Storm Water Management (Chapter 8) Questions And Answers

Storm Water Management (Chapter 8)
Questions And Answers

Storm Water Control Measures (SCM) *Vary in scale (from a development site to a

watershed), timing in the runoff regime (placed at different points from sheet flow to

concentrated flow), objectives (runoff storage, conveyance, infiltration, treatment, detention).

*May be either structural or non structural

-Watershed approach

-Green Infrastructure

-Neighborhood design




Watershed approach -A holistic approach


-Wide range of strategies:

1)Structural

2)Non-structural

-Examples:

*Maryland Stormwater

Management Program

*Washington Stormwater

Management Program

, Storm Water Management (Chapter 8)
Questions And Answers

Maryland Stormwater Management Program Emphasized runoff flow control


-2000 the MDE had proposed new regulations to promote environmentally sustainable

techniques for controlling the quantity and quality of runoff from new development

-Maryland Stormwater Design Manual: establishes specific design criteria and procedures for

localities

-Program includes initiatives by giving credits for such methods in these sizing calculations for

required water quality, recharge, and channel protection volumes




Washington Stormwater Management Program -Created in response to 1987s Puget

Sound Water Quality Management Plan, which called on the agency (WDOE) to develop

guidance for stormwater quality improvement

-The Puget Sound Manual updated in 2005 to apply to all of Western Washington

-Provides 10 minimum requirements for new and redevelopment

-Green stormwater infrastructure




Watershed approach: Structural strategies -Building levees, dams, retention ponds


-Constructing water treatment facilities

-Treatment of wastewater