11/10/22 AEG Event about Deep Aquifer Discharge

  • 10 Nov 2022
  • 6:00 PM - 10:00 PM
  • 60 Cottontail Lane, Somerset, NJ 08873


  • Payment is accepted at the door via cash, check, or credit card. $35 for AEG members / $45 for non-members / $5 for students.

Registration is closed


Deep Aquifer Recharge as a Resiliency Planning Tool for Green and Sustainable Groundwater Remediation

Thursday, November 10, 2022

At the Clarion Hotel in Somerset, New Jersey

John Robinson, PG, CPG, GISP, LSRP, Dewberry Engineers



Drawing – Right-of-Way Bioswale, Subsurface Detail (NYCity DEP)



Social Hour 6:00 pm – 6:45 pm    /    Dinner 6:45 pm – 7:45 pm   
Presentation begins at 8:00 pm   



Clarion Hotel         60 Cottontail Lane, Somerset, NJ 08873         (732) 560-9880


End of Business, Wednesday, November 9, 2022.  A timely RSVP is appreciated!

Please note, you can register more than one individual at a time!
Don't forget to add the event to your calendar from our website!


$35 for AEG members     /     $45 non-members     /     $5 for students with RSVP 
 Non-members always welcome!  Pay at the door by check, cash, or credit card. 
Make check payable to AEG.



One professional development hour (pdh) for continuing education credit (CEC) will be awarded for attending the presentation.
SRPLB Approval for One Technical CEC will be applied for.


Map – Summary of Aquifer Depletion in the U.S. 1900-2008 (USGS 2013, https://pubs.usgs.gov/sir/2013/5079)


This meeting is sponsored by:


   The Green infrastructure concept that is already widely applied for managing stormwater could be expanded to include the recharge of deep aquifers, as part of the design of future sustainable, long-term groundwater remediations systems. “Green infrastructure” is defined by the United States Environmental Protection Agency (USEPA) as “a cost-effective, resilient approach to managing wet weather impacts that provides many community benefits.” Nationwide, it seems that the vast majority of green infrastructure projects completed to date involve diverting stormwater or treated wastewater to recharge shallow water table aquifers. The Green infrastructure approach could help balance the over pumping of deep aquifers, as well as provide an important new component in the design of long-term groundwater remediations systems.   
   Groundwater testing and treatment inevitably involves the discharge of large volumes of water; a process that is difficult to manage and needs to be “greened up.”  Building in an option for approved deep groundwater discharge into a big project early, could reduce costs and improve performance. For example, early in a project, the discharge of pump test water direct to groundwater could help avoid the difficult process of discharging to the local sewers.  For long term projects, deep aquifer discharge could replace burdensome permitted discharges of very large volumes of treated water to the local POTWs.

   Groundwater extracted from deep and confined aquifers is often “mined” and is depleted faster than it recharges. Groundwater is a renewable resource, although not immediately, and the mining of deep groundwater temporarily disrupts a portion of the natural water cycle. Extracted groundwater from deep or confined aquifers is used at the ground surface and also ultimately makes its way into the ocean, thereby contributing to sea level rise. The United States Geological Survey (USGS) estimates that the depletion of combined aquifers in the U.S. alone accounted for 3.1 millimeters per year, or 2.3 percent of the observed rate of sea level rise between 2001 and 2008.

   Land subsidence is another unintended consequence of groundwater over-pumping.   is land subsidence. Subsidence is a result of groundwater withdrawal - commonly reported in California, Arizona - and is linked to the ongoing development of sinkholes throughout areas overlying the Floridan Aquifer. Combating sea level rise through enhanced continental absorption via the creation of green infrastructure, as well as the use of desalination and deep aquifer recharge, is a viable approach to reduce land subsidence. Groundwater Remediation systems could contribute significant volumes of treated discharged water to counter the effects of over pumping.
    A very long-term strategy designed to protect both surface and subsurface infrastructure as urban build-out and replacement occurs is important. The USEPA offers several grant funding sources that could be used to fund deep aquifer recharge pilot projects, including the Drinking Water State Revolving Fund (DWSRF) and the Water Infrastructure and Resiliency Finance Center (WIRFC.)
   This talk will also present other sustainable groundwater recharge options including long-term groundwater remediation systems.

   John Robinson is a Senior Hydrogeologist/Project Manager with Dewberry Engineers Inc., in Parsippany, NJ. He has a BA in geology from Hartwick College and an MS in geology from the University of Texas at El Paso. He is a professional geologist (PG) registered in the states of PA, NY and GA, and is also a Geographic Information Systems Professional (GISP), and a New Jersey LSRP. 


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