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13 <br /> Slide #16 <br /> Community System Disadvantages <br /> a <br /> Z <br /> W Disadvantages <br /> O 0 <br /> X 1. Higher costs may work against attainable housing goals <br /> X 2. System problems and costs affect all property owners <br /> X X 3. Some maintenance costs are still incurred by household <br /> X X 4. HOA control and responsibility <br /> X 5. Can be a higher installation cost,on a per-lot basis <br /> X 6. Developer bears costs of design and most of installation <br /> For disadvantages, Tony Whitaker listed potentially higher costs affecting affordable <br /> housing goals, the "if it fails, everybody is impacted" concern, questions about HOA capability to <br /> manage systems, and the significant upfront cost burden on developers who must construct entire <br /> systems initially rather than leaving septic installation to individual builders. <br /> Vice-Chair Hamilton asked about construction timing. <br /> Tony Whitaker explained that under the EOP process, once the wastewater system is <br /> permitted for construction, building permits can be sought, with the presumption that system and <br /> home construction occur simultaneously. <br /> Slide #17 <br /> Failure of System Components <br /> Replacement <br /> Durability for Materials <br /> System Long-Term Readily Relative Cost <br /> Component Service Available? to Replace <br /> Tanks HIGH YES $$$ <br /> Filters MEDIUM YES $ <br /> Pumps MEDIUM YES $ <br /> Controls& MEDIUM YES $$ <br /> Alarms <br /> Advanced Pre- HIGH YES $$$ <br /> Treatment Units <br /> Dispersal Field MED-HIGH YES $$$ <br /> (Repair Field) <br /> Tony Whitaker said generally, the things that cost the most have the highest durability. He <br /> said high durability means that the part should not have to be replaced again during the life of the <br /> system. <br />