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96 -hour pumping test, and provided data analysis and <br />preliminary design of six 24 -inch -diameter water supply <br />wells with a total design capacity of 30,000 gallons per <br />minute (gpm). We subsequently completed final well <br />design during well field construction, provided construction <br />oversight, completed well performance testing, and <br />provided overall contract administration and construction <br />oversight on behalf of the City to ensure compliance with <br />project plans and specifications, including review and <br />approval of contractor submittals and pay requests, and <br />contract close-out following substantial project completion. <br />LAI staff Eric Weber and Kelsey Mach. <br />Four Cross Ranch Hydrogeological Study; Grant County, WA. LAI assisted Four Cross Ranch (and its <br />successors) to obtain over 2,000 acres of Article 28 (905) and First Phase (909) water service contracts <br />with the Quincy Columbia Basin Irrigation District (QCBID) to develop more than 1,500 acres of center <br />pivots in Irrigation Block 91 in the northern portion of the Quincy Basin. Contract approval was <br />contingent on drainage approval from the US Bureau of Reclamation. The Bureau has deferred irrigation <br />of this area, known as the High Hill, because of the unknown impact of irrigation return flows from spray <br />irrigation on recharge to nearby Soap lake. The High Hill is a 14 -square -mile area between lower Grand <br />Coulee and Dry Coulee and directly <br />above Soap Lake. Area stratigraphy <br />w.a <br />includes the Priest Rapids, Roza, and <br />Frenchman Springs members of the Ri M•a `� -$ �.� M^. <br />Wanapum Basalt, and various N2 ~` <br />� <br />flow members of the Grande Ronde <br />Basalt. initial development of the <br />Columbia Basin Project led to <br />flooding of Soap Lake and a decrease I -w•- _ �`'� <br />in salinity. The lake is unique in that <br />it has no surface water orgroundwater outlet (all discharge is <br />from evaporation). <br />LAI was hired to provide the technical basis for drainage approval from the Bureau. This included <br />developing a regional hydrogeologic conceptual model of the area, estimating irrigation return flow <br />impacts, and developing a monitoring and mitigation plan. The project scope included reviewing existing <br />information in the Bureau's Ephrata, Washington field office library, field mapping of geologic outcrops, <br />identifying and characterizing existing irrigation wells in the coulees and the High Hill, video scan and <br />rehabilitation of select wells, and pumping tests of select wells. LAI made project presentations to the <br />QCBID and the Bureau and received tentative approval for development of the east half of Block 91 and <br />later the west half of Block 91. We are currently Implementing a 10 -year groundwater and spring flow <br />monitoring plan that includes 39 monitoring wells and 7 production wells associated with the QCBID- <br />operated Soap Lake Protective Works. Annual reports are submitted to the Bureau, QCBID, and Ecology. <br />Cedar Moraine Aquifer Characterization and Risk Mitigation; King County, WA. LAI provided <br />groundwater and geotechnical services to Seattle Public Utilities (SPU) to support management of its <br />Chester Morse Lake and Masonry Pool Reservoirs and meet requirements of the Department of <br />Ecology's Dam Safety Division. The Cedar River watershed is managed by SPU for natural resource <br />Kittitas County 0 <br />Water Banking Program Support <br />