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■1.spare effluent screen.per 100 customers <br /> ■Annual inspection of each tank and sludge removal every five years,or as experience dictates. <br /> 5.The OWNER's sewer use ordinance shall contain special provisions regulating STEP/STEG systems.Essential <br /> provisions include: <br /> ■Exclusion of infiltration and inflow,including a ban on connection of non-sewage wastewaters. <br /> ■Prohibition of and establishment of penalties for modifications,repairs,or tampering by the <br /> USER. <br /> ■Control of materials and workmanship through adoption of technical specifications and <br /> construction standards. <br /> ■Regulations and procedures for connection to a STEP/STEG system of new USERS,including <br /> signing of easements as a condition of service.Assessment of differential user fees is optional. <br /> ■Regulations for adding new STEP/STEG systems and extending existing systems to serve new <br /> areas,including submittal of plans as outlined below. <br /> ■Record-keeping for all installed STEP/STEG tanks by lot number,tank number,and address. <br /> DESIGN SUBMITTALS <br /> Plans and specifications shall be submitted for prior approval in accordance with OAR 340-52.Submittals shall include: <br /> 1.Engineer's design calculations covering hydraulics and the sizing of STEP/STEG tanks,pumps,and lines.In <br /> general,system design shall conform with recommendations published in Manual of Practice FD-12,Alternative <br /> Sewer Systems,Water Pollution Control Federation,1986 and with applicable Oregon Administrative Rules. <br /> 2.Technical standards and specifications for STEP systems to be installed,including acceptance testing. <br /> 3.Copy of current ordinance allowing use of STEP/STEG systems within the OWNER's set-vice area.This may be <br /> 'in the form of an amendment to the OWNER's Sewer Use Ordinance. <br /> 4.Copy of access easement form to be signed by USER. <br /> 5.Engineer's evaluation of hydrogen sulfide production from the STEP mainlines and design of control measures to <br /> '.. protect gravity sewer system against corrosion. <br /> 6.List of spares and repair materials to be supplied to the OWNER to assure reliable operation of the system. <br /> 7.Copy of the current approved construction,design,and equipment standards that have been adopted by the <br /> OWNER. <br /> 8.For each new system or extension,a Land Use Compatibility Statement in accordance with OAR 340-18. <br /> P <br /> 9.A copy of the Proposal form or similar itemized list of quantities involved in the project. <br /> 10.The name and address of the OWNER,developer,and engineer shall be shown on the plans.Easements shall <br /> also be shown.Blanket easements may be indicated by note. <br /> TANKS AND INLET PIPING <br /> ■Single tanks serving multiple lots under separate ownership will not normally be allowed.Each residence or site <br /> should have a separate tank.The rare exception will be considered case-by-case. <br /> C <br /> t <br /> i <br />