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Alameda Watershed East Bay Facilities Tour Itinerary Sunol CAC

Wednesday, April 11, 2018

9:00 a.m. Group Meets in parking lot at Sunol Regional Trailer 8653 Calaveras Road, Sunol Board Vehicles

9:15 -10:15 a.m. Tour of Sunol Valley Water Treatment Plant

10:15-10:30 a.m . Transit to Alameda East Portal

10:30 to 11 :00 a.m. Alameda East Portal Tour

11 :00 to 11: 15 a.m. Transit to Turner Dam (San Antonio Reservoir)

11 :15 to 11 :45 a.m. Tour of Turner Dam

11 :45 to noon Transit back to Regional Trailer.

Tour Ends Mark Farrell Mayor Ike Kwon President Vince Courtney Vice President Ann Moller Caen Commissioner Francesca Vietor Commissioner Anson Moran Commissioner Harlan L. Kelly, Jr. General Manager

Services of the San Francisco Public Utilities Commission

OUR MISSION: To provide our customers with high-quality, efficient and reliable water, power and sewer services in a manner that values environmental and community interests and sustains the resources entrusted to our care. Sunol Valley Regional Projects

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HETCH HETCHY WATER SYSTEM Fact' Bheet ~Services of !~1tSan Francisco IMPROVEMENT PROGRAM Public Utilities Commission

April 2018 www.sfwater.org/sunolvalley

What's Happening in Sunol Valley Happy spring! 2018 has been a very dry year in the valley. The good sunny weather has allowed our Sunol Valley projects teams to continue the important work to seismically upgrade the facilities that deliver drinking water to 2.6 million Bay Area customers. These projects are part of the $4.8 billion Water System Improvement Program (WSIP} . The San Francisco Public Utilities Commission (SFPUC} is the owner and operator of the Hetch Hetchy Regional Water System . In addition, upgrades to our Sunol Yard are also underway this year.

Calaveras Dam Replacement Project Work is still underway to replace the existing dam with a seismically-robust dam in order to restore its historic storage capacity. Rebuilding this dam and filling the reservoir is crucial to the reliable water supply of our customers. Over seven million cubic yards of earth and rock materials have been excavated. Since the completion of the spillw~y in April 2016, our construction team has completed several key components of the dam . Crews have completed a new outlet tower, a shaft, and a new 78-inch pipeline incased in concrete to be able to take water out of the reservoir. Our construction teams have also drilled 150 feet down into the rock below the future dam and injected grout to seal up the foundation and left and right abutments. The dam is currently at an elevation of 694 feet, which is 2/3 of its final height. During the winter months, the embankment work has stopped but we are working on some of the dam's support facilities such as the stream maintenance building, the downstream toe electrical building and the outlet works. The embankment work will resume in March 2018. The entire project is expected to be complete in mid-2019. Recapture Project The proposed project would recapture a certain volume of water that would be released and bypassed at Calaveras Dam and Alameda Creek Diversion Dam. The recaptured water WOl;Jld be pumped from an existing quarry pit (Pit F2) in the Sunol Valley.

The recaptured water would be transferred to the SFPUC water system via either the San Antonio Reservoir or the Sunol Valley Water Treatment Plant. The recapture operation would be conducted Fish Passage Facilities within the Alameda within the SFPUC's existing pre-1914 appropriative Creek Watershed water rights.

Construction for the Fish Passage Facilities within the A specific portion of the Draft Environmental Impact Alameda Creek Watershed began mid-2016. The Report will be recirculated with planned approval in Calaveras Reservoir can collect water from Alameda December 2018. Construction is expected to begin Creek by means of the Alameda Creek Diversion Dam in mid-2019 and last for approximately 20 months. (ACDD), and the 1.8-mile-long Alameda Creek Diversion Tunnel, which empties directly into the Sunol Corporation Yard Long Term Reservoir. Upgrades Construction of upgrades to our Sunol Corporation The project includes fish passage facilities and other Yard (located on SFPUC lands near the Sunol Water improvements to the Alameda Creek Diversion Dam. Temple) began February 2017 and is expected to be This important work will support restoration of last 18 months. During this time, the majority of steelhead trout to the watershed above the Alameda our staff will be located in temporary trailers at the Creek Diversion Dam by constructing a fish ladder. property that was the former Sunol Valley Golf Course. What to Expect during Construction The project site is located upstream of the East Bay Please note that the Sunol Water Temple will be Regional Park District Sunol Regional Wilderness on closed during construction to protect the safety of SPFUC lands. Park patrons will see increased members of the public passing through the area. construction traffic along Camp Ohlone Road from Alameda Creek Watershed Center in Sunol Garn to dusk. Temporary trail closures will occur intermittingly for the safety of the public to allow for The estimated construction cost of the Watershed large trucks and road improvements. Center was included as part of the proposed FY 19 budget approved by the SFPUC Commission in The project is approximately 65% complete and February. Final approval for the FY 19 budget will project completion is expected in fall 2018. come from the San Francisco Board of Supervisors and Mayor in spring 2018. Look for future announcements once the FY 19 budget is final.

For more information Sunol Native Plant Nursery 24 hour answer line (866) 973-1476 Construction of the Native Plant Nursery is almost [email protected] complete. The new nursery area will have one green [email protected] house, one shade house and a temporary growing Follow us online for the latest updates area. This is the first nursery built and operated by Sfwater.org/sunolvalley the SFPUC. Project will be completed in May 2018.