Amend_002_Q_and_As_0002.docx

GOGA 167755/186589 – Vista Point Trail

Amendment 0002

Questions and Answers & Site Visit Attendees

Q1. Is builder's risk insurance required for this project? It is mentioned in Spec 01 26 01, 1.2H, but not in the Solicitation 1452.228-70 LIABILITY INSURANCE.

A1. No additional insurance is required above that described in the Solicitation (the risk insurance clause in Specification Section 01 26 01 - 1.2H is intended only as a definition of that term for the purposes of clarifying what may and may not be included in modification proposals).

Q2. In the RFP documents on sam.gov, "Sol_140P2024R0129.pdf" appears to be a superseded version of "B08_140P2024R0129_13_Jun_24.pdf." Should we ignore "Sol_140P2024R0129.pdf"?

A2. Only review and respond to B08_140P2024R0129_13_Jun_24.pdf solicitation.

Q3. What compressive strength is required for the concrete backfill for the soldier beams?

A3. Per Specifications Section 03 30 00 – 8, concrete backfill at soldier pile drilled shafts shall be a minimum of 28-day compressive strength of 4000 psi. Refer to Section 31 23 16 – 3 for lean concrete backfill above the top of drilled shaft, as shown on Detail 1, Sheet W6. Lean concrete backfill above the top of drilled shafts shall be a minimum of 28-day compressive strength of 500 psi.

Q4. How should debris from augers be dealt with? Are there protection plans in place the contractor must follow?

A4. Protections must be put in place to prevent debris from rolling down the slope.

Q5. Is there conduit at the 2nd gate beneath the ground?

A5. There is exposed conduit downslope and it is presumed to be underground through the trail (project area). The conduit is presumed to be defunct and can be removed if needed. Contractor will need to investigate the nature of the utility before removal if removal is necessary. If the utility is live and needs to be relocated, the contract will be modified to address additional time and costs incurred for relocation.

Q6. How should the lead contaminated soil be tested?

A6. Refer to the Removal Action Workplan attachment, pages 8-18.

Q7. Is the security guard on-site 24/7?

A7. No. Access past the security gate at the Northwest Parking Lot onto Lower Conzelman Road will need to be coordinated with the Golden Gate Bridge, Highway & Transportation District (GGBHTD).

Q8. Is there a cost associated with the GGBHTD Permit?

A8. Yes, the Right of Entry Permit has a one-time fee of $500.00.

Q9. The staging area is different than shown on the plans, where is the staging area?

A9. There are two areas. See Sheet G1 for location of the two staging/storing areas.

Q10. There are no utilities at the work site. Will the contractors have access to any fire hydrants?

A10. Yes. A park hydrant will be available at lift station 659 in Fort Baker (the developed area adjacent to the project site). The contractor will need to meter usage and use proper care in opening and closing the valve to prevent water hammer in the system. The cost will be $10.55 per 1,000 gallons, not to exceed 10,000 gallons per day.

Q11. Following the initial soil cut based on the depths provided in the soil removal action plan, who is responsible for the additional testing costs to verify that the contaminated soils have been adequately removed?

A11. The Contractor is responsible for all testing costs. References in the Removal Action Workplan to the “Environmental Contractor” or “EC” apply to the Contractor’s subcontractor (and apply to Contractor if the Contractor is not using a subcontractor for the testing and remediation activities).

Q12. The removal action work plan states that, “All generated wastes will be disposed of at facilities that have been selected in advance by the GGNRA.” Please provide these pre-approved GGNRA facilities so we can price the disposal in alignment with the acceptable disposal facilities.

A12. That sentence is in error and is hereby deleted from the Contract requirements. Recommended disposal facilities which may accept the waste are listed on pages 20-21.

Q13. Who is responsible for costs associated with air monitoring?

A13. The Contractor is responsible for air monitoring costs. References in the Removal Action Workplan to the “Environmental Contractor” or “EC” apply to the Contractor’s subcontractor (and apply to Contractor if the Contractor is not using a subcontractor for the testing and remediation activities).

During the weekend, paths SHALL be open.

ATTENDEES

Miguel Glazrza – Yerba Buena Eng mgalarza@yerba-buena.net

Robert Tanguileg – Case Pacific/YBE rtanguileg@casepacific.com

Lincoln Morrill – GBI/YBE estimating@gbi1914.com

Garrett Pecer - Hoseley estimating@hoseley.com