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. <br /> Bioretention Area' Maintenance Plan for <br /> Courtyard by Marriott <br /> Date: <br /> °� � ��'" � '���� � ''��" ���� Project Address and Cross Streets <br /> ., , <br /> ' ` � �a <br /> o °-°��� � �°�� ��� �,��� � Bair Island Road at One Marina Wav <br /> �,�„, ,������ ���� �� � �� Assessor's Parcel No.: 052-531-130 <br /> � � � a ' �; <br /> � ' � � � �� � � � � �' `� ° � ' Pro ert Owner: Redwood City Hotels, LLC <br /> ������s.���� � ���� � , e� � � �� � �� P Y <br /> �� � �� �� ����' <br /> � ' � � � , ���„ � k����. <br /> � � � a, �. w ���; � � � �� � �n Phone No.: 864-596-8930 <br /> ��:;�� � , � . � .�m, <br /> ce�, <br /> ��- � , �� ��.� �v Designated Contact: <br /> � � � � ,� ��q � �,���;,�� <br /> e� _ �. .._ , � `�.� ����s �..,x �.��e_ Phone No. <br /> Bioretention areas function as soil and planf- <br /> based filtrafion devices that remove pollutants Mailing Address: 100 Dunbar Street, Suite 402 <br /> through a variety of physical,biological,and S artanburq SC 29303 <br /> chemica!freatment processes. These facilities � <br /> normaUy consist of a grass buifer strip,sand bed, <br /> ponding area,organic layer or mulch fayer, <br /> planting soil, and plants. <br /> The property contains 8 bioretention areas (7 new and 1 existing, to remain) located as <br /> described below and as shown in the attached site plan2. <br /> Bioretention Areas are located as follows: <br /> . 1-near SW building corner& along S building wall <br /> . 2-along S building wall <br /> . 3-along S building wall <br /> • 4-near S driveway approach onto One Marina Way <br /> • "S"-along One Marina Way frontage <br /> . "M"-along Une Marina Way frontage <br /> • "S"-along One Marina Way frontage <br /> . "N"-along One Marina Way frontage <br /> . "EX"-along One Marina Way frontage <br /> I. Routine Maintenance Activities <br /> The principal maintenance objective is to prevent sediment buildup and clogging, which <br /> reduces pollutant removal efficiency and may lead to bioretention area failure. Routine <br /> maintenance activities, and the frequency at which they will be conducted, are shown in <br /> Table 1. <br /> Table 1 <br /> Routine Maintenance Activities for Bioretention Areas <br /> Na, Maintenance Task Frequency of Task <br /> 1 Remove obstructions,debris and trash from bioretention Monthly,or as needed after storm <br /> area and dispose of properly. events <br /> 2 Inspect bioretention area to ensure that it drains between Monthly,or as needed after storm <br /> storms and within five days after rainfall. events <br /> 1 Bioretention areas include linear treatment measures designed to filter water through biotreatment soils.A bioretention <br /> area that has no waterproof liner beneath it and has a raised underdrain in the underlying rock layer to promote <br /> infiltration,as shown in Section 6.1 of the C.3 Technical Guidance,may also be called a"bioinfiltration area". <br /> '-Attached site plan must match tl�e site plan exhibit to Maintenance Agreeinent. <br /> , Page 1 Revised 11130/11 <br /> � ,�o.z�:�P.��-ansEaoamosrco?z�.x«�a.;�samrlrcno���ama,ise.s��n�rc-e�ma�m,eie��.i.a« <br /> ATTY/AGR.600 Bair Island Road/Courtyard Marriot <br />