HYDROGEOLOGY

 Hydrogeologic Evaluation/Critical Aquifer Recharge Area Delineation, Stevens County, Washington

Gene conducted an evaluation for Stevens County to assist with Growth Management and the delineation of Critical Aquifer Recharge Areas (CARA) in Stevens County.  The project includes a Best Available Science Review of aquifers throughout Stevens County, and a hydrogeologic evaluation of the Sheep Creek Subbasin to delineate the CARA designation within the watershed.  Project involved the identification of aquifers, assessment of aquifer characteristics, determination of hydraulic continuity of aquifers, location of current uses of aquifer, development of CARA rating, and delineation of CARA boundaries.  Project also involved assisting with the determination of mineral lands within the county, and assisting with writing of hydrogeologic/geologic sections of the Comprehensive Plan and the Draft Environmental Impact Statement.

Hydrogeologic Evaluation of Bedrock Aquifer Flow in Underground Mining Facility, Ferry County, Washington

Gene conducted a bedrock aquifer evaluation to develop a conceptual model of the potential static water conditions throughout the mine shafts of an underground mine.  The project was conducted in order to assist with a determination if static water conditions would rise to a level above existing adit entrances for the mine, causing a surface water discharge of the groundwater.  The project encompassed mapping the fault zones in the facility of the mine, developing a regional groundwater flow evaluation from existing data, and applying known seepage rates in the mine facility to potential groundwater contributions.  An estimate was made of the potential elevation of static water conditions in order to assist with engineering requirements for abandonment of the facility. 

Hydrogeologic Review of Storage Facility, Chewelah, Washington

Gene conducted a review of hydrologic and hydrogeologic data to determine if the constructed  33-acre lake facility could maintain water elevation for a fly fishing business, while still capable of maintaining an instream flow permit criteria at the outfall of the lake.  The review consisted of determining lake level declines during permit required releases to determine if potential harm would occur to the fish population in the lake. 

Western Nuclear, Sherwood Mine, Hydrogeologic Evaluation/Water Resource Review

Wellpinit, Washington

Gene has conducted closure proceedings on an impacted aquifer for a mine facility near Wellpinit, Washington.  He prepared several presentations for meetings attended by the private mining company, EPA, Bureau of Indian Affairs, and the Spokane Tribe.  After presenting technical data for characterization of the aquifers and water resources on the southern area of the reservation, Gene facilitated the meetings in order to achieve a common agreed upon solution to proceed with closure of the mining facility and allow for transfer of the property back to the Spokane Tribe.

Iowa Beef Processors, Hydrogeologic Evaluation/Land Use Application

Wallula, Washington

Project manager for a hydrogeologic investigation at beef processing facility in Wallula, Washington relevant to land application permit.  Application submitted for use of wastewater in processing facility to be used for land application purposes such as on crops in surrounding areas.  Study revealed series of shallow perched zones above primary aquifer located at depths up to 200 feet below grade.  Perched aquifers determined that land application in these areas may adversely affect groundwater quality.  However, most area within proposed permit zone contained groundwater at depth in aquifer containing low transmissivity values.  Aquifer beneath valley drainage adjacent to permit zone determined to be higher yield due to stratigraphic facies changes resulting in ability of aquifer to transmit applied wastewater to Columbia River.

Morgan Stanley, Washington Power Generation Facility, Hydrogeologic Investigation

Frederickson, Washington

Gene provided hydrogeologic services to investigate the groundwater beneath a proposed power generation facility to be constructed in Frederickson, Washington.  Project tasks included the design and installation of eight recovery and monitoring wells, conducting a step drawdown and constant rate pump test, and conducting aquifer modeling to determine aquifer parameters.  Study was utilized for permitting of facility over the Clover Creek aquifer recharge area.  Additional tasks include preparation of detailed hydrogeologic report, and development of a groundwater-monitoring plan for permitting of the facility.

Colville Confederated Tribes, Hydrogeologic Investigation

Elbow Lake, Washington

Gene provided hydrogeologic services to investigate the groundwater and surface water issues surrounding a 52-acre lake that lost over 750 acre-feet of water in 2001, causing the lake level to drop over 15 feet.  Lake conditions resulted in only two small “ponds” in the former lake area.  The project involved constructing a conceptual model of the groundwater-surface water interactions in the drainage basin to determine the cause of the lake drying up.   In addition, a geoprobe investigation was completed in order to construct the conceptual model.  The project was completed in order to determine if mitigation could be conducted to protect the lake, or if management practices should be enacted to manage the fisheries of the lake for future events.

Time Oil Company, Bremerton Jackpot, Hydrogeologic Evaluation

Bremerton, Washington

Gene served as the technical lead for a hydrologic study for valley in Bremerton, Washington in order to determine amount and velocity of underflow through impacted site.  Site located approximately ¼-mile upgradient of salmon spawning area. Study revealed that high precipitation rates within steep valley floor would result in elevated groundwater velocities.  Recommendations from study resulted in immediate action for installation of groundwater control systems in order to protect impact to salmon habitat.

PO Box 28755, Spokane, WA 99228       Ph/Fax: 509-468-4876    Cell: 509-953-9395  Email