On July 1, 2002, HOH Corporation located at 1701 Vargrave Street, Winston-Salem, NC was issued a Centralized Waste Treatment (CWT) Permit. We believe HOH Corporation is one of only a few commercial industrial pretreatment facilities in the Mid-Atlantic United States to receive this required permit set forth by US EPA / CLEAN WATER ACT of December 2000. (All existing and new wastewater facilities must comply with these new CWT guidelines by December 22, 2003.)

What is a CWT Facility?

A CWT facility is one that accepts for treatment and/or recovery used industrial materials generated off-site (at another location). These used materials may be hazardous, non-hazardous, solid, or liquid. (Note: HOH Corporation accepts non-hazardous waste only at its Winston-Salem, NC facility.)

What is the CWT Rule and What Does It Require?

The CWT Rule contains effluent limitations guidelines and standards for the CWT industry. These are numerical restrictions that are applied to the discharge of wastewaters from CWT facilities to waters of the U.S. or into a local POTW. HOH Corporation is authorized to discharge treated wastewater meeting the CWT /local municipality effluent limitations to the City of Winston-Salem, NC sanitary sewer and municipal wastewater system.

US EPA developed different effluent limitations and standards for the CWT operations depending on the type of waste received by the CWT. There are four types, or subcategories of wastewater:
Subcategory A: Facilities that treat or recover metal from metal-bearing waste, wastewater, or used material received from off-site;
Subcategory B: Facilities that treat or recover oil form oily waste, wastewater, or used material received from off-site;
Subcategory C: Facilities that treat or recover organics from organic waste, wastewater, or used material received from off-site;
Subcategory D: Facilities that treat or recover some combination of metal-bearing, oily, or organic waste, wastewater, or used material received from off-site.

HOH Corporation elected to comply with the Subcategory D limitations (metal-bearing, oily, and organic wastewater). CWT rule requires the facility (HOH) to demonstrate equivalent treatment for all subcategories of wastewater. HOH has the equipment at its Winston-Salem facility to treat Subcategory D waste streams. HOH's treatment system includes the following:
Physical/Chemical Treatment (Batch System & Flow-Thru)
Carbon Filtration
Bag Filtration
Oil / Water Separation
Ultra Filtration
Nano Filtration
Alar Rotary Vacuum System
Filter Press

As you can see, HOH Corporation with its many treatment options and capabilities listed above has invested time and money over the past few years to qualify and earn this CWT Permit. We have prepared ourselves more than any other wastewater facility in the area to handle all your Non-Hazardous wastewater treatment needs.

Please don't hesitate to call HOH (336) 727-4644 with any questions or comments you may have regarding our wastewater treatment services or your own facility wastewater treatment concerns. (HOH also designs, manufactures and installs wastewater systems & oil / water separators.) We have the knowledge and experience to assist you with all your wastewater service and equipment needs.

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