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Description: W12-Proceedings
Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia
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Description: W12-Proceedings
Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia

Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia

Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia

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Description: W12-Proceedings
Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia
Abstract
The Philadelphia Water Department's (PWD) Green City, Clean Waters program involves a widespread application of green stormwater infrastructure (GSI) across its combined sewer overflow area. The program is part of the proposed long term control plan update for combined sewer overflow control in which GSI will be applied to more than 40% of the impervious cover over the next 25 years. A major concern regarding infiltration-type GSI is excessive groundwater table mounding such that it infiltrates into neighboring basements. PWD has evaluated groundwater mounding using three-dimensional groundwater models and is applying the models to site-specific designs to help refine a set of design criteria for GSI projects. Transient groundwater modeling to date shows that the water table could mound more than 1.37 meters (4.5 feet) immediately beneath infiltration trenches following significant rain events, however, the mounding is much less a short distance away from the infiltration trench and dissipates over several days.
The Philadelphia Water Department's (PWD) Green City, Clean Waters program involves a widespread application of green stormwater infrastructure (GSI) across its combined sewer overflow area. The program is part of the proposed long term control plan update for combined sewer overflow control in which GSI will be applied to more than 40% of the impervious cover over the next 25 years. A major...
Author(s)
Daniel O'RourkeMark MaimoneJames Knighton
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Sep, 2012
ISSN1938-6478
DOI10.2175/193864712811726716
Volume / Issue2012 / 13
Content sourceWEFTEC
Copyright2012
Word count166

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Description: W12-Proceedings
Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia
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Description: W12-Proceedings
Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia
Abstract
The Philadelphia Water Department's (PWD) Green City, Clean Waters program involves a widespread application of green stormwater infrastructure (GSI) across its combined sewer overflow area. The program is part of the proposed long term control plan update for combined sewer overflow control in which GSI will be applied to more than 40% of the impervious cover over the next 25 years. A major concern regarding infiltration-type GSI is excessive groundwater table mounding such that it infiltrates into neighboring basements. PWD has evaluated groundwater mounding using three-dimensional groundwater models and is applying the models to site-specific designs to help refine a set of design criteria for GSI projects. Transient groundwater modeling to date shows that the water table could mound more than 1.37 meters (4.5 feet) immediately beneath infiltration trenches following significant rain events, however, the mounding is much less a short distance away from the infiltration trench and dissipates over several days.
The Philadelphia Water Department's (PWD) Green City, Clean Waters program involves a widespread application of green stormwater infrastructure (GSI) across its combined sewer overflow area. The program is part of the proposed long term control plan update for combined sewer overflow control in which GSI will be applied to more than 40% of the impervious cover over the next 25 years. A major...
Author(s)
Daniel O'RourkeMark MaimoneJames Knighton
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Sep, 2012
ISSN1938-6478
DOI10.2175/193864712811726716
Volume / Issue2012 / 13
Content sourceWEFTEC
Copyright2012
Word count166

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Daniel O'Rourke# Mark Maimone# James Knighton. Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Web. 4 Jul. 2025. <https://www.accesswater.org?id=-280435CITANCHOR>.
Daniel O'Rourke# Mark Maimone# James Knighton. Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Accessed July 4, 2025. https://www.accesswater.org/?id=-280435CITANCHOR.
Daniel O'Rourke# Mark Maimone# James Knighton
Application of Groundwater Modeling Tools to Evaluate Potential Impacts from Stormwater Infiltration in Philadelphia
Access Water
Water Environment Federation
December 22, 2018
July 4, 2025
https://www.accesswater.org/?id=-280435CITANCHOR