Agenda - 04-03-2018 8-e - Major Subdivision Preliminary Plat Application – Morgan Ridge Subdivision

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71 -3- Tributary is: ❑ Natural ❑ Artificial (man- made). Explain: ❑ Manipulated (man - altered). Explain: Tributary properties with respect to top of bank (estimate): Average width: feet Average depth: feet Average side slopes: Mrrlt_Iit. Primary tributary substrate composition (check all that apply): ❑ Silts ❑ Sands ❑ Concrete ❑ Cobbles ❑ Gravel ❑ Muck ❑ Bedrock ❑ Vegetation. Type /% cover: ❑ Other. Explain: Tributary condition/stability [e.g., highly eroding, sloughing banks]. Explain: Presence of run/riffle /pool complexes. Explain: Tributary geometry: Pick List Tributary gradient (approximate average slope): % (c) Flow: Tributary provides for: Pick List Estimate average number of flow events in review area/year:4lit Describe flow regime: Other information on duration and volume: Surface flow is: Pick List. Characteristics: Subsurface flow: Pick List. Explain findings: ❑ Dye (or other) test performed: Tributary has (check all that apply): ❑ Bed and banks ❑ OHWM6 (check all indicators that apply): ❑ clear, natural line impressed on the bank ❑ changes in the character of soil ❑ shelving ❑ vegetation matted down, bent, or absent ❑ leaf litter disturbed or washed away ❑ sediment deposition ❑ water staining ❑ other (list): ❑ Discontinuous OHWM 7 Explain: ❑ the presence of litter and debris ❑ destruction of terrestrial vegetation ❑ the presence of wrack line ❑ sediment sorting ❑ scour ❑ multiple observed or predicted flow events ❑ abrupt change in plant community If factors other than the OHWM were used to determine lateral extent of CWA jurisdiction (check all that apply): ❑ High Tide Line indicated by: ❑ Mean High Water Mark indicated by: ❑ oil or scum line along shore objects ❑ survey to available datum; ❑ fine shell or debris deposits (foreshore) ❑ physical markings; ❑ physical markings /characteristics ❑ vegetation lines /changes in vegetation types. ❑ tidal gauges ❑ other (list): (iii) Chemical Characteristics: Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.). Explain: Identify specific pollutants, if known: (iv) Biological Characteristics. Channel supports (check all that apply): ❑ Riparian corridor. Characteristics (type, average width): ❑ Wetland fringe. Characteristics: ❑ Habitat for: ❑ Federally Listed species. Explain findings: 6A natural or man -made discontinuity in the OHWM does not necessarily sever jurisdiction (e.g., where the stream temporarily flows underground, or where the OHWM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break. 'Ibid.