The weather in 2013 was remarkable in its consistency. Regardless of the season, it was just plain dry—winter, spring, summer and fall. In fact, 2013 set a new record low for rainfall. The Mt. Tamalpais Watershed received just 10.68 inches of rain last year, far lower than the prior record of 19 inches set in 1929 and significantly lower than the annual average of 52 inches.
Unfortunately, 2014 is bringing us more of the same so far. This January we received a barely measurable 0.01 inches of rain; average for the month is 10.86 inches.
Drought conditions now prevail in Marin and throughout the state. On January 17 Governor Brown called on all Californians to voluntarily reduce their water use by 20 percent. On January 21 the MMWD Board of Directors took that request a step further, asking customers to voluntarily reduce their water use by 25 percent.
Depending on total reservoir storage on April 1, that voluntary cutback will become mandatory. Unless a substantial amount of rainfall and runoff occurs between now and April 1, storage levels are projected to be below 40,000 acre-feet,* the level that triggers the mandatory rationing. Any mandatory rationing plan will be based on water consumption prior to 2014, so cutting back now will not result in any kind of penalty should mandatory rationing be enacted on April 1. See our Drought 2014 Information page for more.
Here are the current water statistics:
Reservoir Levels: As of January 31, reservoir storage is 42,127 acre-feet,* or 53 percent of capacity. The average for this date is 65,130 acre-feet, or 82 percent of capacity. Total capacity is 79,566 acre-feet.
Rainfall: Rainfall this fiscal year to date (July 1-January 31) is 3.80 inches. Average for the same period is 29.87 inches.
Water Use: Water use for the week of January 20-26 averaged 21.1 million gallons per day, compared to 16.8 million gallons per day for the same week last year.
Creek Releases: During the month of December 2013 MMWD released 439 million gallons, or a total of 1,346 acre-feet, into Lagunitas and Walker creeks in west Marin. We release water throughout the year to maintain adequate flows for the fishery per our agreements with the State of California.
Water use and reservoir figures can be found on our homepage.
*One acre-foot is 325,851 gallons.