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Identifying biogeochemical processes beneath stormwater infiltration ponds in support of a new best management practice for groundwater protection

By: , and 
Edited by: Mario SchirmerEduard Hoehn, and Tobias Vogt

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Abstract

 When applying a stormwater infiltration pond best management practice (BMP) for protecting the quality of underlying groundwater, a common constituent of concern is nitrate. Two stormwater infiltration ponds, the SO and HT ponds, in central Florida, USA, were monitored. A temporal succession of biogeochemical processes was identified beneath the SO pond, including oxygen reduction, denitrification, manganese and iron reduction, and methanogenesis. In contrast, aerobic conditions persisted beneath the HT pond, resulting in nitrate leaching into groundwater. Biogeochemical differences likely are related to soil textural and hydraulic properties that control surface/subsurface oxygen exchange. A new infiltration BMP was developed and a full-scale application was implemented for the HT pond. Preliminary results indicate reductions in nitrate concentration exceeding 50% in soil water and shallow groundwater beneath the HT pond.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Identifying biogeochemical processes beneath stormwater infiltration ponds in support of a new best management practice for groundwater protection
ISBN 9781907161162 1907161163
Volume 342
Year Published 2011
Language English
Publisher International Association of Hydrological Sciences
Publisher location Wallingford, England
Description 4 p.
Larger Work Type Conference Paper
Larger Work Subtype Conference Paper
Larger Work Title GQ10 : Groundwater quality management in a rapidly changing world : proceedings of the seventh International groundwater quality conference held in Zurich, Switzerland, 13-18 June 2010
First page 50
Last page 53
Conference Title GQ10: Groundwater quality management in a rapidly changing world
Conference Location Zurich, Switzerland
Conference Date June 12-18 2010
Online Only (Y/N) N
Additional Online Files (Y/N) N