RDII definition

RDII means rainfall-derived inflow and infiltration. RDII is a parameter that can be measured, estimated or synthetically generated through other means, such as flow monitoring data or hydraulic modeling.
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Examples of RDII in a sentence

  • Rainfall information will aid in developing the required rainfall-derived infiltration/inflow (RDII) estimations that enter the collection system during a storm event.

  • The ▇▇▇▇▇▇ Creek drainage area flow monitoring and condition assessment was completed by Pipeline Analysis, LLC which concluded that approximately 81% of the ▇▇▇▇▇▇ Creek wet weather RDII is located on 65% of the collection system.

  • Wet Weather Flow (WWF) is a combination of calibrated BSF, wet weather GWI, and rainfall dependent inflow and infiltration (RDI/I).

  • The objective of these rehabilitation projects is to reduce rainfall derived inflow and infiltration (RDII) into the Forest Grove sanitary sewer collection system so an expansion of the secondary clarifiers at the Forest Grove AWWRF is not required.

  • Flow and rain monitoring services including, but not limited to, mobilization, traffic control, safety procedure, flow meter and rain gauge equipment rental and installation, field calibration, maintenance and operation of equipment, data collection, management and reporting on PRISM, and rain dependent inflow and infiltration (RDII) analysis shall be included in the following Unit Price Schedules as detailed in this exhibit.

  • The RDI/I and wet weather GWI will be calibrated using wet weather flow monitoring and rainfall data.

  • The ▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ rehabilitation project, which was the first rehabilitation project, achieved a reduction of RDII of over 3.3 million gallons per day which is over 50% of the overall flow reduction objective.