County reports stable ground water levels under Napa Valley

Napa County is trying to make the case that it does a good job managing the underground reservoir beneath the Napa Valley that provides groundwater for rural homes, wineries and vineyards.

Groundwater levels beneath the main Napa Valley floor are five to 35 feet deep in the spring and the basin remains “full overall” despite the drought, according to a new, draft Napa Valley groundwater report.

“The conditions in the main Napa Valley subbasin have been stable for many decades,” said consultant Vicki Kretsinger Grabert, who worked on the report.