Associate Hydrogeologist
Overview
David Baumgarten is a licensed hydrogeologist with over 20 years of experience providing hydrogeology services in the Pacific Northwest. He has worked on a variety of hydrogeologic projects ranging from single-family residences to master-planned communities of over 500 acres. In addition, he has provided hydrogeologic services for new and redeveloped retail projects, mixed-use communities, and gravel mine operations. Mr. Baumgarten has a thorough understanding of state, county and city level stormwater regulations regarding infiltrations, hydrogeologic site characterizations, seasonal high groundwater level determinations, low-impact development stormwater evaluations, groundwater mounding analyses beneath stormwater facilities, evaluations of soil properties for water quality treatment, and potential for off-site impacts from the infiltration of stormwater.
His experience and project management approach to hydrogeologic design issues enables him to provide his clients with cost-effective, practical solutions to evaluate feasibility and complete testing and design of stormwater infiltration facilities.
By relying on his vast field and design expertise and relationships with county and city personnel, Dave is able to offer innovative and practical approaches and solutions to stormwater infiltration management. In addition, Mr. Baumgarten has experience with dewatering analyses, and specializes in wellhead protection studies; 3-dimensional groundwater modeling (MODFLOW); groundwater level database management and interpretation; seawater intrusion evaluations; construction dewatering; aquifer testing, including stepped-rate and constant-rate pumping tests; designing water supply wells; and production well design and installation. His project management background also includes preparing and monitoring project proposals, budgets, and schedules, as well as providing field and staff oversight, negotiating site characterization work plans, and developing solutions for complex sites with state, county and city entities.
Education
| School & Location | Degree | Year |
|---|---|---|
| California State University Sacramento | B.S. in Geology | 1994 |
| Boise State University | M.S. in Geology/Hydrogeology | 1997 |
Other Qualifications
- WA State Licensed Hydrogeologist (LHG)
- WA State Licensed Geologist (LG)
Infiltration Assessment/Ground Water Mounding Analysis, Snoqualmie Valley Athletic Association-North Bend Athletic Facility, North Bend, Washington
David oversaw the installation of monitoring wells to monitor water levels and determine seasonal high groundwater levels. He also conducted Pilot Infiltration tests and EPA Falling Head Infiltration tests, per King County protocol, to provide long-term design infiltration rates for a stormwater infiltration trench and field underdrain infiltration surface. Utilized MODFLOW to complete a groundwater mounding analysis for the combined infiltration trench and field infiltration surface.
Infiltration Assessment River Run Apartments, North Bend, Washington
At this Site, David conducted Pilot Infiltration Tests to provide long-term design infiltration rates for eight infiltration galleries and six bioswales proposed to manage the stormwater at the site. He oversaw the installation of two groundwater monitoring wells and conducted wet season groundwater level monitoring, which included hand measurements and the installation of pressure transducer/datalogger units to document the seasonal high groundwater levels.
Level II/Level II Hydrogeologic Assessment, Alexan Central Park Apartments, Redmond, Washington
Mr. Baumgarten prepared a Level I and Level II Hydrogeologic Assessment per City of Redmond protocol for the Alexan Central Park Apartment site which is located in the City of Redmond Wellhead Protection Zone 2. The assessment included an evaluation of the geologic and hydrogeologic framework at the Site, including seasonal fluctuations in groundwater levels, groundwater flow direction and gradient, water level and water quality data from wells in the vicinity of the Site. The Level II assessment included an evaluation on the potential effects of the project on groundwater quality and quantity, predictive evaluation of contaminant transport based on potential releases to groundwater, impacts to groundwater recharge, and a plan for implementing “Protection Standards During Construction”, which included a spill plan.