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AUTHORIZATION TO ENTER INTO AMENDMENT NO. 1 TO THE PROFESSIONAL SERVICES AGREEMENT WITH HDR ENGINEERING, INC., FOR ASSESSMENT OF THE WEST AREA WATER RECLAMATION FACILITY RECHARGE STORAGE
Staff Contact: Craig Johnson, P.E., Director, Water Services
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Purpose and Recommended Action
Recommendation
This is a request for City Council to authorize the City Manager to enter into Amendment No. 1 of the Professional Services Agreement C-10515 with HDR Engineering, Inc., (HDR) for assessment of the recharge options available for the West Area Water Reclamation Facility. This amendment provides for detailed analysis of the hydrologic recharge capabilities of the Heroes Park site; and increases the original agreement compensation by $54,100.
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Background
The West Area Water Reclamation Facility (WAWRF) commenced operations in 2001. This facility has a capacity of processing 11.5 Million Gallons per day (MGD) of wastewater. Currently it treats approximately 5.5 MGD but it is expected to see a gradual and steady increase of flow due to growth in the west area of the city. As part of the treatment process, Class A+ effluent is discharged from the facility. The majority of this reclaimed water is sent to Glendale's West Area Aquifer Recharge Facility (ARF) and the New River Agua Fria Underground Storage Project (NAUSP) managed by SRP. A small portion of the reclaimed water produced is delivered to reuse customers.
In 2010, the city developed a master plan for the West Area Water Reclamation Facility. The 2010 study examined wastewater treatment demands, and evaluated potential recharge options. The study determined there would be a need for additional recharge capacity in the future, and identified the Western Area Regional Park (now known as Heroes Regional Park) as a potential location for a new recharge facility. The 2010 study recommend a series of individual wells as the preferred method of recharge at the park site.
In December 2015 HDR was c...
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