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S8 I I I I I I I I I I I I I I I I I I I Sanitary sewer service is expected to be available to portions of the 2000 Urban Service Area by 1990. The 2000 Urban Service Area property owner shall remain responsible for individual waste disposal until such time that the sewer connection is affected. Urban area lot dimensions tend to be more restrictive for certain methods of waste disposal. It is the purpose of this section to provide the urban service area with alternativesto the long-term approach of individual waste treatment hereto before outlined in this chapter. Such alternatives will allow for "temporary" treatment until such time that the property is connected to the municipal sewer. Systems described herein are not applicable to the 2000 rural and transition areas (as defined in Section 170.01.2B) as the systems are not considered to be long-term disposal methods. SUBDIVISION 2. HOLDING TANKS. Holding tanks may be allowed only as replacements for existing non-conforming urban service area systems and only where it can conclusively be shown that a standard or approved alternative system cannot be feasibly installed, or where holding tanks can be demonstrated to be more economical than alternative systems. Construction A holding tank shall be constructed of the same materials and by the same procedures as those specified for watertight septic tanks, except that there be no outlet pipe. Access A cleanout pipe of at least six (6) inches diameter shall extend to the ground surface and be provided with seals to prevent odor and to exclude insects and vermin. A manhole of at least twenty (20) inches in dimension shall extend to a point within twelve (12) inches, but no closer than six (6) inches, below finished grade. The manhole cover shall be covered with at least six (6) inches of earth. Depth of Bury The tank shall be protected against floatation under highwater table conditions. Capacity For a dwelling, the size shall be two thousand (2,000) gallons of four hundred (400) gallons times the number of bedrooms, whichever is greatest. For permanent structures other than dwellings, the capacity shall be based on measured flow rates or estimated flow rates. The tank capacity shall be at least five (5) times the daily flow rate. Location Holding tanks shall be located: a. In an area readily accessible to the pump truck under all weather conditions; b. As specified for septic tanks; c. Where accidental spillage during pumping will not create a nuisance. Water Meter A water meter shall be required with all holding tanks to measure the flow to all plumbing fixtures except the outside sillcocks. Readings shall be submitted at least quarterly to the pumper and the council. Readings shall be used to establish the amount of sewage pumped and hauled.