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Comparison of Design Options <br />Treatment UnitRequired ImprovementsDifferences <br />Option 1Option 2 <br />Grit RemovalNewCycloneNewCycloneNone <br />Primary ClarifiersTwo40-foot ClarifiersTwo40-foot ClarifiersNone <br />Trickling FiltersPump/Controls UpgradePump/Controls UpgradeNone <br />Activated Sludge1.8 Million Gallons2.6 Million GallonsOption 2 Requires More Aeration Volume <br />Final ClarifiersNew CoversNew CoversNone <br />FiltersControls/ChlorinationControls/ChlorinationNone <br />UV DisinfectionOneNew UV UnitTwo New UV UnitsOption 2 Requires anAdditional New Unit <br />14 <br />