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I SC:md�'�I�I:IiI I I.o� � <br /> ti�orin 1)r:una��c Rc��nrt —_------- <br /> I 2 Existing Site Conditions <br /> The site under current conditions has been cleared and pre-graded to provide a <br /> Ituture building pad with access to the existing access driveway along the western <br /> edge of the site. The east and portions of ihe north edge nf the site are <br /> Ivegetated slopes, sloping at approximately 2.5:1 down to existing improvements. <br /> The south edge of the site is a vegetated slope, sloping at approximately 1.5:1 <br /> Idown to existing improvements. The vegetation contains a mixture uf grasses <br /> and weeds with scattered Scotch Broom and saplings. <br /> IThere is currently a vegetated swale and a 78-inch pipe which provides water <br /> Iquality treatment and detention for a portion of the exiting access driveway <br /> located along the western boundary of the site. <br /> IExisting site runoff ilows in a north-easterly direction to a swale located at the top <br /> I of the slope. The swale directs the runoff to an onsite sediment pond. The <br /> sediment pond discharges to the existing tight line system along the south side of <br /> IMerrill Creek Parkway. <br /> � 3 Developed Site Conditions <br /> � In the developed condition, the siie will contain a commercial building and <br /> associated parking area. The existing vegetated swale will be filled. Water <br /> quality treatment for the existing access driveway as well as onsite paved areas <br /> � will be provided by an underground tank and vegetated treatment cell. Detention <br /> for the entry driveway will rem�m in the exisling 78-inch pipe. Detention for the <br /> I new paved areas will be provided by the existing regional detention facility <br /> � located on the adjacent property to the east. <br /> � Storm runoff from the building roo(lop will be collected and conveyed in a <br /> separate system than ihat oi the parking lot. This runoff is considered to i <br /> "clean" and does not require water quality treatment. Therefore, it will bypass the <br /> onsite water quality facility and empty into the existing 12-inch storm drain line in <br /> � Merrill Creek Parkway. From lhere lhe flow is conveyed to the regional detention <br /> facility located on the adjacent property to the east. <br /> ! - -------- <br /> I�chiu:uc _'i. 211Ud .. . . . � . . �. . � I'a��c � <br /> 1 �"1'RI:\D <br />