Sol_140P8125Q0017_Amd_0002.pdf

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Attached to
PARKWIDE VFD REPLACEMENT Federal contract opportunity
Solicitation number
140P8125Q0017
Issued by
Department of the Interior National Park Service Pacific West Region

About this file

This document is a federal contract solicitation amendment (Amendment 0002) for a Parkwide Variable Frequency Drive (VFD) Replacement project at Lake Mead National Recreation Area. The amendment extends the solicitation close date to 5/12/2025 by 2 PM PDT, with an estimated period of performance from 6/9/2025 through 12/8/2025, while maintaining a 180-day performance period from award. The specific scope involves replacing 16 VFDs at water treatment facilities across multiple locations including Katherine Landing, Callville Bay, Echo Bay, and Cottonwood Cove, with varying voltage requirements (240V and 480V, three-phase configurations).

The amendment includes a detailed question and answer section addressing technical specifications for the VFD replacements, covering communication requirements (4-20 communication ports for alarm communications), voltage specifics for each location, motor controller configurations, and installation details. Key technical clarifications include that the drives do not require input/output filtering, motors are not in a duplex arrangement, and all existing units will be upgraded from soft starts to VFDs to provide better protection against power inconsistencies. The barge and lift station units will be installed within existing cabinets, with no new enclosures needed.

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(x)

140P8125Q0017 x x

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.

x

PPL

Boulder City NV 89005-2426 601 Nevada Way

NPS, PWR - LAKE MABO

03/31/20250002

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

03/31/2025

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 this amendment is to provide a list of answers to questions regarding this solicitation, to extend the solicitation end date, and to update the estimated period of performance dates accordingly. See continuation page below for full details.

Period of Performance: 06/09/2025 to 12/08/2025

Change Item 00010 to read as follows(amount shown is the obligated amount):

00010 Replace 16 VFDs at Lake Mead NRA Water Treatment

Facilities and provide 16 spare VFDs.

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)

Caroline Bachelier

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 3

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

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

140P8125Q0017/0002

Work to be performed in accordance with

Attachment 1 - Statement of Work.

Product/Service Code: N059

Product/Service Description: INSTALLATION OF

EQUIPMENT- ELECTRICAL AND ELECTRONIC EQUIPMENT

COMPONENTS

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

Sponsored by GSA

FAR (48 CFR) 53.110

Continuation Page

Amendment 0002 The solicitation close date is hereby extended to 5/12/2025 by 2 PM PDT. The estimated period of performance dates have been updated to 6/9/2025 through 12/8/2025; however, in accordance with the statement of work, the period of performance remains 180 days from award. Any additional questions are due to the contract specialist, Caleb Overbaugh (caleb_overbaugh@nps.gov), on 04/28/2025 by 9 AM PDT. Please note that the Government intends to incorporate the Q&As from each amendment into the final contract as an addendum to the SOW.

Amd 0002 Q&A:

Q1: What type of communications do the drives need?

A1: The units must have 4-20 communication ports for alarm comms to the plc.

Q2: Do the drives need input our output filtering?

A2: No.

Q3: Please advise the voltages for each system for each drive A3: Voltages for the areas are:

- Katherine Landing: 480v, 3ph

- Callville Bay: 240v, 3ph with high (wild) leg

- Echo Bay: 480v, 3ph

- Cottonwood Cove: 480v, 3ph

Q4: Are motors a duplex arrangement?

A4: Motors are not duplex; each has its own motor controller. Nothing else to be replaced.

Q5: What inputs to the VFD exist besides the call for water? Pressure transducers, flow meters etc.

A5: They are controlled by SCADA or PLC and just receive a call to run signal when called to run.

Q6: Which specific motors need upgrades from mag starters to VFDs and which motors are already on a

VFD?

A6: All are being upgraded to VFDs in the place of soft starts, as VFDs offer better protection from the dirty power we experience.

Q7: Which motors will need a new enclosure for the VFD. Are they located outdoors, need special considerations for protection from the environment (the barge)?

A7: No new enclosures are needed. The barge units will be installed inside of the existing cabinet as well as the lift stations and WTP units. All enclosures have excess space to fit the new VFDs.

Q8: What are each motor's HP and voltage?

A8: This is detailed in the SOW.

mailto:caleb_overbaugh@nps.gov

File details come from the government source that posted it. Updated .