Problem: Two neighboring residences located on Three Mile Harbor in East Hampton, New York, had collapsing cesspools that needed to be replaced with a low-nitrogen treatment unit pursuant to new sanitary mandates implemented by the town and county. The project was complicated by the properties’ close proximity to the harbor and the resultant high-water table. 

Solution: Advanced Wastewater Solutions and A&A Sewer and Drain teamed up to replace the failing cesspools with FujiClean CEN5 onsite treatment units leading into a pressurized shallow drainfield consisting of an Orenco Simplex Pump Station discharging into two rows of chambered drainfield. The CEN units are designed to remove upwards of 80% of nitrogen from the wastewater effluent through contact filtration treatment whereby the wastewater is recirculated through aerobic and anaerobic chambers in direct contact with fixed film media, facilitating biological digestion and mechanical filtration. The pressurized shallow drainfield further reduces total nitrogen and provides treatment of other contaminants by evenly distributing the effluent within 18 inches of the topsoil horizon where increased microbial activity and nutrient absorption occurs.

Result: Pursuant to a special emergency replacement program adopted by Suffolk County, the contractors were able to bypass the usual months-long sanitary design and approval process and replace both failed cesspools in a total of three days. 207-406-2927; www.fujicleanusa.com