Bilyeu Hydrogeological Consulting

Qualifications

• B.S. in Geology, University of South Alabama, Mobile, Alabama, United States

• California Professional Geologist #9351

• California Certified Hydrogeologist #1061

• NGWA Certified Groundwater Professional #4016962

• California Qualified Stormwater Pollution Plan Developer #27447

• California Qualified Stormwater Pollution Plan Practitioner #27447

Affiliations

• American Groundwater Trust

• Orange County Water Association

• Association of California Water Agencies

• American Water Resources Association

• Groundwater Resources Association of California

• Orange County Water District Advisory Committee

• Nation Groundwater Association

• South Coast Geological Society

• Utah Geological Association

• Society of Economic Geology and Palaeontology

• Geological Society of America

• Sigma Chi Alumni Association/Orange County Affiliate

• Sigma Gamma Epsilon

Publications / Presentations

• E. Bilyeu, K. Murdock, M. Wuttig. Development of Conceptual Site Models in Complex Groundwater Basins using Rockworks and GIS Platforms. CH2M Hill Hydrogeological Community of Practice, 19 May 2016, Los Angeles, CA, Online Technical Presentation.

• E.Bilyeu. Geology, Hydrogeology, and Hydrostratigraphy of the Las Posas Valley Basin in Ventura County, CA. FCGMA, 11 February 2016, Oxnard, CA, Stakeholders Meeting.

• D. Allison, E. Bilyeu, S. McGilberry. Geology of Lay Dam, Alabama, 7.5’ USGS Quadrangle. 1:24,000. USGS, 2009

• D. Allison, E. Bilyeu, H. Phillips. Geology of Ozan, Alabama, 7.5’ USGS Quadrangle. 1:24,000. USGS, 2010

Eros Bilyeu is a licensed Professional Geologist and Certified Hydrogeologist in California with extensive experience conducting hydrogeological investigations and water resources studies across California, New Mexico, Texas, Oklahoma, Alabama, Mississippi, Georgia, and Puerto Rico. He is also a Qualified Storm Water Pollution Prevention Plan Developer and Practitioner (QSD/QSP), and a Certified Groundwater Professional (CGWP) through the National Groundwater Association.

Mr. Bilyeu began his career in Alabama mapping USGS quadrangles under the STATEMAP/FEDMAP/EDMAP programs. He later joined CH2M Hill, where he supported federal and municipal clients—including NASA, the Navy, the Air Force, and EPA Response Action Contracts (RAC) in Regions 4, 6, and 9—working on numerous Superfund and National Priorities List (NPL) sites.

Mr. Bilyeu has been involved with California’s Sustainable Groundwater Management Act (SGMA) since its inception in 2014, developing one of the first hydrogeologic models for a Groundwater Sustainability Plan (GSP). He specializes in:

• Aquifer Storage and Recovery (ASR) well siting, design, and evaluation

• Managed Aquifer Recharge (MAR) project planning

• Potable supply well design and rehabilitation

• Groundwater flow modeling (conceptual and numerical)

• Well and aquifer testing

• Groundwater budgeting and safe yield assessments

• Agency and stakeholder presentations

He has led efforts for Metropolitan Water District member agencies such as Eastern Municipal Water District and Calleguas Municipal Water District, and contributed to ASR and modeling updates for Fox Canyon and Grimes Canyon aquifers in Ventura County.

While at CH2M Hill, Mr. Bilyeu collaborated with Dr. John Cherry (University of Guelph/Waterloo) and local experts in Ventura County. His projects included:

• Characterizing fractured turbidite units at the Santa Susana Field Laboratory

• Karst aquifer investigations at NASA Marshall Space Flight Center

• Groundwater resource development in rural communities across California, Texas, and New Mexico

Mr. Bilyeu is experienced working in rural communities, specifically in California, Texas, and New Mexico with water supply investigations and developing hydrogeological conceptual models to help bolster the water supply and future water supply.

Bilyeu Hydrogeological Consulting Specializes In:

Water Supply and Recharge:

• Potable Groundwater and Surface Water Supply (Conjunctive Use)

• Managed Aquifer Recharge (MAR)

• Aquifer Storage and Recovery (ASR) – siting, design, and optimization

Well Services:

• Production and Monitoring Well Design, Rehabilitation, and Modification

• Well Installation – Management, Inspection, and Testing

• High-Resolution Hydrogeologic Characterization

• Well and Aquifer Testing and Analysis

Modeling and Planning:

• 3D Conceptual and Numerical Modeling (Aquaveo GMS, Waterloo, Leapfrog)

• Safe Yield and Sustainable Yield Analysis (Local and Basin Scale)

• SGMA and GSP Development

• Water Rights (California and Oregon)

Contaminant Hydrogeology and Environmental Investigations:

• Site Characterization (SC), Remedial Investigations (RI), Human Health Risk Assessments (HHRA)

• NAPL, landfill, and UST/LUST evaluations

• Phase I and II Environmental Site Assessments (ESAs)

• Surface Water, Soil, Sediment, and Groundwater Investigations

• Long-Term Monitoring and Hydraulic Evaluations

Field Tools and Data Acquisition:

• Borehole and Surface Geophysical Surveys (NMR, TEM)

• Seismic and Petrological Characterization

• Logging and Sampling Methodologies

• Engineering Feasibility and Cost Analysis

Mr. Bilyeu is highly experienced in water supply and ASR well siting, and best practices for for siting managed aquifer recharge sites using:

• Borehole and surface geophysical investigations (NMR and TEM technologies, borehole geophysics, etc.);

• Seismic surveys;

• Petrological characterization;

• Evaluating potential well sites (well siting);

• Engineering cost and evaluations;

• Updated technologies and regulations;

• Numerical flow modeling basin interpretation and modeling;

• Practical drilling operations;

• Various subsurface logging operations; and

• Sampling and custody methods.

Mr. Bilyeu is experienced with designing computer systems, software, database administration (BEDMS, SQL, Access), latest borehole tools and loggers, and using languages with geospatial software and modeling applications within large groundwater basins, federal and state environmental and contamination fate and transport site investigations, water supply investigations.

Mr. Bilyeu also has experience with oil/gas exploration/mapping of highly deformed, regional shallow dip reservoirs in the Gulf Coast basins, and mineral/resource/land evaluations.