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stormwater runo£f from pavement areas 10,000 square faet or <br /> larqer. j�!� <br /> y�q�tat�d eralae• <br /> The aotual contours for the swale and how they relate to the <br /> aurrounding topography should be shown. <br /> City etandards require the entire associated side slope of <br /> the swale, from the bottom of the swale to the top of the <br /> adjacent bank, to have a maximum slope of 3: 1 unlesa <br /> rockeries or retaininq walls are used. Rockeries or <br /> retaining walls may be used to provida the vertical drop <br /> necessary to meet the swale side slope requirements, but the <br /> rockery or retaining wall may nut be used to provide the <br /> required 0. 5, vertical feet of freeboard. <br /> � �� � . vF�'J' /��/.-�/� �- <br /> �/_ %- ii-i/ i�:-- �, , .�� �,/. � <br /> ���./,//'i� . � ;�/' /% ��//_, �� �:,i <br /> R�tDond= <br /> � ; 'City standards requfre an effective length to width ratio in <br /> ��il� • wetponds of 3: 1. In addition, for effective sediment ,/;,�c p - <br /> ��� /��. , ; <br /> removal, water should travel the length of the open water , � ' i ; l `' <br /> � cell. The berm configuration shown on the attached copy of I�� r, <br /> �' � ��' � the pond would meet these requirements. he' <br /> A plantinq schedule for the treatment area of the wetpond is <br /> � ,i�// required for approval by the City and must be shown on the � <br /> ;, �/.��� civil plans, either on the storm drainage plans or on a <br /> detail sheet (Public Works authority for future inspections <br /> of stormwater facilities depende on these details beinq <br /> provided on the civfl plans) . The plantinq scY.eiule should <br /> -also be shown on any landscape plans. <br /> The planting schedule should call out the type of vegetation <br /> to be planted, the density of the plantings, and the total i <br /> number of plants needed. Plants suited to the depth of <br /> water in the treatment areas should be used and the required <br /> veqetation should be planted in groups, rather than in a <br /> completely random pattern. Hardstem bulrush, yellow iris, <br /> and/or cattails are appropriate in areas of the pond with 1- <br /> 2 feet of water, with small fruited bulrush, spike rush <br /> and/or soft rush planted around the wetland treatment cell <br /> perimeter. Required density of plantinqs is a minimum of <br /> one per 2.25 square feet (1.5' O.C. ) . <br /> The pond detail needs to clearly show the area of the pond � <br /> to be planted and a note should reference the planting <br /> schedule. <br /> City standards do not require an oil/water separator and ✓' <br /> qrit removal vault upstream of the wetpond. However, if the <br /> applicant cho:ses to provide such a system upstream, an <br />