Wednesday, September 29, 2010

Stormwater Seminar in MN & ND Permiting and Design

Minnesota and North Dakota Stormwater Management Seminar
Fargo, North Dakota
Friday, November 19, 2010


  • Examine federal, state, and local rules on stormwater management
  • Review municipal, industrial and construction permits and the permitting process
  • Explore green stormwater practices
  • Examine site selection, sizing, and design
  • Evaluate erosion and water quality


Understanding Federal and State Rules on Stormwater Management
Federal statutes and regulations, National Pollutant Discharge Elimination System (NPDES) requirements, State statutes and regulations, North Dakota Department of Health NDDH stormwater requirements, Minnesota Pollution Control Agency MPCA stormwater requirements, Local requirements and procedures, Storm water permits and permit application process, Special waters and impaired waters

Stormwater Management Using Wet and Dry Detention Facilities
Detention/retention pond overview, Advantages and disadvantages, Design considerations, Hydrology, Permitting, Site selection, Water quality, Pond sizing, Safety considerations, Outlet structures, Good design practices, Pond routing theory, Interconnected ponds, Steps for detention design

Stormwater Quality Best Management Practices
Bioretention and rain-leader disconnect raingardens, Cisterns, Permeable pavers/pervious concrete, Disconnecting impervious area/vegetated swales, Soil amendments, Rainwater harvesting, Green roofs

Bioretention Design and Maintenance
Costs and consequences of poor design, Site evaluation, Cell configuration and soils, Siting, ponding depth, vegetation, Installation specifications, Maintenance program, Overview of maintenance activities, Costs, Case Study: City of Plymouth, Minnesota, residential raingarden and maintenance program

Download Seminar brochure

Caltha LLP provides expert consulting services to public and private sector clients nationwide to address Stormwater Permitting & Regulatory Support, Stormwater Pollution Prevention Plans (SWPPP), Stormwater Monitoring and Stormwater Training.

For further information contact Caltha LLP at or Caltha LLP Website

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