If groundwater conditions are so good, why did my well go dry?

Overall groundwater levels in the main Napa Valley Subbasin have been stable for decades. Groundwater conditions outside the Napa Valley Subbasin are more variable, such as in the Milliken-Sarco-Tulucay (MST) area. In addition to the effects of the recent drought, the productivity of an individual well can depend on a number of things including the depth and serviceable life of the well, local aquifer properties, and amount and rate of nearby pumping from surrounding wells. Report dry wells here.

Show All Answers

1. Is groundwater quality currently being monitored?
2. Is there a link between groundwater and surface water, and if so, how will it be managed?
3. What is a water budget?
4. What is irrigation system efficiency and what factors affect the efficiency?
5. What is the current status of the Napa River for impairment under the Clean Water Act?
6. How is climate change taken into account in considering and planning for groundwater sustainability?
7. How does the groundwater basin affect flows within the Napa River?
8. If groundwater conditions are so good, why did my well go dry?
9. If depth to groundwater is so shallow, why do wells seem to be getting deeper to find water?
10. Why are streams that used to flow in the summer now dry?
11. Since surface water and groundwater are connected, isn’t groundwater pumping dewatering the Napa River and threatening our remaining native fish populations?
12. Are you doing anything about well problems in the county like the Petra Dr / Soda Canyon area?
13. Return to the Groundwater FAQ page