County government
Public Works — Household Hazardous Waste Resources
Napa County HHW resource guide. Household and business channels differ; confirm facility eligibility and accepted materials before travel.
Permanent HHW facility — household drop-off and business instructions (opens in a new tab)Official instructions
County-listed Devlin Road HHW facility. Household drop-off is Friday/Saturday 9 am–4 pm without appointment; business requirements are separate.
- Availability · HHW receiving exclusions
- The listed HHW facility excludes radioactive materials, explosives and ammunition.
Source & saved evidence
Waste service — HHW receiving exclusions
The facility accepts all types of household hazardous waste except radioactive materials, explosives and ammunition.
Agent source review: October 15, 2026 · Snapshot
6f647c874f8747b3
Before you start · 1 requirement & conditions
- Appointments · Household HHW drop-off
- Household HHW drop-off requires no appointment and has no fee.
Source & saved evidence
Waste service — Household HHW drop-off
Households: No appointment required; no fee.
Agent source review: October 15, 2026 · Snapshot
6f647c874f8747b3
Source & saved evidence
Waste service — Permanent HHW facility — household drop-off and business instructions
Households: No appointment required; no fee. Open every Friday & Saturday: 9 a.m. until 4 p.m.
Agent source review: October 15, 2026 · Snapshot 6f647c874f8747b3