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~J <br />CONDITIONAL LETTER OF MAP REVISION (CLOMR) <br />FOR <br />ST. VRAIN LAKES <br />Page 13 <br />Information has been provided to establish a 100-year water surface elevation in <br />the vicinity of the proposed development. The limits of this study extend beyond <br />the limits of proposed construction to correctly model the downstream boundary <br />condition of the St. Vrain River. <br />• <br />XIII. REFERENCES <br />1. Flood Insurance Study (FIS), City of Longmont, Boulder County, Colorado <br />unincorporated areas, revised September 18, 1987, FEMA Community <br />Number 080027. <br />2. Conditional Letter of Map Revision for Siegrist River Dance, Tuttle <br />Applegate Inc, December 1999. <br />3. Urban Storm Drainage Criteria Manual, UDFCD, June 2001. <br />4. Soil Survey of Weld County, Colorado, US Department of Agriculture Soil <br />Conservation Service, September 1980. <br />5. St. Vrain River and Boulder and Idaho Creeks Del Camino Area Study with <br />HEC2 Model Vrain1.dat, Army Corps of Engineers, 1977. <br />6. Wetland Delineation; St. Vrain Ponds Development Project, ERO <br />Resources Corporation, September 3, 2004. <br />7. Flood Insurance Rate Map (FIRM), Weld County, Colorado, Community- <br />Panel Number 080266 0855C; revised September 28, 1982. <br />8. Flood Insurance Rate Map (FIRM), Weld County, Colorado, Community- <br />Panel Number 080266 0850C; revised September 28, 1982. <br />9. Floodplain Information and Flood Control Plan for St. Vrain Creek at <br />Longmont, Colorado. Water Resources Consultants, Inc., April 1981. <br />10. HEC-RAS Hydraulic Reference Manual Version 3.1, Hydraulic Engineering <br />Center US Army Corps of Engineers, November 2002. <br />11. Handbook of Hydraulics, Seventh Edition, Ernest F. Brater, Horace W. King, <br />James E. Lindell, C.Y. Wei, 1996 <br />l J <br />