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About Us
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About ACWD
Learn about ACWD's Board of Directors, history, water sources, and more.
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Backflow Prevention
Find information and forms regarding ACWD's Backflow Prevention Program.
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Community Presentations
Learn how to schedule a presentation for your community, civic, or political organization.
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Customer Service
Access your account, find information on bill payment options, learn how to start and stop your water service, and more.
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Development Services
Request new or modified water service or extensions to the public water system.
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Emergency Preparedness
Learn how to become “water-wise” and prepared for the next earthquake or disaster.
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News & Information
Read the latest news and information from the Alameda County Water District.
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Service Line Coverage Plan
Learn about HomeServe USA's service line insurance program for ACWD residential customers.
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Water Conservation
Learn about water conservation rebates, resources, and techniques.
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Water Rates Process
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Water Quality
Find a wide variety of information regarding drinking water quality in Fremont, Newark, and Union City.
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Alameda County Water District
Physical Address
43885 S Grimmer Boulevard
Fremont, CA 94538
Phone: 510-668-4200
Business Hours
Monday - Friday
8 a.m. to 5 p.m.
Lobby Hours
Monday - Friday
9 a.m. to 4 p.m.
For Water Emergencies, Call:
510-668-6500