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WATER SUPPLY SOLUTIONS

• Supply Solutions Studies
• Treatment Solutions Studies
• Facility Planning Studies
• Treatment Facilities Design
• Well Site Facilities Design
• Storage Facilities Design

SAMPLE PROJECTS:

Water Utility of Greater Tonopah /Water Utility of Greater Buckeye Water Production Facilities Upgrades 
The Water Utility of Greater Tonopah and the Water Utility of Greater Buckeye own and operate twelve online water production facilities in the west valley that required upgrades to existing infrastructure to comply with regulatory standards and Arizona Corporation Commission (ACC) requests.  Many of the water systems had insufficient well pumping, storage, or booster station capacity to serve existing customers and growing service areas.  MES was the program manager for the infrastructure upgrades project, which included specification and installation of new well pumps, booster pumps, and storage tanks.  Tasks completed for this project included a technical review of pump and storage capacity, pump selection, storage tank sizing, contractor scheduling, and construction services.  As part of the upgrades project, MES also evaluated treatment options for the five water systems that had water quality issues associated with arsenic, nitrates and fluoride.  MES provided recommendations for treatment based on evaluation of the following criteria: number of service connections, location, water chemistry, capital cost, operating cost, and future development plans.

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Water Utility of Greater Tonopah /Water Utility of Greater Buckeye Arsenic Treatment Implementation
The Water Utility of Greater Tonopah and the Water Utility of Greater Buckeye own and operate three water production facilities that required treatment for arsenic levels in the range of 11 to 13 µg/L.  MES was the program manager for this project that consisted of the addition of well-head media-based arsenic treatment systems at each site.  Required tasks included obtaining Special Use Permits (SUP) for the change of zoning necessary to add treatment units to the existing water production facilities, obtaining Floodplain Use Permits where necessary, reviewing and selecting the treatment process, assisting with design-build contractor  and equipment procurement, specifying well pumps.  Following design and procurement, MES provided construction engineering services, and completed start-up and commissioning activities in compliance with Maricopa County Environmental Services Department (MCESD) construction and operation approvals.

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Shepard Water Company: Water Storage, Well Site, and Arsenic Treatment Project
Shepard Water Company owns a well site located in the Martinez Lake Resort community in Martinez Lake, Arizona.  The groundwater at the site had been tested with an arsenic content of approximately 12 ppb.  For this project MES provided an engineering study to determine the feasibility and cost of providing well-head treatment to bring the arsenic level into compliance with the new EPA MCL limit.  The MES study became the basis for Shepard Water to qualify for funding assistance from the State of Arizona through the Water Infrastructure Financing Authority (WIFA), which MES provided assistance in developing the WIFA application.

During the evaluation MES determined that the existing water storage capacity was inadequate to provide fire flow capacity and recommended that Shepard install an additional 55,000-gallon storage tank.  MES performed a life cycle cost comparison for the two most common types of storage tanks – welded steel and bolted steel.  The life cycle comparison showed that a glass lined and coated bolted steel storage tank would require virtually no maintenance after installation.  MES then prepared the contract documents and provided construction administration and permitting assistance for the well headed arsenic removal system and new glass-lined and coated bolted steel storage tank.

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Global Water Resources: Sweetwater II Water Distribution Center Storage Upgrade, Water Utility of Greater Buckeye

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