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<br />9. U.S. Department of Agriculture, Soil Conservation Service, Technical
<br />Release No. 20, Computer Program, Proiect Formulationl Hydroloqy,
<br />User's Manual, R.E. Maclay, Washington, D.C., 1965
<br />
<br />10. U.S. Department of Environmental Resources, Environmental Protection
<br />Agency, Storm Water Management Model, revised by the u.s. Army Corps
<br />of Engineers, Missouri River Division, 1973
<br />
<br />11. U.S. Department of the Army, C?rps of Engineers, Hydrologic
<br />Engineering Center, HEC-2 Water-Surface Profiles, Generalized
<br />Computer Program, 723-X6-L202A, Davis, California, October 1973
<br />
<br />12. M&I Consulting Engineers, Topographic Maps, Scale 1:2,400, Contour
<br />Interval 2 feet, Wellington, Colorado, September 1977
<br />
<br />13. U.S. Department of Agriculture, Soil Conservation Service, Flood
<br />Plain Information, Boxelder Creek Watershed, Scale 1:2,400, Contour
<br />Interval 2 feet, May 1970
<br />
<br />14. The Sear-Brown Group, Town of Wellington, Floodpla1..n Depth Map,
<br />Scale 1:2,400, Contour Interval 2 feet, April 16, 1997
<br />
<br />15. Federal Emergency Management Agency, Flood Insurance Study, Larimer
<br />County, Colorado (Unincorporated Areas), Washington, D.C.
<br />
<br />10.0 REVISION DESCRIPTIONS
<br />
<br />This section has been added to provide information regarding significant
<br />revisions made since the original Flood Insurance Study was printed.
<br />Future revisions may be made that do not result in the republishing of the
<br />Flood Insurance Study report. To assure that any user is aware of all
<br />revisions, it is advisable to contact the community repository of flood-
<br />hazard data located at the Town of Wellington Town Hall, 3735 Cleveland
<br />Street, Wellington, Colorado.
<br />
<br />10.1 First Revision
<br />
<br />This study was revised on October 20, 1998, to show modifications to
<br />flood hazards along Coal Creek along its entire length within the
<br />Town of Wellington.
<br />
<br />The hydrologic and hydraulic analyses for the restudy were performed
<br />through separate, but related, efforts by Simons, Li, & Associates,
<br />Inc. (SLA); the Natural Resources Conservation Service (NRCS)
<br />(formerly the SCS); the eweB; and The Sear-Brown Group. The data
<br />used in this restudy were originally prepared for purposes other
<br />than the NFIP. The Federal Emergency Management Agency did not
<br />perform a technical review of the data, but does accept it as valid
<br />for purposes of this restudy and the NFIP.
<br />
<br />SLA prepared a report entitled "Cooper Slough, Boxelder Creek,
<br />Master Drainageway Planning Study" (Reference 2). The data in this
<br />report were reviewed and modified by the NRCS in cooperation with
<br />the cweB to produce the "Flood Plain Management Study, Boxelder
<br />Creek in the Vicinity of Town of Wellington, CO" (Reference 1) in
<br />september 1983. The floodplain mapping from this NRCS study was
<br />refined by The Sear-Brown Group in 1997 for the Town of Wellington
<br />(Reference 14).
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