Questions and Answers Oakland InnerOuter March 26_2020.pdf

OAKLAND INNER AND OUTER HARBOR DREDGING PROECT

ALAMEDA COUNTY, CALIFORNIA

AS OF: 27 March 2020 Page 1 of 6

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P720B0003

The intent of this section is to provide questions & comments received from interested parties on the above solicitation, and our responses to those questions and comments. It is possible that the information below does not reflect 100% of the questions and responses. The questions and comments do not necessarily represent questions received from any particular contractor.

Questions and responses are provided for information only and are not made part of the solicitation. Only a formal amendment (SF30) to the solicitation changes the solicitation.

Changes to any previous responses in this document will be struck-through and new, updated responses will be provided as appropriate.

No. RFP Section Question Response

Section 01 11 00

1.1.1 d. in Section 01 11 00 states, "If the KO approves dredging outside of the environmental window, all material must be placed at a permitted beneficial use upland site that benefits aquatic species, as approved by the National Marine Fisheries Service." Can the Government please provide a list of NMFS-approved, permitted beneficial use upland sites? If not, please indicate how bidders should identify sites that meet this requirement.

Montezuma Wetland and Collinan Ranch are the two approved upland sites that have been used in the past.

Section 01 32

3.1.3.7 Onsite Vessel-to-Vessel

Calibration in Section 01 32 23 states, "Repeated cancellation of vessel to vessel calibration sessions will not be tolerated and will result in the Government requesting that the 3rd party survey company be replaced with a company that will comply with the contract requirements." Is a 3rd party survey company required for this work?

Yes, a 3rd party company is required for this work and all payment surveys. In the case of repeated cancellation of vessel to vessel calibration sessions, the Government will request that the 3rd party survey company be replaced with another 3rd party company that will comply with the contract requirement.

Section 01 57

19.01 43

1.5 Special Environmental Requirements

in Section 01 57 19.01 43 states, "Dredging outside of the Environmental Window is prohibited." However, language in Section 01 11 00 indicates that dredging outside of the environmental window may be allowed with approval from the Contracting Officer. Is dredging outside of the environmental window prohibited altogether for this dredging event, or will it be allowed with Contracting Officer approval?

Dredging outside the windows must be approved by the Contracting Officer.

AS OF: 27 March 2020 Page 2 of 6

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P720B0003

Section 35 20 23

3.2.6.4 Overflow/Decant, Spillage and

Leakage in Section 35 20 23 states, "Overflow/decanting at the dredge site will be controlled in accordance with the requirements in Section TEMPORARY

ENVIRONMENTAL CONTROLS FOR

DREDGING IN SAN FRANCISCO BAY

01 57 19.10 43." The referenced section only mentions that scow overflow/decant may be stopped if it appears to be affecting the light thresholds in the eelgrass areas.

Aside from this restriction, will scow decanting be allowed as determined necessary by the Contractor from day 1 of dredging?

Yes, that is correct. No limit on decanting for this project.

Section 35 20 24

3.4.5 San Francisco Deep Ocean Disposal

Site (SF-DODS) in Section 35 20 24 states "Disposal quantity limits for SF-DODS are established on a project-specific basis. The Contractor shall limit disposal quantities to those amounts specified in the Government-provided regulatory guidance." May the Contractor assume that all material anticipated for this work can be disposed of at SF-DODS without exceeding disposal quantity limits?

All material can be placed in SF-DODS, there is sufficient capacity for all the material.

Here is the suitability determination for this year from the DMMO:

- All material is suitable for SF-DODS.

- All material except that from Sample Area 9 (Reach 10A) is suitable for reuse as wetland cover material. The material from Sampling Area 9 (Reach 10A) is suitable for reuse as wetland foundation material.

Sampling Area 9 (Reach 10A) is in the Outer Harbor from Station 96+00 to 111+00.

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QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P720B0003

AS OF: 27 March 2020 Page 4 of 6

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P720B0003

AS OF: 27 March 2020 Page 5 of 6

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P720B0003

AS OF: 27 March 2020 Page 6 of 6

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P720B0003