196 

 

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Number of pounds of unwanted/expired pharmaceuticals collected: 4,700 pounds collected in 
2015 (over 20,000 pounds since the program began in 2009) Number of community events 
attended Five in 2015  

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Number of hotline inquiries: 151 in 2015  

 

ENERGY EFFICIENCY  

 

Indication of management commitment (e.g., energy efficiency standard operating procedures; 
board/executive management energy efficiency policy, including quantitative goals developed 
and shared with stakeholders)  

 

Energy audit/benchmarking conducted to identify priorities for energy efficiency improvements  

 

‘Energy teams’ established and individuals empowered within the utility for energy efficiency 
activities (e.g., an “energy advocate” or “energy champion”)   

 

Energy management-related training provided to plant staff 

 

Utilization of energy conserving operational methods (e.g., optimization of primary 
sedimentation to reduce utilization of pure oxygen) 

The District’s Strategic Plan includes a principle to conserve energy. There is a specific objective that 
states “Identify and implement energy efficiency projects.”  

An Energy System Master Plan for the MWWTP was completed in 2012.   

There is sub-metering for critical processes, which will be enhanced through additional sub-metering.   

Anaerobic selectors were added, which significantly reduced the amount of horsepower required for 
each reactor train in the secondary treatment process.   

The oxygen compressors were optimized to only produce the amount of oxygen required for the 
MWWTP. Reducing the amount of oxygen produced saved energy while not affecting the overall 
treatment process.   

Performance Measures & Results 

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Participation in research activities: Participated in the WERF WaterWatts Energy Research 
project.  

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Key Performance Indicator in Strategic Plan: Reduce indirect greenhouse gas emissions to zero 
by 2040 and direct emissions by 50% by 2040 compared to the 2000 baseline  

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Energy intensity: 2,220 kwh/MG  

 

ENERGY GENERATION & RECOVERY  

 

Indication of management commitment (e.g., standard operating procedures; board/executive 
management renewable energy conversion policy, including quantitative goals developed and 
shared with stakeholders)   

 

Internal energy sources evaluated (e.g., biogas, hydropower, heat in wastewater), and/or 
renewable energy sources evaluated on an ongoing basis (e.g., solar, wind, co-digestion)