1010 SE EVERETT MALL WAY BASE FILE 2018-01-02 MF Import

__.:.. . - -- - __ _ ,._ _ _ ... __ _.___ -- --- : _ __^.- -_ , _ ____ To Fi1e • �'Ii�YL'li �l{" '�� FROM Clair OZivers & Linda Burgess � .r'�- DATE November 6� 1979 ` 1 !'�� . 1 '♦{� t.. SUBJEI:T Sewer Capita2 Improvement Charges qTY OF EVERETT, EV[RETT, WASHINGTON �� In order to determine t1�e Sewer CagitaZ Improvement charges for business developments� t1�e foZZowing method was employed. It was best determi.ne�2 throu,qh the use of the Business Office Manager's Association figvres that the amount of active office space required per person is 85 sqaare £eet p2us another 20� ' per person for othez reZated areas such as storage� haZIways� reception areas� etc. This comes to Z02 square feet per person. For convenience we wi1Z use the figare of 100 square feet of office space per person. This figure is used to determine the nvmber of peopZe who wiZZ occupy a business compZex� e.i� 34�250 square feet of space would accommodate 392.5 people. According L-o a Joint Committee of the American Society of Civi1 Engineers and the Water Po1- Iution ControS Federatior.� 20 gal2ons per day per persan is the average f2ow for an oPfice/sma2Z basiess development; thus� rvitl� the figure used above, we would have an average daiZy flcw of 685 gpd which �onverted to galSons per minate equaZs 4.76 gpm average. This average number muZttpZied by the cost in the south end as determined by the Sewer Facilities Deve.Zopment chazges chart ($716J is $3�04Z. This figure must then be added to the peak usage F.igure which is determi.ned bg multiplying the 4.76 gpm by a peaking factor of Yd"� Z•� as determined� also� by the ASCE. This gives us a pealc fZow of 1Z.0 gpm which when multipZ°Ad by ihe cost/gpm pea:c as charted ($204J gives us a do2lar figure .• of $2�430. The�= two figures when combined give us a i•otal charge of $SS84U for an Office Comp_'ex of 34�250 sguare feet Zocated in the South End Interceptor Benefit Area. This .is a cost of $0.27 per square foot for office use .in the South End Interceptor Area. , Since schoo2 asage is� a1so, on the order of 20 gpd/person5 ihe:,e vaZuer can be adapted to that use on tlie basis of the nvm.ber of studenL-s. For. Z20 students the average f2ow wouZd be 1.67 gpm and the peak fZow would be 4.17 gpm giving $I�196 for average and $852 for peak fZows in the South F.nd InLercepLor Ar.ea for a total of $2�U47 which is abovt $I7 per �upi.Z. LD;is - ��