NapaSan remains in wait-and-see mode for winery wastewater
Napa Sanitation District is willing to explore being part of the winery wastewater disposal solution — if it can be convinced there is a pressing problem. … Napa County has several hundred wineries that create wastewater containing biodegradable organic matter and other materials. This winery wastewater is hard for the NapaSan treatment plant to handle on a large scale, though the plant does treat some.