Alessandro Hnatt

Senior Scientist
Alessandro Hnatt, CEO of ADH Environmental
Career Summary: 

Mr. Hnatt is founder and president of ADH and has over 30 years experience performing complex environmental investigation programs. In 1988, Mr. Hnatt began his career with The MARK Group, Engineers & Geologists, Inc. performing hydrogeologic, remedial investigation/feasibility studies, solid waste assessment and geotechnical projects throughout central and southern California. He served as a senior project scientist for Kinnetic Laboratories, Inc. from 1993 until 1997, where he managed sediment dredge reuse/disposal studies, several large-scale industrial and municipal National Pollutant Discharge Elimination System (NPDES) Phase I programs, and water quality special studies throughout California. Since founding ADH in 1999, he has primarily served as a principal scientist overseeing a wide range of environmental investigations and monitoring projects. In addition to managing day-to-day operations of ADH, Mr. Hnatt’s responsibilities include business development, develop and perform formal presentations, prime and subcontract negotiations, project cost estimating, allocation/assignment of staff resources, attention to identifying project cost saving measures, and ensuring client satisfaction.

Technical Expertise

Stormwater and Water Quality

Since 1993 Mr. Hnatt has managed and performed numerous stormwater and water quality monitoring projects and special studies throughout California. Clients have included the Department of Defense, municipalities, commercial industry, utility providers, port districts, transportation corridor (Caltrans), Native American tribes, research institutions and private stakeholders. Projects have been performed in compliance with US Environmental Protection Agency (EPA) Clean Water Act Section 106 requirements, State Water Resource Control Board waste discharge requirements (WDRs), NPDES Phase I and II permitted projects, and special receiving water quality studies. He has overseen NPDES Phase I and II projects performed for statewide, regional, group and individual permittees often requiring development, revision and/or implementation of respective Stormwater Pollution Prevention Plans, structural and programmatic Best Management Practices evaluations, and development of creative monitoring solutions to address client’s specific needs.

Sediment Dredge Reuse and/or Disposal

For more than three decades Mr. Hnatt has coordinated and conducted sediment dredge material characterization studies throughout California. Projects have been performed in coordination with, respect to and/or reviewed by the following: U.S. EPA Region 9, SWRCB; respective Regional Water Quality Control Board (RWQCB) WDRs; Dredged Material Management Office (EPA, San Francisco Bay RWQCB, Bay Conservation and Development Commission, and California Department of Fish & Wildlife); National Oceanographic and Atmospheric Administration; and the California Coastal Commission. Mr. Hnatt has coordinated and conducted these studies for the US Army Corps of Engineers San Francisco and Sacramento districts at numerous marinas, navigable waterways and the San Francisco Deep Ocean Disposal Site; port districts throughout California; and at several U.S. Navy facilities.

Project Management

For these projects, Mr. Hnatt has been responsible for project management and execution of all project related activities. He has written quality assurance project plans, sampling and analysis plans, technical data reports on physical, chemical and biological analytic, and toxicological test results, operation and maintenance manuals; performed quality assurance and quality control and data validation; and, served as senior editor of technical data reports; performed formal presentations and training seminars; he has participated in discussion groups, provided technical litigation support; technical guidance; and, served as client and regulatory agency liaison.

Areas of Proficiency: 
  • Industrial, Municipal and Transportation Corridor NPDES I and II Permitted Projects
  • Storm Water Best Management Practice (BMP) Effectiveness Study Design, Testing & Evaluation
  • Stormwater Pollution Prevention Plan (SWPPP) Implementation
  • Sediment Dredge Materials Re-use/Disposal Studies, Reporting and Consultation
  • Quality Assurance and Quality Control
  • B.A., Physical Geography, University of California at Santa Barbara, CA; 1984
  • A.S., Commercial Pilot, College of San Mateo, San Mateo, CA; 1981
Starting Year of Employment: 
1 999