Amendment 1.docx

SAP

State of South Carolina

Amendment 1

Solicitation:

Date Issued:

Procurement Officer:

Phone:

E-Mail Address:

Mailing Address:

5400025192 05/24/2023 Shannon C. Hicks 803-898-3483 hickssc@dhec.sc.gov

SC DHEC

Attn: Procurement Services Division 301 Gervais Street, 4th Floor Columbia SC 29201-3073

DESCRIPTION: ACA Cleanup UST Permit # 08562, Former Rhodes Service Station 410 Spartanburg Hwy. S., Spartanburg, SC 29385

USING GOVERNMENTAL UNIT: South Carolina Department, Spartanburg Environmental Control

SUBMIT YOUR OFFER ON-LINE AT THE FOLLOWING URL: http://www.procurement.sc.gov

SUBMIT OFFER BY (Opening Date/Time): June 8, 2023/2:30 pm ET (See "Deadline For Submission Of Offer" provision)

QUESTIONS MUST BE RECEIVED BY: DEADLINE HAS PASSED (See "Questions From Offerors" provision)

NUMBER OF COPIES TO BE SUBMITTED: 1 (online preferred)

CONFERENCE TYPE: Non-Mandatory Pre-Bid DATE & TIME: May 18, 2023/10:00 am ET

(As appropriate, see "Conferences - Pre-Bid/Proposal" & "Site Visit" provisions) LOCATION: Microsoft Teams (online) Email Debra Thoma for meeting access instructions, no later than Wednesday, May 17, 2023/4:00 PM ET. thomadl@dhec.sc.gov

You must submit a signed copy of this form with Your Offer. By signing, You agree to be bound by the terms of the Solicitation. You agree to hold Your Offer open for a minimum of sixty (60) calendar days after the Opening Date.

(See "Signing Your Offer" provision.)

NAME OF OFFEROR

(full legal name of business submitting the offer) Any award issued will be issued to, and the contract will be formed with, the entity identified as the Offeror. The entity named as the offeror must be a single and distinct legal entity. Do not use the name of a branch office or a division of a larger entity if the branch or division is not a separate legal entity, i.e., a separate corporation, partnership, sole proprietorship, etc.

AUTHORIZED SIGNATURE

(Person must be authorized to submit binding offer to contract on behalf of Offeror.)

DATE SIGNED

TITLE

(business title of person signing above)

STATE VENDOR NO.

(Register to Obtain S.C. Vendor No. at www.procurement.sc.gov)

PRINTED NAME

(printed name of person signing above)

STATE OF INCORPORATION

(If you are a corporation, identify the state of incorporation.)

OFFEROR'S TYPE OF ENTITY: (Check one) (See "Signing Your Offer" provision.)

___ Sole Proprietorship ___ Partnership ___ Other_____________________________

___ Corporate entity (not tax-exempt) ___ Corporation (tax-exempt) ___ Government entity (federal, state, or local)

COVER PAGE - ON-LINE ONLY (MAR. 2015)

SAP

SAP

PAGE TWO

(Return Page Two with Your Offer) HOME OFFICE ADDRESS (Address for offeror's home office / principal place of business)

NOTICE ADDRESS (Address to which all procurement and contract related notices should be sent.) (See "Notice" clause)

Area Code - Number - Extension Facsimile

E-mail Address

PAYMENT ADDRESS (Address to which payments will be sent.) (See "Payment" clause)

____Payment Address same as Home Office Address ____Payment Address same as Notice Address (check only one) ORDER ADDRESS (Address to which purchase orders will be sent) (See "Purchase Orders and "Contract Documents" clauses)

____Order Address same as Home Office Address ____Order Address same as Notice Address (check only one)

ACKNOWLEDGMENT OF AMENDMENTS

Offerors acknowledges receipt of amendments by indicating amendment number and its date of issue. (See "Amendments to Solicitation" Provision)

DISCOUNT FOR PROMPT PAYMENT

(See "Discount for Prompt Payment" clause)

NSAP

AMENDMENT ONE

Solicitation No. 5400025192 DESCRIPTION: ACA Cleanup UST Permit # 08562, Former Rhodes Service Station 410 Spartanburg Hwy. S., Spartanburg, SC 29385

AMENDMENTS TO SOLICITION (JAN 2004)

(a) The Solicitation may be amended at any time prior to opening. All actual and prospective Offerors should monitor the following web site for the issuance of Amendments: www.procurement.sc.gov (b) Offerors shall acknowledge receipt of any amendment to this solicitation (1) by signing and returning the amendment, (2) by identifying the amendment number and date in the space provided for this purpose on Page Two, (3) by letter, or (4) by submitting a bid that indicates in some way that the bidder received the amendment. (c) If this solicitation is amended, then all terms and conditions which are not modified remain unchanged. [02-2A005-1]

QUESTIONS FROM OFFERORS – AMENDMENT (JUN 2017)

This solicitation is amended as provided herein, information or changes resulting from questions will be shown in a question–and-answer format. All questions received have been reprinted below. The “State’s Response” should be read without reference to the questions. The questions are included solely to provide a cross-reference to the potential offeror that submitted the question. Questions do not form a part of the contract; the “State’s Response” does. Any restatement of part or all of existing provision of the solicitation in an answer does not modify the original provision except as follows: underlined text is added to the original provision. Stricken text is deleted. [02-2A097-1]

The following prospective offeror questions and agency responses are hereby incorporated into the solicitation.

1. We request a complete, scaled Site Map showing the entire property, all monitoring wells associated with the project and any adjoining streets, etc.

State’s Response: All available maps are located in the technical file, which can be reviewed here: https://scdhec.gov/sites/default/files/media/document/08562A%28ALL%29.pdf

2. Clarification Needed Regarding Site Restoration.

On Page 22, item 10, EQUIPMENT, section C, it states the following:

10. EQUIPMENT

C. The area to be excavated is square shaped, and at a depth of 25 feet, with dimensions shown on Figure B in the Appendix. The expected volume to be removed is 3,912 cubic yards.

Since the map provided is not a scaled version, upon scaling up the drawing, the sketch showing the excavation area calculated to 71.5 ft x 65 ft x 25 feet (deep). Based on our calculations the volume to be excavated is actually 4,303 cubic yards and not 3,912 cubic yards as stated in the bid solicitation. Please clarify.

State’s Response: The provided cubic yards is an estimated volume based on the approximate measurements of 65 feet by 65 feet by 25 feet in depth. The actual volume removed will be dependent on the actual area the contractor removes.

3. Clarification Needed Regarding ORC and Amendments for 22 to 20 feet depth range On Pages 22 and 23, item 11, Backfill & Completion, it states the following:

The open excavation pit shall be 25 feet deep. 4,500 pounds of Oxygen Releasing Compound (ORC) shall be mixed with coarse gravel/rock and placed in the bottom of the open excavation pit from 25 to 22 feet below grade. Addition of the ORC shall be completed in accordance with the manufacturer’s instructions. The excavation shall continue to be backfilled in compacted lifts with subsoil type S-1 structural fill material. Thickness of the lifts should be determined based on the compaction method to be utilized. No amendments to the structural fill shall be added shallower than 20 feet below grade.

Further, it is stated that no amendments to the structural fill shall be added shallower than 20 feet below grade. It does not specify whether there should be any amendments (ORC or otherwise) blended with the structural fill from 22 to 20 feet below grade. Are we to assume that in this depth range (22 to 20 feet below grade) there are to be no amendments? Or if there are any amendments required – please specify the pounds needed and blend ratio if any.

State’s Response: The intent is to place the ORC in the 25-to-22-foot interval; however, there is some flexibility provided during the excavation activities. The intent is not to have any ORC less than 20 feet below grade.

4. Clarification Needed Regarding Site Restoration On Page 23, item 15, Site Restoration, it states the following:

15. SITE RESTORATION: Disruption to the site’s normal business will be kept to a minimum. The grass currently present in the area of excavation will need to be replaced with sod after completion of corrective action. Photographs of the site before, during and after excavation shall be included in the final Excavation Report.

We wanted to get clarification that any adjacent areas that may have concrete or asphalt, which may be affected during excavation activities can be replaced with gravel. That it is not expected of us to pave the affected concrete areas with concrete once the excavation and backfilling activities are completed. Please clarify whether a surface gravel layer is acceptable in all the excavation affection areas that have concrete or asphalt.

State’s Response: The replacement should be with like material. Any deviation must have written approval from the property owner.

5. In lieu of sod, would hydroseed be an acceptable means for site restoration? From experience with sod, it requires a lot of irrigation for several weeks for it to take and will require someone to water it for that amount of time.

State’s Response: Any deviation from the requirements specified must have written approval from the property owner.

6. Any shoring system for an excavation deeper than 20 feet requires design by a P.E. per OSHA regulations (29 CFR Part 1926, Subpart P). Any effective shoring system design depends on the subsurface conditions (soil, rock, and groundwater). Is there geotechnical soil boring data to support the design of an excavation shoring system? If not, will the State’s period of performance milestones be revised to accommodate for proper geotechnical investigation and subsequent design of the shoring system and dewatering system?

State’s Response: Any available soil boring data is available in the technical file which may be reviewed here: https://scdhec.gov/sites/default/files/media/document/08562A%28ALL%29.pdf If any extension for the CAP preparation is required, the contractor may submit a written request for an extension with applicable justification.

7. Can the excavation dimensions be altered from what is specified if it is required for safety? The eastern boundary of the excavation is immediately adjacent to an active tank basin and other heavy surcharge such as the concrete and pavement in the active station lot in addition to potentially significant dynamic loads such as cars traveling in the service station parking lot and tanker trucks that will be filling the active USTs.

State’s Response: The excavation should be kept as close as possible to the original dimensions without compromising the integrity of the existing UST system. The area to be excavated is located on the property with the current active UST system.

8. Will alternative bids be entertained to deploy the ORC? In example, a much smaller limited excavation for some source area removal followed by injection of ORC as a slurry via a network of injection wells.

State’s Response: The bid request is for the specifications as written.

9. The compaction standards outlined in the solicitation require a materials technician and workers to enter an excavation that is at an unsafe depth. Can this compaction testing at depth requirement be waived if a certified materials inspector observes and documents the backfill procedure and mechanical compaction methods? The inspector would conduct and document compaction tests once the excavation is at a safe depth to enter.

State’s Response: Previous excavations to a similar depth have not had this concern. However, a variance can be submitted in the Corrective Action Plan for review.

10. Do the adjacent property owners know about the proposed excavation dimensions?

State’s Response: Public notice will be conducted once a corrective action plan is received, and notice will be provided to all affected property owners.

11. Does the backfill soil need to be sampled (VOCs, SVOCs, etc) prior to import? A standard proctor will be collected for compaction testing reasons but analytical is not specified for the backfill.

State’s Response: The backfill coarse gravel/rock and structural fill should be sourced as “clean” and should not require sampling for potential contamination.

12. The solicitation species 3,912 cubic yards of soil removal, is there a max tonnage allowance?

State’s Response: No

13. What is the maximum depth of the replacement monitoring wells?

State’s Response: The replacement wells should be installed to a depth of approximately 20 feet with a 10 feet screen interval. This depth may vary depending on the depth at which groundwater is encountered post excavation.

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