By NORMA Group
NDS Design Worx® team masters multiple site constraints for underground water storage at convenience store/fuel service center
A major gas station and convenience store chain announced that it intended to expand in the state of Pennsylvania with dozens of new locations. Construction for one of those sites began in April 2024 in the town of Sanatoga.
As part of the project, the engineer of record identified the need for a subsurface storage basin and contacted NDS to assist with the design and to determine the size, location, and storage necessary to ensure they would meet regulations set forth by the state of Pennsylvania.
Project Summary
Project Type
Storage & Infiltration
Property
Gas Station
NDS Products Used
NDS Design Worx® Services Utilized
- Layout drawings
- Stormwater calculations
- Installation details
NDS Solution Meets Numerous Challenges
Having partnered on a number of projects with NDS in the past, the engineering firm looked to the Design Worx® team for expert guidance on a stormwater system that could circumvent a few key constraints with this particular job, including challenges with elevation, poor soil, and the location of utilities.
After a thorough analysis of the jobsite and research on the specific storage volume criteria required in the state, the Design Worx team proposed a comprehensive NDS StormChamber® system solution that could handle 27,000cf of storage.
NDS StormChamber units maximize storage volume in limited footprints, providing 75ft³ of internal storage capacity. Because this is significantly more storage per chamber than similar size chambers, it results in a layout that requires fewer chambers, which in turn leads to a reduction in installation time and onsite excavation.
Robust Design Support When Needed Most
The NDS team was at the ready when it was time for installation, knowing minor revisions to the plan might be required to work around the challenges presented onsite. Their final installation details evaded elevation and ground constraints, circumvented utility placements, and even provided custom details for the catch basins installed to ensure a secure connection to the subsurface system in less than ideal soil conditions. All NDS product was successfully installed in August of 2024; and while it may be invisible underneath the station’s asphalt parking area, its placement has enabled an effective stormwater management solution for the gas and convenience store owner’s newest location.
