Hours & Directions

Central Contra Costa Sanitary District Offices and Treatment Plant

5019 Imhoff Place
Martinez, CA 94553
(925) 228-9500
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Hours of Operation

Emergencies & Treatment Plant: 24 hours
Headquarters: Monday-Friday, 8:00am-5pm
Permit Counter: Monday-Friday, 8am-5pm

Household Hazardous Waste Collection Facility

4797 Imhoff Place
Martinez, CA 94553
(800) 646-1431
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Hours of Operation

Residents: Monday-Saturday, 9am-4pm
Reuse Room: Monday-Saturday, 9am-3:30pm
Small Businesses: Monday-Saturday, by appt only

Operations are closed on the following holidays:

• 01/01/10  New Year's Day
• 01/18/10  Martin Luther King Jr. Day
• 02/12/10  Lincoln's Birthday
• 02/15/10  Washington's Birthday
• 05/31/10  Memorial Day
• 07/05/10  Independence Day (observed)
• 09/06/10  Labor Day
• 11/11/10  Veterans' Day
• 11/25/10  Thanksgiving
• 11/26/10  District Holiday
• 12/23/10  District Holiday
• 12/24/10  Christmas Day Holiday (observed)
• 12/30/10  District Holiday
• 12/31/10  New Year's Day Holiday (observed)

HHW Facility is closed on the following holidays:

• 01/01/10  New Year's Day
• 01/18/10  Martin Luther King Jr. Day
• 02/12/10  Lincoln's Birthday
• 02/15/10  Washington's Birthday
• 05/31/10  Memorial Day
• 07/05/10  Independence Day (observed)
• 09/06/10  Labor Day
• 11/11/10  Veterans' Day
• 11/25/10  Thanksgiving
• 11/26/10  District Holiday
• 12/24/10 through 01/02/11 for Christmas and New Year's Holidays