W912ES23Q0099U00002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

To update the NAICS code, change the scope of w ork, add pictures of each location's controller and extend the solication date.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 6

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

16C. DATE SIGNED

BY 20-Nov-2023

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912ES23Q0099

X 9B. DATED (SEE ITEM 11)

25-Sep-2023

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer 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 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 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 APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

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

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.

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

21-Nov-2023

CODE

CONTRACTING DIVISION

USACE, ST PAUL

332 MINNESOTA STREET

SUITE E1500

ST PAUL MN 55101-1323

W912ES 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912ES23Q0099

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been modified:

QUESTIONS

Questions from Vendors:

Are all of the valves Aquamatic Valves?

Yes. Aquamatic 425 valves What specific valves are open and what specific valves are closed?

Valves 1,2,3 & 4 and normally open.

Valves 1A, 2A, 3A, and 4A are normally closed.

See .pdf found in SAM for the manual that was provided to USACE with the system.

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The standard size code has changed from $45,000,000 to $19,000,000.

The required response date/time has changed from 13-Oct-2023 03:00 PM to 15-Dec-2023 01:00 PM.

SUPPLIES OR SERVICES AND PRICES

Global Changes

CLIN 0001 -- CLIN 0005

The NAICS code has changed from 237110 to 238220.

The following have been modified:

SCOPE OF WORK

SCOPE OF WORK

Stager Controllers

For Water Filtration Systems

U.S. Army Corps of Engineers, St. Paul District

1. General Description.

The Contractor shall provide five (5) custom programed Stager Controllers for the well-water filtration systems that are installed at the following Locks and Dams: LD2 (Hastings, MN), LD5 (Minnesota City, MN), LD5A (Fountain City, WI), LD7 (La Crescent, MN), LD9 (Eastman, WI). These systems were originally designed, built and installed by Robert Hill Company in St Louis Park, MN.

The resulting contract is for the replacement of the controller units only. The U.S. Army Corps of Engineers (USACE) has no preference for brand, make, or model of the controllers provided they comply with the performance requirements listed below and intregrate into the currently working system. Additional parts may be required to insure the system and new components are compatiable. No adjustment in contract price will be made for failure to ensure component compatibility.

The systems at all five sites incorporate four tanks on a balanced manifold. Iron in the water is oxidized then filtered through backwashing filters. Oxidation is accomplished with dissolved potassium permanganate injected into the water stream via a chemical feed pump. The chemical feed pump is wired to operate with the well pump.

The filters are four 30” diameter steel tanks. The filter beds are composed of manganese greensand, a manganese coated glauconite capped with anthracite filter coal. The four in-line tanks filter, until a set volume is treated, or a set period of time has passed. The filters are then taken off-line and back-washed individually. Following backwash, the filters are then returned to service. Backwash is provided by the remaining tanks on-line, so there is no contamination in the lower distributor or lower layers of the filter bed.

Photos/Specifications and Quantities are as follows:

Figure 1: Current controller at Lock and Dam 5A from Robert Hill Company

Figure 2: Well pump

Figure 3: Controller and Potassium Permanganate tank.

Water coming in from the well pump is plumbed to the filtration tanks. Potassium Permanganate is added when the well pump cycles.

Figure 4: Green sand filtration tanks. Water is filtered through these tanks. Back flush is regulated by the

Controller.

Stager Controller

Complete Stager Module UL (or nationally accredited test lab) listed components.

12-month parts and labor warranty.

Components and spare parts must be available within 10 days.

Electronic copies of schematics, program data and ladder diagrams must be provided prior to award for evaulation.

Programs start, stop and cycle time of back flush cycle for well water filtration system.

Capable of controlling pump and up to four greensand tanks.

Measures and displays flow which can be used to determine that system is working effectively.

Water flow ranges between 0-100 GPM (gallons per minute). Typical service flow rate is 75 GPM

(@ 3.5 fps).

Backwash Cycle:

o First Stage: 8 GPM/Sq Ft o Main Wash: 15 GPM/Sq. Ft o Maximum Backwash Rate: 18 GPM/Sq. Ft o Backwash Flow Rate: 75 GPM o First Stage Flow Rate: 40 GPM o First Stage Duration: 2 minutes o Total Backwash Duration: 10 minutes

Quantity of Five (5) units at locations listed.

Contractor Requirements

Must have minimum of five years documented experience in well water filtration systems and satisfactory performance ratings in Federal rating systems.

Installation and Training

Includes turnkey installation, integration, programming and training Includes Operator and Maintenance (O&M) Manual complete with schematics, recommended spare parts, and part numbers.

Electronic copies of schematics, program data and ladder diagrams must be provided.

Contractor Site Visits

Interested contractors are encouraged to see the application prior to bidding on these controllers.

Minimum 48 hours’ notice is required and is limited to maximum of two hours per site.

Availability for site visits is during work hours of Monday through Friday 08:00 – 15:00.

(End of Summary of Changes)