Design-Builder of the District’s $200M Stored Water Recovery Unit Program. This overall program, delivered in phases, provides an east-west connection between the California Aqueduct and the District’s Pond-Poso Canal System, allowing the bidirectional conveyance of up to 720cfs of water. The initial phase consisted of a $47M project which included the following features: 38,000LF of 120” RCP pipeline, 144” tunnel crossing of Hwy 5, aqueduct turnout, 12,000HP junction reservoir pumping plant, concrete-lined canal and forebay, reservoir spillway with adjustable weir structure, connection channel check structure with reverse flow pumps and electrical/instrumentation. Subsequent projects within the program include a 1.0MW electrical generation facility that utilizes tracking photovoltaic solar panels, raw water processing plant, various pipeline expansions to include additional water banking areas, pumping plant energy recovery and piping interties.

������Ƶ. was the prime contractor on this progressive design-build project that connected portions of the District’s X, Y, and Z Distribution Systems in order to provide irrigation water to an additional 3500 acres of orchards and row crops. The project included the installation of 18,900LF of 30” to 36” RCP pipelines, 30,200LF of 18” to 27” PVC pipelines, 23 landowner farm turnouts and two 100cfs booster pump stations.

WML partnered with Webcor Builders to provide subcontracting services to support the delivery of the UC Merced 2020 Project which nearly doubles the size of the existing UC Merced campus by adding 13 buildings with supporting infrastructure, featuring 1.2M gross square feet of classroom, research, student life, housing and faculty office space. The $1.3B Design-Build-Operate-Finance project utilized the P3 (Public-Private-Partnership) delivery method.

W.M. Lyles Co.’s subcontracting scope of work included 19,000LF of 4”-16” domestic/fire water piping, 12,500LF of 4”-20” chilled water piping, 4,000LF of 3”-8” gas piping, 3,500LF of 4”-14” reclaimed water piping, 11,500LF of 4”-21” sanitary sewer piping, 2,000LF of 8” sewer force main piping, and over 26,000LF of 6”-36” storm drain piping. Other work included concrete retaining walls, storm drain headwalls / outfalls, manholes, catch basins, demolition of existing utilities/structures, sanitary sewer lift station, over 400,000LF of conduit duct bank / pathway for power, IT, emergency blue phone system, lighting, security, traffic signals, and wireless access points including the concrete foundations for over 450 light fixtures.

This full project build out is ultimately capable of processing 300,000 tons per year of organic waste-to-energy. The facility was constructed in four Phases and generates biogas from organic waste materials such as green yard waste, mixed green waste (trail mix), food waste, and FOG.

Phase 1 work provided a complete functioning plant, while the balance of the phases provided for the expansion of processed volumes of organic waste-to-energy. Phase 1 included a 45,000 SF pre-engineered Receiving Building where the green waste is ground and mixed to a suitable size for anaerobic digestion. The green waste is then transported via conveyor system to four (4) each (98’Lx23’Wx25’H) concrete anaerobic digesters that are equipped with slow moving agitators to create a homogenous blend of feedstock digesting 76,000 tons/year.

The anaerobic digesters produce methane gas (approx. 430 SCFM) which is piped to a concrete round post digester (62’ dia. x 32’ H) that has a flexible double membrane gas storage dome roof. The post digester gas is then cleaned up through a gas conditioning system to produce a natural gas pipeline quality equivalent. The product gas is then compressed and is used for natural gas trash disposal trucks and/or fuel for powering
generators to provide electrical power for the plant. The total capabilities of this project approaches 4 megawatts.

������Ƶ. (Lyles) has teamed with Anaergia, a global leader in both the agricultural and the waste sectors to deliver the Victor Valley Wastewater Reclamation Authority (VVWRA) Biomethane Project. This renewable energy project is designed to collect and upgrade biogas from existing digesters within the VVWRA and meet the specifications of SW Gas Rule 22. Sludge and food waste will be digested to generate biogas that will be conditioned and upgraded into pipeline quality natural gas and sold through the local utility agency.

This project utilizes Anaergia’s Omnivore high solids approach to the anaerobic digestion of wastewater and nutrient recovery with robust thickening systems to triple the capacity of the existing wastewater digesters. The VVWRA Biomethane project reduces approximately 6,000 metric tons of methane (2 million CO2 tons equivalent) per year, which otherwise would have been flared or released into the atmosphere.

The VVWRA facility leverages the existing wastewater treatment plant to meet organic waste recycling requirements, expanding yields of renewable energy, while partnering with publicly owned infrastructure.

������Ƶ. has teamed with Anaergia, a global leader in both the agricultural and the waste sectors to deliver this one of a kind, progressive design-build project. The Rialto Bioenergy Facility (“RBF”) addresses two pressing waste management issues in Southern California: food waste diversion from landfills, and biosolids management. The RBF is designed to convert 700 tons per day of food waste, and 300 tons per day of biosolids into renewable natural gas, renewable electricity, and class A fertilizer, making it the largest project of its kind in North America.

The design includes a Receiving and Pre-Processing Area in which both Wet Fraction (food waste) and Biosolids Cake (dewatered sludge) are received and stored separately inside two Storage Silos. The cake from the Cake Silo is fed directly to the dryer, and the wet fraction is sent through a series of cyclones (dynamic and hydro) to remove any remaining in-organics before being sent to anaerobic digesters. The wet fraction is biologically broken down within the digesters and methane (biogas) is released. The solid waste is pumped to a centrifuge to be dewatered before being transferred to the dryer. The dried product undergoes pyrolysis to allow for the generation of a liquid centrate that is treated at the new WTP in an effort to capture and reuse as part of the overall project, and the pyrolyzed char will be shipped off-site via truck and sold as fertilizer. The biogas generated from this process is then converted to a RNG (Renewable Natural Gas) through a series of gas conditioning equipment and used as two forms of renewable energy. The RNG is used as fuel to operate CHP engines that generate up to 3 MW of electricity that is upgraded and pressurized then sold to Southern California Edison to be injected into the SoCal Gas pipeline.

������Ƶ. celebrates another successful joint venture with AECOM and Veolia on the Rialto S1 WWTP Improvements Projects along with Veolia Water West Operating Services, Inc. The plant’s effluent comprises 100% of the City’s stream flow and this expansion project required maintenance of discharge flows for the existing plant at all times.

To make this feasible, the general strategy was to build the Plant No. 5 expansion, new disc filters and new CCT Disinfection and keep them “off -line” until startup and testing were complete. Then, the new facilities could be brought online. Critical path activities included construction of Plant No. 5 facilities. As such, the timing for construction of the other plant facilities had to be so that all new facilities were ready for performance testing at the same time.

Once the new Plant No. 5 facilities were online, a final live connection/tie-in was completed at the influent pipeline without disruption of flow. The final tie-in was completed successfully, this was completed with the use of Bypass systems installed by WML. The project was completed on budget and three months ahead of schedule.

Upgrade to the existing wastewater treatment plant from 4.9 MGD to 12.74 MGD. This was accomplished by in part by replacing aging systems, including the trickling filter treatment process with a biological nutrient removal (BNR) system. Other improvements included three new secondary clarifiers, headworks, DAFT facilities, operations, warehouse, cogeneration, and blower buildings, vehicle canopy, RAS pump station, WAS EQ tank, scum pump station, W-3 pump station, chemical feed facilities and effluent polishing earthen channel to discharge to the Salinas River. Efficiency upgrades included a cogeneration system to use digester bio-gas to generate heat and electricity. Listed construction improvements were coordinated with plant staff, and completed on this multiple phased construction project while the existing treatment process remained in operation.

Construction of a 6.0 MGD expansion to an existing conventional WWTP that increases the treatment capacity up to 14.0 MGD. Construction activities include headwork’s expansion with new bar screens, washer compacter, and grit classifier, two primary clarifiers, equalization basin, bioreactor, bio filter, secondary clarifier, cloth disc tertiary filters, chlorine contact basin, recycle water pump station, masonry digester building, solar drying beds and odor control system, five electrical buildings and associated site electrical, instrumentation, piping, paving, and fencing. Upgrades to the existing plant include new centrifuges, fixed steel digester covers, odor control facilities, masonry thickener building and chemical building upgrades.

The VVWRA Subregional Plants Project includes two individual 1 MGD scalping water reclamation plants (WRP), one located in the City of Hesperia and the other in the Town of Apple Valley. They treat a portion of the local wastewater, while all solids and the balance of the wastewater continues to the main treatment plant in Victorville. This scalping design provides needed reclaimed water to local agencies as well as reduce the impact of the wastewater flows on the existing pipeline system. The two facilities include odor control filters, storm water pump stations, reclaimed water pump stations, influent fine screens, two aeration basins, inline UV disinfection, Anaergia MBR including permeate and backwash pumping, RAS and WAS pumping station, percolation ponds, distribution piping, paving, and elaborate site fencing. In addition to the WRP sites there is also a Hesperia Lift Station site with a 40 foot deep pump station, odor control filter, masonry electrical building and associated site piping, paving, and fencing. In all, there are four (4) project site locations and 5 miles of pipeline traveling through the streets of Hesperia and the Town of Apple Valley.