W912WJ18B0029_Amendment_0002.pdf

W912WJ18B0029

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

This amendment is issued to provide responses to Requests for Information (RFI) and to provide narrative changes to the specifications and the addition of a new section to the specifications. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 8

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

16C. DATE SIGNED

BY 08-Aug-2018

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 W912WJ18B0029

X 9B. DATED (SEE ITEM 11)

16-Jul-2018

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 is extended, X 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

08-Aug-2018

CODE

US ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA ROAD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

AMENDMENT 2

Requests for Information

Q: As per spec. section 01 11 00 page 7: While ETL 1110-2-584 appendix E is indicating that this appendix ix [sic] not developed for bonnet type gates. Please inform customer that this standard is not developed for designing this type of the gates. Please clarify it.

A: As stated in Appendix E, “For other types of gates, such as sluice gates, bonnet type gates, maintenance bulkheads, and slide gates, specific criteria have not been developed.” In lieu of specific USACE guidance, Appendix E is being used for design of the gate. Contractor shall adhere to design requirements listed there-in, as stated in the specifications.

Changes to Specifications

Narrative Changes to Specifications

1. Section 01 11 00 Part 1.3 Original Language: There is some leakage through the hydro-electric gate upstream of the lift gate. The Contractor shall be responsible for managing all water resulting from the hydro- electric gate leakage.

Revised Language: There is leakage through the hydro-electric gate upstream of the lift gate, the volume of which is dependent on pool level, with lower pool levels resulting in lower leakage volumes.

The picture attached to this specification shows leakage volumes at a pool level of approximately 65 feet. Except during flood events, pool level will be maintained at approximately 35 feet during construction. The Contractor shall be notified as soon as practicable when higher pool levels are anticipated. The Contractor shall be responsible for managing all water resulting from the hydro-electric gate leakage as well as any water entering the work area from the downstream direction due to releases from gates 2 and 3.

2. Section 35 20 16.53 Part 2.1.2.1

Original Language: New hydraulic fluid shall be selected to be a best match to the original fluid specification: MIL-L-15017, Military Symbol 2075-H. Fluid shall be rated for the following operating conditions:

Normal Working Pressure - 1000 psi Maximum Pressure - 1500 psi Normal Working Temperature - 50°F Nominal Flow Rate - 40 gpm

Revised Language: New hydraulic fluid shall be in accordance with section 35 05 40.14 10.1 3.

Section 35 20 16.53 Part 2.3.6

REMOVED

New Specifications Sections

1. Photo of Leakage (attached)

2. Section 35 05 40.14 10.1 (See below)

SECTION 35 05 40.14 10 Page 1

SECTION 35 05 40.14 10.1

HYDRAULIC FLUID REPLACEMENT

05/14

PART 1 GENERAL

1.1 SUMMARY

The work covered by this specification consists of detailed requirements for the testing, delivery, and installation of new hydraulic fluid and filters for operation of the sluice gates hydraulic power system at Ball Mountain Dam as specified.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D445 (2017a) Standard Test Method for Kinematic

Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)

ASTM D5185 (2018) Standard Test Method for

Multielement Determination of Used and Unused Lubricating Oils and Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

ASTM D664 (2017) Standard Test Method for Acid

Number of Petroleum Products by Potentiometric Titration

ASTM D6304 (2016; E 2016) Standard Test Method for

Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 16889 (2008) Hydraulic Fluid Power - Multi-Pass

Method for Evaluating Filtration Performance of a Filter Element

ISO 4021 (1992) Hydraulic Fluid Power - Particulate Contamination Analysis - Extraction of Fluid Samples from Lines of an Operating System

ISO 4406 (2017) Hydraulic Fluid Power - Fluids - Method for Coding the Level of Contamination by Solid Particles

SECTION 35 05 40.14 10 Page 2

ISO 4407 (2002) Hydraulic Fluid Power - Fluid Contamination - Determination of Particulate Contamination by the Counting Method Using an Optical Microscope

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data Standard Products; G Cleaning and Flushing Fluid Testing

1.4 DELIVERY, STORAGE, AND HANDLING

1.4.1 Shipping, Preservation, and Storage

Protect equipment delivered and placed in storage from the weather, humidity, temperature variation, dirt and dust, or other contaminants.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 Standard Products

Where items are referred to hereinafter as "similar and equal to" a particular manufacturer's product, such references have been made merely as a convenient method of indicating the type of material or equipment required, with no intention of asserting superiority thereof. The standard product of any reputable manufacturer regularly engaged in the commercial production for at least 2 years prior to this solicitation of the type and quality of material or equipment referred to will not be excluded on the basis of minor differences, provided essential requirements of the specifications relative to materials, capacity, and performance are met.

Furnish performance capacities and other pertinent information concerning the manufacturer's "equal to" standard products intended for incorporation in the work. "Equal to" standard products installed or used without such approval are at the risk of subsequent rejection.

2.1.2 Discharge Filter

Existing discharge filter on the 1.5-inch pressure line shall be replaced with a new filter assembly rated for a working pressure of 1500 psi.

Provide fittings and/or adapters as required to fit the new filter assembly to the existing piping, and provide additional wall-mount support brackets as required to support added weight of the new filter assembly. Final complete assembly shall be rated for use at the maximum working pressure and shall be leak free and shall be compatible with the hydraulic fluid.

Install filter assembly so that filter can be changed without removal of

SECTION 35 05 40.14 10 Page 3 hydraulic system components. New and existing components must be easily accessible. Discharge filter shall have a bypass with visual indication of operation that protects the filter against excessive pressures, and a cartridge replacement indicator. Discharge filter housing shall be ductile iron. Total filter assembly pressure drop with a clean filter shall not exceed 15 psi at a flow rate of 50 gpm when filtering the specified hydraulic fluid with a viscosity of 300 SSU at 100 degrees F. The filter cartridges must not remove additives from the hydraulic fluid. The filter element filtration efficiency shall be Beta sub twelve (12) = 1000 or better in accordance with ISO 16889.

2.1.3 Suction Strainers

Two existing suction strainers located on the inlet to each pump suction pipe shall be replaced. Field verify connection sizes and provide adapter fittings if required. Each strainer shall have a minimum capacity of 50 gpm at a pressure drop not exceeding 1 psi when filtering the specified hydraulic fluid at design conditions. Select units that provide minimal pressure drop among comparable models. Strainers shall be compatible with the hydraulic fluid and shall have stainless steel mesh screens and shall be cleanable and reusable.

2.1.4 Hydraulic Fluid (Petroleum Based)

The hydraulic fluid to be used to flush the system and to fill the complete hydraulic system shall be an all-weather type hydraulic oil which has a high viscosity index, low pour point, rust and oxidation inhibitors, and antifoam properties. The oil shall have a minimum viscosity index of 90 and shall have a viscosity of 300 SSU at 100 degrees F and a pour point of minus 10 deg F. Ensure new oil is compatible with the existing oil. For reference, the original fluid specification was Mil Spec MIL-L-15017 Military Symbol 2075-H, but exact initial specifications of the oil that is currently installed are not known. Filter fresh hydraulic fluid through a 10 micron filter before it is added to the system. It is estimated that the total volume of hydraulic fluid required to fill the system is 1474 gallons. Supply all oil to fill the system .

PART 3 EXECUTION

3.1 EXAMINATION

After visiting the site and becoming thoroughly familiar with all details of the work and working conditions, verify dimensions in the field, and then advise the Contracting Officer of any discrepancies prior to performing any work. The Contractor is specifically responsible for the coordination and proper relation of the contracted work to the structure and work of all trades.

3.2 FLUID TESTING

New hydraulic fluid shall be sampled and tested to establish conformance with the specifications and to establish a baseline for the new oil properties. Samples must accurately represent the oil that will be in service. Submit fluid testing reports to verify that the incoming fluid has been tested and meets the requirements for service. Minimum test

SECTION 35 05 40.14 10 Page 4 requirements shall include:

a. Spectrochemical by ICP in accordance with ASTM D5185

b. Water by Karl Fischer in accordance with ASTM D6304

c. Viscosity in accordance with ASTM D445

d. Total Acid Number in accordance with ASTM D664

e. Particle Count in accordance with ISO 4406

3.3 INSTALLATION

Install the equipment specified in accordance with the manufacturer's written instructions. Install complete units or assemblies without disassembly. Provide necessary supports for all equipment or components as required. During assembly, securely cover all openings to avoid the entrance of abrasives, dirt, metal chips, and other foreign materials into the hydraulic system through open ends of piping, tubing, and ports of the components.

3.4 CLEANING AND FLUSHING

Submit a detailed cleaning and flushing the system procedure not less than 14 days before start of cleaning operations. Use the same hydraulic fluid for flushing as approved for final filling. Include a detailed description of the equipment, materials, hydraulic fluid, temperatures, and duration of each phase of the flushing in the procedures. Clean the complete hydraulic power system including the piping, cylinders, reservoirs, valves, hoses, etc. of particles so that the contamination level is below 20/18/15 in accordance with ISO 4406. Take three 500 milliliter samples at approved locations according to ISO 4021. Perform particle counting on each sample in accordance with ISO 11500 or ISO 4407 by an approved independent test laboratory. Water content of each sample must be below 200 ppm. Reclean if any sample does not comply with the permissible contamination limits, and reinspect. When flushing is completed, drain the system and then fill with the specified hydraulic fluid.

3.5 FILLING AND BLEEDING THE SYSTEM

With all hydraulic equipment installed and all cleaning and flushing complete filling of the system may begin. The cleanliness of the oil used to fill the system must conform to the requirements for system cleanliness. Open the by-pass valves at the cylinders. Fill each hydraulic power unit and pump oil into the system through a 10 micron filter and keep adding oil as long as the level continues to drop. Cease pumping when the oil level no longer drops. Install by-pass piping if required and repeat the procedure to fill the drain/siphon line. Take care to expel as much air as possible from the piping and cylinders during the initial filling. Utilize piping vents and drains as much as possible to expel air from the system. Each power circuit pipe for the gates must have this procedure performed to fill the respective piping. Actuate cylinders by shifting spool on the four-way valve back and forth and bleeding air from ports provided on cylinders. Continue procedure for all hydraulic power units until all cylinders have been bled. Valves in tank lines may be closed during bleeding to prevent introduction of air into tank lines.

After all the cylinders for the machinery have been filled and bled of air, fill the hydraulic power unit tanks with oil. The oil level with all the gates closed must be above the "low level" shut-off. Ensure that the oil level is above the minimum level, but allows adequate volume for introduction of fluid displaced by the opening of all three gates without exceeding the maximum allowable height in the tank. It is estimated that approximately 39 gallons of fluid is displaced when all three gates cylinders are fully raised. The system, once filled, must be bled of air, operated, and periodically bled during the first week of operation to remove any air entrained in the system.

3.6 FIELD TESTS AND INSPECTIONS

3.6.1 Final Acceptance Tests

In preparation for the final acceptance tests, and after completion of the installation and proof tests, operate the hydraulic power system to prove acceptability. Conduct preliminary tests at minimum pressures and velocities until initial adjustments have been proven safe for normal operation. Details of all operations must be constantly monitored for signs of impending trouble and corrections must be made as necessary to prevent damage to the equipment.

At such time as the Contracting Officer may direct, conduct complete acceptance tests on the hydraulic power system for approval. Any deficiency or maladjustment disclosed by the tests must be corrected immediately and the test repeated until satisfactory results are obtained.

No subsequent tests will be permitted until all preceding tests have been completed satisfactorily. Upon completion of the final acceptance tests, furnish a written statement that the hydraulic power system has been field tested and meets all operational requirements.

3.7 CLEAN-UP

Existing hydraulic fluid shall become the property of the Contractor.

Contractor shall remove all existing hydraulic fluid from the project site and shall properly dispose of it offsite in accordance with all applicable laws and regulations.

Keep the work areas clean during execution of the work. Upon completion,, remove debris and surplus materials resulting from the work.

-- End of Section --

(End of Summary of Changes)