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REV92974
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REV92974
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Entry Properties
Last modified
8/25/2016 3:14:20 AM
Creation date
11/21/2007 11:26:07 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Revision
Doc Name
DECISION RECORD RATIONALE COAL LEASE APPLICAITON COC54558 ENVIRONMENTAL ANALYSIS U-93-24
Type & Sequence
PR5
Media Type
D
Archive
No
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wetherill Milkvetch (AatragaZua wetherlll~i) Category-2 <br />Columbian Sharpteiled Crouse (Tympenuchua phasienellua) Category-2 <br />Aoundtail chub (Olle ro6uata) Category-2 <br />Category 1 and 2 species are candidates for listing as <br />threatened or endangered under the Endangered Species Act; <br />information is currently not sufficient to support listing. <br />Proposed species are those which have been formally proposed <br />N. <br />to be listed as threat@ned or <br />Species Act. Proposed specie <br />protection as listed species. <br />endangered under the Endangered <br />s are afforded the same <br />Cultural Resources <br />inventories conducted for <br />sites were found. There <br />additional drill sites in <br />I. <br />There have been two cultural resource <br />exploration drill holes in 1992. No <br />will be another survey conducted for. <br />1993. <br />Water Resources <br />Surface Water <br />The tract is located within the North Fork of the Gunnison River <br />(North Fork) Drainage Basin. The area, located a few miles south <br />of the North Fork mainstem is a topographic high, averaging 7600 <br />feet above MSL, on the northern flanks of Jumbo Mountain, and is <br />drained by several first and second order intermittent channels. <br />These channels enter the North Fork approximately 5 miles <br />upstream (east) of the town of Paonia, Co. The flow of the North <br />Fork varies seasonally, with high flows occurring during spring <br />from snowmelt. After snowmelt, flows begin to recede, reaching <br />their low during winter. The 100-year flood event produces a peak <br />flow rate of about 7,920 cubic Peet per second. <br />Water quality data (inorganic constituents and suspended sediment <br />concentrations) for the North Fork indicates that. generally, <br />water quality is good. The water is an alkaline, soft, calcium- <br />bicarbonate-sulfate type with total dissolved solids <br />concentration.averaging around 100 mg/1. The water is cold, with <br />winter temperatures near freezing and summer temperatures in the <br />18-20 degree C range. Suspended solids concentration averages <br />near 50 mq/1 with maximum concentrations occurring during <br />snowmelt, in the range of 200-250 mq/1. Both dissolved metals <br />and nutrient concentrations are generally low throughout the <br />year. <br />Surface water flow over the tract is in response to snowmelt and <br />summer precipitation events. There is one known developed water <br />source (Jumbo Mountain Spring ~2) on the tract (BLM surface) and <br />three others (Jumbo Mountain Springs ~ 1, 3,b 5) within a mile of <br />the tract boundary (see Map 4) on BLM surface. The primary use of <br />these water sources fs livestock and wildlife. The BLM has <br />reserved water rights on these water sources, adjudicated by the <br />State of Colorado, with an appropriation date of April 17, 1926. <br />Page 10 <br />
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