Your WaterFlood and Stream ManagementWatershed and Environment


Early 2016 winter storms appear promising but, based on the quantity of water in reservoirs, California remains in drought. On February 2, 2016, the state Water Resources Control Board adopted an emergency regulation that, pending approval by the Office of Administrative Law, extends existing conservation regulations through October with a few limited adjustments. The state board promises to revisit the regulation by May 1 to address any changes in water supply conditions.

Zone 7 and its retail water suppliers serving Pleasanton, Livermore, Dublin and Dougherty Valley are continuing to require all customers to conserve during the drought. Find more specific information at:

  • To view Zone 7's 2015 drought flier, click here.
  • For rebate information, click here.
  • To sign up for e-news, which provides updates on the drought, click here.

Zone 7's 2015 Annual Review of Sustainable Water Supply was presented to the board on April 15, 2015. Among other things, it clarified the need for water retailers serving Pleasanton, Livermore, Dublin and Dougherty Valley to achieve conservation consistent with the governor's requirements. To view a brochure that outlines many of the conservation actions from the plan, click here

The following practices are prohibited during the Drought Emergency:

  • Watering while it’s raining or less than three days after a rain event.
  • Watering more than twice per week.
  • Any irrigation that results in ponding, flooding, excessive runoff or marshy conditions.
  • Watering during daylight hours, due to the higher evaporation rates.
  • Refilling (topping off) swimming pools that are uncovered when not in use.
  • Using hoses without quick-acting positive shutoff nozzles.
  • Hosing off sidewalks, driveways, building exteriors, etc.

Check with your water retailer (the City of Pleasanton, the City of Livermore, California Water Service Company in Livermore, or the Dublin San Ramon Services District) for other requirements that may apply in your neighborhood.

Drought's effect on water quality

Water quality deteriorates when it travels through a relatively dry Delta. Impacts include more taste- and odor-causing algae and higher hardness. Regardless of these changes, your water continues to meet all state and federal drinking water standards by a comfortable margin.

Lawn trees can and must be saved during the drought. What you can do:

  1. Deeply and slowly water mature trees 1-2 times per month with a simple soaker hose or drip system toward the edge of the tree canopy -- NOT at the base of the tree. Use a Hose Faucet Timer (found at hardware stores) to prevent overwatering.
  2. Young trees need 5 gallons of water 2-4 times per week. Create a small watering basin with a berm of dirt.
  3. Shower with a bucket and use that water for your trees as long as it is free of non-biodegradable soaps or shampoos.
  4. Do not over-prune trees during drought. Too much pruning and drought both stress your trees.
  5. Mulch, Mulch, MULCH! 4-6 inches of mulch helps retain moisture, reducing water needs and protecting your trees.