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City of Bloomington Utilities
Bloomington, Indiana
Project Background
The leadership of Bloomington Utilities
was looking to upgrade their city’s 20
million gallons per day (MGD) wastewater
treatment facility and significantly
improve energy efficiency. The upgrades
needed to improve the local environment
without increasing costs to rate payers.
Strategies & Solutions
Energy Systems Group leveraged the most
advanced technology in water treatment
systems with their award winning design
and project management team to improve
the City’s wastewater processing capabilities.
This $2.3 million project increased energy
and operational efficiency while extending
the life of the treatment plant to function
well into the next decade. The benefits to
the citizens of Bloomington included:
• Innovative Water Treatment System
Improvements to Increase Overall Capacity
and Facility Life
• Guaranteed Energy Savings to Fund
Existing Water Services
• Upgraded HVAC & Lighting Systems to
Increase Facility Operations
• Financing Package Using Tax Exempt
Options to Maximize Existing Budgets and
Minimize Effects on the Existing Tax Base
• Increasing Plant Efficiency while Improving
the Local Environment
Key Installed Technologies
Treatment Facility Improvements
• New fine bubble aeration diffuser system
• Structural upgrades to aerobic digester
• New 600 HP high efficiency, centrifugal
blower system
HVAC System Improvements
• New gas fired make-up air units
• Upgraded HVAC control systems
Lighting Improvements
• New exterior high efficiency lighting
• Upgraded emergency lighting systems
30% Reduction inWastewater Treatment
Facilities Annual Energy Consumption
Energy and
Operational Savings Over
$2.6 Million
ESG is an award-winning energy services company that provides its customers with
innovative energy efficiency, technology, and long-term financing solutions for
modernization of their facilities and energy infrastructure.
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