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~ Ill llllllllllllllll F~¢~ T~- : - <br />United States Department of the Interior a~ ~' ` <br />~~ <br />FISH .4ND WILDLIFE SERVICE <br />NATIONAL ECOLOGY RESEARCH CENTER -~~^ <br />4512 McMurry Avenue <br />Fort Collins, Colorado 80525-3400 <br />In Reply Refer To: <br />FWS/Region 8/NERC April 10, 1991 File: W123 <br />Robert Baldwin, President <br />West Arapaho Soil Conservation District !~ <br />730 Sirnms Street, Suite 416 <br />Golden, CO 80401 <br />Dear Sirs: <br />This letter serves as a record of expenditures and progress report of our <br />work at the Coal Creek site through March 31, 1991. <br />Prooress Report: We have continued monitoring of the fifteen wells, with <br />depths-~to-water being taken every 2-4 weeks. Attached are schematics showing <br />the groundwater profiles for our four cross-sections. <br />We have also established a crest-stagge gage within the study site. We <br />attached the gage onto the bridge (#30-22.8) where Quincy ( Airport) road <br />intersects with Coal Creek. This type of gage allows one to determine what <br />the highest flow on the stream was since the last measurement was observed. <br />It is our hope to have four such gages installed by May 1. Each crest-stage. <br />gage will be installed with a staff-gage, which allow one to read the level <br />of flow that the stream is at while the measurement is being taken. <br />Recently, we acquired aerial photos of the study site. Presently, we have <br />photos from 1986, at several scales. We have on order a series of photos <br />from the USDA-ABCs Aerial Photography Field Office that will cover the period <br />between 1950-1985. We also have an order in with the National Archives, <br />Washington, D.C.> to provide us with a set of photos for 1937. Our interest <br />in acquiring these photos is, of course, to better understand the site's <br />history, so as to better understand the site's current conditions. <br />Plans: Beyond the continued monitoring of the wells and the gages, we plan <br />to conduct a site-survey within the next quarter. Our goals are several: 1) <br />7o survey in the locations of some 800 individual trees that fall within our <br />four transects; 2) To conduct atraverse-survey, so as to connect the four <br />transects and to create an accurate large-scale topographic map of the site. <br />Expenditures: <br />Chargeable to West Arapaho Soil Conservation District: <br />i) Crest-stage and Staff gages 5237 <br />ii) Travel 5345 <br />iii) Field Tech Salary 5315 <br />Total $897.00 <br />