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CONSTRUCTION SERVICES SOLUTIONS

• Facilities Construction Management
• Construction Engineering Services
• Startup & Commissioning Services
• Project Mitigation Services
• Resident Engineer Services

SAMPLE PROJECTS:

Algonquin Water Services: LPSCO Palm Valley WRF Upgrade
Litchfield Park is a planned residential community, two miles north of I-10 and 16 miles west of central Phoenix located in Maricopa County.  The Litchfield Park Service Company (LPSCO), an affiliate company of Algonquin Water, provides potable water and wastewater treatment services to residents of Litchfield Park and Goodyear.  LPSCO owns and operates the Palm Valley Water Reclamation Facility (WRF) which is a 4.2-mgd wastewater treatment plant that produces high quality recycled water (class A+).  The recycled water is used to irrigate the golf courses and greenbelt areas within the service area. 

The Palm Valley WRF was designed to be a completely contained facility designed to look like a high end office complex with lush desert landscaping along the street side of the facility.  Even though the facility had an award winning façade, the WRF was plagued with fugitive odors.  Complaints from nearby residents began within months of the plant start up.  After several studies and upgrades of the odor control system, LPSCO was directed by the Arizona Corporation Commission, the state regulatory agency to fix the odor problem by December 31, 2007. In March of 2007, LPSCO selected MES to design process performance enhancements and redesign the odor control system to solve the odor problems that had been plaguing the plant since its start-up in time to meet the ACC deadline. 

MES worked closely with LPSCO’s CM at Risk Contractor and Aerisa Air Technologies to design modifications to the plant’s wet scrubber and implement a full scale pilot of the Aerisa ion-exchange odor control system for the Headworks and Solids Handling buildings.  The pilot unit was installed and fully functional one week ahead of the deadline.  The new ion-exchange odor control equipment completely eliminated odors within the Headworks and Solids Handling building stopping the release of fugitive odors.

MES design services also implemented other enhancements to improve the process reliability including adding new influent screens and UV disinfection equipment, installing a temporary centrifuge to augment the existing unit, converting the sludge storage unit into a fourth SBR, upgrading and replacing the process electrical system, and implementing of a new process SCADA control system.

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Global Water Resources: West Area Well Sites Arsenic Treatment System Implementation
Global Water, through its wholly-owned subsidiaries the Water Utility of Greater Tonopah (WUGT) and the Water Utility of Greater Buckeye (WUGB), owns three Water Distribution Centers (WDCs) that required well-head arsenic treatment.  For this project MES was retained by Global Water Resources to provide construction management and inspection services for the construction of the media-based arsenic treatment systems.  During construction MES was responsible for inspection, start-up, commissioning and validation sampling.  Specific tasks included witnessing pipeline and vessel pressure tests, reviewing vessel paint quality, inspecting rebar placement, witnessing well pump replacement activities and coordinating with the well driller, and developing an arsenic sampling protocol and performing validation sampling. Throughout the project MES worked closely with Maricopa County Environmental Services Department (MCESD)  to coordinate all start-up and commissioning tasks and obtain expedited regulatory approval.

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Arizona-American Water Company: Anthem Water Campus Wastewater Treatment Plant Phase 3 CM
Anthem is a Del Webb planned suburb 34 miles north of downtown Phoenix that opened in 1998. Featuring sweeping mountain vistas, golf, hiking and other recreational opportunities, Anthem has been described as one of the best places to live in Arizona by Phoenix Magazine and as such the community has grown substantially since its’ founding and now has an estimated population of about 40,000 people.  Arizona-American Water Company (AAWC) is the private utility that provides potable water and wastewater treatment to Anthem.  Wastewater is treated at the Anthem Water Campus using membrane bioreactors (MBR) to provide high quality reclaimed water (class A+) which is used to irrigate the community golf courses, green belts and the landscape areas of the local streets and for recharge.

For this project MES served as a Subconsultant to Heerup Engineering for construction administration and site inspection assistance services.  The project involved an upgrade of the 1.5-mgd membrane bioreactor wastewater treatment facility to a 3.0-mgd facility.  The construction of the $6.5 million upgrade included a retrofit upgrade of the existing MBR system and the replacement of the chlorine disinfection system with an in-line UV disinfection system.  It also included an upgrade to all major unit processes, improvements to the headworks process, and expansion of the odor control system.  CM services included resident inspections, construction management, start-up services, and operations and maintenance manual compilation.

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Fairfax Water Authority: Griffith WTP Startup Testing and Commissioning Assistance Project
MES was brought in by St. Paul Travelers to provide professional engineering services to the construction contractor, Cachman, Inc. for assistance in completing the project.  The Griffith Water Treatment Plant is a new 120-MGD facility in Lorton, Virginia owned by the Fairfax County Water Authority.    When MES was hired the facility was 90% complete but millions of dollars over budget and nearly two years behind schedule.  MES was hired to provide project leadership, work with the County and their Engineer, and help develop a plan to finish the construction and commission the facility.  MES was responsible for managing the functional testing of the major treatment systems, providing technical assistance on equipment installations, and organizing the commissioning team and start-up program.  The plant was successfully commissioned in May 2006.  

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