[« BACK TO SOLUTIONS]

PUMPING AND PIPELINE SOLUTIONS

• Conveyance Solutions Studies
• Pipeline Routing Studies
• Water Booster Station Design
• Sewer Lift Station Design
• Force Main Design
• Large Diameter Pipeline Design
• Odor Control Solutions

SAMPLE PROJECTS:

Black Mountain Sewer Corp. – Lift Stations and Pipeline Modifications
The Town of Carefree is a small community of residential resort communities, custom homes and one-of-kind southwestern art galleries and shops set within the lush landscape of the Sonoran Desert and bordered on the north by the Tonto National Forest, a sweeping wilderness area that showcases the great Arizona frontier in its most natural state, and making Carefree one the most desirable communities in Arizona.  The Boulders Resort Community is an exclusive residential community at the southern end of town, which is home to the world famous Boulders Golf Resort.
 Algonquin Water Services affiliate company the Black Mountain Sewer Corporation (BMSC) provides wastewater treatment for the town and Boulders community at their Boulders Water Reclamation Facility (plant) a 120,000-gpd extended aeration. The treated effluent from the plant is used for golf course irrigation.  Residents of the Boulders and the nearby Carefree Estates complained for years about odors from the plant and several lift stations, and petitioned the Arizona Corporation Commission (ACC) for relief.  In response to the residents the ACC directed BMSC to correct problems causing the odors no later than May 31, 2007.

In response to the ACC directive Algonquin Water asked MES to provide program management, design, and construction engineering services to modify the sewer infrastructure to remove the odors.  The project included the upgrades of two lift stations to improve pumping capacity and reliability, removal of one lift station (replaced with a 500-foot bypass gravity sewer), and installation of approximately 3,000 feet of air-jumper pipelines to mitigate odors generated by hydraulic conditions.  In addition to managing the design and a team of supporting consultants, MES provided extensive coordination with the Town of Carefree and multiple stakeholders including the local HOAs, made presentations to the town council and HOA boards, provided press releases, attended neighborhood meetings, and handled complaint resolution during construction. MES was responsible for developing the proposed improvement scenarios prior to design and construction, design of all the facilities, construction contract procurement coordination, and inspection and coordination during the construction period.

[BACK TO TOP]

Salt River Project – ISB Building Sewage Lift Station Evaluation, Design and Construction Services
In 2006 SRP retained MES through a contract with DHMW, LLC to develop alternatives for modifying the ISB Sewage Lift Station that conveys waste streams from its ISB facility to a nearby sanitary sewer.  The lift station was designed and constructed in the early 1980’s as a fiberglass reinforced plastic wet well housing three submersible sewage pumps.  The existing station had reliability problems and required SRP’s maintenance personnel to enter the wet well to maintain the pumps.  Because the station sits in an alcove less than 20-ft from the eight story tall ISB building, the location severely limited options for replacing the existing facilities.  MES developed alternatives for modifying the station to allow easy removal of the pumps, and then recommended that the station modifications include replacement of the pumps with submersible chopper pumps.  Based on this recommendation, SRP asked MES to provide engineering services for the design and construction phases to complete the modifications.  MES prepared technical specifications and construction staging plans for the removal and replacement of the existing equipment (pumps, piping and valves) and installation of a new corrosion-resistant wet well access cover.  MES was also involved with recommending a repair strategy for a leak in the wet well side wall using fiber-reinforced fabric and epoxies. MES reviewed the design calculations for the repair, oversaw the installation and hydrostatic testing, and issued a memorandum of completion at project close-out.

[BACK TO TOP]

Martinez Lake Booster Pumping Station - Shepard Water Company, Yuma AZ
Shepard Water Company’s Martinez Lake booster pump station for the water system was badly under sized and not able to meet system demand on weekends, the lake’s peak demand periods nor was the system able to provide fire flow.   Shepard retained MES to design a new 500- gpm booster pumping station that would be able to keep up with system demands during peak periods and provide fire flow.  A Grundfos multi-pac packaged booster pumping station was selected.  The station is a fully automated booster station, equipped with variable speed drives that allow the booster pumps to meet the full range of pumping conditions for the lake community while maintaining steady system pressure.

[BACK TO TOP]