SWPPP

  • Post category:Glossary

Storm Water Pollution Prevention Plan

Spillways

  • Post category:Glossary

A passage for surplus water from a dam or Diversion

SEAI

  • Post category:Glossary

Southern Embankment and Associated Infrastructure

Staging Area

  • Post category:Glossary

A defined area immediately upstream of the dam. When the Project is operated, water would be temporarily detained in the staging area to minimize impacts downstream. The staging area encompasses…

Spoil Piles

  • Post category:Glossary

excavated materials consisting of topsoil or subsoils that have been removed and temporarily stored during the construction activity. (http://www.michigan.gov/documents/deq/deq- wb-nps-sp_250905_7.pdf)

Special Flood Hazard Area (SFHA)

  • Post category:Glossary

An area having special flood, mudflow or flood-related erosion hazards and shown on a Flood Hazard Boundary Map (FHBM) or a Flood Insurance Rate Map (FIRM) Zone A, AO, A1-A30,…

Significant Effect

  • Post category:Glossary

An effect that is predicted to be above an identified threshold and/or an effect that was determined by the lead agencies to have a magnitude that is great based on…

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