W912WJ21B0017 Amendment 0012.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

This amendment is to provide responses to RFIs. All other aspects remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 4

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

16C. DATE SIGNED

BY 24-Aug-2021

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912WJ21B0017

X 9B. DATED (SEE ITEM 11)

16-Jul-2021

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer 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 Items 8 and 15, and returning 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 telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

24-Aug-2021

CODE

U S ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA RD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912WJ21B0017

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMEND 0012

1. Reference drawing CD101;

a. “Remove & Dispose of Storm drain and pipe for new stockpile storm water system”, since if cannot be determined from the information provided – please advise the linear foot and types of pipe required to be removed for this contract.

b. “Grind & Spread Asphalt (20,000 sf)”, if the volume of material to be placed in the North Parking Lot is less than the capacity of this proposed stockpile area, can the contractor grind and spread less asphalt than 20,000 sf, please clarify the area of this work for this contract.

Response: a. Note has been revised to be in line with catch basin modification discussed on sheet C- 102.

Extent of Demolition subject to contractor's proposed plan for modification of temporary storm water drainage feature.

b. No, the contractor must grind/spread/prep/etc. the asphalt area as shown on the contract drawings.

2. Reference drawing CD104, “Decommission Monitoring Well (Well ID LW-13)”, since it cannot be determined from the information provided, how many monitoring wells are to be decommissioned? Please provide information on the monitoring wells to be decommissioned to determine what is needed to decommission.

Response: Please see response to RFI #15, Amendment 0010.

3. Reference drawing C-102, “North Parking Lot Material Stockpile with 47,000 CY maximum capacity (see notes 1-4)”, since this contract is a less CY scope – can the footprint of this stockpile be decreased? Please clarify the stockpile limits as they apply to this contract.

Response: Yes. The plans show the total available capacity within the stockpile area.

4. Reference drawing C-501, there is no reference to silt fence on this drawing;

a. Is silt fence required for this contract?

b. Please identify the limits of silt fence as it applies to this contract

Response: Silt Fences may be needed based upon the contractor's approved environmental protection plan. It is the contractor's responsibility to determine the appropriate locations and lengths to ensure compliance with specification section 01 57 20.

5. On drawing G-102 note 6, states minimum of 12” of topsoil”, yet on drawing C-102 note 1 states 6” of topsoil required. Please clarify the topsoil thickness.

Response: The contractor can use 12" or top soil or a liner. Sheet C-102 is updated to remove the 6" reference.

6. Reference drawing C-501, detail A4, please clarify where the erosion control blanket is required for this contract.

Response: Erosion Control Blankets may be needed based upon the contractor's approved environmental protection plan. It is the contractor's responsibility to determine the appropriate locations and sizes to ensure compliance with specification section 01 57 20.

7. Reference drawing CD102, “Remove and dispose of existing wood shed and short concrete walls”, is the contractor to assume the shed to be removed has no asbestos or lead?

Response: Please see response to RFI #21, Amendment 0010.

8. G-102, reference access roads through Southern Parking Lot to the North Parking area, may the access roads constructed at these locations remain in place at the end of this contract for future use?

Response: No. The contractor must remove the access roads as part of the site restoration activities identified in Bid Item 0001.

9. Similar to above, may bins constructed remain in place at the end of this contract for future use?

Response: No. The contractor must remove the sediment management bins as part of the site restoration activities identified in Bid Item 0001.

10. Is there well pump test data or purge rate data from GWS events in the vicinity of the excavation area that could be provided to aid in dewatering planning/design?

Response: The Government does not have access to this information. For bidding purposes, the Contractor should make their best estimate.

11. Please reference Drawing C-502 detail E1 Note #3 and Detail A1 Note #4 both reference Drawing

C-100 for additional E&S requirements. Drawing C-100 was not included in the drawings issued to date, please provide.

Response: Please see response to RFI #3, Amendment 0010.

12. Please reference Specification 01 57 20 and 01 57 23 concerning E&S Controls and confirm that:

a. Silt Socks are required along either side of Temporary Haul Roads build on existing paved surfaces?

b. Silt Fence are required along either side of Temporary Haul Roads build on earthen surface?

c. Inlet Protection is required at all CB and Yard Drain inlets along the alignment of Temporary Haul Roads?

d. Straw Bales are required along the crest and bottom of both side of the completed Outfall Ditch?

e. Silt Socks are to be provided around the perimeter of the Material Stockpile area in the North Parking lot?

Response: It is the contractor's responsibility to determine the appropriate locations and lengths to ensure compliance with specificiation section 01 57 20.

a. Based on the contractor's means and methods, as well as materials, determine when to control siltation into existing catch basins, stormwater control systems, or resources areas.

b. Silt Fences may be needed based upon the contractor's approved environmental protection plan and SWPPP.

c. Based on the contractor's means and methods, as well as materials, determine when to control siltation into existing catch basins, stormwater control systems, or resources areas.

d. Based on the contractor's means and methods, as well as materials, determine when to control siltation into existing catch basins, stormwater control systems, or resources areas.

e. Based on the contractor's means and methods, as well as materials, determine when to control siltation into existing catch basins, stormwater control systems, or resources areas.

13. Please reference Drawings CD-101 and CD 104 and provide size details of the Light Pole Bases to be demolished including depth.

Response: Photos provided to depict the details of the existing light poles to be demolished. Light poles and concrete bases shall be demolished to existing grade.

14. Please reference Drawing CD-104 indicating Removal and Disposal of Existing Fence on the south side of the South Parking lot. Please confirm that this is to include the existing precast wall that the fence was built upon.

Response: The existing pre-cast wall is to remain (no demolition). The buildings that were located in the vicinity have been demolished and the crushed concrete material has been spread to provide for equipment access from the parking lot down to the excavation work area.

15. Please confirm that CT Sales Tax Exemption certificate will be provided by the Government for the purchase of permanent materials incorporated into the work.

Response: It is the Contractor’s responsibility to determine tax liability. After contract award, the Contractor may complete and submit the applicable CT Sales Tax Exemption and send it to the Contracting Officer for signature.

16. Please reference Specification Section 02 61 23 Paragraph 3.3.1 requiring electromagnetic and sonic equipment be used to scan the construction site for locating utilities. Please confirm that in this context the construction site is only those portions of the site where excavation is to be perform (at Outfall 008 Ditch, across Stiffens Lane, as needed for site demo, etc.). Or does the Government desire that the entire site be scanned for utilities?

Response: The Contractor is only required to conduct investigations in areas where excavation is to be performed.

(End of Summary of Changes)