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REcEnfE,) <br /> AN 112018 <br /> • DEPARTMENT OF THE ARMY OMSK* <br /> OF�C <br /> nodCORPS OF 9STDENVER REGULATORY OFFICE, 077 SOUTH WADSWORTH BOULEV DISTRICT M" & <br /> . LITTLETON, COLORADO 80128-69 <br /> �I . Iq 1J�1' <br /> RE: Section 404 of the Clean Water Act Initial Comments <br /> To whom it concerns: <br /> In accordance with Section 404 of the Clean Water Act,the Corps of Engineers regulates <br /> the discharge of dredged or fill material, either temporary or permanent,within waters of the <br /> United States (WOUS). WOUS may include ephemeral and/or perennial streams,wetlands, <br /> lakes,ponds, drainage ditches and irrigation ditches. This office should be notified by a <br /> proponent of the project for Department of the Army permits, changes in permit requirements or <br /> jurisdictional determinations pursuant to Section 404 of the Clean Water Act. <br /> If there is a discharge of fill material within WOUS, a Department of the Army Section <br /> 404 permit is required. A wetland delineation must be conducted using the methods outlined in <br /> the Corps of Engineers Wetlands Delineation Manual(Environmental Laboratory 1987) and <br /> Regional Supplement to the Corps of Engineers Wetland Delineation Manual: (using applicable <br /> Regional Supplement)to determine wetlands based on the presence of three wetland indicators: <br /> hydrophytic vegetation,hydric soils, and wetland hydrology. Wetland delineations must be <br /> conducted in the field by a qualified individual, and any aquatic resource boundaries must be <br /> identified accordingly. Once the aquatic resources have been identified, only this office can <br /> determine if they are WOUS. Please note that development of the upland areas, avoiding stream <br /> and wetland resources, does not require authorization from this office. <br /> Nationwide Permits (NWP) authorize common types of fill activities in WOUS that will <br /> result in a minimal adverse effect to the environment. Descriptions of the 54 types of nationwide <br /> permit activities and their general conditions can be found on our website: <br /> hq//www nwo usace gME.mil Missions/Re ug latoUProaram/Colorado.asyx. <br /> Some fill activities require notifying the Corps before starting work. Also, some types/sizes of <br /> work may require additional information or mitigation. <br /> Regional General Permits (RGP) authorize specific types of fill activities in WOUS that <br /> will result in a minimal adverse effect to the environment. Descriptions of the 4 types of regional <br /> general permit activities and their general conditions can be found on our website: <br /> http•//www nwo usace g=mil/Missions/Re atoUProgram/Colorado/RegionalGeneralPennits <br /> .aspx. These fill activities require notifying the Corps before starting work, and possibly other <br /> local or state agencies. Also, some types/sizes of work may require additional information or <br /> mitigation. Please note several of the RGP's are applicant and location specific. <br />