Wastewater Treatment Plant Expansion Project

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Project Overview:

In partnership with Garney Construction, Loveland Water and Power (LWP) will be working to expand the Wastewater Treatment Plant located at 920 Boise Ave. The long-awaited $32M expansion project will completed in four phases. Construction will begin in May 2017 and completed by September 2019.

Project Goals:

Wastewater Treatment Plant (WWTP) Expansion Project Goals:

  • Increased regulatory requirements - In accordance with new State permit limits, the plant effluent to the river must meet very low limits for phosphorus and nitrogen by 2020.
  • Increase capacity to meet population growth - When all work is complete, the WWTP will be re-rated from 10 million gallons per day (MGD) to 12 MGD allowing for an additional 10 to 15 years of growth for Loveland residents.
  • Replace aging infrastructure - Including renovation of the existing secondary clarifiers, improvements to the existing anaerobic digesters, and replacement of the headworks screening equipment.

Estimated Timeline:

Project Phase  Scope of Work    Projected Start Date*  Projected Finish Date*
 Phase 1  Preliminary Planning  January 2015  June 2015
 Phase 2  Final Design  July 2015  April 2017
 Phase 3

 Construction - Part 1 

  • Demolition of the abandoned digesters and maintenance garage
  • Various water and sewer line relocations
  • Construction of the new maintenance garage
  • Rehabilitation of all three secondary clarifiers
  • Excavation for the new digester facility
  • Demolition of the east sludge drying beds

 May 2017  December 2017
 Phase 4

Construction - Part 2 

  • Improvements to the existing aeration basins for the addition of the biological nutrient removal (BNR) process
  • Headworks Screening Improvements
  • Construction of the new digester facility and supporting infrastructure
  • Construction of an Anoxic Tank to aid in the BNR process
  • Construction of a new electrical building

 August 2017  September 2019

 *Dates are subject to change.


  • Update 4/2017: Press Release: Expansion Project to begin at the Loveland Wastewater Treatment Plant.
  • Update 5/2017: Blog: The Future of Loveland's Wastewater Treatment Plant
  • Update 7/2017: Phase 3 of the project is 20% complete.    
    • The rehabilitation and protective coatings work continues inside Secondary Clarifier No. 3.
    • The removal of the east sludge drying beds are complete in order to make way for the new maintenance building.
    • Work continues on the under-slab utilities and foundation for the new maintenance building
    • Excavation and installation continues on the 30” sewer pipe re-alignment in preparation for the new Digester facility.
  • Update 8/2017: Phase 3 of the project is 41% complete.
    • The excavation, bypass pumping, installation of pipe and manholes for the 30" diameter north Boyd sewer interceptor realignment is complete.
    • The maintenance building underslab utilities are complete as well as the water and sewer connections to the new building site.  The slab foundation has been placed and the CMU block wall installation has begun.
    • Demolition of yard piping is underway along with the demolition of the old digesters and maintenance building
    • The installation of the new mechanism and coating system for Secondary Clarifier 3 is complete.  Startup and testing is underway to bring that treatment process back online. 

Monthly Time-lapse:

Construction at the Wastewater Treatment Plant began in May 2017. These activities have been captured in a monthly time-lapse video update. The June 2017 update is available below.


Project Documents:

3D Renderings
Biological Nutrient Removal System
Digestor Facility 


Brian Gandy
Special Projects Manager and Project Manager for the Wastewater Treatment Plant Expansion Project



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