Augmentation of Results of Study of Groundwater Mounding Beneath Stormwater Infiltration Structures Completed
New Jersey WSC Archived Project
In preparing guidelines for using the published USGS tables of simulation results, the NJDEP determined additional simulations are needed that include infiltration rates out of the recharge basins that are equivalent to the simulated infiltration capacity of the soil. Published simulations results are from simulations with infiltration rates that are less than the infiltration capacity of the soil, resulting in maximum simulated groundwater mound heights that are lower than would result using higher infiltration rates, equal to the soil infiltration capacity. Simulations will be completed in which the simulated infiltration rate from the recharge basin into the aquifer is adjusted to equal the simulated infiltration capacity of the soil. Previously completed pre- and post- processing programs and model input files will be used, and new model input files will be created as necessary.
START DATE: 01-OCT-2010
END DATE: 30-SEP-2011
PROJECT NUMBER: LJ00EGW
STUDY OBJECTIVES:
Simulations will be completed in which the simulated infiltration rate from the recharge basin into the aquifer is adjusted to equal the simulated infiltration capacity of the soil. Previously completed pre- and post- processing programs and model input files will be used, and new model input files will be created as necessary. A subset of the variables simulated in the previous report will be excluded in the additional simulations because results from the previous study indicated the height and extent of the simulated groundwater mounds are not sensitive to variations of these variables.
STATEMENT OF PROBLEM:
In preparing guidelines for using the published USGS tables of simulation results, the NJDEP determined additional simulations are needed that include infiltration rates out of the recharge basins that are equivalent to the simulated infiltration capacity of the soil. Published simulations results are from simulations with infiltration rates that are less than the infiltration capacity of the soil, resulting in maximum simulated groundwater mound heights that are lower than would result using higher infiltration rates, equal to the soil infiltration capacity. Furthermore, simulations of developments larger than 10 acres are needed to extend the applicability of the results. Finally, comparison of the additional numerical simulations to analytical simulations is needed to provide a complete evaluation of applicability of the spreadsheet solving the analytical equation.
STRATEGY AND APPROACH:
Results from simulations using the model framework developed for SIR 2010-5102 will be summarized for: five values of soil permeability instead of two; one value of aquifer thickness instead of three; and five depths of basins. Furthermore, the simulations will be based on basin size and can be applied to a development of any area with a basin of that size. The study results will be presented in a brief USGS Scientific Investigations Report.
DISCLAIMER: This webpage contains information about completed or inactive projects from the NJ Water Science Center. It has been created for historical purposes and may be a utility to locate published information. This page should not be considered an authoritative source. You are encouraged to contact the NJ WSC for more current information.
Below are publications associated with this project.
Simulation of Groundwater Mounding Beneath Hypothetical Stormwater Infiltration Basins
- Overview
In preparing guidelines for using the published USGS tables of simulation results, the NJDEP determined additional simulations are needed that include infiltration rates out of the recharge basins that are equivalent to the simulated infiltration capacity of the soil. Published simulations results are from simulations with infiltration rates that are less than the infiltration capacity of the soil, resulting in maximum simulated groundwater mound heights that are lower than would result using higher infiltration rates, equal to the soil infiltration capacity. Simulations will be completed in which the simulated infiltration rate from the recharge basin into the aquifer is adjusted to equal the simulated infiltration capacity of the soil. Previously completed pre- and post- processing programs and model input files will be used, and new model input files will be created as necessary.
START DATE: 01-OCT-2010
END DATE: 30-SEP-2011
PROJECT NUMBER: LJ00EGW
STUDY OBJECTIVES:
Simulations will be completed in which the simulated infiltration rate from the recharge basin into the aquifer is adjusted to equal the simulated infiltration capacity of the soil. Previously completed pre- and post- processing programs and model input files will be used, and new model input files will be created as necessary. A subset of the variables simulated in the previous report will be excluded in the additional simulations because results from the previous study indicated the height and extent of the simulated groundwater mounds are not sensitive to variations of these variables.
STATEMENT OF PROBLEM:
In preparing guidelines for using the published USGS tables of simulation results, the NJDEP determined additional simulations are needed that include infiltration rates out of the recharge basins that are equivalent to the simulated infiltration capacity of the soil. Published simulations results are from simulations with infiltration rates that are less than the infiltration capacity of the soil, resulting in maximum simulated groundwater mound heights that are lower than would result using higher infiltration rates, equal to the soil infiltration capacity. Furthermore, simulations of developments larger than 10 acres are needed to extend the applicability of the results. Finally, comparison of the additional numerical simulations to analytical simulations is needed to provide a complete evaluation of applicability of the spreadsheet solving the analytical equation.
STRATEGY AND APPROACH:
Results from simulations using the model framework developed for SIR 2010-5102 will be summarized for: five values of soil permeability instead of two; one value of aquifer thickness instead of three; and five depths of basins. Furthermore, the simulations will be based on basin size and can be applied to a development of any area with a basin of that size. The study results will be presented in a brief USGS Scientific Investigations Report.
DISCLAIMER: This webpage contains information about completed or inactive projects from the NJ Water Science Center. It has been created for historical purposes and may be a utility to locate published information. This page should not be considered an authoritative source. You are encouraged to contact the NJ WSC for more current information.
- Publications
Below are publications associated with this project.
Simulation of Groundwater Mounding Beneath Hypothetical Stormwater Infiltration Basins
Groundwater mounding occurs beneath stormwater management structures designed to infiltrate stormwater runoff. Concentrating recharge in a small area can cause groundwater mounding that affects the basements of nearby homes and other structures. Methods for quantitatively predicting the height and extent of groundwater mounding beneath and near stormwater Finite-difference groundwater-flow simuAuthorsGlen B. Carleton