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7540 Main Street
Suite 7
Sykesville, MD 21784
410-795-4626 phone
410-795-4611 fax
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David L. Pielmeier, GIS Analyst/Staff Scientist
As a Staff Scientist and GIS Analyst, Mr. Pielmeier's foremost area of
professional concentration is in the development, implementation and
management of systems for the collection, interpretation and portrayal of
multi-dimensional and multi-platform digital site data. Mr. Pielmeier is
accomplished in producing, using, interpreting and critiquing scientific
work product using Geographic Information Systems (GIS), including complete
proficiency in the use of ArcView and ArcGIS. In 2005, Mr. Pielmeier
co-authored a guest feature column for the Carroll County Times on the
application of GIS to water resources projects. The entire article is
available here.
One important specialization for Mr. Pielmeier is subsurface evaluations in support of existing and proposed groundwater discharges. Such projects include conventional septic discharges, as well as shallow and surficial land application projects by spray irrigation, slow-rate and overland flow. On such projects, Mr. Pielmeier helps to design and execute field evaluations of the soil and hydrologic regimes, including assisting in the testing of the assimilative capacity of soils in accordance with documented regulatory standards.
Mr. Pielmeier also supports ALWI work in permitting wastewater systems utilizing both conventional and innovative disposal methods. Mr. Pielmeier is proficient in soil infiltration capacity tests, percolation tests and mounding studies. He is adept in the deployment and use of field-testing equipment (e.g., infiltrometers, tensiometers, hook gauges, etc.), and in the interpretation of the data collected. Collaboratively with other ALWI scientists and outside design professionals, his work is instrumental in achieving client objectives to full regulatory agency satisfaction. He is fully conversant in the present land application, soil evaluation, and groundwater discharge regulations and guidelines throughout the Mid-Atlantic.
Other technical duties include a wide range of hydrogeologic and soils-related fieldwork and computer-aided analyses. To date, his experience includes construction oversight, field and laboratory evaluations of soil properties, fracture trace analysis, well drilling oversight, site characterization, aquifer pumping tests, water and soil sampling, data reduction and report preparation.
Education:
B.S.: Department of Geography/Earth Science, Shippensburg University - Concentration: Geo-environmental Studies
Prof. Training and Certifications:
GIS Certificate - Shippensburg University
Relevant Professional Experience
GIS Application to Water Resources:
- Used GIS to portray spatial relationships between topographic features, mapped soil series, existing and proposed disposal areas, excavation and infiltrometer test sites, and the results of groundwater mounding projections as digital water level contour maps.
- Prepared GIS maps showing fracture traces and recommended drilling locations in support of state-funded hydrogeologic evaluations in support of small water systems throughout rural Pennsylvania.
- Prepared maps and interpretive cross-sections showing the results of groundwater flow models. Prepared illustrations of the potential for adverse well interference and water supply impacts in a confined, multi-layer coastal plain aquifer system.
Supporting Environmental Field Experience:
- Collected water quality and groundwater level monitoring data for an existing spray irrigation facility. Interpreted time-dependent trends in various parameters over the history of spraying operations. Offered recommendations to help guide expansion plans; assisted in permitting coordination.
- Performed Phase I Environmental Site Assessments and Transaction Screen reports in accordance with requisite American Society for Testing and Materials standards.
- Performed single-and double-ring infiltrometer tests, long-term groundwater monitoring, mounding evaluations, nitrogen loading assessments and hydrologic balance calculations to support groundwater discharge permitting in both fractured bedrock and coastal plain hydrologic settings.
Other Staff Profiles:
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