Drew D. Liles

Professional Engineer: Florida (2012) Mr. Liles is an electrical engineer with experience in the design of industrial power systems for environmental facilities utilizing single and three phase electrical distributions. His knowledge includes most facets of electrical design, including design and development of single line power diagrams, lighting calculations, sizing of emergency standby generators, electrical equipment selection, design of elementary control diagrams, coordination with process and instrumentation control diagrams, and coordination between disciplines. He also provides other preliminary design and construction services such as reviewing shop drawings. Mr. Liles is involved in 3D/4D design, and is fluent with both AutoCAD 2005 and the new features of AutoCAD 2008. He is familiar with the capabilities of AutoCAD and its use to prepare 3D drawings for client review, and 3D isometric views and section cuts on traditional 2D drawings.

FBPE Licensed Professional Engineer in Florida - Current, Active

Cooler/Freezer Project - Orlando, FL, Current
I was the engineer of record and designed the phased construction of a 30,000 sq ft freezer, 50,000 sq ft cooler and 100,000 sq ft dry storage facility for food distribution. This included heavily modifying the existing 1600A service, providing a new 3000A service, providing connections and automatic transfer switches to an owner provided generator, power and controls coordination for over 12 condensing units and evaporators. My scope of work also included a new 3000A switchboard, associated feeders to all tenant provided equipment, implementing raceway and wiring systems for sub-freezing installations with considerations for mitigating moisture, and various office renovation work. I also coordinate with the power company for the installation of a new 1500KVA transformer and implemented tenant and owner provided specifications and standards into the design.

Retail and Office Tenant Build-out Projects - Central Florida, Current
I have been the engineer of record and designer for various retail tenant build-out projects, including modifying or providing new electric service, coordinating with the power company, coordinating with the tenant and owner for their specific project requirements (e.g. special equipment, locations of equipment, lighting, etc.), providing a complete power and lighting design (including lighting controls, fire alarm system performance specifications, low-voltage coordinate with the tenant's IT representative, access control raceways and boxes, etc.), and meeting the requirements of the local Authorities Having Jurisdiction (AHJ).

Retail Shell Buildings - Central and South Florida, Current
I have been the engineer of record and designer for various retail shell building projects of various sizes (ranging from 5,000 sq ft to 200,000+ sq ft) including providing new electric service, coordinating with the power company, coordinating with the owner for their specific project requirements (e.g. special equipment, locations of equipment, lighting, etc.), providing a complete power and lighting design (including lighting controls, fire alarm system performance specifications, site lighting photometric design and calculations, building electrical distribution to future tenants, etc.), and meeting the requirements of the local Authorities Having Jurisdiction (AHJ).

Electrical Engineer, Rinconada Water Treatment Plant (WTP) – Reliability Improvement Project, Santa Clara Valley Water District, Los Gatos, California, 2014 to 2016. Mr. Liles is providing assistance with the electrical design and construction services for this large-scale project. The scope includes the design of a new 80 million gallons per day (mgd) WTP using ozonation to replace the existing 80 mgd, all while maintaining the existing treatment plant. This involves an extensive phasing and coordination effort. Mr. Liles is also responsible for completing the electrical design for electrical upgrades to the chemical processes, including a new Class 1 reliability low voltage power distribution system and its associated phasing and temporary work to maintain all plant loads during construction. The project consists of modifications to existing switchgear, as well as several new motor control centers.

Electrical Engineer, Pine Hills WTP Ozone Improvements Project, Orlando Utilities Commission (OUC), Orlando, Florida, 2013 to 2016. CDM Smith was selected by OUC to complete the evaluation and eventual design and construction of ozone generation equipment improvements and upgrades to the existing water treatment plant. The evaluation included upgrades to the existing medium voltage generator paralleling switchgear, as well as modifications to the existing low voltage distribution, instrumentation, and motor controls. Mr. Liles provided the initial evaluation and will continue with the design and construction services.

Electrical Engineer, Southwest WTP Ozone Improvements Project, Orlando Utilities Commission (OUC), Orlando, Florida, 2012 to 2016. CDM Smith was selected by OUC to complete the evaluation, design, and construction of ozone generation equipment improvements and upgrades to treat 45.6 mgd of groundwater with an applied ozone dose of 9.8 mg/L. The improvements include: four 900-pounds per day ozone generators and power supply units; five 455-gpm sidestream injection pumps; open and closed loop cooling water systems with two 25-hp pumps, heat exchangers, and piping; a 400-scfm liquid oxygen feed gas system (tanks, vaporizers, filters, pressure regulating assembly); pipeline flash reactor and ozone injection system capable of treating 45.6 mgd; yard piping; demolition of the air-prep feed system and other equipment; electrical upgrades, instrumentation, logical controls, plant hydraulics evaluation, and ozone destruct system modifications. Mr. Liles assisted in the design and is currently in charge of the construction services.

Electrical Engineer, Arc Flash Hazard Analysis and Safety Labeling, Norfolk, Virginia, 2013 to 2016. Mr. Liles assisted in the arc flash analysis and evaluations for the Moores Bridges WTP. His role pertained to the mapping and modeling of the entire medium voltage and low voltage distribution for the 108-mgd WTP. Electrical Engineer, Citico Station – Phase 1B and Process Wastewater Upgrades, Tennessee American Water, Chattanooga, Tennessee, 2013 to Present. Mr. Liles is providing the electrical design and construction services for this fast-track project. The scope includes the design of a multi-level industrial facility building for dewatering surface water sludge, and additional support structures, including equalization and mixing basins and several pump stations, as well as modifications to existing structures and processes. Mr. Liles is responsible for completing the electrical design for these upgrades, including power distribution, lighting, grounding, and process motor control. Additionally, his responsibilities include technical memorandums and master planning coordination with the electric utility for the treatment plant. The project consists of a low voltage distribution switchboard, variable frequency drives, emergency systems design, lighting, specifications, and modifications to existing medium and low voltage distribution equipment.

Electrical Engineer, Jerry Sellers Water Reclamation Facility (WRF)–BNR Process Improvements Project, Cocoa, Florida, 2012 to 2016. Mr. Liles is providing the electrical design and construction services for the Jerry Sellers plant. The scope includes the design of upgrades to the processed blower air for aeration, the conversion of an existing aeration basin to an equalization basin, the addition of an equalization pump station, and the associated electrical modifications required. Mr. Liles is responsible for completing the electrical design for these upgrades, including power distribution modifications to four motor control centers, lighting, grounding, and process motor control.

Electrical Engineer, Lift Station No. 1 Improvements, Cocoa, Florida, 2012. Mr. Liles provided the electrical design for the City of Cocoa’s Lift Station No. 1. The scope included the evaluation and replacement of the existing wet well/dry well lift station with a wet well submersible lift station. Mr. Liles was responsible for completing the electrical evaluation, including analysis of the station in regards to NFPA 820. The electrical design for the pump station included coordination with the utility, lift station control panel, emergency generator and automatic transfer switch, process motor control, and provisions for phasing during construction.

Electrical Engineer, Stormwater Pump Station No. 4 Improvements, City of Norfolk Department of Public Works, Norfolk, Virginia, 2012 to 2016. Mr. Liles is providing the electrical design and construction services for the City of Norfolk’s stormwater pump station. The scope includes the evaluation, rehabilitation, and upgrade of the existing stormwater pump station. Mr. Liles was responsible for completing the electrical evaluation, including analysis of the station in regards to NFPA 820 and bringing the pump station up to current NEC compliance. The electrical design for the pump station included coordination with the utility for a new electrical service, a new motor control center, emergency generator and automatic transfer switch, lighting, process motor control, and provisions for phasing and temporary equipment during construction. Mr. Liles is currently performing the construction services for the pump station nearing completion.

Electrical Engineer, Southwest WRF – Reclaimed Water Pump Station Modifications, St. Petersburg, Florida, 2013 to 2016. Mr. Liles provided the electrical evaluation, design, and construction services for the Southwest WRF in St. Petersburg. The scope included the upgrade to an existing high service and reclaimed water pump station, adding two 450-hp pumps to an existing pump station with five 250-hp pumps. Mr. Liles was responsible for completing the electrical evaluation, including an analysis of low-voltage distribution options and scenarios for reliability, redundancy and pumping capacity. The electrical design for the upgraded pump station included coordination with the concurrent electrical designs by other firms, modifications to an existing low voltage switchboard, and modifications to the pump station and electrical buildings.

Electrical Engineer, Water Supply Wells 28W, 31W and 33W, Boca Raton, Florida, 2012 to 2014. Mr. Liles provided the electrical design and construction services for water supply wells in Boca Raton. The scope of this project included the design of the three new wells for the City’s potable water distribution. Mr. Liles was responsible for completing the electrical evaluation, including an analysis of low-voltage distribution options. The electrical design for the pump stations included coordination with the utility for a new electrical service, a low voltage distribution system connecting all three pump stations, portable emergency generator and transfer switch provisions, and process motor control.

Electrical Engineer, Central Monitor Facility, Palm Beach County, Florida, 2012 to 2013. Mr. Liles assisted with the electrical design and construction document preparation for this secure facility with communications and computer system capabilities that will be accessible to the County staff prior to, during, and after a storm/disaster event. This nearly 3,000-square foot facility is an extension of their central regional operations center, with a quarter of that space dedicated to electrical support equipment, servers, and UPS systems. The construction cost of the facility was $2 million.

Electrical Engineer, Florida Power and Light (FPL) – Fort Myers Plant Barney Oil Water Separator (OWS) Upgrade, Fort Myers, Florida, 2012. Mr. Liles provided the electrical design for this OWS project. The scope included the design of a new OWS. Mr. Liles was responsible for completing the electrical design, including modifications to an existing motor control center and panelboard, as well as conduit and wire routing through the power plant.

Electrical Engineer, Marco Island WRF – Phase III Improvements, Marco Island, Florida, 2009 to 2012. Mr. Liles assisted with design and construction support for Marco Island’s wastewater treatment facility (WWTF) electrical systems. This project continued the process improvements from Phase II. Key electrical design features included the replacement in place of an under-rated motor control center, the addition of three new motor control centers, the expansion of two other motor control centers, upgrades to the site lighting, and an interconnection from the 1,600 kilowatts (kW) backup generator at the adjacent WTP to the main switchgear. Mr. Liles assisted with the electrical design and electrical construction support.