Difference between revisions of "Glossary of Terms"

Latest revision as of 19:15, 7 September 2017

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Terminology

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-|text=<span style="font-size:12%; line-height: 2.1em;">|1=<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">[[#A|A]], [[#B|B]], [[#C|C]], [[#D|D]], [[#E|E]], [[#F|F]], [[#G|G]], [[#H|H]], [[#I|I]], [[#J|J]], [[#K|K]], [[#L|L]], [[#M|M]], [[#N|N]], [[#O|O]], [[#P|P]], [[#Q|Q]], [[#R|R]], [[#S|S]], [[#T|T]], [[#U|U]], [[#V|V]], [[#W|W]], [[#X|X]], [[#Y|Y]], [[#Z|Z]]</div>}}
-= A =
-=== Aggregate ===
-A broad category of particulate material used in construction, including sand,
-gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates, and available in
-various particulate size gradations.
-= B =
-=== Berm ===
-A compacted earthen wall that diverts runoff or creates shallow ponding of runoff. In
-some cases, runoff ponds behind the berm and gradually flows through it or is infiltrated.
-=== Biofilter ===
-A bioretention stormwater best management practice featuring an impermeable liner
-and underdrain that prevents infiltration of runoff into the underlying native soil; provides
-sedimentation and filtration of urban runoff as it passes through the mulch layer, engineered
-filter media and vegetation root zone.
-=== Bioretention ===
-A stormwater filtration and infiltration practice. The practice is a shallow
-excavated surface depression containing a prepared soil mix, mulch, and planted with specially
-selected vegetation. The system is engineered to temporarily store runoff in the depression and
-gradually filters it through the mulch, engineered soil mix, and root zone. They remove
-pollutants from runoff through filtration in the soil and uptake by plant roots and can help to
-reduce runoff volume through evapotranspiration and infiltration.
-= C =
-=== Check Dam ===
-Structures constructed of a non-erosive material, such as suitably sized
-aggregate, wood, gabions, riprap, or concrete, used to slow runoff water to allow sedimentation,
-filtration, evapotranspiration, and infiltration into the underlying native soil. Can be employed in
-practices such as dry and enhanced grass swales.
-=== Cistern ===
-Tank used to store rainwater (typically roof runoff) for later use.
-= D =
-=== Depression Storage ===
-A technique for incorporating shallow depressed areas into urban
-landscaped areas for storing and infiltrating runoff. Typically, depression storage areas are
-small and have limited capacity and limited duration of retention in order to address property
-owner concerns relating to insects, damage to structures and inconvenience of ponded water on
-their property.
-=== Detention ===
-The temporary storage of stormwater to control discharge rates, and allow for
-sedimentation.
-=== Drawdown Time ===
-The period between the maximum water level and the minimum level (dryweather
-or antecedent level).
-=== Dry Swale ===
-Linear bioretention cells designed to convey, treat and attenuate stormwater runoff;
-The engineered filter media soil mixture and vegetation slows the runoff water to allow
-sedimentation, filtration through the root zone, evapotranspiration, and infiltration into the
-underlying native soil.
-= E=
-=== Evapotranspiration ===
-The combined loss of water to the atmosphere from land and water
-surfaces by evaporation and from plants by transpiration.
-=== Enhanced Grass Swale ===
-Vegetated open channels designed to convey, treat and attenuate
-stormwater runoff, also referred to as enhanced vegetated swales. Enhanced grass swales are
-not capable of providing the same water balance and water quality benefits as dry swales, as
-they lack the engineered soil media and storage capacity.
-=== Environmental Impact Report (EIR) ===
-The evaluation of the possible effects that may arise from a
-proposed project on the environment, together consisting of the natural, social and economic
-aspects.
-=== Exfiltration ===
-Loss of water from a drainage system as a result of percolation or absorption into
-the surrounding medium (e.g., the infiltration of water into the native soil through a perforated
-pipe wall as it is conveyed).
-= F =
-= G =
-= H =
-= I =
-= J =
-= K =
-= L =
-= M =
-= N =
-= O =
-= P =
-= Q =
-= R =
-= S =
-= T =
-= U =
-= V =
-= W =
-= X =
-= Y =
-= Z =

Difference between revisions of "Glossary of Terms"

Latest revision as of 19:15, 7 September 2017

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