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�,. PART 9 : SUBJECTIVE EVALUATION <br /> A. Describe briefly the physical and structural conditions of the <br /> treatment facilities : <br /> All units are in good operational order, <br /> B. Describe the condition of the collection/conveyance system <br /> including lift stations (i . e . age of sewer, <br /> infiltration/inflow etc. ) <br /> All lift stations are in good condition Collection system is <br /> undergoing I & I study, repairs and replacement. <br /> C. What sewerage system improvements does the community have <br /> under consideration for next 10 years? <br /> I & I repair and filter expansion or installation of a DAF <br /> unit, <br /> D. ( 1 ) List the theoretical design life of the plant. 20 <br /> (2) List what you believe is the remaining useful life of the <br /> wastewater treatment facilities in light of development <br /> and maintenance/condition of the facilities : _12 years_ <br /> (3) Explain basis for estimate of remaining useful life : <br /> O&M repairs and replacement are carried out as necessary. <br /> E. What problems, if any, have been experienced over the last <br /> year that have threatened collection or treatment of <br /> wastewater? <br /> We have an I & I problem, however. we have made some repairs <br /> and it appears that we have decreased our I&I by approximately <br /> 20% <br /> 21 <br />