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2016-05-19_PERMIT FILE - C1982056 (7)
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2016-05-19_PERMIT FILE - C1982056 (7)
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Last modified
8/24/2016 6:22:19 PM
Creation date
6/1/2016 11:46:29 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Permit File
Doc Date
5/19/2016
Section_Exhibit Name
Exhibit 16c 18 Right Shaft and 9 East Borehole Soil Information
Media Type
D
Archive
No
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Fish Creek Soil Investigation <br /> <br />Table 1. Selected Observed Soil Core Parameters <br />Soil Core <br /># Depth of Rooting <br />inches Depth to Mottles <br />inches Depth to Water <br />inches <br />1 23 na na <br />2 25 12 41 <br />3 8 na na <br />4 9 na na <br />5 48 na na <br />6 50 na na <br />7 54+ na na <br />8 40+ na na <br />9 47 70 105 <br />10 19 na na <br />I1 20 na na <br />12 20 na na <br />Maximum rooting depth at soil core #2 (Cumulic Cryaquoll) was observed into the <br />seasonal high water table. Soil mottling within the soil profile is a good indication of <br />the depth of the seasonal high water table that can fluctuate with the season and by <br />year. Enhanced vegetation growth and plant species adapted to mesic and riparian <br />sites was also evident adjacent to soil core #2. Unconsolidated stream-laid sediments <br />were observed at 25 inches and exhibited free water within these unconsolidated <br />gravels and coarse sands. Similar soil characteristics were observed in the small <br />drainage channel bisecting the ventilation pad area in Section 17 (Map 2). <br />• <br />The maximum rooting depth at soil core #9 (Menbar series) was observed to a depth of <br />47 inches with a significant decline in roots noted at shallower depths due to calcareous <br />root restricting horizons. Unconsolidated stream-laid sediments were observed below <br />105 inches and exhibited free water within these unconsolidated gravels and coarse <br />sands, however, no indicators of AVF soil characteristics were evident in this soil core <br />within the rooting zone. While this colluvial material may overlay water-bearing <br />unconsolidated alluvial strata, these colluvial materials are at a sufficient depth and <br />contain shallow, calcareous root restricting horizons that prevent any subirrigation <br />potential, Reduced vegetation growth and production at this sampling site were <br />evident from the plant species that are more adapted to semi-arid, non-subirrigated <br />sites. The field survey observed a distinct soil, vegetation, and topographic boundary <br />between the AVF and the upland portion of the study area containing the proposed <br />ventilation shaft facility access road. <br />Habitat Management, Inc. 3 01/06/04 <br />
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