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WSP09723
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Last modified
1/26/2010 2:55:26 PM
Creation date
10/12/2006 3:52:12 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8271.300
Description
Colorado River Basin Salinity Control Program - General Information and Publications-Reports
Basin
Colorado Mainstem
Water Division
5
Date
1/1/1993
Title
Greater Sagers Wash Watershed Management Plan
Water Supply Pro - Doc Type
Report/Study
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<br />o <br />o <br />~ <br />~l <br /> <br />2.0) These formations make up 13 percent of the watershed area but are responsible for 45 <br />percent of the potential salt yield. Chipeta soils on 25-50 percent slopes make up 5 percent of <br />the watershed area and are responsible for 26 percent of the potential salt yield. These Chipeta <br />soils have very low resilience and are undergoing severe accelerated erosion. Because of the <br />very low resilience of these soils they are grouped with formations undergoing geologic erosion. <br />Together the Badlands, rock outcrops, and Chipeta soils (25-50% slopes) make up 18 <br />percent of the watershed area and are responsible for 71 percent of the potential salt yield. <br />Due to the nature of these formations there is no opportunity for effective erosion control at this <br />time and they are not considered in this plan for salinity control treatments. Accelerated erosion <br />is erosion occurring much more rapidly than normal, natural, or geologic erosion, primarily as <br />a result of the influence of the activities of man, other animals, or natural catastrophies that <br />expose the bare surface of the soils. Major land uses that may be influencing accelerated erosion <br />in the Greater Sagers Wash Watershed are grazing, off-road vehicle (ORY) use, mineral-energy <br />exploration and extraction [ELM, 1978] and road building. Areas of the watershed undergoing <br />accelerated erosion make up 64 percent of the watershed area and are responsible for 29 percent <br />of the potential salt yield. Only these areas undergoing accelerated erosion that have some <br />opportunity for erosion, sedimentation and salt control will be analyzed and considered for <br />potential salinity control treatments in this plan. The remaining 18 percent of the watershed area <br />is under Wilderness Study Area designation and has either been considered previously with the <br />"rock outcrops" or is considered to be an insignificant source for potential salt yield. As a result <br />of the Wilderness Study Area designation and the lack of need for salinity control treatments this <br />area will not be considered in this plan. <br /> <br />The Sagers Wash Watershed Management Plan will describe the Greater Sagers Wash <br />Watershed, identify potential sources of salt, identify suspected salt-producing areas undergoing <br />accelerated erosion with the greatest potential for salt management, identify possible treatments <br />for controlling sediment and salt production from these areas, evaluate the economic feasibility <br />of each treatment, propose various alternative combinations of treatments to be implemented as <br />funding becomes available, and determine a preferred alternative. Strategies for project <br />monitoring, maintenance, and evaluation of project success will be determined. <br /> <br />3 <br />
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