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2008-12-11_PERMIT FILE - C1980007A (36)
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2008-12-11_PERMIT FILE - C1980007A (36)
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Last modified
8/24/2016 3:38:50 PM
Creation date
3/16/2009 3:42:04 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1980007A
IBM Index Class Name
Permit File
Doc Date
12/11/2008
Doc Name
Small Area Exemption Demonstrations
Section_Exhibit Name
Exhibit 66 SAE
Media Type
D
Archive
Yes
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<br />Vegetative litter (prior years growth, dead wood, and other biologic organic material) <br />comprised an average 50.00 percent ground cover within the UDWP. Bare soil <br />comprised 6.00 percent of the cover encountered, and rock was encountered 0.50 <br />percent of the time. <br />Topsoil Pile <br />The Topsoil Pile at the Lone Pine Gulch Surface Facilities Area is located immediately <br />east of the UDWP and comprises approximately 0.5 acre of stockpiled topsoil from the <br />development of the Lone Pine Gulch facilities. Based on mapping from the soil survey <br />(SCS, 1981) the stockpiled topsoil is Fughes loam. The pile was revegetated in 1995, <br />with the approved permanent revegetation seed mix and has been fenced to prevent <br />unauthorized grazing by domesticated livestock. The Topsoil Pile was constructed on a <br />moderate hillslope and exhibits sheet flow runoff to the north. <br />Three lifeforms were documented during the sampling of the Topsoil Pile. These <br />included graminoids, forbs, and woody plants. Seventeen plant species were identified <br />during cover sampling at this location. Total vegetation cover of the Topsoil Pile was <br />60.67 percent, highest of the three areas sampled at the Lone Pine Gulch Surface <br />Facilities Area. Based on cover sampling, graminoids represented 49.33 percent mean <br />cover, forbs accounted for 9.33 percent mean cover, and three species of woody plants <br />were represented, contributing 2.00 percent cover overall. <br />The dominant vascular plant species of the Topsoil Pile was Bromus inermis. Bromus <br />inermis accounted for 14.67 percent of the mean cover. Three sub-dominant species <br />provided significant cover. These species were all graminoid and included; Poa <br />pratensis with 11.33 percent cover, Bromus tectorum contributing 10.00 percent cover, <br />and- Agropj?oI1`trachycaulum, which cohffibuted 9.33 percent mean cover. A,ropyzon <br />smithii (3.33% cover), Achillea lanulosa (2.67%), Polygonum douglasii (2.00%), and <br />Lactuca serriola (prickly lettuce) (1.33%) all contributed greater than one percent total <br />cover. The three woody plants encountered were all native species, invading from the <br />surrounding undisturbed oakbrush vegetation community. <br />Vegetative litter (prior years growth, dead wood, and other biologic organic material) <br />comprised an average 33.33 percent ground cover. Bare soil comprised 6.00 percent of <br />the cover encountered, and no rock was encountered. <br />Staging Area <br /> <br />The Staging Area at the Lone Pine Gulch Surface Facilities Area is located immediately <br />east of the fan. The area sampled is a steep north-facing slope approximately 0.6 acres <br />in extent which has been revegetated. The slope was revegetated in 1995, with the <br />approved revegetation seed mix. The substrate in this area is significantly more rocky <br />than the other areas sampled, not unexpected as the surface material is subsoil. <br />-4-
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