Alpha & Omega Group provided professional engineering services to assist the Lochmere Home Owners Association with dredging sediments from the bottom of the 80-acre Lake Lochmere in Cary. The HOA wished to dredge about 12,000 cubic yards of sediment to create a depth of four feet to restore watercraft docking access to residents. The silt was pumped into pre-positioned geotechnical dewatering bags and used as fill on an adjacent hillside on a residential property.

The lake is subject to both Sections 401 and 404 of the Clean Water Act as well as Neuse River riparian buffer rules. A&O researched permitting requirements including a floodplain development permit, FEMA CLOMR/LOMR, and Army Corps of Engineers Nationwide Permit.

As prime consultant, A&O oversaw the delineation of wetlands, streams, riparian buffer and other environmental features on the site that were subject to Clean Water Act regulations.

A&O created a floodplain development permit application for submittal to the Town of Cary and provided construction documents consisting of a site plan and project specifications.

Reviewing agencies included the Town of Cary, North Carolina Department of environmental Quality, US Army Corps of Engineers, and Federal Emergency Management Agency.