Wastewater Treatment and Collection:
Wastewater Treatment
Big Park WWTP Headworks
Owner: Big Park Domestic Wastewater Improvement District
Delivery Method: Design-Build
Contract Value: $44,698
Year Completed: 2011
Scope of Work:
The Big Park Domestic Wastewater Improvement District provides sanitary sewer service to portions of an unincorporated area in Yavapai County known as the Village of Oak Creek and Big Park. FE was the Design-Builder for this project which retrofitted the wastewater treatment plant's headworks with a new system. The work included the installation of a 2-inch water line, a concrete pad, steel walkway with grating, handrail, piping and pre-purchased headworks equipment.
Sedona WWRF Long Term Effluent System
Owner: City of Sedona
Delivery Method:
Contract Value: $1,654,834
Year Completed: 2005
Scope of Work: The FE Team served as the general contractor on this project, which consisted of the construction of an effluent booster station, upgrades to the effluent system surge tank, inter-connective piping to the existing effluent disposal system, construction of a 40 acre irrigation effluent disposal area, and upgrades to the existing effluent disposal wet lands.
The booster station included a cast-in-place concrete wet well, vertical turbine pumps and associated electrical and controls.
Camp Verde Wastewater Treatment Facility
Owner: Camp Verde Sanitary District
Delivery Method:
Contract Value: $9,051,386
Year Completed: 2010
Scope of Work: This project consisted of the construction of a new 0.65 mgpd wastewater treatment plant to replace the old lagoon treatment system. The project included the installation of a force main to the new headworks system, a wastewater treatment plant package from Aero-Mod, a septage receiving system, a plant water system, and sludge dewatering equipment.
City of Prescott Airport Wastewater Reclamation Facility
Owner: City of Prescott
Delivery Method:
Contract Value: $3,360,000
Year Completed: 1999
Scope of Work:
This project was designed by Black Veatch to expand and upgrade the existing 0.8 mgd Wastewater Treatment Plant to a 2.2 mgd for the City of Prescott. The project included extensive earthwork and major concrete structures. It consisted of one 60' clarifier, headworks, anoxic basins, oxidation ditch, RAS pump station, automatic backwash filter, return flow lift station and UV disinfection system. The project was completed on time and within budget, no change orders were needed.
City of Prescott Airport Centrifuge Building &
Equipment Installation
Owner: City of Prescott
Delivery Method:
Contract Value: $654,294
Year Completed: 2009
Scope of Work: Fann Environmental served as the general contractor on this project, which included the installation of an owner-purchased Centrisys centrifuge sludge dewatering unit, underground piping, construction of a masonry building, electrical system work, and asphalt replacement. FE extended existing underground piping to supply the new equipment with waste material. Once installed, Fann Environmental constructed the new building around the equipment and provided connections for future expansion. FE coordinated commissioning and start-up services between the owner and equipment representatives.
City of Prescott Sundog WWTP Secondary Digester
Owner: City of Prescott
Delivery Method:
Contract Value: $330,274
Year Completed: 2008
Scope of Work: Fann Environmental served as the general contractor on this project. This project included the cleaning and recoating of the secondary digester, removal and replacement of digester mixers, upgrades to the structural building components, insulation of external mixing tubes, and painting/coating of the digester building and roof.
FE designed and provided solutions when it was discovered that several metal structural supports within the interior were compromised. By providing this service and additional value engineering during the project, Fann Environmental was able to complete the work and additional repairs under the original contract amount.
Globe Secondary Clarifier Removal and Installation
Owner: City of Globe
Delivery Method:
Contract Value: $89,790
Year Completed: 2012
Scope of Work: Fann Environmental was contracted to provide the City of Globe with clarifier removal and installation at the city's wastewater treatment plant. The project included sandblasting all metal surfaces of the existing clarifier trough and supports, epoxy-coating all exposed metal surfaces, and the installation of new clarifier equipment pre-purchased by the city. The installation of the Westech Cage Drive Clarifier included all plumbing and electrical wiring necessary for clarifier operation.
Kearny Water Reclamation Facility Aeration Modifications
Owner: Town of Kearny
Delivery Method:
Contract Value: $70,211
Year Completed: 2012
Scope of Work: FE was awarded the contract to perform upgrades to the aeration equipment located at the Kearny Water Reclamation Facility. The project consisted of automating three blowers using a control system consisting of dissolved oxygen sensors, a new programmable logic controller, variable frequency drives, and replacement of the existing UV disinfection system. This was a federally funded project.
Lake Havasu City Effluent Pump Station Improvements
Owner: Lake Havasu City
Delivery Method:
Contract Value: $675,865
Year Completed: 2013
Scope of Work: FE served as the general contractor for this project which consisted of the construction of the replacement station at the Mulberry Wastewater Treatment Plant. The work included removing the existing pump station and piping, furnishing and installing a new package pump station. FE also completed the excavation and compaction work necessary as well as laying the ductile iron pipe and fittings, Schedule 80 PVC pipe and fittings, bowl-type strainer, cast-in-place pump station foundation, canopy, insulating flanges, all electrical and instrumentation, and SCADA system. The project also included the construction of flow control valve vaults and level controls at the London Bridge Golf Course East and West ponds.
Window Rock WWTP Improvements Phase 1
Owner: Navajo Tribal Utility Authority
Delivery Method:
Contract Value: $1,986,161
Year Completed: 2013
Scope of Work: FE served as the general contractor on this project. The project consisted of upgrades to the existing wastewater treatment plant headworks and electrical system, including new concrete structures, mechanical bar screen, grit removal system, flow metering system, two submersible pump systems, piping, and grading. The upgrades to the electrical system included new switchgear, site lighting, and power to the new equipment. Value Engineering from FE allowed enough savings to allow the Operations Building from Phase 2 to be built in Phase 1 under the same budget.
City of Page Wastewater Evaluation
Owner: City of Page
Delivery Method:
Contract Value: $8,700
Year Completed: 2008
Scope of Work: Fann Environmental was the Engineering Consultant for this project. FE evaluated the entire wastewater treatment system for the City of Page, which had bee in use for over 35 years. All components of the treatment system were evaluated including the influent structure, static screens, equalization tank, oxidation ditches, secondary clarifiers, an abandoned denitrification basin, sand filters, chlorine contact basin, solids handling tank and the electrical control system.
Several modifications and/or upgrades were recommended to the City to achieve a higher performance rate for treatment. These recommendations were provided in an order of priority to allow the City to budget accordingly.
Sedona WWTP Piping and Valve Diagram As-Builts
Owner: City of Page
Delivery Method:
Contract Value: $30,558
Year Completed: 2009
Scope of Work: Years of upgrades and changes left the City of Sedona without accurate drawings (blueprints) of the Wastewater Treatment Plant active process piping. FE reviewed all of the plant's design and construction drawings, surveyed the plant structures, and compiled all piping and facilities into one drawing. FE was able to determine which lines were active or abandoned and depicted the active pipelines. The project also included the development of a valve exercise program for the plant operators.
American Ranch Wastewater Evaluation
Owner: American Ranch Sanitary District
Delivery Method:
Contract Value: $4,800
Year Completed: 2009
Scope of Work: Fann Environmental conducted an evaluation of this wastewater system, which included analysis of all system components and a review of operation financials. The analysis also included research of the original design assumptions/parameters and development of recommendations for normal
operational procedures and changes needed for the facility with cost estimates of changes for both current flow and projected flows. Fann Environmental provided verbal and written reports to the District and a detailed presentation of findings, recommendations, and projected costs to the Board of Directors.