In this, the shortest month of the year, it didn’t take long for a concentrated series of heavy storms to significantly enhance our water supply picture. For four days starting February 6, the first “pineapple express” storm system of the year brought nearly 15 inches of rain to the district’s Lagunitas Creek watershed.
Phoenix, Lagunitas, and Bon Tempe reservoirs filled to capacity and runoff into the district’s other four reservoirs continued for a full week post-storm. Total reservoir storage increased more than 11,400 acre-feet,* or 27%, to 53,223 acre-feet by February 17. This is 67% of total storage capacity and 78% of normal storage. Current rains will bring these numbers even higher.
While MMWD’s water supply situation is vastly improved, the drought is still with us and certainly a serious issue in other parts of California. Governor Jerry Brown declared a statewide drought emergency in January and called for 20% voluntary cutbacks in water use by all Californians. The MMWD Board of Directors requested a 25% voluntary reduction.
This spring the board will reconsider water use restrictions based on April 1 storage. Given the improved reservoir levels, MWMD does not anticipate a need for mandatory restrictions. A voluntary reduction may still be needed for 2014, although the level could change. See our Drought 2014 Information page for more.
Here are the current water statistics:
Reservoir Levels: As of February 26, reservoir storage is 53,590 acre-feet,* or 67% of capacity. The average for this date is 70,363 acre-feet, or 88% of capacity. Total capacity is 79,566 acre-feet.
Rainfall: Rainfall this fiscal year to date (July 1-February 26) is 22.87 inches. Average for the same period is 39.06 inches.
Water Use: Water use for the week of February 17-23 averaged 14.6 million gallons per day, compared to 17.3 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