B09-140P2026B0003-Amd_6_0006.pdf

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

Vicki Freese-supler

See continuation page

NPS, DSC Contracting Services Div 1 Denver Federal Center, Building 50 P.O. Box 25287 Denver CO 80225-0287

DOI, NPS, DSC Contracting Services 1 Denver Federal Center, Building 50 P.O. Box 25287 Denver CO 80225-0287

PDS

PDS

140P2026B0003

10/07/2026

08/26/2026

1 2

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

140P2026B0003/0006

CURE 318472 - Rehabilitation of Water &

Wastewater System - Curecanti National

Recreation Area

The purpose of this amendment is to for the Bid

Abstract as a result of the sealed bid opening conducted on October 7, 2026.

All other terms and conditions of the solicitation remain unchanged and in full force and effect.

UNIT PRICE TOTAL LINE

PRICE UNIT PRICE TOTAL LINE

PRICE

OFFER / IGE $

DIFFERENCE UNIT PRICE TOTAL LINE

PRICE

OFFER / IGE $

DIFFERENCE UNIT PRICE TOTAL LINE

PRICE

OFFER / IGE $

DIFFERENCE

1 Elk Creek Sanitary System Repair 1 $2,775,286.00 $2,775,286.00 $3,710,552.00 $3,710,552.00 $935,266.00 $5,368,068.00 $5,368,068.00 $2,592,782.00 $1,730,459.00 $1,730,459.00 ($1,044,827.00)

2 Elk Creek water Supply Repair 1 $2,872,975.00 $2,872,975.00 $6,365,359.00 $6,365,359.00 $3,492,384.00 $6,823,440.00 $6,823,440.00 $3,950,465.00 $1,911,533.00 $1,911,533.00 ($961,442.00) 3 Complete SCADA System Replacement 1 $1,623,748.00 $1,623,748.00 $1,480,027.00 $1,480,027.00 ($143,721.00) $2,078,532.00 $2,078,532.00 $454,784.00 $1,561,124.00 $1,561,124.00 ($62,624.00) 4 Replace Elk Creek Marina Lift Station in Kind 1 $263,832.00 $263,832.00 $304,713.00 $304,713.00 $40,881.00 $622,550.00 $622,550.00 $358,718.00 $1,163,495.00 $1,163,495.00 $899,663.00 5 Archeological Monitoring 1 $368,702.00 $368,702.00 $279,532.00 $279,532.00 ($89,170.00) $435,978.00 $435,678.00 $66,976.00 $268,898.00 $268,898.00 ($99,804.00)

$7,904,543.00 $12,140,183.00 $4,235,640.00 $15,328,268.00 $7,423,725.00 $6,635,509.00 -$1,269,034.00

6 Elk Creek Gravity Sewer 1 $2,305,449.00 $2,305,449.00 $2,303,443.00 $2,303,443.00 ($2,006.00) $1,543,543.00 $1,543,543.00 ($761,906.00) $1,516,259.00 $1,516,259.00 ($789,190.00) 7 Elk Creek Lagoon Work 1 $1,882,965.00 $1,882,965.00 $562,648.00 $562,648.00 ($1,320,317.00) $974,405.00 $974,405.00 ($908,560.00) $825,050.00 $825,050.00 ($1,057,915.00) 8 Elk Creek Lift Station Replacement 1 $265,363.00 $265,363.00 $318,363.00 $318,363.00 $53,000.00 $398,156.00 $398,156.00 $132,793.00 $919,827.00 $919,827.00 $654,464.00 9 Lake Fork Complete Scope 1 $434,019.00 $434,019.00 $673,240.00 $673,240.00 $239,221.00 $751,521.00 $751,521.00 $317,502.00 $751,151.00 $751,151.00 $317,132.00 10 1 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 11 1 12 1 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

$4,887,796.00 $3,857,694.00 $3,667,625.00 -$1,220,171.00 $4,012,287.00 -$875,509.00 $12,792,339.00 $15,997,877.00 $18,995,893.00 $6,203,554.00 $10,647,796.00 -$2,144,543.00

TOTAL OPTION PRICE

TOTAL PRICE

ITEM No. DESCRIPTION QUANTITY

GOVERNMENT ESTIMATE

OPTIONS

BASE

TOTAL BASE PRICE

BAIRCO Komada Ridgeway Valley

C01 PROPOSAL ABSTRACT

Due Date / Time: 10/07/2026; 2:00 PM Mountain Time Solicitation Method and No.: Sealed Bidding - 140P2026B0003

Date: 10/07/2026 Issuing Office: National Park Service - Denver Service Center Park / PMIS: CURE 318472 Project Title: Replace Water and Wastewater Systems at Elk Creek and Lake Fork

Amendments: 00005

C01 Proposal Abstract 1 of 1 v1 Apr2025

UNIT PRICE TOTAL LINE PRICE UNIT PRICE TOTAL LINE PRICE OFFER / IGE $

DIFFERENCE UNIT PRICE TOTAL LINE

PRICE

OFFER / IGE $

DIFFERENCE UNIT PRICE TOTAL LINE PRICE OFFER / IGE $

DIFFERENCE

1 Elk Creek Sanitary System Repair 1 $2,775,286.00 $2,775,286.00 $2,434,659.00 $2,434,659.00 ($340,627.00) $4,250,000.00 $4,250,000.00 $1,474,714.00 $3,524,706.00 $3,524,706.00 $749,420.00 2 Elk Creek Water Supply Repair 1 $2,872,975.00 $2,872,975.00 $3,943,481.00 $3,943,481.00 $1,070,506.00 $6,240,000.00 $6,240,000.00 $3,367,025.00 $2,910,778.00 $2,910,778.00 $37,803.00 3 Complete SCADA System Replacement 1 $1,623,748.00 $1,623,748.00 $3,025,952.00 $3,025,952.00 $1,402,204.00 $5,500,000.00 $5,500,000.00 $3,876,252.00 $1,111,326.00 $1,111,326.00 ($512,422.00) 4 Replace Elk Creek Marina Lift Station in Kind 1 $263,832.00 $263,832.00 $1,203,654.00 $1,203,654.00 $939,822.00 $1,600,000.00 $1,600,000.00 $1,336,168.00 $498,424.00 $498,424.00 $234,592.00 5 Archeological Monitoring 1 $368,702.00 $368,702.00 $393,957.00 $393,957.00 $25,255.00 $800,000.00 $800,000.00 $431,298.00 $279,988.00 $279,988.00 ($88,714.00)

$7,904,543.00 $11,001,703.00 $3,097,160.00 $18,390,000.00 $10,485,457.00 $8,325,222.00 $8,325,222.00 $420,679.00

5 Elk Creek Gravity Sewer 1 $2,305,449.00 $2,305,449.00 $4,114,135.00 $4,114,135.00 $1,808,686.00 $825,000.00 $825,000.00 ($1,480,449.00) $698,532.00 $698,532.00 ($1,606,917.00) 6 Elk Creek Lagoon Work 1 $1,882,965.00 $1,882,965.00 $3,168,501.00 $3,168,501.00 $1,285,536.00 $500,000.00 $500,000.00 ($1,382,965.00) $1,241,555.00 $1,241,555.00 ($641,410.00) 7 Elk Creek Lift Station 1 $265,363.00 $265,363.00 $984,893.00 $984,893.00 $719,530.00 $300,000.00 $300,000.00 $34,637.00 $776,884.00 $776,884.00 $511,521.00 8 Lake Fork Complete Scope 1 $434,019.00 $434,019.00 $1,708,507.00 $1,708,507.00 $1,274,488.00 $250,000.00 $250,000.00 ($184,019.00) $943,836.00 $943,836.00 $509,817.00

$4,887,796.00 $9,976,036.00 $1,875,000.00 -$3,012,796.00 $3,660,807.00 $3,660,807.00 -$1,226,989.00 $12,792,339.00 $20,977,739.00 $20,265,000.00 $7,472,661.00 $11,986,029.00 $11,986,029.00 -$806,310.00

C01 PROPOSAL ABSTRACT

Due Date / Time: 10/07/2026, 2:00 p.m.

Solicitation Method and No.: DBB - 140P2026B0003

Date: 10/07/2026 Issuing Office: National Park Service - Denver Service Center Park / PMIS: CURE 318472 Project Title: Replace Water and Wastewater Systems at Elk Creek and Lake Fork

Amendments: 0005

ITEM No. DESCRIPTION QUANTITY

GOVERNMENT ESTIMATE

OPTIONS

BASE

TOTAL BASE PRICE

Central Southern Construction Colorado Civil Infrastructure Gideon Contracting

TOTAL OPTION PRICE

TOTAL PRICE

UNIT PRICE TOTAL LINE PRICE UNIT PRICE TOTAL LINE PRICE OFFER / IGE $

DIFFERENCE UNIT PRICE TOTAL LINE PRICE OFFER / IGE $

DIFFERENCE

1 Elk Creek Sanitary System Repair 1 $2,775,285.00 $2,775,285.00 $5,193,880.38 $5,193,880.38 $2,418,595.38 $3,207,944.00 $3,207,944.00 $432,659.00 2 Elk Creek Water Supply Repair 1 $2,872,975.00 $2,872,975.00 $5,286,579.73 $5,286,579.73 $2,413,604.73 $3,667,918.00 $3,667,918.00 $794,943.00 3 Complete SCADA System Replacement 1 $1,623,748.00 $1,623,748.00 $1,376,148.16 $1,376,148.16 ($247,599.84) $1,007,625.00 $1,007,625.00 ($616,123.00) 4 Replace Elk Creek Marina Lift Station In Kind 1 $263,832.00 $263,832.00 $1,890,085.05 $1,890,085.05 $1,626,253.05 $460,378.00 $460,378.00 $196,546.00 5 Archeological Monitoring 1 $368,702.00 $368,702.00 $483,237.21 $483,237.21 $114,535.21 $269,100.00 $269,100.00 ($99,602.00)

$7,904,542.00 $14,229,930.53 $6,325,388.53 $8,612,965.00 $708,423.00

5 Elk Creek Gravity Sewer 1 $2,305,449.00 $2,305,449.00 $1,550,231.35 $1,550,231.35 ($755,217.65) $2,078,000.00 $2,078,000.00 ($227,449.00) 6 Elk Creek Lagoon Work 1 $1,882,965.00 $1,882,965.00 $241,775.86 $241,775.86 ($1,641,189.14) $1,038,000.00 $1,038,000.00 ($844,965.00) 7 Elk Creek Lift Station Replacement 1 $265,363.00 $265,363.00 $466,715.52 $466,715.52 $201,352.52 $450,000.00 $450,000.00 $184,637.00 8 Lake Fork Complete Scope 1 $434,019.00 $434,019.00 $1,174,467.25 $1,174,467.25 $740,448.25 $732,000.00 $732,000.00 $297,981.00

$4,887,796.00 $3,433,189.98 $4,298,000.00 -$589,796.00 $12,792,338.00 $17,663,120.51 $12,910,965.00 $118,627.00

C01 PROPOSAL ABSTRACT

Due Date / Time: October 7, 2026, 2:00 p.m. Mountain Time Solicitation Method and No: DBB - 140P2026B0003

Date: 10/07/2026 Issuing Office: National Park Service - Denver Service Center Park / PMIS:CURE 318472 Project Title: Replace Water and Wastewater Systems at Elk Creek and Lake Fork

Amendments: 0005

ITEM No. DESCRIPTION QUANTITY

GOVERNMENT ESTIMATE

OPTIONS

BASE

TOTAL BASE PRICE

McKenzie Construction & Site Development Y&K Construction, Inc.

TOTAL OPTION PRICE

TOTAL PRICE

Sponsored by GSA FAR (48 CFR) 53.110