Groundwater Application (Monitoring Wells)

Application to install/abandon water, monitoring or emergency extraction well(s), or any other excavation(s) that may intersect groundwater within the City of Modesto: A permit is required for ANY excavation in the City limits that may intersect groundwater. This includes, but is not limited to installation or abandonment of monitoring wells, vapor extraction wells, private water wells, etc. Processing time for this type of permit is approximately 15 to 20 working days.  To submit a Monitoring Well Application on-line, click on the link below or email (please include Encroachment Permit Application).