Title
Environmental Management Department recommending the Board accept the purchase and installation of the Geosynthetics for the Final Cover, Union Mine Landfill, 13.6-Acre Class III Old Landfill Area, Contract No. 031-PW-06/07-BOS as substantially complete; and Chairman be authorized to sign Notice of Completion for same under contract with D&E Construction, Inc.
RECOMMENDED ACTION: Approve.
Body
BUDGET SUMMARY: |
|
|
Total Estimated Cost |
|
$ |
|
|
|
Funding |
|
|
Budgeted |
$ |
|
New Funding |
$ |
|
Savings |
$ |
|
Other |
$ |
|
Total Funding Available |
$ |
|
Change To Net County Cost |
|
$ |
Fiscal Impact/Change to Net County Cost: There is no cost to the General Fund.
Background: The closure for the 15.8-acre Class III Old Landfill at the Union Mine Disposal Site specified by the Central Valley Regional Water Quality Control Board (CVRWQCB) in new Waste Discharge Requirements Order No. R5-2006-0020 was required to be completed by August 15, 2007. As part of the Final Closure Plan, submitted to the CVRWQCB on March 30, 2006, it was identified that 13.6 acres of the 15.8-acre Class III Old Landfill Area would receive final cover in the year 2007. The remaining 2.2 acres are scheduled to be closed in the year 2040, the projected closure date of the Class II active disposal area.
The closure of the Union Mine Landfill project was divided into three components for bidding purposes. The first component being the supplying and hauling of soil for the Vegetative Cover, the second being the supplying and installations of the Geosynthetics, and thirdly, the construction of the Final Cover.
On May 22, 2007, the Board awarded a contract to D&E Construction, Inc. of Visalia, California to purchase and install the Geosynthetics for the construction of the Final Cover, 13.6-acre old Union Mine landfill area in the amount of $624,637.50.
Reason for Recommendation: During the period of construction, the Board approved one change order on August 14, 2007, for $49,500 to supply and install additional geotextile material. Concurrently with this item, a subsequent, second change order is being presented for Board approval, issued to increase the payment by $28,875.12 to supply and install additional LLDPE geosynthetic liner and gecomposite drainage layer material. This project has been substantially completed and the attached "Notice of Completion" is submitted for approval by the Board and recordation with the Recorder-Clerk's Office.
Action to be taken following Board approval: Action to be taken following Board approval: Chairman of the Board shall execute the "Notice of Completion", the notice will be forwarded to the Recorder's Office for recordation and copy sent to the Environmental Management Department for distribution and administration.
Contact: Gerri Silva, Director, Environmental Management Department
Concurrences: