Laserfiche WebLink
<br />adopt and enforce floodplain management regulations, at their own discretion, that are more restrictive <br />than those presented in the statewide manual and those required by FEMA. <br /> <br />. <br /> <br />OPERATING PRINCIPLE # 8 - CRITICAL FACILITIES <br />The CWCB recommends that communities consider the SOO-year floodplain as criteria for development <br />of critical facilities. <br /> <br />OPERATING PRINCIPLE #9 - FLOOD CONVEYANCE IN IRRIGATION DITCHES & <br />CANALS <br />The CWCB recommends that irrigation facilities (i.e. ditches and canals) not be used as storm water or <br />flood conveyance facilities, unless specifically approved and designated by local governing jurisdictions <br />and acknowledged by the irrigation facility owners. The flood conveyance capacity of irrigation facilities <br />should be acknowledged only by agreement between the facility owners and local governing jurisdictions. <br />The CWCB may designate and approve IOO-year floodplain information for irrigation facilities if the <br />above recommendations are met. <br /> <br />OPERATING PRINCIPLE #10 - STORMW ATER RUNOFF DETENTION <br />The CWCB recommends that local government entities require adequate detention facilities be <br />appropriately designed and constructed by development proponents to mitigate the increase in flows <br />caused by urbanization and increased impervious surfaces. The flood attenuation benefits of publicly <br />owned, operated, and maintained detention facilities or publicly controlled privately owned detention <br />facilities should be fully recognized for the purpose of determining flood hazard areas downstream of the <br />detention facilities. The attenuation benefits of privately owned detention facilities that are not controlled <br />by public agencies should not be considered in floodplain analyses. <br /> <br />OPERATING PRINCIPLE #11 - WATER RIGHTS <br />The CWCB recognizes the importance and existence of conditional and adjudicated water rights in <br />Colorado. All new drainage facilities should be planned and constructed with proper recognition given to <br />the existing water rights and applicable water laws. Drainage systems have the potential to interfere with <br />existing water rights; therefore, the value and use of water rights should be addressed during planning and <br />implementation of drainage facilities where applicable. <br /> <br />. <br /> <br />OPERATING PRINCIPLE #12 - STORM RUNOFF WATER OUALITY <br />The CWCB encourages design of drainage facilities and other measures that enhance the quality of storm <br />runoff. Planning and design of drainage facilities should be prepared to minimize adverse impacts and/or <br />improve water quality of the resulting storm runoff discharges. Drainage facilities may be designed to <br />function as both storm runoff conveyance and water quality enhancement facilities. This <br />recommendation in no way supersedes requirements related to the EPA's national pollutant discharge <br />elimination system (NPDES) or other water quality standards. <br /> <br />l:\Se(t1on Folders\SECA\Rules and Regulations Revision <br />