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CX-005871: Categorical Exclusion Determination

City of Mesa Reclamation Blower Units
CX(s) Applied: B5.1
Date: 05/16/2011
Location(s): Mesa, Arizona
Office(s): Energy Efficiency and Renewable Energy, Golden Field Office

The City of Mesa (COM), Arizona proposes to use $749,500 of Energy Efficiency and Conservation Block Grant (EECBG) funds for blower retrofitting activities at the South East Wastewater Reclamation Facility (SEWRF). The purpose of this project is to retrofit the SEWRF with turbo blowers and fine bubble aeration. This energy efficiency project will replace the existing 400 horsepower (hp) blowers and coarse bubble diffusers with 250 hp turbo blowers and fine bubble diffusers. The existing blowers are oversized and inefficient and the proposed changes will result in an overall cost and energy savings.