BOARD AGENDA MEMORANDUM
SUBJECT:
Title
Purchase of Condition Assessment Services for the Pacheco Conduit and On-Call Inspection Services for Pre-Stressed Concrete Cylinder Pipe Under a Sole Source Agreement with Pure Technologies U.S., Inc.
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RECOMMENDATION:
Recommendation
A. Approve a sole/single source purchase of services from Pure Technologies U.S., Inc. (Pure Technologies), to provide electromagnetic inspection and an acoustic fiber optic monitoring system for the Pacheco Conduit; and for on-call electromagnetic inspection services for a not-to-exceed total amount of $3,500,000 over a four year period; and
B. Authorize the Interim Chief Executive Officer (CEO) or her designee/successor to negotiate and execute an agreement with Pure Technologies for these condition assessment and on-call electromagnetic inspection services.
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SUMMARY:
On April 15, 2016, the Board held a special meeting to discuss the major pipeline failure on a section of the Santa Clara Conduit that had occurred in August 2015. This conduit forms a portion of the 30 mile Federal San Felipe System pipeline, which transports Central Valley Project water from San Luis Reservoir to District facilities.1
The failure of this section of the pipe highlighted durability issues inherent in the use of the Pre-stressed Concrete Cylinder Pipe (PCCP). The potential of this pipe to experience failure has become increasingly acute. District staff analysis of the problem provided recommendations to increase frequency of inspections to identify structurally-distressed pipe sections; undertake proactive monitoring of PCCP in the Pacheco Conduit and other PCCP pipelines; and the need for prompt repair of severely distressed pipe sections that were discovered during previous inspections.2
Approximately 77 miles of the 145 miles of pipelines and tunnels managed by the District are PCCP. The District first began using specialized electromagnetic inspection technology in 2002, assessing the b...
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