San Diego County Well Permit Process: Complete 2026 Guide

Step-by-step guide to obtaining a well drilling permit in San Diego County. Learn requirements, fees, timelines, and how to navigate the DEH permitting process.

Understanding San Diego County Well Permits

San Diego County Department of Environmental Health (DEH) regulates all well construction in the county. Permits are required for new wells, modifications, and destructions. There are two main permit types: individual domestic wells and agricultural/irrigation wells. Pre-application meetings are available for complex projects to ensure your site meets all requirements before submitting a formal application.

Application Requirements and Documentation

To apply for a well permit, you'll need a completed DEH well permit application form, a site plan showing property boundaries, structures, septic systems, and the proposed well location, proof of property ownership or written authorization from the owner, and your parcel map or assessor's parcel number (APN). Application fees range from $500-$800 depending on well type as of 2026.

The Permit Review Process

Initial application review typically takes 2-4 weeks. DEH may request additional information or site modifications during review. Key setback requirements include 50 feet from septic tanks and 100 feet from leach fields. Special review is required in groundwater-impaired areas. Once approved, permits are valid for one year from the issuance date.

Inspection and Final Approval

Pre-drilling inspection may be required in sensitive areas. All work must be performed by a licensed C-57 well driller. A well completion report (DWR Form 188) must be filed within 60 days of completion. Water quality testing is required before use for domestic purposes. After final inspection verifies proper well construction and sanitary seal, DEH issues a final approval letter.

Frequently Asked Questions