Title
Consider approving Amendment No. 8 to the Agreement for Professional Services with AECOM Technical Services, Inc. to increase the dollar amount by $1,254,464 for a new contract total not to exceed $2,900,153 to complete the Plunge Pool Erosion Protection Design at the Nacimiento Dam Spillway; and authorize the General Manager to execute the amendment.
(Staff Presenting: Mark Foxworthy)
Report
RECOMMENDATION:
It is recommended that the Monterey County Water Resources Agency Board of Directors:
Approve Amendment No. 8 to the Agreement for Professional Services with AECOM Technical Services, Inc. to increase the dollar amount by $1,254,464 for a new contract total not to exceed $2,900,153 to complete the Plunge Pool Erosion Protection Design at the Nacimiento Dam Spillway; and authorize the General Manager to execute the amendment.
SUMMARY/DISCUSSION:
An Agreement for Professional Services with AECOM Technical Services, Inc. to perform updated seismic stability and deformation analysis of the Nacimiento Dam embankment and underlying streambed sands and gravels (Exhibit A) was approved by the Board of Directors on May 18, 2020. The work includes drilling and material sample collection from the dam embankment and underlying foundation materials. The total amount payable for this work is $883,000. The Agreement also included a separate scope of work for annual safety surveillance and performance evaluation of San Antonio Dam (Exhibit B), which was completed in June 2021.
Amendment No. 1 was approved by the Board of Directors on July 19, 2021, to add a scope of work for annual safety surveillance and performance evaluation of San Antonio Dam (Exhibit D), which was completed in June 2022. Amendment No. 1 included an hourly rate increase of approximately 1.5 percent from the original Agreement.
Amendment No. 2 was approved by the General Manager on June 29, 2022, to extend the term of the Agreement from June 30, 2022, to June 30, 2025.
Amendment No. 3 was...
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