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Mayor of Hillsborough, home of CSUS, concerned about the safety of PG&E's H.P. Gas pipelines

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  • From Joe Brennan
    If the Mayor of Hillsborough, Tom Kasten, is concerned about PG&E s high pressure pipelines in his city, shouldn t our City leaders be concerned about the PG&E
    Message 1 of 1 , Jul 2, 2012
      If the Mayor of Hillsborough, Tom Kasten, is concerned about PG&E's high pressure pipelines in his city, shouldn't our City leaders be concerned about the PG&E high pressure gas transmission pipeline running near the CSUS proposed site of their new school? Let our Planning Commision and City Council hear your voices; here are the email addresses:

      City Council :  CityCouncil@... 

      Planning Commission:  planningcomm@... 

      City Manager, Greg Scoles:  gscoles@...

      FROM THE COVER of today's (July 2, 2012) San Francisco Chronicle

      "PG&E finds more than 500 trouble spots on pipelines of Line 132, the pipe that exploded in San Bruno on Sept. 9, 2010. 

      PG&E’s planned solution is to replace some lines and test others with high-pressure water. The state ordered PG&E to conduct such inspections for some lines after the San Bruno disaster, and last year the company checked more than 160 miles of pipe. 

      But PG&E also says some of the over-pressurized lines won’t need to be tested or replaced — a position that critics call a violation of federal law."


      Mayor worried 

      "Hillsborough Mayor Tom Kasten, whose city is bisected by both Lines 109 and 132, was disturbed by the company’s findings. He said he has met repeatedly with PG&E to ask that it relocate transmission pipes that in some cases run through residents’ yards. 

      “They have a history of either not knowing or not caring about their system,” Kasten said. 

      “They have to demonstrate to everybody now that they knew they were wrong in the past and did not place a high priority on the integrity of these lines, and they have to focus on re-establishing that trust.” 

      The hydro tests that PG&E plans to conduct are considered the most reliable way of detecting bad welds, such as the one that failed in 2010 in San Bruno. PG&E largely avoided the inspections before the disaster, assuming that the main threat to its pipes came not from faulty welds but from corrosion, which can be detected by other tests."


      "Peninsula pipes 

      The PG&E study found that parts of Line 132, the pipe where a faulty weld ruptured in the San Bruno explosion, are at risk of a similarly disastrous failure. PG&E has taken about 2 miles of the line around the disaster site out of service, but the rest of the 51-mile pipe running from Milpitas to San Francisco is still carrying gas. The sections at risk include at least three spots where a Chronicle analysis determined that PG&E regularly elevated gas pressures to illegal levels before the blast — extensions off the main line just north of the blast site and near its southern terminus in Milpitas. 

      PG&E will either hydro- test or replace the at-risk segments, according to company officials. 

      On Line 109, which also extends from Milpitas to San Francisco, the study found more than 80 at-risk sections totaling a combined length of more than 10 miles. PG&E plans to hydro-test or replace portions of the line this year. 

      Another Peninsula pipe, Line 101, has eight segments that could be prone to a disastrous failure, as does Line 108 from Sunol to Livermore, the PG&E assessment says. The company plans either to replace or test problem areas on those lines by next year."

      Tel: 650-595-1175
      Sent from my iPad
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