Tri-Valley Creeks

a partnership for a sustainable tomorrow

July 2014: The Arroyo Mocho channel remains dry. There is no water flowing from the upper watershed. DWR has drained small amounts of water from the SBA but this limited flow only extends several hundred meters below the SBA turnout on Mines Road. No artificial stream recharge releases are anticipated until 2015. The Arroyo will remain dry until we get winter rains.

June 2014: The Arroyo Mocho channel remains dry. Two fires along the Arroyo Mocho burned the grass and underbrush adjacent to the Arroyo Mocho near Granada Native Gardens (Spot 6) and at a site above Holmes Street (Site 5). The City of Livermore removes the gravel deposits under Holmes Street. No artificial stream recharge releases are anticipated until 2015. The Arroyo will remain dry until we get winter rains.

May 2014: The Arroyo Mocho channel is dry except for a small amount of upper watershed runoff that percolates into the ground before the SBA turnouts.

April 2014: Zone 7 discontinued releasing water into the Arroyo Mocho and Arroyo Valle and the arroyos will be dry for the rest of the year.  A small volume of stream flow  remains  below Arroyo Road. This is due to the  high groundwater levels adjacent to the Arroyo Mocho which drain into the storm drains and flow into the Mocho at Arroyo Road. This will stop flowing in May.

March 2014: Zone 7 continued to recharge surface water into the groundwater basin to increase the amount of water in groundwater storage. There is stream flow on the Arroyo Mocho between the SBA turnout and Isabel. Zone 7 estimates that there is about 82,000 acre-feet of water in operational storage within the groundwater basin. No upper watershed runoff reaches the SBA turnout.

February 2014: Zone 7 reduced groundwater pumping to maintain water within the groundwater basin so that water would be available during summer months. Zone 7 continued to release surface water from the State Water Project into the Arroyo Valle and Arroyo Mocho to increase the amount of water stored in the local groundwater basin. There is some runoff from the upper Arroyo Mocho Watershed but it all percolates into the ground before reaching the SBA turnout.

January 2014: The Governor declared a State of Emergency due to Drought conditions and  requested 20% water conservation. The State Water Project reduced the allocation of new 2014 water from 5% to Zero. The State Water Project will still deliver the 17% of Carryover water (18,200 Acre-feet)  to Zone 7. Zone 7 Water Agency declared a local Drought Emergency and authorized the construction of two new wells to extract more of the 82,000 acre-feet of water stored in  the upper Operational Storage porting  of the local Groundwater Basin.

 

 

 

 

 

 

 

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Creeks to Bay Cleanup

THANK YOU 2016 Tri-Valley Creeks to Bay Clean-up Volunteers and Sponsors!

199 volunteers collected a total of 2,863.2 gallons of trash and 574.4 gallons of recyclables from 7 creek locations along 5.62 miles of
Livermore arroyos.

Noah’s Bagels, Costco, Rubio’s Coastal Grill, Rock House Pub and Grill, Orchard Supply Hardware, Home Depot, Ecofolia Design, Livermore Sanitation, California Coastal Commission and Program partners generously donated refreshments and supplies.

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