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6/11/92 Perteet Engineering Inc page 1 <br />Frontier Bank - Everett Mall & 4th Ave <br />Prepared for Dykeman Architects <br />-- -------------------------------------------------- <br />------------- <br />BASIN SUMMARY <br />� <br />� <br />� BASIN ID: D10 <br />_ SCS METHODOLOGY <br />TOTAL AREA.......: <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTEftVAL....: <br />TIME OF CONC.....: <br />ABSTRACTION COEFF: <br />NAME: DEV. lOYR ENTIRE PARCEL <br />4.08 Acres <br />TY rn i.1 <br />2.20 in�hes <br />10.00 min <br />?0.00 min <br />0.20 <br />PEAK RATE: 1.81 cfs VOL: 0.60 <br />BASIN ID: D100 <br />SCS METHODOLOGY <br />TOTAL AREA.......: <br />RAINFALL TYPE....: <br />PRECIPITATION....: <br />TIME INTERVAL....: <br />TIME OF CONC.....: <br />ABSTRACTION COEFF: <br />NAME: DF.V <br />4.08 �4cres <br />TYPElA <br />3.00 inches <br />10.00 min <br />10.00 min <br />0.20 <br />BASEFLOWS: 0.00 cfs <br />PERVIOUS AREA <br />AREA..: 0.74 Acres <br />CN..... 86.00 <br />IMPERVIOUS AREA <br />AREA..: 3.34 Acres <br />CN.. 98.00 <br />Ac-ft TIME: 480 min <br />100YR ENTIRE PAACEL <br />PEAK RATE: 2.60 cYs VOL: 0.86 <br />BASEFLOWS: 0.00 cYs <br />PERVIOUS AREA <br />AREA..: 0.74 Acres <br />CN.. .. 86.00 <br />IMPERVIOUS AREA <br />AREA..: 3.34 ticres <br />CN.. .. 98.00 <br />Ac-ft TIME: 480 min <br />, ..._,--,...._....__. � <br />BASIN ID: D2 NAME: �EV/ 2YR �EN�I�RE-�ARCEL,� <br />SCS liETHODOLOGY <br />TOTAL AREA.......: 4.08 Acres <br />_ RAINFALL TYPE....: TYPElA <br />PftECIPITATION....: 1.80 inches <br />- TIME INTERVAL....: 10.00 min <br />TIME OF CONC.....: 10.00 min <br />� ABSTRACTION COEFF: 0.20 <br />___ _�` <br />� PEAK RATE: 1.41 cfs VOL: <br />�-- ��', <br />� �� ��,,_„�- <br />0.46 <br />BASEFLOWS: 0.00 cPs <br />PERVIOUS AREA <br />AREA..: 0.74 Acres <br />CN.. .. $6.00 <br />IMPERVIOUS AREA <br />AREA..: 3.34 Acres <br />CN... . 98.00 <br />Ac-ft TIME: 480 min <br />�. <br />�;�.[ C�r, n i �,��:'..J <br />� <br />