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CULTEC's Recharger 280 HD underground retention system, selected by the town engineers of Florham Park, N.J., proved a cost-effective solution due to its internal manifold (which eliminated the need for a costly external pipe header); need for less backfill in comparison to other systems; and fast and easy installation.

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Florham Park, N.J., is a small suburban community located about 30 miles west of New York City, where it boasts its own library, swimming pool and other recreational facilities. In February 2010, ground was broken for a new Senior Center, and Florham Park engineers embarked on designing a stormwater system to control runoff and prevent contamination of the tributaries to the Passaic River to the west town border.

The Senior Center was located on a one-acre parcel with a driveway circling the building and a parking lot in the rear. There was not enough available land area for an open detention pond so the engineers opted for an underground stormwater system as the only available alternative.

The engineers selected CULTEC's Recharger 280 HD retention chambers to capture the runoff onsite and release it in a controlled manner to an existing underground piped drainage system at the rear of the site. The system allowed for some infiltration into the ground. Each chamber is 47 inches wide, 26.5 inches high and offers 6.08 cubic feet per linear foot of storage capacity. According to CULTEC's sales representative Jonathan Shell of East Coast Associates, the engineers selected the Recharger 280 HD from nine available chamber sizes because it offered the best fit in the given depth-restriction scenario.







It took two hours to put CULTEC chambers together at Florham Park's Senior Center. The dome-shaped chambers stockpile easily and do not require heavy installation equipment. They are also lightweight and easy to ship.


The system employed 102 chamber units and 16 HVLV FC-24 feed connectors to provide 6,800 cubic feet of storage. Unlike other systems on the market, CULTEC employs its own in-line side portal manifold eliminating the need for a costly external pipe header. Not only is such a system easier to install than a conventional manifold system but it is also more cost-effective. The savings to the internal manifold are compounded by the fact that CULTEC's systems use less stone than other comparable systems on the market and require no heavy installation equipment.

According to Florham Park Borough Engineer Michael Sgaramella, PE, who inspected the site during the installation, the arch-like shape of the stormwater chambers provided adequate strength to withstand vehicular surcharge loads from the parking lot located above the system.

''CULTEC's system was much easier to install than a pipe system,'' said Sgaramella. ''When the chambers are installed, they are easily handled by a light-duty backhoe and fit together in an uncomplicated manner.''

It took two hours to put the chambers together in a 3,407-square-foot bed located under the Senior Center parking lot. CULTEC's chambers meet H-25 wheel load criteria, and are certified by IAPMO R&T and protected by a 10-year warranty.

For Florham Park's Senior Center, CULTEC's system was able to provide a cost-effective stormwater solution that accommodated the site's high groundwater table and a lack of land for a surface detention basin. It also resulted in a fast and easy installation, helping the project to move speedily toward completion.

For more information, visit www.cultec.com.

About CULTEC

In 1986, CULTEC introduced its Contactor and Recharger HDPE septic and stormwater chambers and helped begin a revolution toward the use of plastic construction products. Since then, several product developments and strategic alliances have made CULTEC a cutting-edge R&D-based manufacturer. CULTEC chambers can be used as subsurface retention or detention systems and as replacements for ponds, concrete structures or pipe and stone installations.

CULTEC manufactures nine different chamber sizes ranging from 8.5'' - 32'' to accommodate almost any site parameter. The chambers' perforated sidewalls and fully open bottoms promote maximum infiltration capability and allow for the transfer of high volumes of water at a low velocity. The units can be installed singularly or in series in single- or multi-layer beds.

In addition, CULTEC developed its own in-line side portal manifold system, which eliminates the need for a conventional pipe header system, and water quality unit for maintaining CULTEC chamber systems. CULTEC products meet H-25 wheel load requirements, have a 10-year warranty and are currently modeled in HydroCAD, Bentley Systems, Inc.'s PondPack, BOSS International's StormNET, and Streamline Technologies' ICPR.

CULTEC's technical staff offers free design assistance including preliminary calculations and job-specific CAD details. A free CULTEC StormGenie -- AutoCAD Plug-In for designing CULTEC systems and a free HydroCAD CULTEC custom edition are also available from the company. In addition, CULTEC products can contribute to the U.S. Green Building Council's credits, under the LEED rating system, when the project is designed per LEED requirements.


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August 17, 2018, 12:35 am PDT

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