Tuesday, November 22, 2011

Happy Holidays

The staff of the San Francisco Public Utilities Commission would like to wish you and your families a very Happy Thanksgiving.

We hope you enjoy our great Hetch Hetchy tap water while you celebrate this week.

Friday, November 4, 2011

"Hetch Hetchy Aqueduct: Big Fixes for Big Quakes" airing Tonight and 11/9 on KQED Quest






“Hetch Hetchy Aqueduct: Big Fixes for Big Quakes” will air tonight, Friday, November 4th on KQED Channel 9 on “This Week in Northern California” at 7:30PM.

The longer version will air on Channel 9 this upcoming Wednesday, November 9th at 7:30PM.

The KQED Quest documentary features the San Francisco Public Utilities Commission's (SFPUC) Water System Improvement Program to rebuild and seismically update the Hetch Hetchy Water System.

Thursday, November 3, 2011

Harry Tracy Water Treatment Plant: Construction Update

Work to excavate the site of our new 11 million gallon Treated Water Reservoir continues at our Harry Tracy Water Treatment Plant in Millbrae.  This reservoir, which holds drinking water before it enters the distribution system, is being relocated within the plant to a more seismically stable area.

Additional truck traffic along Crystal Springs Road will continue, as materials are delivered and the excavated soil is removed.

The plant must maintain water treatment operations 24 hours a day, 7 days a week throughout the 4 years of construction. Coordinating the continued operation of the plant while reconfiguring and relocating systems is a complicated challenge for our contractors and operations staff!

We are making every effort to minimize construction impacts to your neighborhood. Please let us know your concerns and comments by contacting us at (866) 973-1476…or by attending our Open House on November 14th.

Informational Open House on construction at our Harry Tracy Water Treatment Plant
Date: Monday, November 14th
Time: 7:00 p.m. to 8:30 p.m.
Location: San Bruno Recreation Center
Community Room, 251 City Park Way
Directions: The San Bruno Recreation Center is located inside San Bruno City Park near the intersection of Crystal Springs Rd. and Oak Ave.

Our project team will be on-hand to answer any questions you have about the Hetch Hetchy Regional Water System, current system-wide upgrades, as well as construction project updates. This is an informal drop-in event – stop by any time! 

Monday, October 31, 2011

Landscaping Work to Begin Soon at New Crystal Springs Bypass Tunnel South Shaft in San Mateo

In the next few weeks, crews will return to the South Shaft site of the New Crystal Springs Bypass Tunnel project near Polhemus Road in San Mateo to begin adding a native seedmix to the meadow.

The process, called hydroseeding, involves spraying a mixture of seeds, water and nutrients onto an area of dirt. In some cases, the mixture may be a bright green or blue color.

Watch this blog for more details and a timeframe for the process.

Thursday, October 27, 2011

Sawyer Camp Trail 2-day Closure -- November 2nd and 3rd

Sawyer Camp Trail will be closed for two days on November 2nd and 3rd (Wednesday and Thursday).

During the closure, our project team will deliver additional rock to our new access road segments, and continue seismic upgrades on our Crystal Springs/San Andreas Pipeline. Water in this pipeline has been “turned off” for the months of October and November to facilitate this work.

Notice the unusual green color on some slopes along the trail? This is a temporary, first step of re-vegetation. This bright green soil stabilizer will turn brown and blend in with the surrounding landscape as it dries. During next year’s dry season, we’ll be re-planting native plants in these locations.

One more thing of interest to trail users: the Lower Crystal Springs Dam concrete pours will continue through mid-November. The biggest day will be on Tuesday, November 1st when approximately 65 trucks will deliver cement using Skyline Blvd., Crystal Springs Road and Polhemus Road. Much smaller pours (just a few trucks) are expected on October 28th (Friday) and October 31st (Monday).

Construction of a larger stilling basin, Lower Crystal Springs Dam.


Please do not hesitate to call with your questions or concerns, 24 hours a day (866) 973-1476.

Tuesday, October 25, 2011

Sawyer Camp Trail Open

The entire Sawyer Camp Trail is now open! You will see some construction vehicles driving on the trail daily for the next several weeks. The largest truck is expected to be a water truck, necessary to control dust at the pipeline work locations next to the trail.
                                                                    
Additional short trail closures are expected this fall. Please subscribe to http://sawyercamptrail.blogspot.com/ to get automatic email updates!

Neighbors have asked us about the night work currently taking place on Highway 280 above the Lower Crystal Springs Dam. This is a Caltrans project to improve drainage on the freeway. Caltrans expects the work to be completed by November 15th, prior to the official start of the rainy season.

Please call us 24 hours a day with any questions or concerns at (866) 973-1476.

Monday, October 24, 2011

South San Francisco Patch: Work Continues to Enlarge Crystal Springs Reservoir Capacity



Posted via South San Francisco Patch http://bit.ly/mTvmUf

October 24, 2011

by Dave Colby

On a day that many in the Bay Area felt a magnitude 3.9 temblor, work continued last Thursday to re-pipe, rebuild, and earthquake-proof the infrastructure of the Crystal Springs Reservoir.

Crystal Springs serves primarily as a backup water source for the northern portion of San Mateo County and for the City of San Francisco. In a typical year, 15 percent of its water is used by residents; 85 percent is left in storage. The water held in the reservoir comes from the Hetch Hetchy valley near Yosemite, and from local watersheds.

The work that began in early April has a two-fold purpose. The first is to protect this primary source of backup water that would be needed in case any of the unsteady faults in the Bay Area rupture enough to create a crippling earthquake.

Piplines that would ultimately take the emergency water from the reservoir to our taps are old.

"Some of our pipelines and other facilities are aging and need to be addressed," says Maureen Barry, communications manager for the San Francisco Public Utilities Commission. "Many of them were built early in the 20th century and have reached the end of their useful life."

Ironically, the reservoir lays virtually on top of the notorious San Andreas fault.

The second purpose is to add nine feet of height to the dam in Lower Crystal Springs. Doing so will restore the capacity of the reservoir to its “historic levels”, enabling the capture of more summer Sierra runoff in years of abundant snowpack, and conversely, helping to better cope with anticipated drought conditions in dry years.

The San Francisco Public Utilities Commission, which manages Crystal Springs, has employed contractors on the $320 million project through the summer, work that in some cases will continue until 2013.

"Some of these facilities we haven't been able to take out and maintain because we have such a demand for water," says Barry. "Redundancy is now being built in so we can do a better job when something breaks down and still deliver water."

The project work on Crystal Springs is being built to withstand an earthquake of magnitude 7.8, the largest ever recorded on the San Andreas fault.

For hikers, Sawyer Camp Trail - adjacent to the reservoir - has been closed several times during the summer because of the project. Barry says there may be more trail closures coming, as work crews hustle to beat the rainy season.