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City of Santa Ana, CA i SANITARY SEWER AND WATER FINANCIAL PLAN <br />defined by those assets having a similar function, cost structure, <br />and useful lives and refurbishment intervals. <br />3.3 Incorporate into the Asset Class Library the useful lives, <br />rehabilitation program definitions, intervals and costs, and <br />replacement schedules and costs for each asset class based on <br />industry standards. <br />€-a Define Useful lives: For each defined asset class a <br />determination as to expected useful life will be made. The useful <br />life is defined as the number of years of normal use that can be <br />expected prior to replacement becoming necessary. The <br />estimate will be based on our industry experience, <br />manufacturers' estimates, previous literature research, and our <br />work for other agencies, These estimates are contained within <br />our CAMPS Library. <br />5 Define rehabilitation programs, intervals <br />and costs: Most asset classes require various <br />capital rehabilitations on a cyclic basis in <br />order to sustain or extend the asset's useful <br />lives. Pump stations, for example, can be <br />expected to undergo pump rehabilitation, <br />motor overhaul, replacement of electric <br />components, and mechanical overhaul at <br />intervals shorter than the cycle for the <br />replacement of the assets themselves. Where <br />such programs are applicable, we will define <br />appropriate rehabilitation intervals and costs <br />that might be considered capital expenditures. <br />Asset - Tank #107 <br />Installation Date 1955 <br />Asset Class ReserwirSteei <br />Assot Glass Factors <br />Repiacem@nt Factors <br />UsotUt Li?e:;?; years- 60 <br />PricdnpAttn <br />buto Mc; 1 <br />_ <br />Unit Ante - $ 500,000 <br />Re&crbTs?ent <br />RefurbFslrci)ent 1 Painting <br />Frequency years 1o <br />cost 3 - 25,000 <br />1)e(urbfshmer+t 2 Cleaning <br />Frequency yeais 4 <br />host S 40,000 <br />Define replacement intervals and costs: For each asset class <br />an estimate of the base-year replacement cost will be <br />incorporated. The estimates will be based on the experience of <br />our engineers, construction cost estimates we have recently <br />prepared for other clients, industry standards, and our <br />experience with other agencies. For unique assets, we will <br />adjust historical costs to the base year using Engineering News <br />and Report (ENR) indices. <br />0 Where possible, replacement costs, like other asset <br />attributes, will be defined in terms of unit costs to facilitate the <br />class-based estimating approach (dollars per foot of various <br />types of pipe, dollars per gallon for storage facilities, dollars per <br />square foot for buildings of various classes, etc.). <br />fl Facilitate an Asset Class Validation Workshop: Each of these <br />components of the asset class will be presented in detail within <br />BLACK & VEATCH I Methodology <br />25D-16