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'water supply'

Nov 10

What’s up with Conservation?

Posted to MMWD Blog: Think Blue Marin on November 10, 2016 at 2:08 PM by Ann Vallee

by Dan Carney, Water Conservation Manager

October storms delivered three times the average rainfall for this time of year, leading many people to wonder if the five-year drought is finally over, and if the state will lift water restrictions. Since January 2014, the Governor has issued eight Executive Orders related to the ongoing statewide drought. The latest order will expire at the end of January 2017, and the State Water Resources Control Board is in the process of developing a new proposal for mandatory reductions in urban water use that will presumably take effect in February. Until then, MMWD customers are asked to continue their voluntary conservation efforts.  

Fortunately, because MMWD customers have done an exceptional job of conserving, water storage in our seven reservoirs is nearly 18% above average for this date (November 10) —even though annual rainfall has been below average since 2011! 

Conserving water is one of the least expensive, most environmentally friendly and socially responsible actions you can take to support a healthy Marin-friendly lifestyle. Every time you adjust your landscape sprinklers, replace a leaky faucet or upgrade to efficient appliances it saves water, energy and money. Please check out the many conservation programs and services available to you by visiting, or call us at 415-945-1520. Thank you for helping protect our most valuable natural resource!
May 25

Reservoirs Above Average as Summer Approaches

Posted to MMWD Blog: Think Blue Marin on May 25, 2016 at 11:31 AM by Ann Vallee

Thanks to customer conservation efforts and near-normal rainfall for the 2015-16 winter, MMWD's reservoir levels are well above average for this time of year. Average storage for this date is 88%; actual storage is 97%.

Here are the latest water statistics:

Reservoir Levels: As of May 24, reservoir storage is 77,026 acre-feet,* or 97% of capacity. The average for this date is 70,292 acre-feet, or 88% of capacity.

Rainfall: Rainfall this year to date (July 1, 2015 - May 24, 2016) is 49.70 inches. Average for the same period is 51.20 inches; last year on this date we had 39.64 inches.

Water Use: Water use for the week ending May 24 averaged 23.77 million gallons per day, compared to last year when water use for the week was 21.53 million gallons per day.

Creek Releases:
During the month of April 2016 MMWD released 389 million gallons, or 1,194 acre-feet, into Lagunitas and Walker creeks in west Marin for habitat enhancement.    
Visit our Water Watch page for daily updates.

*One acre-foot is 325,851 gallons 
Mar 25

FAQ: Can MMWD Build Bigger Reservoirs?

Posted to MMWD Blog: Think Blue Marin on March 25, 2016 at 4:26 PM by Ann Vallee

Especially  in  a  rainy  year  like  this  one,  customers  ask  if  we  can  enlarge  our  reservoirs to hold more water by raising the dams. While creating additional storage may seem like good insurance against drought, it is not as simple as it sounds.

MMWD’s rights to divert and store water are granted by the State of California. The state has authority over how much water we can legally take from our local creeks to store in our reservoirs. As part of our agreement with the state, MMWD is required to maintain a certain amount of water in the creeks for fish habitat. This means  we  actually  release  water  every  year  from  our  reservoirs  into  the  creeks,  but  with  good  reason.  Endangered  coho  salmon  and  other  species  living  in  the  creeks need an adequate flow of water to ensure their health and survival. In 1980, when the district last requested state permission to expand storage, the result was 15 years of studies and hearings prior to reaching a court-ordered agreement that required  us  to  release  more water  annually.  In  summary,  since  the  state  will  not  allow MMWD to divert and store more water, increasing the size of our reservoirs would not provide any benefit.

The  simplest  and  least  expensive  way  we  can  maximize  our  water  supply  is  through conservation, not by creating new or bigger reservoirs. That’s why we ask our customers to use water wisely and why we offer a variety of conservation programs and rebates to help. Thank you for doing your part!