n8n Workflow: Water Well Permit Filing w/ OpenAI & Gmail Webhook

Automatically Validate & File Water Well Permit Records—Using OpenAI, Webhooks, and Gmail

This n8n workflow automates regulatory well compliance by taking a posted well completion report, using an OpenAI agent to confirm minimum Water Board requirements, enforcing the 48-hour cure delay, and then filing the final record—while sending updates via Gmail.

What this workflow does

• Receives well completion data via an n8n webhook (POST).
• Normalizes inputs into typed fields such as license expiry, grout depth, and setback distances.
• Calls State Water Board API through an OpenAI chat model–powered agent to retrieve the minimum grout depth and setback requirements based on the county and aquifer type.
• Validates compliance by comparing reported measurements to the returned minimums and checking whether the driller license is expired.
• Handles cure delay: if the record passes initial checks, the workflow waits 48 hours, then fetches a post-cure grout depth reading from a county field inspection API.
• Applies tolerance rules (1 ft tolerance) and tags the record as ready to file or on hold for cure failure.
• Files with the State Water Board portal and then archives a copy to Google Drive.
• Sends status updates via Gmail once processing is complete.

Use cases

• Automation for well compliance teams that need consistent, audit-friendly permit filing decisions.
• Ops/SaaS workflows that ingest completion reports and reduce manual review of grout depth and setbacks.
• Engineering teams managing delayed validation after a 48-hour cure window.

Technical details

• Nodes/logic: if, set, code, wait, webhook, gmail.
• Integrations & credentials: OpenAI; State Water Board API (HTTP Header Auth); County Field Inspection API (HTTP Header Auth); Google Drive OAuth2; Gmail OAuth.