .04 .05
Epilobium paniculatum autumn willowweed .06 .07
Erigeron (species) fleabane .08 .10
Hippochaete laevigata scouring - rush .17 .20