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 or (c) By separate letter or electronic communication 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 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.

E. IMPORTANT: is not is required copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7.ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

IT MODIFIES THE CONTRACT/ORDER NUMBER 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

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

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.

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

PAGESOF

Contractor

The hour and date specified for receipt of Offers to sign this document and return

Caroline Bachelier

See continuation page

NPS, PWR - LAKE MABO

601 Nevada Way Boulder City NV 89005-2426

PPL

140P8126B0008

08/17/2026

07/13/2026

1 7

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGES

NAME OF OFFEROR OR CONTRACTOR

SUPPLIES/SERVICES

(B)

UNIT

(D)

UNIT PRICE

(E)

AMOUNT

(F)

OPTIONAL FORM 336 (4-86)

Sponsored by GSA FAR (48 CFR) 53.110

ITEM NO.

(A)

QUANTITY

(C)

NSN 7540-01-152-8067

140P8126B0008/0001

See Continuation Page

Amendment 0001

The purpose of this amendment is to answer contractor questions, update wage determination, publish site visit attendance and post the bid opening meeting information:

1. Answer Contractor Question:

Q1: Does this project include any work at Boulder Beach, or only Horsepower Cove?

A1: Work shall only be performed on the Horsepower Cove Lift station only. Any reference to Boulder Beach Picnic Area Lift Station shall be ignored. Both lift stations were designed at the same time. References to the Boulder Beach Station should have been removed.

Q2: Where should the meter vault and flow meter be located?

A2: The flow meter and meter vault has been removed from the plans. Any reference to it in the specs were left over from final edits. None are shown on the plan sheets.

Q3: Can you issue the revised fence, gate, and bollard layout? Do the storage containers need to be moved?

A3: The current fence and gates were added after the design plans were completed. The fence was added to meet Nevada safety and security upgrades to the site. Contractor shall submit a design or location of proposed fence. The bollards were proposed to protect the underground equipment because it is not designed as traffic rated. Proposed fence to be provided shall surround the newly installed lift station and equipment. Bollards are not needed when the fence is installed. Storage containers should not need to be moved. If contractor needs them relocated, design and installation of the equipment shall be discussed with the COR.

Q4: Can you provide the system curve, average and peak inflow, and maximum shutdown time?

A4: The contractor and their equipment designers shall provide the proper equipment needed to properly operate the proposed pumps to be installed. The inflow for this lift station comes from the Marinas and is not consistent. The below shown pump was the standard used for design purposes. Contractor shall determine that their provided equipment meets the design standards.

Q5: Which pipe applies to the 6-inch gravity sewer: C900, SDR 26, or SDR 35?

A5: SDR 35 can be used for the gravity sewer lines. The SDR 26 callout on C9 should be the vertical down pipe inside of the wet well. It is exposed and would be more resistant to being hit or damaged from the pumps or workers inside the wet well. C900 should be used for the force main pressure pipes.

Q6: Which pump starters are required: soft starters or full-voltage DOL NEMA starters?

A6: Soft starters have been the standard installed equipment in our lift stations. The contractor and their equipment designers shall provide the proper equipment needed to properly operate the proposed pumps to be installed.

Q7: Can you confirm that there is only one Lift station being replaced. The specs list Boulder Beach lift station also, but the plans are only for Horseshoe.

A7: Yes. 1 single lift station will be replaced. Horsepower Cove only.

Q8: Can the Superintendent, QC Supervisor, Site Safety Supervisor and Environmental Manager be the same person?

A8: Yes.

Q9: Could you please provide the approximate location for the temporary site enclosure fence?

A9: There is no exact location. Temporary fencing is to protect contractor's equipment and site excavation. Per Note 8 on Sheet C7, Fencing may need to be revised or adjusted to fit proposed layout.

2. The wage determination has been updated to NV20260071 dated 07/30/2026.

3. Published site visit attendance.

4. The bid due date remains the same, Aug 24, 2026, at 2pm PDT.

5. The bid opening will be held on via Microsoft Teams on Aug 25, 2026, at 2pm Pacific Daylight

Time (PDT). Below is the hyperlink:

https://teams.microsoft.com/meet/243965583688894?p=td07RIdg5AF4Ghzj9d Meeting ID: 243 965 583 688 894 Passcode: kd2o4Z9q

By Phone: +1 202-640-1187 Phone Conference ID: 777 545 445# https://teams.microsoft.com/meet/243965583688894?p=td07RIdg5AF4Ghzj9d tel:+12026401187,,777545445

Sponsored by GSA FAR (48 CFR) 53.110