Your WaterFlood and Stream ManagementWatershed and Environment

Zone 7 stands ready to provide businesses and residents with information, resources and in some cases, rebate incentives for become more water efficient. We're in this together!

   sow_square.jpgCalifornia's Water Conservation Resource


 wwgdn-scrnTri-Valley Water-Wise Gardening Website


 awe-member horizDedicated to the efficient and sustainable use of water. Learn more.


A video from the Save Our Water program uses contemporary music and graphics to educate Californians on water use and and move them to conserve. The video, “Saving California’s Water,” presents facts and statistics on water consumption in a modern and fast-paced format. For example, California has the 15th highest per-capita water consumption in the nation, yet close to 90% of residents say they are very or somewhat willing to conserve water at home.



Contact the water conservation specialist at your retailer (i.e. the agency that sends you your water bill). Zone 7 Water Agency also can help with your questions and provide additional information.

California Water Service Company


City of Livermore


Dublin San Ramon Services District


City of Pleasanton


Zone 7 Water Agency



trout.jpgSomething's Fishy in the Alameda Creek Watershed!

Did you know? Oncorhynchus mykiss (rainbow trout, steelhead trout) is a unique species in that individual fish develop differently depending on the enviornment. All trout hatch in gravel-bottomed, fast-flowing, well-oxygenated rivers and streams. Those that stay in fresh water their entire lives are called rainbow trout. Those that migrate to the ocean and back are called steelhead, and they develop a much more pointed head, become more silvery in color, and typically grow much larger than the rainbow trout that remain in fresh water. Steelhead are quite agile, and can jump as much as 10 vertical feet in favorable conditions!

Historically, fish stockings on Arroyo del Valle and Arroyo Mocho created rainbow trout fisheries in the upper reaches of these streams, and small populations still exist today. It's unknown if the trout that reside in the upper watershed (including a significant population in Calaveras Reservoir) have retained any anadromous (ocean-migrating) characteristics.

Steelhead trout were listed under the federal Endangered Species Act as a threatened species in in 1997, and this threatened status was reaffirmed in 2006. The Central California Coast steelhead population includes, among other areas, all naturally spawned anadromous steelhead populations below natural and manmade impassible barriers in the drainages of San Francisco Bay.


For the Fish

In the early 2000s, Zone 7 installed fish ladders along Arroyo las Positas, which could help create suitable steelhead habitat should steelhad migrate to the Valley arroyos after downstream improvements (including removal of barriers) are made to Alameda Creek downstream.

Zone 7 has been working closely with an Alameda Creek Fisheries workgroup, a collaboration of roughly a dozen agencies that formed to address the local implications of the Endangered Species Act listing. The primary benefit of a collaborative fisheries effort for Zone 7 and other participating agencies is regulatory assurance and protection from potentially violating provisions of the Endangered Species Act in the course of operations and maintenance of the watershed. In addition to Zone 7, members include the Alameda County Water District, San Francisco Public Utilities Commission, the Alameda Creek Alliance, the East Bay Regional Park District, the National Marine Fisheries Service, the California Coastal Conservation and the California Department of Fish and Game. For more information, click here.

Meanwhile, the National Marine Fisheries Service is preparing a plan to address the threatened steelhead species, both in our watershed and beyond. Zone 7 and other Bay Area agencies are participating in a joint effort to provide NMFS with relevant information about steelhead habitat enhancement potential in order to establish realistic, site-specific actions. To support these efforts, Zone 7 has been identifying potential barriers to steelhead migration in Arroyo Mocho and Arroyo del Valle. 


To view Zone 7's main Watershed & Environment page, click here.

  • See Zone 7's new tri-fold flood preparedness brochure by clicking here.
  • Remove any dead trees or brush.
  • Keep all storm drains, roof gutters, pipes, downspouts, driveway culverts and drainage ditches free of debris.  
  • Ensure your drainage is directed toward the street's stormdrain system.
  • If gutters are filling, use a rake, broom or shovel to remove debris from the storm drain opening, being sure to leave the grate in place.
  • Landscaping is the best protection against slides. If your home is on a bare-soil hillside, you can protect it by punching straw into the soil with a shovel, or securing sheets of woven burlap with stakes. Correct any cracking or slippage as soon as possible. Directing drainage downslope onto bare soil can cause slope instability.
  • Keep your car fueled and disaster supplies handy.
  • For flood insurance information, call your insurance agent or the National Flood Insurance Program (1-800-638-6620).
  • The San Francisco Chronicle had a recent article noting that Federal Emergency Management Agency is encouraging Californians buy flood insurance before El Niño hits, even if they live in low- to moderate-risk areas where it is not federally required. For more information, click here.
  • Check out the state Department of Water Resources website, California Flood Preparedness.

To learn about typical Zone 7 flood preparedness activities, click here.  

Who to Contact

For Zone 7 issues, call 925-454-5000 during normal business hours (Monday-Friday, 8 a.m. to 5 p.m.). After hours, call 925-447-6704. Note that you may be referred to one of the agencies below, if appropriate. In an emergency, call 911.

Where do I get sandbags?

Sandbags can be obtained from the following agencies. Be sure to bring a shovel!

  • City of Dublin (24/7 to city residents and businesses), 925-833-6630
    • Corporation Yard, 5600 Scarlett Ct., Dublin
    • Public Safety Complex, 6363 Clark Ave., Dublin
  • City of Livermore (24/7)
    • Maintenance Service Center, 3500  Robertson Park Road, Livermore, 925-960-8020
    • Fire Station #6, 4550 East Ave., Livermore
    • Fire Station #8, 5750 Scenic Ave., Livermore
  • City of Pleasanton Operations Service Center, 3333 Busch Road (M-F, 7 a.m. to 3:30 p.m.), 925-931-5500
  • Alameda County Public Works Road Maintenance Dept., 4825 Gleason Dr., Dublin (M-F, 7 a.m. to 3:30 p.m.), 925-803-7007. If no answer, call Sheriff's Dispatch with emergency, 510-667-7721.
  • Zone 7 Water Agency (no shovel needed)
    • Administrative Building, 100 North Canyons Parkway, Livermore (24/7), 925-454-5000
    • Patterson Pass Water Treatment Plant, 8750 Patterson Pass Road, Livermore, 925-447-6703
  • Sunol Glen Elementary School, 11601 Main Street, Sunol

How do I fill and use sandbags?


Routine Maintenance & Emergency Repairs    
Most cost of routine repair and maintenance is funded by property taxes, although the agency also receives state and federal grant funding. For federally declared storm disasters, Zone 7 may also apply for reimbursement from the Federal Emergency Management Agency or the U.S. Army Corps of Engineers.

New Growth Pays for System Expansion
Development fees are Zone 7's primary source of revenue for flood-protection capital improvements. Developers pay the drainage fee to mitigate the additional stormwater runoff that can result from additional pavement.

Development-fee revenues are put toward flood-protection projects identified in the Stream Management Master Plan.

The new Flood Protection and Storm Water Drainage Development Impact Fee Ordinance went into effect in May 2009, replacing the previous SDA 7-1 Program. To view the ordinance and fee information, click here.

To view Zone 7's main page for Flood Protection & Stream Management, click here.