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Surface Water Resources Information

Hydrology Unit

SDThe Hydrology Unit provides drainage and hydrology expertise to a variety of MaineDOT programs. The unit has updated the drainage design chapter of the Highway Design Manual to incorporate current design practices and the latest research in Maine hydrology. Unit staff perform hydrologic studies for highway and bridge projects, and assist in problem-solving at the division level. The unit also offers training to MaineDOT staff and consultants in MaineDOT drainage practice and policies.

Hydrology Unit Staff

  • Charles Hebson, Chief Hydrologist
  • Mark Lickus, Soils Research Scientist
  • Alex Mann, Soils Research Scientist

Surface Water Quality Unit

asSThe Surface Water Quality Unit has a multidisciplinary staff that provides technical
assistance to the Department in erosion and sedimentation control, stormwater
management, and other surface water concerns in the state of Maine. Unit staff offer
training to MaineDOT staff and consultants in surface water quantity and quality
concerns. They also assist the Maine Department of Environmental Protection's (MDEP)
Nonpoint Source Training and Resource Center in training certified contractors in erosion
control practices.

Through a stormwater memorandum of agreement (MOA) with the MDEP, the unit
oversees the implementation of the Maine Stormwater Law, for all MaineDOT
construction projects. All projects include a temporary erosion and sediment control plan
to meet the Basic Standards of the Maine Stormwater Management Law. For those
projects that trigger the General Standards, MaineDOT or consultants design permanent
stormwater control Best Management Practices.

The Unit is also responsible for implementing a Stormwater Program Management Plan,
developed in response to being regulated as a Municipal Separate Storm Sewer System
(MS4) under the Clean Water Act, administered by Maine DEP as a MPDES permit; and
for MaineDOT’s compliance with the MS4 and other MPDES permits.
Each year we provide reports to the MDEP summarizing MaineDOT activities under the
Stormwater MOA and the MPDES permits.

The Unit is also a primary contact for the general public regarding concerns with
stormwater quality impacts of MaineDOT facilities.


Surface Water Quality Unit Staff

  • Steve Tibbetts, Supervisor
  • Michael Clark, Environmental Specialist
  • Ryan Annis, Senior Technician
  • Rhonda Poirier, Environmental Specialist

Surface Water Quality Additional Information

This page last updated on 7/31/13