OdorWatch helps Roseville & Rocklin track unpleasant smells from landfills, farms, and other sources — in real time.
See where odors have been reported across Roseville and Rocklin. Filter by city, or zoom into a specific neighborhood.
Understand when and where odors are most active. Spot patterns to plan your outdoor activities.
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Odor reports tend to peak in the late afternoon and evening hours, likely due to temperature inversions that trap ground-level air. Landfill and farm odors are the most commonly reported types across both cities.

OdorWatch is a community-powered tool to help track and share information about unpleasant outdoor smells in real time. Whether it's a nearby landfill, a farm, or an unknown source — your reports help everyone in Roseville and Rocklin stay informed.
OdorWatch helps you track smells with your neighbors — but for official investigations and corrective action, use these city and county resources.
Tip: Filing a report with OdorWatch helps your neighbors stay informed. Filing a report with the city or county creates an official record that can trigger inspections and corrective action. We recommend doing both when you experience a significant odor event.
This tool is based on community-reported observations and is not an official environmental or health monitoring system. Reports are submitted anonymously by community members and have not been verified by any government agency or scientific body. OdorWatch should not be used as the sole basis for health or safety decisions. If you believe you are experiencing a hazardous situation, please contact your local emergency services or environmental agency.
Every report helps your Roseville and Rocklin neighbors make better decisions. It only takes a minute.
By using OdorWatch you agree to our Terms of Service and Privacy Policy. We collect anonymous odor reports and use privacy-friendly analytics — no personal data required.