DEPARTMENT
Infrastructure Division
AGENDA NO.
9e
MEETING DATE
September 13, 2022
APPROVAL:
COMMISSION
SECRETARY
Donna Hood
AGENDA ITEM
Public Utilities Commission
City and County of San Francisco
Construction Modification: Consent Calendar
Project Manager: Bryan Dessaure
Approve Increase to Construction Cost and Duration Contingencies for WD-2825R, Alameda Creek Recapture Project
Summary of Proposed
Commission Action:
Approve an increase of $ 2,600,000 to the contract cost contingency , and an increase of 252 calendar days to the contract duration contingency for Contract No. WD -2825R, Alameda Creek Recapture Project; and authorize the General Manager to approve future modifications to the contract for a total contract amount of up to $24,062,650 and a total contract duration of up to 853 consecutive calendar days (approximately two years four months).
Background: In the Alameda Creek Recapture Project (Project) , the San Francisco Public Utilities Commission (SFPUC) is constructing facilities to recapture water that the SFPUC releases from Calaveras Reservoir , which then bypasses the Alameda Creek Diversion Dam (ACDD) , as required by federal and state environmental regulatory permits. The instream flow schedules help protect the Central California Coast Steelhead species, which is designated as threatened under the Federal Endangered Species Act, in the creeks below the ACDD and Calaveras Dam. The recaptured water maintain s the historical contribution from the Alameda Watershed to the SFPUC Regional Water System in accordance with the City and County of San Francisco’s existing water rights.
The Project is one of two final project s that SFPUC is constructing under the Water System Improvement Program (WSIP), and SFPUC reports its progress annually to the State.
The project-specific objectives are as follows:
• Recapture the water that would have otherwise been stored in Calaveras Reservoir that is released from Calaveras Dam and bypasses the ACDD to meet instream flow requirements, thereby Contract: WD-2825R, Alameda Creek Recapture Project
Commission Meeting Date: September 13, 2022
maintaining the historical annual transfers from the Alameda Watershed system to the SFPUC Regional Water System.
• Minimize impacts on water supply during drought, system maintenance, and in the event of water supply problems or transmission disruptions in the Hetch Hetchy system.
• Maximize local watershed supplies.
• Maximize the use of existing SFPUC facilities and infrastructure.
On April 13, 2021, by Resolution No. 21- 0058, this Commission awarded Water Enterprise, Water System Improvement Program Contract No. WD -2825R, Alameda Creek Recapture Project to Anvil Builders, Inc. (Anvil). The original contract amount was $19,511,500, and the original contract duration was 547 consecutive calendar days.
Description of Scope of
Work:
The contract work location is in Sunol, California. The contract work consists of furnishing and installing:
• Four 400-horsepower vertical turbine pumps on floating barges with mooring systems;
• 16-inch-diameter high density polyethylene flexible discharge pipelines extending from each vertical turbine pump to a new pipe manifold;
• 100-foot-long, 36-inch-diameter welded steel pipeline; • Throttling valves;
• Underground valve vault;
• Flow meter;
• Electrical control building;
• Electrical transformer;
• Electrical, communication and HVAC systems; and
• Paving and site restoration.
Anvil is performing c ontract work for the Alameda Creek Recapture Project is being performed under construction contract WD-2825R and is approximately 16% complete as of the end of July 2022. (Percent complete is based on the original contract amount plus approved change orders to date.)
Changes and
Modifications to the
Contract:
Modifications Nos. 1 to 7 increased the contract amount by $407,362 (within the original contingency) to implement various changes related to differing site conditions, including exploratory work on the existing Sunol Pump Pipeline to locate suitable point of connection for facility effluent pipe due to existing pipe corrosion, valve vault revisions, increase in quantity of pipe demolition material, and site entrance safety improvements including paving and permitting, for a total contract amount of $19,918,862, with no change to the contract duration.
Recommended Increase to Contract Cost and Duration Contingency Staff recommends approval of an increase of $2,600,000 to the existing cost contingency and an increase of 252 calendar days to the existing Contract: WD-2825R, Alameda Creek Recapture Project
Commission Meeting Date: September 13, 2022
duration contingency to perform owner-requested condition assessment and associated structural lining repairs on the existing 36 -inch Sunol Pump Pipeline to which the facility will, to address impacts related to on-going slope erosion near the proposed pipe alignment, to account for delays in receiving the Department of Water Resources Encroachment Permit, and to account for a larger required size of winch and anchor pier due to the pipe realignment , for a total contract amount of up to $24,062,650 and a total contract duration of up to 853 consecutive calendar days.
Budget & Costs: Funding: Project No. 10015281, Alameda Creek Recapture Project and 10015072, Pipeline Inspection and Repair
Original Contract Amount: $19,511,500
Original 10% Cost Contingency: $1,951,150
Requested Additional Cost Contingency: $2,600,000
Total Revised Contract Cost Limit: $24,062,650
Schedule: Notice-to-Proceed Date: June 21, 2021
Original Contract Duration: 547 consecutive calendar days Original 10% Duration Contingency: 54 consecutive calendar days Requested Additional Duration Contingency: 252 calendar days Total Revised Contract Duration Limit : 853 consecutive calendar days
Compliance with
Chapter 14B: Local
Business Enterprise
Utilization and Non-
Discrimination In
Contracting Ordinance:
The Contract Monitoring Division established a 14% Local Business Enterprise (LBE) subcontracting requirement for this contract. The contractor committed to 15.6% LBE participation in its bid submittal.
Recommendation: SFPUC staff recommends that the Commission adopt the attached resolution.
Contract: WD-2825R, Alameda Creek Recapture Project
Commission Meeting Date: September 13, 2022
Site Map:
Alameda Creek Recapture Project – Location Maps
PUBLIC UTILITIES COMMISSION
City and County of San Francisco
RESOLUTION NO.
WHEREAS, On April 13, 2021, by Resolution No. 21-0058, this Commission award ed Contract No. WD-2825R, Alameda Creek Recapture Project to Anvil Builders, Inc.; and WHEREAS, The construction contract Notice-to-Proceed date was June 21, 2021; and WHEREAS, The original contract amount was for $19,511,500 and the original contract duration was 547 consecutive calendar days; and
WHEREAS, Staff recommends an increase of $2,600,000 to the contract cost contingency and an increase of 252 calendar days to the contract duration contingency to perform owner - requested condition assessment and associated structural lining repairs on the existing 36- inch Sunol Pump Pipeline to which the facility will connect, for cost and schedule impacts relat ed to on-going slope erosion near the proposed pipe alignment, to account for delays in receiving a Department of Water Resources Encroachment Permit, and to address cost impacts for increase of winch and anchor pier sizes due to the pipe realignment; and WHEREAS, Contract Monitoring Division established a 14% Local Business Enterprise (LBE) subcontracting participation for this contract, and the contractor committed to 15.6% LBE participation in its bid submittal; and
WHEREAS, Funds are available from Project No. 10015281, Alameda Creek Recapture Project and 10015072, Pipeline Inspection and Repair Project; now, therefore, be it RESOLVED, That this Commission hereby a pproves an increase of $ 2,600,000 to the existing contract cost contingency and an increase of 252 calendar days to the existing contract duration contingency, for Water Enterprise, Water System Improvement Program funded Contract No. WD-2825R, Alameda Creek Recapture Project , for a total contract cost contingency amount of $4,551,150 and a total contract duration contingency of 306 calendar days; and be it FURTHER RESOLVED, That this Commission hereby authorizes the General Manager, or designee, to consider and, if appropriate, to approve any future modifications to the contract amount for a total contract amount of up to $24,062,650, and a total contract duration of up to 853 consecutive calendar days.
I hereby certify that the foregoing resolution was adopted by the Public Utilities Commission at its meeting of September 13, 2022.
Secretary, Public Utilities Commission