Sol_140FC323R0023_Amd_0002.pdf

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140FC323R0023

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1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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Falls Church VA 22041 5275 Leesburg Pike FWS, Construction A/E Team 3 FWS, Construction A/E Team 3

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Falls Church VA 22041 5275 Leesburg Pike FWS, Construction A/E Team 3 FWS Constr A/E 3

10/06/20230002

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

10/06/2023

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Project Location is: Yukon Delta National Wildlife Refuge, Bethel AK 99559.

The Magnitude of Construction is between $1,000,000 and $5,000,000.

LIST OF CHANGES:

The purpose of this amendment is to answer follow up questions received that were generated from the answers provided in amendment 002. Three additional CLINS were added as a result.

All other terms and conditions remain unchanged.

Period of Performance: 07/31/2024 to 07/30/2029

Continued ...

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Anthony Kuntz

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 6

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

140FC323R0023/0002

00060 Soil with PCBs 1 CD

00070 Soils with DDT 1 CD

00080 Additional Soils contaminated with fuel oil above 1 CD

4000 cubic yards

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

Sponsored by GSA

FAR (48 CFR) 53.110

Question 1-Clarification requested on CLIN 003 analytical per the notes below. The BGES report stated other contaminants may be present and Q&A for 13 stated PFAS/PFOS will be required for characterization phase. Can the government please identify all analytical required for the CLIN 003?

Such as, DRO, RRO, GRO, SVOC, VOC, RCRA Metals, PCB, PFAS/PFOS.

• Q&A in Amendment 1.

i. Question 2- Can we assume that the GAP analysis is the Conclusions section of the BGES report? Answer: Yes, this is correct.

1. Per the conclusions in the BGES-“Due to the high PID readings at the site and reported past use of pesticides, PCBs and solvents at the subject property, contaminants other than DRO may be present withing this area and it is recommended that additional characterization sampling be performed in order to properly characterize soils for disposal and to delineate horizontal and vertical extent of contamination.”

ii. Questions 13-Will the government require characterization of the site for PFAS/PFOS as part of the characterization phase? Answer: This was not listed on the original request, however due to the fire that occurred onsite and it previously being a military base. A screening for PFAS/PFOS is requested.

Answer: The contractor will have to develop a Sampling Plan and submit to ADEC for approval. I would recommend reviewing the sampling performed by BGES as this sampling was approved by ADEC for the fuel oil spill. Around the foundation of the building additional sampling would include PCB’s, lead, PFAS/PFOS, and DDT.

The contractor shall review the State of Alaska Field Sampling Guidance (January 2022) and Site Characterization Work Plan and Reporting Guidance for Investigation of Contaminated Sites (March 7, 2017) to determine how to develop their plan. The contractor is responsible for developing a plan that is acceptable to ADEC and responsible for all cost associated with the plan.

Question 2-Can the government please identify the proposed number of characterization samples required in CLIN 003 and for what analytical. This help the contractors ensure they are capturing the correct LOE and ensure the government is evaluating bidders’ response that follows the SOW objectives.

Answer: The contractor will have to develop a Sampling Plan and submit to ADEC for approval. I would recommend reviewing the sampling performed by BGES as this sampling was approved by ADEC for the fuel oil spill. Around the foundation of the building additional sampling would include PCB’s, lead, PFAS/PFOS, and DDT.

The contractor shall review the State of Alaska Field Sampling Guidance (January 2022) and Site Characterization Work Plan and Reporting Guidance for Investigation of Contaminated Sites (March 7, 2017) to determine how to develop their plan. The contractor is responsible for developing a plan that is acceptable to ADEC and responsible for all cost associated with the plan.

Question 3- As part of CLIN 003 it is highly likely that ADEC will require additional GW characterization.

Does the government want monitoring wells installed? If so, how many samples and for what analytical?

Answer: The contractor will have to develop a Sampling Plan and submit to ADEC for approval. A minimum of 6 monitoring wells will need to be installed. Wells shall be installed in affected areas and sentinel wells shall be installed in the direction of ground water flow to identify if any material is leaving the site. I would recommend reviewing the sampling performed by BGES as this sampling was approved by ADEC. Around the foundation of the building additional sampling would include PCB’s, lead, PFAS/PFOS, and DDT.

Note: Per discussion with ADEC, it would be acceptable to remove soil (i.e., 3 inches down) along the edge of the building at create stockpiles of material. That material can be tested (number of samples would be based on size of stockpile) and determined if it is considered contaminated. Multiple piles could be made and tested.

Note: The next layer of soil would also need to be tested if contaminates above the standard are identified during the previous sampling.

Question 4- Is it the governments intent to have the characterization samples under CLIN 003 collected at surface and or subsurface. If subsurface samples are required, can the government please note that in the amendment that subsurface characterization samples are required via. by drilling methods or describe methods to be used? If subsurface drilling is required, can the government please state how may soil borings are required.

Answer: Please see previous answer.

Question 5- In the Q&A it was noted that landfarming can be utilized for onsite treatment. In review of the GFI and known possible other COC, it is highly likely that ADEC will deny the use of a land farm for known COC such as PCB, metals and DRO concentrations over max allowable. Allowing a land farm option is at a high risk to the government without identifying a performance-based milestone for treatment vs. removal and disposal which is least risk to the government. In addition, the land farm requirements for BIA DRO levels and other COC would require GW monitoring, soil be placed on a 20-mil HDPE liner and a leachate collection system. If the government confirms that landfarming is acceptable, can they please identify the requirements for the bidders of what will be required for landfarming and that this will be a performance base payment milestone for successful treatment of soils.

Answer: The bid shall provide a cost for removal of contaminated soil that can be used if material is identified.

The contractor shall provide a cost per cubic yard for disposal of:

Soil with PCB’s:

Soils with DDT:

Soils with PCB’s and DDT:

Additional Soils contaminated with fuel oil (above 4000 cy):

The contractor shall follow the ADEC Guidance on landfarming. At a minimum the soil shall be turned twice a year and treated.

The bid shall provide the cost to perform work for each year that contractor is estimating it shall take to complete the treatment. The contractor shall provide the cost to move the soil back to the site and dispose of the liner.

Questions 6-If landfarming/onsite treatment is acceptable, can all soil be left in place in the treatment cells/treatment area(s) following treatment? If not, where would the government like the soil to be placed?

Answer: No, the contractor will be responsible to move the soil to the remediation site and spread over this area. The contractor will be responsible for disposing of the plastic liners from the landfarming site.

Question 7-If landfarming/onsite treatment is acceptable, will the open excavations need to be backfilled while treatment of soils takes place?

Answer:

Yes, the hole will need to be backfilled while treatment of soil takes place. The change in elevation from the surrounding area shall be less than two feet. This will allow clean fill to be placed over this area.

Question 8:

Q&A #8. There is known friable asbestos in the soil under the foundation of building 413, will this soil be removed from the site prior to the start of this project? Answer: Yes, this is part of the current project.

If the current contractor is removing soil around and below the building foundation, and the foundation area has DDT and PCBs possibly in some of the soil this may be an issue for the current contractor. Any removal of soil at this site would need to comply with DEC’s Field Sampling Guidance, including sampling of the removed soil for waste disposal as well as excavation base and sidewall sampling at rates found in the Guidance. QUESTION: Assuming the current project includes the removal of soil below the foundation, can we assume that excavation base and side wall sample screening and laboratory test results will be made available for the DRO, DDT, and PCB contaminants?

Answer: The DRO was not found near the surface from sampling at the edge of the building, so unless contamination is noted they will not be testing for DRO. The concern about DDT and PCB is near the edge of the building. Sampling results will not be available until next summer when this work is completed. I will be working with the contractor to address the need for asbestos debris removal. The results for testing will not be available until next summer.

Question 9: After further review, we are seeking further clarification on RFI 27.

a. Does the Government plan on sending a revised SECTION B – SUPPLIES OR SERVICES AND PRICES based on the answer to RFI 27 to include optional CLINs for PCB and DTT contamination?

The contractor shall provide a cost per cubic yard for disposal of:

Soil with PCB’s:

Soils with DDT:

Soils with PCB’s and DDT:

Additional Soils contaminated with fuel oil (above 4000 cy):

b. If the government does send a revised schedule, how will this be evaluated with the rest of the pricing?

The cost of the project will be evaluated to determine best value. The cost of potential change orders will be evaluated for best value.