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EP Aeration Provides Wastewater Treatment for Niner Wine Estates

Submitted By: Richard Dennis, July 23, 2010
SAN LUIS OBISPO, CA – E P Aeration, the leader in sub-surface aeration and water quality management systems, announced the completion of its state-of-the-art wastewater treatment system at Niner Wine Estates, based in Paso Robles, CA. Engineered by Air Diffusion Systems (ADS) of Gurnee, IL, the aeration system is the first of its kind in the wine industry, and is designed to drastically reduce the liabilities and environmental impacts associated with typical onsite winery and agricultural wastewater treatment systems.

“EP Aeration’s ADS wastewater treatment system fits perfectly into Niner Wine Estate’s environmental ethic and has helped us score points towards LEED certification,” said Tom Bower, an engineer and representative of Niner Wine Estates, a super-premium winery located on Hwy. 46 West in Paso Robles. “We expect to get certified by the end of 2010 which will make us amongst the first wineries in the state to achieve LEED certification.”

“It’s an added bonus that Pacific Gas & Electric is going to rebate a portion of the equipment cost via their Savings By Design program, and we’re saving about $17,000 per year on energy costs.”

Unlike surface aerators which “beat” oxygen into the surface of the water, the ADS air diffusers utilized by EP Aeration are bottom-laid, fine-bubble systems which move water from the bottom of the treatment lagoon to the surface, where additional oxygenation takes place. Its fine bubbles not only move the water vertically through the water column, but provide the highest oxygen transfer rates in the industry and oxidize organic wastes as they rise. EP Aeration is the exclusive distributor for ADS systems and engineering in the State of California.

The result is high-quality water that is guaranteed to be odorless and meet state mandated water quality requirements while operating at 25% of the electrical requirements of an industry standard surface aerator. Once the water is treated it is sent through a constructed wetland for polishing and finally into a pond where it will be held until it is used to supplement approximately 15% of the estate vineyard’s water demand. The recycled water and energy savings make the system a model of sustainability.


“With California’s rising energy costs and on-going water availability issues, the same economic and environmental benefits realized by Niner Wine Estates will make E P Aeration’s ADS system the new industry standard,” said Richard Dennis, sales manager and environmental consultant at E P Aeration. “Agricultural operations in California are facing increasing demands from the State and local governments for wastewater and agricultural runoff treatment, and we can offer affordable and effective treatment systems, as the Niner installation is already demonstrating.”

Founded in 2001, Niner Wine Estates is dedicated to making the highest quality wines possible in the Paso Robles appellation, using only estate-grown fruit from its Bootjack Ranch and Heart Hill vineyards. Varietals include Grenache blanc, Syrah, Malbec, Petite Verdot, Cabernet Franc and Cabernet Sauvignon. Niner Wine Estates has just completed the finishing touches on a state-of-the-art winery and inviting Hospitality Center including a demonstration kitchen for visiting chefs, a private CLUB 9 members-only lounge and patio facilities. They are currently open for business and just celebrated their Grand Opening festivities in early May. For more information about Niner Wine Estates, please visit or call (805) 239-2233.

With more than 400 installations throughout North America, EP Aeration, Inc., has specialized in low-energy, chemical-free water treatment for more than 20 years. Historically, the company’s installations have been on golf courses, resorts, housing developments, and private estates for algae and odor control, metals and hydrocarbons. The company is now gaining market share in wastewater treatment for domestic and process wastewater facilities. For more information on our water treatment systems for wastewater and reservoirs, please visit our website at or call us at (800) 556-9251. E P Aeration, 645D Tank Farm Rd., San Luis Obispo, CA. Phone: 805-541-6140. FAX: 805-541-6149. E-mail: