Senior Environmental Scientist

Years of Experience: 34


  • M.S. Zoology, 1988
  • B.S. Biology, 1980
  • Atlantic & Gulf Coastal Plain Regional Supplement Wetland Delineation Training, 2009
  • Eastern Mountains & Piedmont Regional Supplement Wetland Delineation Training, 2010


  • Professional Wetland Scientist, 2018, 2013, 2009, 1995
  • Amtrak Contractor Safety Training Badge, 2015
  • DNREC Recognized Qualified Bog Turtle Surveyor, 2004-2017
  • MDNR Recognized Qualified Bog Turtle Surveyor, 2001-2017
  • PA Fish & Boat Commission/USFWS Recognized Qualified Bog Turtle Surveyor, 2012-2013
  • MBSS, Amphibian & Reptile Taxonomy Exam, Qualifying Score, 2008-2012
  • COE, Certified Wetland Delineator, 1993
  • USFWS Habitat Evaluation Procedures, 1990
  • Maryland List of Qualified Birders, 1990-2019

Highlights of Experience

David is a seasoned Senior Environmental Scientist with 32 years of experience in the assessment and management of a wide range of natural resources. Gifted as a field ecologist, David provides a unique blend of knowledge of terrestrial and aquatic resources, ability to identify and assess impacts to those resources from public and private development, excellent writing skills, and a great working relationship with clients and regulators. Highlights of David’s experience include the following:

Wetland Delineation and Impact Assessment
  • delivers in-depth experience in the identification and delineation of tidal and nontidal wetlands and waterways within the Mid-Atlantic region, employing the methodology of the 1987 U.S. Army Corps of Engineers Wetland Delineation Manual and associated guidance
  • conducts wetland functional assessments using the New England and Evaluation for Planned Wetlands methodologies
  • assesses impacts to wetlands and waterways associated with proposed development
  • prepares wetland delineation reports and wetland avoidance and minimization analyses
  • identifies potential wetland mitigation sites following detailed site search protocols
  • prepares Phase I and II wetland mitigation plans including water budgets, site grading design, and plant species selections
  • has extensive experience with and is a leading authority on Maryland SHA wetland mitigation monitoring protocols
Terrestrial Habitat and Wildlife and RTE Inventory and Analysis –
  • has specialized training and experience with the inventory and impact analysis of terrestrial habitat and wildlife, and has conducted detailed studies of forest interior dwelling bird species, the distribution and abundance of amphibians and reptiles, and vernal pool identification and species composition
  • completes forest stand delineations and assessments of forest structure, composition, and function according to guidelines of the Maryland Forest Conservation Act
  • is qualified and has conducted many rare, threatened, and endangered species surveys for a wide range of plant and animal species including surveys for the federally threatened bog turtle
  • has USFWS training in the use of Habitat Evaluation Procedures
  • is thoroughly familiar with Section 7 Endangered Species Act compliance requirements and has completed numerous field studies and impact evaluations for Biological Assessment reports as part of Section 7 consultation
Document Preparation and Regulatory Agency Coordination
  • prepares the natural resource portion of NEPA documents including background research, technical field studies, impact assessments, avoidance and minimization evaluations, document preparation, and agency coordination
  • provides natural resource input to Natural Environmental Technical Reports
  • completes wetland mitigation plans and monitoring reports
  • Chesapeake Bay Critical Area Studies
  • state and federal wetland permit applications
  • Biological Assessment reports and RTE survey reports, and coordinates with federal, state and county review agencies concerning wetland regulatory authorizations