2014-09-23_REVISION - M1978078

• Permit No: M1978078
• IBM Index Class Name: Revision
• Doc Date: 9/23/2014
• Doc Name: Response
• From: COE
• To: DRMS
• Type & Sequence: CN1
• Email Name: AME
• Media Type: D
• Archive: No

-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:NNW
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/ ool complexes. Explain:
Tributary geometry:
Tributary gradient(approximate average slope): %
(c) Flow:
Tributary provides for:
Estimate average number of flow events in review area/year: .
Describe flow regime:
Other information on duration and volume:
Surface flow is: . Characteristics:
Subsurface flow: 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 ❑the presence of litter and debris
❑changes in the character of soil ❑destruction of terrestrial vegetation
❑shelving ❑the presence of wrack line
❑vegetation matted down,bent,or absent ❑sediment sorting
❑leaf litter disturbed or washed away ❑scour
❑sediment deposition ❑multiple observed or predicted flow events
❑water staining ❑abrupt change in plant community
❑other(list):
❑Discontinuous OHWM Explain:
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.
7Ibid.