Chamisal Vineyards August 20th, 2013

San Luis Obispo, CA – Wallace Group completed design and construction of an improved winery wastewater reclamation system for a 100,000 case-per-year production facility. The system is designed to meet state-mandated discharge requirements for land disposal, as well as minimize visual, noise, and odor impacts to maintain a desirable setting for the winery’s tasting room and surrounding neighbors.

In 2005, Wallace Group was asked to assist with design and construction of a process wastewater treatment system for Chamisal’s expanding production facility. The design of the process wastewater treatment included a septic tank for primary treatment, followed by a pH adjusting lift station and a constructed wetland for effluent polishing. The original treatment system was designed for 3,000 gallons of process wastewater per day. In 2012, the winery’s production facility would again need to expand to keep up with the demand for their excellent wines. In order to increase production, they would also need to expand their process wastewater treatment system. Wallace Group helped the winery design a treatment system that would utilize the existing storage pond by adding subsurface aeration through fine-bubble diffusion, and converting the pond from storage to secondary treatment. A new blower building was added, pond grading and improvements were installed by a local construction company DKal Construction, with assistance from equipment supplier, EP Aeration, for installation of the treatment equipment and aeration system.

The new wastewater system uses ADS, Inc. fine-bubble diffusion which has been shown to operate at 25% below the industry standard for electrical requirements. The system is now capable of treating up to 12,500 gallons of process wastewater per day. Treated process water is then re-used on site, adding to the winery’s sustainable best management practices.