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1 <br /> • <br /> Belt Collins Hawaii <br /> PROJECT: Waikoba Baptist Church JOB NO: 2016.33.2400 <br /> CLIENT: FHG Architects AIA,LLC DATE: 3-Nov-16 <br /> BELT , SUBJECT: Drainage Computations BY: tho <br /> ` FILE: M:\Waikoloa Baptist Church12016332400\05 Basis of Design\Reports\Drainage-for Plan ApprovaNDR-wbc for pa.xls)Q <br /> Table 2:Weighed runoff coefficient <br /> EXISTING/ CHECK(HIDE) <br /> BUILDING PAVEMENT DISTURBED LANDSCAPED Drain TOTAL AREA <br /> AREA AREA AREA AREA Area A WEIGHTED <br /> sq ft sq ft sq ft sq ft Sq ft acres C <br /> CONDITION C=1.00 C=0.9 C=0.32 C=0.25 <br /> 1 0.9 0.32 0.25 <br /> (1) (2) (3) (4) (5) (6) <br /> Existing 0 0 539,316 0 539,316 12.38 0.32 <br /> Proposed 39,198 132,160 264,490 103,468 _ 539,316 12.38 0.50 <br /> Legend: <br /> (1): area name(as shown on plans) <br /> (5): Total Area=sum of columns(1)to(4) <br /> (5): c= Weighted runoff coefficient <br /> NOTE: As the increase in rainfall runoff from prior improvements were addressed when the improvements were constructed,the prior <br /> improvement areas were considered to be existing area for both the existing and proposed conditions in the above table. <br /> Appendix B <br /> Page 2 of 2 <br />