IBM17R0007-A002_Grit_Line_SBIWTP.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE RATING

2. AMENDMENT/MODIFICATION NO.

A002

3. EFFECTIVE DATE

07/17/2017

4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

IBWC_CODE

International Boundary and Water Commission

(IBWC)

USIBWC - ACQUISITIONS DIV

4171 NORTH MESA, STE. C100

EL PASO, TX 79902-1441

Philip Johnson

NAME

TEL.

johnsonpk@state.gov

EMAIL

6. ISSUED BY IBWC_CODE

International Boundary and Water Commission (IBWC)

USIBWC - ACQUISITIONS DIV

4171 NORTH MESA, STE. C100

EL PASO, TX 79902-1441

7. ADMINISTERED BY (If other than Item 6)

9A. AMENDMENT OF SOLICITATION NO.

IBM17R0007

CONTACT DUNS

CODE FACILITY CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, country, state and ZIP Code) (X)

X 9B. DATED (SEE ITEM 11)

06/21/2017

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X XThe above numbered solicitation is amended as set forth in item 14. The hour and date specified for receipt of Offers is extended, is not extended, 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 items 8 and 15, and returning __0__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 ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

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

CHECK ONE 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.__0__X

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

The purpose of this amendment A002 is as follows:

1. Add another site visit for potential Contractors. The site visit shall be held on 1 August 2017 at the SBIWTP, 2995 Clearwater Way, San Diego, CA 92154 at 9:30 AM PDT. See Continuation page 2.

2. Incorporate potential Offeror's questions and Government answers. See Continuation pages 2 and 3.

3. The closing date has hereby been extended. Proposal are due NLT 1:00 PM MDT 18 August 2017.

4. Revise Grit Line Specification 7/14/2017

Offers shall complete and sign Box 30A, B, and C of Standard Form 1442 and Box 15A, B, and C of all Amendments to submit with their Proposal.

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

Philip Johnson

(Signature of person authorized to sign)

15B. CONTRACTOR/OFFEROR 15C. DATE SIGNED

By (Signature of Contracting Officer)

16B. UNITED STATES OF AMERICA 16C. DATE SIGNED

07/15/2017

NSN 7540-01-152-8070

Previous edition unusable

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

IBM17R0007

L.01 Site Visit

(a) All potential proposers are requested to attend the Pre-Proposal Conference/Site Visit to be held at: International Boundary and Water

Commission (IBWC) International Wastewater Treatment Plant (IWTP), located at 2995 Clearwater Way, San Diego, CA 92154 on Tuesday, August 1, 2017 at 9:30 AM PDT.

(b) Names of individuals who plan to attend shall be furnished before 10:00 AM MDT on Monday, July 31, 2017. by email submission to Philip.Johnson@ibwc.gov. (c) Due to time, distance, and cost associated with the Pre-Proposal Conference, the USIBWC will only be hosting a

Pre-Proposal Conference/Site-Visit on the aforementioned date. Offerors are highly encouraged to attend since no other date will be provided.

(d) The purpose of the conference is to provide prospective Offerors, subcontractors and suppliers, an opportunity to observe and evaluate project conditions. To present questions in writing, in advance by email only, see Section G.2, referencing the solicitation number RFP IBM17R0007.

Answers to written questions will be prepared and discussed during a questions and answer period at the conference. Questions shall be submitted to arrive at the aforementioned address no later than 10:00 AM MDT on Monday, July 31, 2017.

(e) While every effort will be made to provide meaningful responses or clarifications to all inquiries, no answer shall be binding by the Government unless submitted in writing and subsequently answered by means of a formal amendment to this solicitation. After the Pre-Proposal

Conference, written questions may be submitted to the aforementioned email until 3:00 PM MDT on Friday, August 4, 2017 at 9:30 AM PDT.

Questions received after the cut-off deadline will NOT be responded to, unless deemed significant by the Contracting Officer or the question conveys a material mistake and/or error in the Request for Proposal.

Questions and Answers

Questions received from prospective offerors are clarified/answered as follows:

1. Question: Due to about 12 weeks procurement time for precast concrete trench system and 10 weeks for the Glass lined Ductile Iron

Pipes, can notice-to-proceed be issued in two (2) stages?

Stage one: up to 45 calendar days for submittal and approval, excluding Government’s review time; stage two: 150 calendar days for procurement and field installation.

Specification allows for a total 120 calendar days. It is too short to accommodate the submittal review times and material procurement lead time.

The constriction time is only about 45 calendar days.

Response: All work included under these Contract Documents shall be completed by the contractor, and fully operational within 150 calendar days after the Notice to Proceed.

2. Question: Scope of Work, page 3, number 6: “…Provide and install all required conduits, fittings and wires and connect the flow meters to SCADA system and update SCADA screen to reflect new flow meters.” In the job walk of June 29, 2017, the plant representative asked the contractor to submit RFI to the Government for further details. Please provide details where and what SCADA system is referring to.

Response: The flow meters shall be installed at the SBIWTP Headworks Building. The contractor is required to provide conduit, meter power, and control wiring between each meter’s location and the Programable Logic Controller (PLC) located at Headworks Local Control Center (HW-LCC). Contractor shall be required to terminate meters power and control wiring as directed by the COR. The programming to SCADA system shall be performed by the Government.

3. Question: In the job walk of June 29, 2017, the plant representative told contractor to submit RFI because the following works are not applicable. Please clarify.

Specification, pages 33 through 35:

• paragraph 3.6 “STEWARTS DRAIN GRIT BOX AND SUMP PUMP”.

• paragraph 3.7 ELECTRICAL AND INSTRUMENTATION REMOVALS

• paragraph 3.9 DRAINAGE CHANNEL REMOVAL

Response: SECTION 02050 DEMOLITION is revised to delete paragraphs 3.6, 3.7 and 3.9.

4. Question: Specification, page 41, paragraph 1.4 JOB CONDITIONS, “ … The boring logs from these reports are included at the end of this Section …” However, there are no boring logs attached. Please clarify.

Response: Geotechnical Investigation Report may be reviewed at the USIBWC Field Office located at 2995 Clear Water Way, San Diego, California 92154.

5. Question: Specification, page 42, paragraph 2.1 SOIL MATERIALS, A.2 - “… Use granular material free from organic matter that has a UBC expansion index of 30 or less …”. Please provide the soil report so that contractor can determine if the onsite excavated soils are suitable to be used as Select Fill.

Response: Geotechnical Investigation Report may be reviewed at the USIBWC Field Office located at 2995 Clear Water Way, San Diego, California 92154.

6. Question: Specification, page 43, paragraph E.4 “… HDPE liner materials shall be …”. Please clarify where will the HDPE liner be required.

Response: SECTION 02220 EXCAVATION AND BACKFILL is revised to delete paragraph 2.1.E Geomembrane

7. Question: Specification, page 46, paragraph B.3 “ … In the below grade facilities, overcut by two feet and clean the subgrade of all loose or disturbed soils, moisten or allow to dry as necessary, and compact the exposed subgrade. Entire base slab shall be supported by a minimum 12 inches of 3/4-inch open graded gravel encapsulated in filter fabric (proof-rolled with a vibrating roller) or Class 2 permeable material (Caltrans Standard Specifications Section 68-1.025) compacted to 95 percent relative compaction (ASTM D1557) over dense compacted select fill. The uppermost 12 inches of the select fill shall be compacted to at least 95 percent relative compaction. Extend subgrade minimum of 2'-0" beyond edge of the base slab ...” Paragraph B.8 “… Excavation shall be extended a minimum of two feet on each side of structures, footing, etc. unless otherwise shown or specified ...” These two paragraphs of requirements contradict to the SCOPE OF WORK, page 2 “… The trench width and depth shall be minimized to greatest extent practical but shall conform to the manufacturer installation specifications and recommendations …” , “ … The trench will be approximately (53-1/2") wide x (26-1/2") deep overall including cover …”

Please clarify if the following work are required?

• the minimum 12 inches of 3/4-inch open graded gravel encapsulated in filter fabric required below the precast concrete trench system.

Response: No.

• overcut by two feet below bottom of precast concrete trench system and then recompact for subgrade preparation.

Response: The trench width and depth shall be minimized to greatest extent practical but shall conform to the manufacturer installation specifications requirements and recommendations and as approved by the COR.

• excavation and subgrade preparation shall be extended a minimum of two feet on each side of the precast concrete trench system.

Response: The trench width and depth shall be minimized to greatest extent practical but shall conform to the manufacturer installation specifications requirements and recommendations and as approved by the COR.

8. Question: Could you be so kind as to forward the site visit attendees list?

Response: There was one contractor on the job walk - C. W Crosser construction Inc. PO Box 607, Yorba Linda, CA 92885 Attendee's name was

Yu-Tien Chao.