Abandoned Well Liability in California | SCWS

California property owners are legally responsible for properly destroying abandoned wells. Learn about liability risks, required procedures, and how to handle an old well on your property.

California's Well Abandonment Requirements

California Water Code Section 13700 and local ordinances require all unused wells to be properly destroyed. This means filling the well bore with cement or bentonite grout in a specific manner that prevents groundwater contamination and surface collapse. A well destruction report must be filed with the state within 60 days of completion.

Liability Risks of Improperly Abandoned Wells

Unsealed wells can allow surface contaminants—pesticides, fertilizers, sewage—to reach groundwater aquifers used by neighbors' wells or municipal supplies. Property owners have faced six-figure cleanup costs and lawsuits from contamination traced to their improperly abandoned wells. Physical hazards also create premises liability if someone is injured by an uncovered or unstable well.

Buying Property with an Old Well

During real estate transactions, disclose any known wells to buyers. Buyers should order a well inspection or survey if older records suggest wells may exist. Title insurance typically doesn't cover well-related environmental liability. Consider negotiating destruction costs or having the seller complete proper abandonment before closing.

The Proper Destruction Process

Well destruction must be performed by a C-57 licensed contractor. The process involves removing pumps and debris, perforating the casing at aquifer levels, filling with neat cement or bentonite grout from bottom to top, cutting the casing below grade, and welding a steel cap. The county must be notified before work begins and will inspect the completed work.

We service all major pump brands including Franklin Electric, Grundfos, Goulds (Xylem), and Sta-Rite (Pentair). Our trucks carry common parts and components for same-day repairs.

Frequently Asked Questions