A new winery proposed for Knights Valley was approved Tuesday by the Sonoma County Board of Supervisors, which denied an appeal from two local groups concerned about the long-planned facility’s impacts on the remote area.

With little fanfare, supervisors unanimously followed through on the intent they relayed last month during a lengthy public hearing about the Knights Bridge Winery

Under a condition placed by county officials, the project cannot draw more groundwater than currently used at the site, which already includes about 43 acres of vineyards. The winery, which can produce up to 10,400 cases, is slated for a roughly 86-acre property off Spencer Lane.

A potential squeeze on the area’s already-scarce groundwater supplies was a primary concern among project opponents, including the Maacama Watershed Alliance and the Friends of Spencer Lane, who appealed the Board of Zoning Adjustments’ 2015 approval of the project to supervisors.

To meet the condition, the county is requiring the winery to reduce the property’s existing usage of groundwater by at least 0.5 acre feet annually, or nearly 163,000 gallons per year. Project applicant Jim Bailey initially plans to meet the requirement by dry farming three acres of vines, according to county staff.