Napa County "Do it Yourself" (DIY) Groundwater Monitoring Program
Why should I measure the water depth in my well?
Many want to know how the water depth in their well changes over the course of the year to better understand how the groundwater reservoir beneath their land responds to winter recharge and use over the dry months. Measurements are best taken in the spring and fall over multiple years in order to see long-term trends in groundwater recharge.
What’s the tool?
See a short video on the tool. The Well Sounder 2010 Pro (www.EnoScientific.com) is a hand-held sonic measuring device that determines the depth to the water in a well. Once calibrated with correct site-specific data, the tool can accurately make depth measurements within minutes.
How do I borrow the tool from the County?
- Contact County staff and indicate your interest in the DIY Groundwater Monitoring Program (contact information below),
- Program partners at the Napa County Resource Conservation District will demonstrate the equipment at your well site and will help with initial tool calibration,
- Then you can borrow the equipment seasonally to measure your water level; equipment is loaned for a 2-day period.
Will the County collect my well data?
Napa County currently monitors a number of wells throughout our community. Although additional wells are not needed at this time, please contact the County if you are interested in volunteering your well for County monitoring as they periodically update the monitoring network.
Reserve the tool or learn more
Charles Schembre, Napa County Resource Conservation District,
707-252-4189 x113, firstname.lastname@example.org
Jeff Sharp, Napa County Public Works,
Additional groundwater information can be found here on the WICC at www.napawatersheds.org/groundwater.
You can also join the County’s Groundwater List Serve at: www.countyofnapa.org/groundwater.
Well Sounder 2010 connected to a well
Well Sounder 2010
Homeowner using the well sounder to monitor his well