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Please log into the webinar 15 – 30 minutes before the start time.

Friday, June 14, 2024
9:00 am – 4:00 pm EDT


Maryland Drainage Rights
Presented by: Anthony Gorski

  • Maryland common law on surface/storm water drainage from or over land
  • Laws and regulations addressing surface/storm water drainage from or over land
  • History of drainage easements
  • Private drainage easements:
    • Legal rights and responsibilities for draining surface water
    • Rights of dominant and servient estate rights and obligations
    • Common law drainage easements
  • Public drainage easements
    • Creation
    • Maintenance and restrictions
  • Resolving drainage disputes

New and Developing Trends in Maryland Environmental and Land Use Law Affecting Waters of Maryland
Presented by: Peter Hershey

Maryland Riparian/Littoral Boundaries and Access Rights
Presented by: Jeff Hershey

  • Riparian rights Erosion, accretion, avulsion
  • Erosion control improvements (revetments, living shorelines, bulkheads)
  • Principles of boundary location for navigable rivers and lakes

Maryland Wetlands and Waterways Regulations Affecting Land Owner Rights
Presented by: Timothy R. Henderson

  • Wetlands and waterways
    • Tidal and non-tidal wetlands
    • Streams and floodplains
  • Ditches and other non-navigable waters
    • Supreme Court Sackett Decision’ defining waters of the US
  • Maryland critical areas law
    • Overlap of land use and water regulation

Maryland Groundwater Rights and Access
Presented by: Jeffrey Moore

  • Groundwater fundamentals
    • Definition
    • Hydrogeology
  • Maryland water protection laws
    • Groundwater appropriation
    • Permitting
    • Enforcement
  • Groundwater quality protection
    • Discharges to groundwater
    • Permitting
    • Enforcement
  • Common law
  • Groundwater threats
    • Sources and contaminants
      • PFAS


Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled.

Internet connection: Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at


6.0 PDHs

Land Surveyors
6.0 PDHs

6.0 PDHs Learning Opportunity

6.0 Hour Learning Opportunity


Continuing Education Credit Information

This webinar is open to the public and is designed to qualify for 6.0 PDHs for professional engineers and land surveyors in Maryland. HalfMoon Education is an approved continuing education provider for professional engineers and land surveyors in Maryland.

This webinar offers a 6.0-hour learning opportunity for Maryland attorneys and geologists, who are not currently subject to continuing education requirements.

Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (multiple attempts allowed).

On-Demand Credits

The preceding credit information only applies to the live presentation. This course in an on-demand format is not pre-approved by any licensing boards and may not qualify for the same credits; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate.


Anthony G. Gorski

Attorney at Law Office of Anthony G. Gorski, Instructor at Johns Hopkins University

Mr. Gorski is an attorney in Annapolis, specializing in environmental, natural resources and agricultural law. He advises clients on environmental and agricultural matters, water supply and sewer capacity allocation, land use and related litigation. In addition, he represents clients litigating in State and federal courts and administrative forums, including trial and appellate advocacy.

Mr. Gorski served as an assistant attorney general representing the Maryland Department of the Environment from 1991 to 1997. In addition to his law practice, he has taught environmental law in the graduate engineering program at Johns Hopkins University for over 20 years and water resources law and policy for the University of Maryland’s Department of Agriculture and Resource Economics. He is an active speaker in legal education seminars.

Mr. Gorski earned a J.D. degree and a master of environmental law degree, cum laude, from Vermont Law School and a B.S. degree in Wildlife and Fisheries Management, with minors in Biology and Chemistry, from Frostburg University. He is admitted to practice in Maryland, before the US District Court for Maryland, and before the US Courts of Appeals for the Fourth Circuit and the Federal Circuit. He is a member of the Maryland State Bar Association (Environmental Law and Agriculture Law Sections).

Timothy Henderson

Attorney at Rich & Henderson, Instructor at Johns Hopkins University

Mr. Henderson is the co-founder and managing partner of Rich &
Henderson, P.C., which has law offices located in Annapolis and Easton, Maryland. Widely regarded as among the leading trial and transactional attorneys in his region, Mr. Henderson provides exceptional representation and support to clients throughout Washington, D.C., and surrounding areas. His main areas of practice include administrative law, business and commercial law, energy and natural resources law, environmental law and land use and zoning. Over the course of his legal career, Mr. Henderson has achieved remarkable success helping a diverse range of clients across the country with their important and pressing legal issues. He has extensive experience handling matters involving regulatory compliance of hazardous waste disposal and related violations as well as helping his clients to obtain the necessary permits and licenses they need.

In addition, Mr. Henderson has considerable experience handling environmental due diligence for mergers and acquisitions and complex real estate-related issues involving land use and zoning requirements. He has become known as an authority on environmental law, and he has gained a reputation for his efficient and cost-effective manner of helping his clients navigate the complex and convoluted process of environmental requirements needed to allow them to open their businesses or acquire land. As further evidence of his in-depth legal knowledge and leadership skills, Mr. Henderson serves as an instructor of environmental law and business law courses with the Johns Hopkins University Engineering for Professionals Program.

He has also conducted numerous lectures and continuing legal education seminars across the nation on a variety of legal topics related to real estate law, land development and other subjects, and he has served as Chair of the Maryland State Bar Association’s Environmental Law Section. A 1976 graduate of the State University of New York at Purchase with a Bachelor of Arts in environmental science. In 1980, Mr. Henderson received his Master of Science from the Nelson Institute of Environmental Studies at the University of Wisconsin-Madison his Juris Doctor from the University of Wisconsin Law School.

Jeff Hershey

Associate Attorney Rich & Henderson, P.C.

Mr. J. Hershey is active in Rich & Henderson’s transactional, regulatory, and litigation practices, including with respect to environmental, administrative, business, zoning and land use, and contracts law. Prior to joining Rich & Henderson, He served as a judicial law clerk to the Honorable Ronald B. Rubin, Circuit Court for Montgomery County, Maryland. As a judicial law clerk, he regularly worked on cases in the Maryland Business and Technology Case Management Program. Mr. J. Hershey received a J.D. from the Antonin Scalia Law School at George Mason University in Arlington, Virginia and a B.B.A in Finance and a B.A. in History from the College of William and Mary in Virginia. While in law school, he served as a legal intern for the Securities and Exchange Commission Division of Investment Management and for the Department of Justice Civil Division. Prior to enrolling in law school, Mr. J. Hershey worked as an Information Technology auditor for Ernst & Young, LLP, in Tysons, Virginia and in Washington, D.C. He is admitted to practice in Maryland and the U.S. District Court for the District of Maryland.

Peter Hershey

Partner Rich & Henderson, P.C.

Mr. P. Hershey  practices in the areas of environmental, natural and cultural resources, land use, criminal, construction, maritime, procurement, and commercial law. He advises clients on a wide range of environmental, commercial, marine/maritime and other laws and regulations and is active in the firm’s trial and appellate litigation practice. Prior to joining Rich & Henderson, Mr. P. Hershey  served as a judicial law clerk and senior judicial law clerk to the Honorable Christopher B. Kehoe, Maryland Court of Special Appeals, and as a judicial law clerk to the Honorable Broughton M. Earnest, County Administrative Judge for the Talbot County Circuit Court. He received a B.A. in History from the College of William and Mary in Virginia, and a J.D. from the William and Mary Marshall-Wythe School of Law.

Jeffrey W Moore, P.E. , Esq.

Principal Attorney with Jeffrey W. Moore Law, LLC

Mr. Moore’s main areas of practice are Environmental, Real Estate, Business, and Construction Law. Mr. Moore advises and represents individuals and businesses in civil litigation and commercial affairs including business asset purchases and sales, materials and mining, real estate, chemical manufacturing, energy development and construction. He also advises on regulatory, permitting and litigation matters. He delivers C-level consulting services for large regional development and manufacturing groups related to CERCLA remedial actions at legacy sites, real estate transactions, asset sales, mergers and acquisitions. Mr. Moore is also the owner and Principal Engineer with D. Moore & Associates, LLC with decades of environmental engineering and earthwork construction experience. He earned his B.A. degree in Environmental Sciences from the University of Virginia, his B.S. degree in Geology and his M.S. degree in Environmental Engineering from Virginia Tech and his J.D. degree from The George Washington University Law School.

Streamable MP4/PDF Price: $349.00

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