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<br />- "."" . ~ <br /> <br />- 5 - <br /> <br />~ <br /> <br />e) <br /> <br />8 6 Provides details on the types of technical Information (I.e. . Use the best locally/regionally/state/federally <br /> topa, hydrology, hydraulics, etc.) that are required in order approved hydrology <br /> for the information to qualify as approximate. . Use the best planimetric infonnation for the base <br /> map (streets, corporate limits, etc,) <br /> . Use approximate analyses and makes sure that <br /> flood lines conform to the best available <br /> topographic info. <br /> . Address the minimum drainage basin size for <br /> floodplains vs. local drainage problems <br /> . Address GIS and database fonnat and technical <br /> requirements <br /> . Ensures conformance with FEMA contractor <br /> Quidelines and specifications <br />9 N/A N/A It Is timely for the ewCB to create a rule regarding <br /> f1oodways. Staff has been working with the TAC and <br /> other Interested parties to better define what an <br /> aDDroDriate f100dwav rule is for Colorado. <br />10 7 Describes the types of impoundment facilities that are Minor revisions <br /> aoollcable for flood control benefits In floodolaln studies <br />11 8 Describes the standards for levees that are applicable for Minor revisions <br /> flood control benefits in floodolain studies <br />12 N/A N/A FEMA and CWCB are producing engineering studies <br /> for special flood hazards. Those special hazards may <br /> Include debris flows, alluvial fansllncreased <br /> hydrOlogy resulting from wildfire burn areas, ice <br /> jams and other special hazards. We should also <br /> address ongoing urbanization of watersheds and <br /> effects on flows. <br />13 N/A N/A Hydrologic determinations and increased runoff from <br /> development/urbanization should consider <br /> detention measures to mitigation the higher runoff <br /> characteristics. (Note: the manual will provide <br /> engineering procedures for this rule) <br />14 N/A N/A - 'Community development activity Is creating the <br /> need for official changes to floodplain information <br /> via FEMA .LOMC's. The CWCB needs a conditional <br /> approval process for the map changes, which may <br /> Include CWCB/UDFCD review or approval of LOMes <br /> (Note: the manual will provide a procedure for these <br /> reauests) , . ' <br />15 ,N/A N/A The existing rules only addresses levees and dams, <br /> and we feel that the revised rule should address <br /> other modem dav flood mitiaation measures as"well. <br />16 N/A N/A The rule should address stream and f1aadplaln <br /> restoration activities, agricultural structures and <br /> recreational facilities in floodplains <br /> (Note: Policies by the Corps, FEMA and ewCB will be <br /> incorDorated Inta this rule) . , <br />17 9 Describes the conditions and process by which floodplain Minor Revisions <br /> information may become designated and approved by the <br /> CWCB <br />IB 10 Describes the process by which changes to existing Minor Revisions <br /> floodolain desianations may take piace . <br />19 11 Describes the conditions under which a variance to the rules Expand the conditions for exempting certain <lgriculturai and <br /> may be granted by the CWCB Irrigation diversion activities <br /> (Note: The Corps' 404 permitting process exempts <br /> certain irrigation activities In streams)-. . <br /> <br />e\ <br /> <br />Flood Protection. Water Project Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br />