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<br /> . <br /> Page 4 <br /> e (4 ) Multi-family was grouped as "non-residential" because most multi-family <br /> customers are now "commerical." The remainder will be made "commerical" <br /> 7-1-85. <br /> . <br /> Within the residential class, it has been found that the small variations <br /> between customers makes it unnecessary to calculate a separate charge for <br /> each customer. Therefore, the 5830,332 can be divided equally among the <br /> 28,747 residential customers at $2.41 per customer per month. <br /> Within the commercial (non-residential) customer qrouo, there is a great deal <br /> of variation in lot size and coverage. It is important then to have a method <br /> to calculate individual bills in some way that reflects runoff contribution <br /> from that specific property. Staff investigated the possibility of collecting <br /> data for the 4800 non-residential customers. Rough estimates are that data <br /> collection and programming cost would approach 590,000 to set up a billing <br /> calculation on the basis of runoff. Currently, EWEB sewer billing costs are <br /> about SI10,000/year. Bills are prepared using information available from EWEB <br /> records. Most of the expense is incurred by keeping customer history, <br /> handling customer contacts, making changes to accounts and handling transac- <br /> tions. If EWES were to perform the billing for the commercial storm sewer <br /> charge, the cost will range from 28~ to 75C per account per month for the 4800 <br /> customers. That is from 516,000 to 543.000 per year of added billing costs <br /> from EWEB in addition to the cost of city staff keeping the source data <br /> current. Time of implementation would be approximately eight months. <br /> e Upon the advice of CH2M Hill, the city staff investigated an alternative tech- <br /> nique used in other studies. It has been found that the size of the water <br /> meter is related to the size of the parcel served. <br /> TABLE 3 <br /> MAY 2, 1985 EWES METER SIZE DATA <br /> Meter Size Number Flat Monthly Charge/Customer <br /> Of Meters <br /> RESIDENTIAL <br /> 5/8" 28747 S 2.41 <br /> NON RESIDENTIAL <br /> 5/811 2217 5 12.05 <br /> I" 1224 5 18.08 <br /> 1.5" 629 $ 24.10 <br /> 2" 554 $ 36.15 <br /> 3" 88 $ 60.25 <br /> 4" 56 S 72.30 <br /> 611 67 5120.50 <br /> 811 34 5156.65 <br /> - 1011 6 5192.80 <br />