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PG&E set to begin gas line tests in Mountain View

PG&E is mobilizing this week to begin pressure testing major gas pipelines in Mountain View -- one of the first two Bay Area cities to see a new round of gas pipe testing following the catastrophic explosion of a pipeline in San Bruno last year.

"Mountain View and Antioch are the first cities to be tested," said Mayor Jac Siegel. "I'm thrilled about that."

PG&E has scheduled two open houses next week for residents at Crittenden Middle School: on Monday, April 25, and Tuesday, April 26. Both meetings run from 5:30 to 8:30 p.m.

The actual testing work begins in May. PG&E spokesperson Joe Molica said PG&E would begin by testing 1.5 miles of line 132a, which is a "feeder line" that runs from Shoreline Golf Links to Crittenden Middle School.

The line runs under Shoreline Golf links, a Google campus, and from there follows Rengstorff Avenue, Plymouth Street and Sierra Vista Avenue before jogging southeast under a patch of homes to join a major gas line at the southern edge of Crittenden Middle School. That major gas line is line 132, the line that runs up and down the Peninsula and exploded in San Bruno.

Molica said PG&E would also be testing 44 miles of line 132 in the future.

Lines will undergo "hydrostatic" testing by pressurizing them with water for eight hours and checking for leaks. Molica called it the "gold standard" for testing gas lines.

It's possible that some residents may see something similar to a water main break if one fails, but workers will be closely monitoring pressures in order to prevent such an occurrence from getting out of control, Molica said. PG&E would pay for any damage caused by the testing, he said.

Those with concerns about the smell of gas can call PG&E at 1-800-743-5000.

Comments

Posted by Outraged!, a resident of Old Mountain View
on Apr 20, 2011 at 8:11 pm

PG&E should also start accepting energy bill payments by credit cards online!


Posted by Do you not live in M.V., a resident of Blossom Valley
on Apr 21, 2011 at 12:22 pm

Rengstorff Boulevard?


Posted by Dave, a resident of Sylvan Park
on Apr 21, 2011 at 2:08 pm

If it's a high pressure line, I didn't know they were under houses.


Posted by Pat, a resident of Monta Loma
on Apr 21, 2011 at 2:45 pm

What about the line that runs down Middlefield Rd from San Antonio to
Rengstorff?


Posted by No Cassandra, a resident of Stierlin Estates
on Apr 21, 2011 at 3:18 pm

I'm glad PG&E will be giving us advance notice. It will give us a chance to cart our valuables (and other precious cargo) to a safe distance. How they'll deal with relighting all the pilot lights is the least of my worries. I'm more than idly curious how the pressures in the surrounding gas mains will be affected, and how the water will be isolated from them. Also, according to the very fuzzy maps I've seen, Line 132 has a big split-off right near the three gas stations at the intersection of Shoreline Bl and Middlefield Rd. If one or both lines pass through the MEW Superfund Area, excavating fragile old gas lines will be especially ticklish there. Maybe we can hire some of the brave souls who have been trying to tamp down the Fukushima Daiichi nukes?


Posted by JOHN, THE SAFETY GUY, a resident of Old Mountain View
on Apr 21, 2011 at 8:01 pm

THESE LINES SHOULD NOT BE "OVER-PRESSURED" WITH WATER--THEY ARE WAY TOO OLD--BUT SHOULD INSTEAD BE INSPECTED USING "PIGS" WHICH ARE VIDEO-TYPE MOBILE DEVICES THAT CAREFULLY EXAMINE EVERY SPOT INSIDE THESE OLD PIPE LINES, DETECTING ANY CORROSION OR "BAD WELDS", LIKE WERE FOUND NEAR THE HORRIFIC SAN BRUNO BLAST. SOMEONE BRING THIS UP AT THE TOWN HALL MTG!!


Posted by the_punnisher, a resident of Whisman Station
on Apr 25, 2011 at 8:25 pm

the_punnisher is a registered user.

Every HP gas distribution lines IN OTHER STATES ARE CLEARLY MARKED AS SUCH!

IT IS AGAINST THE LAW TO REMOVE THEM!

It's obvious the the MURDERERS ( PG&E ) and developers removed them; I see MARKED gas line right of ways ( with NO houses on them ) all over the Denver Metro Area.

The San Bruno MURDER SITE will possibly avoid a repeat, but hydrostatic tests will probably need an INDEPENDENT MONITOR present to make sure PG&E doesn't fudge the data the way that has already been done.

Remember Bhopal....

Another note: Safety devices are supposed to CLOSE THE VALVES instead of FULLY OPEN THE VALVES upon sensing a pressure drop....

That makes it PREMEDITATED MURDER....


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