Sol_140R1021B0008_Amd_0006.pdf

(x)

140R1021B0008 x x 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.

x

Boise ID 83706-1234 1150 N. Curtis Road, Ste. 100

R10

Acquisition Management Division Regional Office Pacific Northwest Region Bureau of Reclamation

12/30/20200006

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

12/30/2020

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.)

The purpose of amendment 0006 is to post the answers to questions from contractors.

For bidders who wish to participate in the bid opening via teleconference, the call in number is: 877-953-5583 Passcode: 9362264

Questions and Answers:

1. Regarding temporary utilities, I do not see how the existing pumps can be removed without some temporary pumping capacity to handle the continuous influx of water into the basin.

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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)

Colby Clifford

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

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140R1021B0008/0006

Answer: See section 22 14 30, 3.01.C.

The sump system existing or temporary shall remain operational during construction activities. Water flow into the dam drainage sump cannot be stopped as it is dam water seepage that is collected.

2. Can demo one to make room to work in there?

Answer: As long as the sump system remains operational per spec section 22 14 30, 3.01C the

Contractor may proceed with demo.

3. What is a typical pump-down interval?

Answer: A single pump can drain the volume of the sump in approximately 16.5 minutes. Inflow into the sump was estimated to be in a range of

5.5gal/min to 38.5gal/min based off of monthly water discharge values in 2019.

4. We need existing conduit sizes, pictures of the interiors of Panels, Routing or raceway distances.

Answer: A. Please see the reference drawings for the existing conduit sizes (447-D-997, 998, 1170, 1597, 1598, 1793, 1805, 1806 etc.)

B. Please see Photo of PGB, which is exemplary of both panels PGB and PEB.

C. Please see the attached conduit & cable schedule on this same sheet for the distance.

5. I would like to request pictures of the face of the switchgear showing DAS 3 & 18 at 3092'.

The other picture would be in the lower pump level 3055', looking up at the ceiling where our conduits have to come down from. Plans page 60170

A-A would be the reference page.

Answer: Please see the attached photos of DSA3 &

DSA18.

6. Can you please confirm the intake and discharge size of piping?

Answer: Reference drawing 447-D-1331 for existing pump configuration and drawing 447-100-60170 for new pump installations.

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Sponsored by GSA

FAR (48 CFR) 53.110

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7. Also is it anticipated that one pump will have to remain functional while the other is removed and replaced?

Answer: The sump system existing or temporary shall remain operational during construction activities. Water flow into the dam drainage sump cannot be stopped as it is dam water seepage that is collected.

8. Will a temporary pump controller have to be installed to facilitate removal of the old controllers?

Answer: The sump system existing or temporary shall remain operational during construction activities. Water flow into the dam drainage sump cannot be stopped as it is dam water seepage that is collected.

9. The specifications DIVISION 02 ¿ EXISTING

CONDITIONS SECTION 02 82 20 would lead the bidder to believe that Asbestos Abatement will be required, however this is not data regarding existing conditions or a scope for pre work sampling. a. Please provide the most recent asbestos survey or location, type and total pounds to be included for abatement.

b. If no direction is provided for survey or amount and type expected, please provide direction on expectations for site survey performed under this contract.

Answer: Reference Specification 02 82 20 Section

1.07A, Project Conditions.

10. The specifications DIVISION 02 ¿ EXISTING

CONDITIONS SECTION 02 83 33 would lead the bidder to believe that Lead Abatement will be required, however this is not data regarding existing conditions or a scope for pre work sampling. a.

Please provide the most recent paint containing metals survey or location, type and areas to be included for abatement.

b. If no direction is provided for survey or amount and type expected, please provide direction on expectations for site survey performed under this contract.

Answer: Reference Specification 09 91 10 Section

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1.06A, Project Conditions.

11. Since the area where the pump will be installed is underwater, is the government planning to stop water flow to allow the anchors to be installed?

Answer: The Government is unable to stop waterflow into the sump as water draining into the sump is water seepage through the dam.

12. Please provide the conduit schedule for lengths for replacing feeders.

Answer: See attached conduit and cable schedule.

13. Please provide the part and model numbers for the primary (DSA3) and emergency (DSA18) feeder disconnects and a picture of the front of each.

Answer: See the attached photos (Photo of DSA3 &

DSA18) on this same sheet for the part & model #.

14. Could we get DWG 447-D-1171?

Answer: See attached drawing 447-D-1171.

15. Can the existing pump lower the water below elevation 3047.00?

Answer: Reference Drawing 447-D-1072. The existing sump pump intakes per the drawing are below elevation 3047.00¿ in the sump sink.

16. Can you verify the existing conduit that feeds from DSA to Disconnect PGF is 3¿ conduit, look like 2¿ to me. Also, any chance you can get us lengths for the wires feeding this circuit.

Answer: They are believed to be 2¿, for the wire length, see the attached conduit and cable schedule.

17. Same scenario for PEL, please verify the conduit is 3¿ feeding back to DSA, again if you can provide please wire lengths.

Answer: They are believed to be 2¿, for the wire length, see the attached conduit and cable schedule.

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18. Request better photos of Existing disconnects

PEL and PGF, so the conduits feeding the top of the disconnect. Again, they look like 2¿.

Answer: See attached photographs.

19. Plan page 60171, Left picture lists a PGP.

What is it or is this a typo?

Answer: PGP is a 480VAC breaker for automatic greasing. Please see the spec 51 00 00-3-photo 4.

20. Do we have any explosion proof classified areas (26 05 33 8, part 3 Q) is it referring to some part of this job?

Answer: HHFO is not aware of any areas designated

Class 1 / Div. 1.

21. 60171, DSA 18 refers to a missing page

(447-D-0909) in the bid documents. Is it important?

Answer: The bid doc includes the 447-D-909

(Station service single line diagram). Page 381 of the solicitation.

22. Who pulls out the feeder wires DSA 3 & 18 that I hear have asbestos? Can we touch the wire and disconnect it?

Answer: The contractor will be responsible for removal of feeders and pulling new feeders. An outage will need to be coordinated as live work is not permitted. Asbestos abatement will be the responsibility of the contractor, as required.

23. How long can power be out for lighting panels effected with the power changes LGT, LGS, LGC, LGB, LGA, LEC, LEA, LEB?

Answer: Power can be out for the duration of replacement of Panelboard PEB and PGB.

Replacements will need to be conducted serially, not in parallel to minimize outage times of the various areas.

24. What is the length of DSA 3 & 18?

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Answer: Please see the attached conduit & cable schedule.

25. Provide the make and model of the existing pumps so we can determine the weight.

Answer: The following is listed on the plates on the motors:

US Motors

Type:90D

Frame:526-3

15-HP

Phase 3

26. What is the average water discharge per hour?

Answer: Week of January 20th, 2019 water discharge was 84,000 gallons and pump run time was 2.8 hours for the week. Week of July 2nd, 2019 water discharge was 222,000 gallons and pump run time was 7.4 hours. Based off these values the pump discharge from the sump pumps will be approximately 500-1321 gallons per hour.

Discharge may be more due to reservoir head or other unforeseen factors.

27. The specs call out for the piping to be ¿ASTM

A53, type E or S, carbon steel, schedule 80, galvanized¿, but the drawings say stainless steel. Could you confirm which is correct?

Answer: The pipe material is as listed in the spec, ASTM A53, type E or S, carbon steel, schedule 80, galvanized. See the attached amended drawings.

28. On the single line diagram (Drawing

447-D-1406) there are two switches shown ¿ ¿ATS¿ and ¿Automatic Transfer Switch PEAT¿. Are those the two switches that we are to quote? If so, at a minimum I need voltage, # of poles, amperage, and WCR for them.

Answer: The plan 60173 and 60174 indicates that the ATS PEM will need to be replaced not PEAT.

29. Contract Drawing 447-100-60170 Section B-B shows a ¿High Alarm pressure Switch¿ @ elevation

3055.00, however the specs do not provide detail

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140R1021B0008/0006 or an ¿or equal¿ to supply this switch. a. Please provide more details for the supply of this switch.

Answer: Reference Specification 22 14 30 Sump

Pumping Systems, Section 2.02A for requirements of High Level Alarms.

30. Contract Drawing 447-100-60170 Section B-B shows a ¿4-port float switch connection system¿ just above elevation 3055.00, however the specs do not provide detail or an ¿or equal¿ to supply this connection system.

a. It is industry standard that the pump suppliers provide the controls to include the floats along with wiring harness that terminates directly to the pump control box.

i. The pump suppliers do not have an off-shelf system as described on the plans.

ii. The pump suppliers do not recommend a connection for the floats to be made in that area due to possible failures.

iii. The specs provide no details for a custom switch, no ratings, type or an ¿or equal¿

b. Please provide a specification for the supply or allow for direct termination into the pump panel at elevation 3135.00.

Answer: The design intent of the ¿4-port float switch connection system¿ is to eliminate the need to replace full length float switch cables from elevation 3055.00¿ to the control box at elevation 3135.00¿. By having a float port or junction box at the 3055.00¿ elevation the float switches for each of the pumps can be tied in or spliced at this level. If a float switch should fail or be faulty at some point in the future, Hungry Horse personnel can easily replace the short float section of cable and float from the port at elevation 3055.00¿ to the float location in the sump. The specs do not have ¿or equal¿ in this instance to allow the contractor flexibility in choosing components to make the float system work. Please reference 22 14 30 Section 2.01 Sump

Pumping Units and also 22 00 00 Basic Mechanical

Requirements for requirements of Sump System

Design.

31. When we turn off DSA 3 or 18 feeders, it will

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140R1021B0008/0006 affect at least 3 other lighting panel boards.

How do they want us to address that, how long can they be down?

Answer: DSA 3 & DSA 18 will only be deenergized one at a time. People working in the dam will need to have portable/battery powered lighting.

The Lighting Panels can be deenergized for the duration of the PEB/PGB Panel replacements. The outages will need to be coordinated with

Operations.

32. Specs call out grounding bushings and conduit seals on each conduit end. Only one of them can occupy the end of the conduit. Which one?

Answer: Grounding bushings and conduit seals on each conduit is typical/common installation for the application and per industry standards.

33. Is there an asbestos study that includes the old feeder wires?

Answer: No.

34. "The scope calls out for the new pump feeders that leave the new panelboards PGB and PEB to be in a 2¿ conduit to the PEM. The plans show 1¿ conduits in the tunnel.

a. How long are those runs of 1¿ that have to be upsized to 2¿ for the new 3#1/0, #6 grd.

b. Can we have pictures of where those 1¿ conduits connect to PGB and PEP

c. Our notes show there are no 1¿ conduits coming into the PGB and PEB, where is the transition from pump chamber 1"" to 2"" in the panelboards"

Answer: Regarding the 1" conduit shown in drawing

447-D-1793, HHFO assume the run of the 1" conduit to be 150' for bidding purposes. Actual length to be field verified. The picture isn't available, it needs field verification.

35. Is there drawings illustrating the control wiring for the ATS, and makes it cycle?

Answer: The drawing isn't available. The new ATS will be designed per the drawings and specifications.

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36. We are having problems finding panelboard manufacturers that will make a panelboard (PGB, PEB) and a separate disconnect (PGF,PEL) to fit inside the concrete opening shown on 447-D-998, Detail F. Can we supply a main breaker for PGB and PEB instead?

Answer: The equipment choice was based on the operation/maintenance needs and arc flash study.

The disconnect switch's size has been updated to

225A from 400A.

Legacy Doc #: BOR

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