10 - Amendment 0001 to 47PK1523Q0001 2023 7 7 Signed.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: Contractor is not is required to sign this document and return 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. The hour and date specified for receipt of Offers 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 OF PAGES

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

9PQAF

David White, Contracting Officer

The purpose of this amendment to the solicitation 47PK1523Q0001 is to incorporate a revised Scope of Work dated 7/6/2023, answers to questions received about the solicitation, and exhibits 5 to 13 which include hose bib location information, Indiana Limestone Institute information, and a data sheet for the product used to seal the test section of limestone that was displayed in the original solicitation and shown on the site visit. No other changes are made by this amendment and the due date...

[See Description of Modification Continuation Page]

GSA, AMD, SAT, San Francisco Support Section 50 United Nations Plaza San Francisco, CA 94102 USA

EQ9PFN-23-0037

47PK1523Q0001

1 3

7/7/2023

6/15/2023

DocuSign Envelope ID: FB5D9CD1-10B0-4BC9-9048-EC3B27E6F53F

7/7/2023

INSTRUCTIONS (Back Page):

Instructions for items other than those that are self-explanatory, are as follows:

Item 1 (Contract ID Code). Insert the contract type identification code that appears in the title block of the contract being modified.

Item 3 (Effective date).

(1)

(2)

(3)

(4)

(5)

For a solicitation amendment, change order, or administrative change, the effective date shall be the issue date of the amendment, change order, or administrative change.

For a supplemental agreement, the effective date shall be the date agreed to by the contracting parties.

For a modification issued as an initial or confirming notice of termination for the convenience of the Government, the effective date and the modification number of the confirming notice shall be the same as the effective date and modification number of the initial notice.

For a modification converting a termination for default to a termination for the convenience of the Government, the effective date shall be the same as the effective date of the termination for default.

For a modification confirming the contracting officer's determination of the amount due in settlement of a contract termination, the effective date shall be the same as the effective date of the initial decision.

(a)

(b)

(c)

(d)

(e)

(f)

Item 6 (Issued By). Insert the name and address of the issuing office. If applicable, insert the appropriate issuing office code in the code block.

Item 8 (Name and Address of Contractor). For modifications to a contract or order, enter the contractor's name, address, and code as shown in the original contract or order, unless changed by this or a previous modification.

Items 9, (Amendment of Solicitation Number - Dated), and 10, (Modification of Contract/Order Number - Dated). Check the appropriate box and in the corresponding blanks insert the number and date of the original solicitation, contract, or order.

Item 12 (Accounting and Appropriation Data).

When appropriate, indicate the impact of the modification on each affected accounting classification by inserting one of the following entries:

(2) Accounting classification Net decrease $

Include subject matter or short title of solicitation/contract where feasible.

Item 16B. The contracting officer's signature is not required on solicitation amendments. The contracting officer's signature is normally affixed last on supplemental agreements.

(i)

NOTE: If there are changes to multiple accounting classifications that cannot be placed in block 12, insert an asterisk and the words "See continuation sheet".

Item 13. Check the appropriate box to indicate the type of modification. Insert in the corresponding blank the authority under which the modification is issued. Check whether or not contractor must sign this document. (See FAR 43.103.)

Item 14 (Description of Amendment/Modification).

Organize amendments or modifications under the appropriate Uniform Contract Format (UCF) section headings from the applicable solicitation or contract. The UCF table of contents, however, shall not be set forth in this document.

Indicate the impact of the modification on the overall total contract price by inserting one of the following entries:

(i) Total contract price increased by $

(ii) Total contract price decreased by $

(iii) Total contract price unchanged.

State reason for modification.

When removing, reinstating, or adding funds, identify the contract items and accounting classifications.

(g)

(h)

When the SF 30 is used to reflect a determination by the contracting officer of the amount due in settlement of a contract terminated for the convenience of the Government, the entry in Item 14 of the modification may be limited to --

(i) A reference to the letter determination; and

(ii) A statement of the net amount determined to be due in settlement of the contract.

(1)

(2)

(3)

(4)

(5)

(6)

STANDARD FORM 30 (REV. 11/2016) BACK

(1) Accounting classification Net increase $

Description of Modification Continuation Page

... for proposals remains unchanged at 4:00pm PDT on Monday, July 17th, 2023. Offerors are required to sign and submit a copy of this amendment with their proposal to acknowledge receipt.

47PK1523Q0001/0001

Sacramento Exterior Window Washing Solicitation Questions and Answers

Solicitation: 47PK1523Q0001

Job Walk: June 29th, 2023

Contracting Officer: David White

Project Manager: Rob Rudd

Q1: Robert T Matsui Federal Courthouse requires a sealer. Could you please be more specific on the type of sealer required? (ie: stucco, concrete, name brand)

A1: The GSA PBS P100 manual states that the Indiana Limestone Institute guidance will dictate the means and methods by which the limestone is treated. However, the Indiana Limestone Institute does not make recommendations on types or brands of sealant, so the contractor must propose the sealant they deem most appropriate for the application. Prosoco Limestone Restorer was used on the test section documented in the solicitation and shown on the site walk. Products must also comply with the Federal Acquisition Regulation clauses 52.223-1 – Biobased Product Certification and 52.223-2 - Affirmative Procurement of Biobased Products Under Service and Construction

Contractors that were included in the solicitation.

Q2: During the building pressure washing are there special coverings for the motors so they do not get wet which could cause damage?

A2: We have no coverings for the motors to be used during the washing session. If this is something you think should be covered during the operation then you must provide it.

Q3: Who is responsible for paying for the certification with Sky Rider Equipment Co.?

A3: The GSA will be responsible for procuring the 30 day use permit for the project. The contractor will be responsible for obtaining training certificates from Sky Rider for the use of the system at the

Robert T. Matsui Federal Courthouse located at 501 I St., Sacramento CA, 95814.

Q4: Can you confirm if the wage determination occupation code for limestone sealing would be the same as window cleaning?

A4: The current wage determination that was included with the solicitation, Service Contract Act WD

#2015-5631 dated 12/26/2022, contains many occupation codes. It is the contractor’s responsibility to ensure that they are adhering to the rates and benefits identified for the different occupations listed in the wage determination.

Q5: What is the current or previous contract amount?

A5: There is no current contract and it has been a number of years since there was a window cleaning contract in place, so we do not have information to provide on previous contracts.

Q6: Is the detailed price breakout to be included/added on the form SF1449 or will we be required to submit pricing separately from the SF1449 listing all items under Work Summary?

A6: The detailed price breakout can be included/added on the form SF1449 or provided separately. As long as it clearly demonstrates the costs associated with the work to be done.

Q7: Can you provide us with the product that was used to seal the building in the sample picture on exhibit 1?

A7: Prosoco Limestone Restorer.

Q8: Will there be an amendment reflecting the changes discussed during the site walk?

A8: Yes. The information provided here along with the revised Scope of Work dated 7/6/2023 and additional attachments are all part of the amendment to the solicitation 47PK1523Q0001.

Contractors are required to sign and return a copy of the SF30 amendment form with their proposal to acknowledge receipt of the additional information.

David White

Contracting Officer

61-23067 Exterior Window Washing – All Buildings RF 2/1/2023 Updated 7/6/2023

SCOPE OF WORK

For

Exterior Window Washing – All Buildings

501 I St., 801 I St., 650 Capitol Mall, & 2800 Cottage Way Sacramento, CA

Table of Contents

1.0 GENERAL

1.1 DESCRIPTION

1.2 POINTS OF CONTACT

1.3 USE OF SITE

1.4 QUALITY ASSURANCE

1.5 PROJECT COMPLETION PERIOD

2.0 PRODUCTS

2.1 SCHEDULE SUBMISSION

2.2 SECURITY CLEARANCE REQUIREMENTS AND INFORMATION

3.0 CODES AND STANDARDS

3.1 WORKING HOURS

3.2 CLEAN-UP OPERATIONS

4.0 GOVERNMENT OCCUPANCY

5.0 ROLES AND RESPONSIBILITIES

5.1 GOVERNMENT PARTICIPATION IN THE PROJECT PROCESS

6.0 SAFETY AND HEALTH

6.1 SERVICE PAYMENTS

7.0 WARRANTY

8.0 EXHIBITS

1.0 GENERAL

1.1 DESCRIPTION

The intent of this project is to wash the exterior windows at four (4) Federal buildings in Sacramento.

These buildings are located at 501 I St., 801 I St., 650 Capitol Mall, and 2800 Cottage way. 501 I St. is 350 feet tall with several unique features and a brand new building façade access system that was recently commissioned. 801 is four stories tall and has no façade access system. 650 Capitol Mall is 8 stories tall and has a rooftop mounted façade access system. And 2800 Cottage Way is two stories tall and has no façade access system.

501 I St. exterior has not been cleaned in years due to an inoperable façade access system. A new system was engineered and installed in early 2022. A large portion of this project is to address the exterior cleaning of this building and its surrounding features. This includes the building, walkways, loading dock, sally port, two out-buildings, and two garden areas.

The contractor shall furnish adequate supervision, labor, materials, supplies and equipment necessary to perform all the services required under this contract in an orderly, timely and efficient manner. The Federal Office Building is owned by the Federal Government and it is not subject to the requirements of the local Building Department. However, all local, state and federal codes need to be followed. The contractor shall be responsible for the provision of design documents and calculations as required to illustrate and explain the work to be completed.

Unless otherwise indicated, items of work are inclusive of, but not limited to, all labor, materials, equipment, traffic control, safety measures, replacement of disrupted improvements, coordination, preparation and accommodation of project constraints (whether specifically identified in these specifications or encountered during the contract) necessary to complete the item in conformance with all applicable governing agency regulations and specifications to the satisfaction of the Government and inspecting agency. Items of work that are necessary to complete the project in accordance with the plans and specifications if any, but that are not specifically called out in the Schedule of Unit Prices, are considered incidental to the project and are not subject to separate compensation.

The project requirements include all training, labor, and cleanup.

Proposal The contractor's proposal should include pricing for all items listed below as well as any item the contractor believes will be needed to complete this project. The proposal will need to include detailed pricing for each item listed below and the labor rate, time required, and materials needed to complete the project.

Work Summary

*Note: For all limestone related cleaning and sealing, contractor shall reference the attached documents provided from the Indiana Limestone Institute.

1. Contractor must be certified to utilize the façade access system by the façade access system manufacturer, Sky Rider Equipment Co., Inc. prior to using the equipment at 501 I St.

a. It is the contractors responsibility to coordinate and procure this training

i. All contractors working on site must be certified on the system by Sky Rider

ii. Training certificates from Sky Rider showing certification to work on the Matsui system must be provided to the GSA prior to work starting

b. The contractor is responsible for obtaining a 30 day pre-use inspection permit from Sky Rider prior to utilizing the system. Certification and permit documents from Sky Rider must be provided to the GSA prior to work starting. If the 30-day inspection permit expires it is the contractors responsibility to obtain an extension or new permit from Sky Rider and provide that to the GSA.

c. The GSA will provide the 30-day use permit for work.

d. Sky Rider POC is Elsa Lopez, Office: (562) 364-7519, Cell: (650) 296-5125, elsa.l@sky-rider.com

2. Complete a “building scrub” to remove all mold, dirt, and debris from the exterior façade of the entire building. Images of a cleaned section next to a dirty section of building can be found in Exhibit 1. The intent is to clean the exterior building to this standard. Special care should be taken to not damage the limestone or the caulking between panels during the cleaning phase.

a. This includes the back sides of the exterior walls, rotunda, garden/loading dock area, and garden/sally port area, and the exterior walls which are identified in Exhibit 2.

b. Work that takes place at the main entrance must be scheduled during the weekend.

3. The building has two exterior spaces known as the “Loading Dock” and “Sally Port” areas. The area is surrounded by a concrete and granite wall that will need to be cleaned on top and both sides of dirt, debris, and bird droppings. These areas can be seen in Exhibit 2.

a. Work that takes place in this area must be scheduled during the weekend.

b. The surrounding areas (parking areas, drains, etc.) must be cleaned prior to Monday morning when building occupants arrive.

4. Next to these two areas are the “Gardens” (north and south) each having their own out-building.

The walls are concrete and the out-buildings are lined in limestone and granite and shall be cleaned of dirt, debris, and bird droppings.

a. The granite inside and outside of the gardens must be cleaned.

b. The walkways inside the garden and out to the sidewalk must be cleaned.

c. The green railed fencing must be cleaned.

d. This includes the inside of the exterior roof area of the out-buildings.

5. Seal all exterior limestone panels with an appropriate solution that is meant to seal limestone.

The entire building from the ground level to the roof must be sealed. This includes the areas with limestone panels mentioned in bullet #2-4.

a. Work that takes place at the main entrance must be scheduled during the weekend.

6. Clean the granite panels found between the limestone and sidewalks around the building. These should be free of water stains, bird droppings, and streaks once finished. All granite on the premises is included with exception of the fountain.

a. Work that takes place at the main entrance must be scheduled during the weekend.

7. All exterior windows shall be cleaned and free of dirt, streaks, hard water stains, and shall not be cloudy. Contractor shall remove any mineral deposits that have built up over the years. This includes the rotunda.

a. Work that takes place at the main entrance must be scheduled during the weekend.

8. Contractor is responsible for any sidewalk closures, lane closures, or other required coordination with the City of Sacramento necessary to perform the work.

a. Any work blocking the ADA ramp at the front of the building must be scheduled with at least 10 days notice and have signage placed at both ends of the ramp on the first day of notice and through the work cycle.

9. Exterior louvres attached to the facility are a part of the project and must be cleaned.

10. Metal clad panels on the 4th and 16th floor exterior are a part of the project and must be cleaned.

11. All exterior windows shall be cleaned and free of dirt, streaks, hard water stains, and shall not be cloudy. Contractor shall remove any mineral deposits that have built up over the years.

a. In the event there is blast protection film the Contractor shall follow the manufacturer's recommendations for appropriate window cleaning methods.

12. Contractor is responsible for any sidewalk closures, lane closures, or other required coordination with the City of Sacramento necessary to perform the work.

13. All exterior windows shall be cleaned and free of dirt, streaks, hard water stains, and shall not be cloudy. Contractor shall remove any mineral deposits that have built up over the years.

a. In the event there is blast protection film the Contractor shall follow the manufacturer's recommendations for appropriate window cleaning methods.

14. Contractor is responsible for any sidewalk closures, lane closures, or other required coordination with the City of Sacramento necessary to perform the work.

15. The contractor is responsible for providing their own platform at this location.

1. All exterior windows shall be cleaned and free of dirt, streaks, hard water stains, and shall not be cloudy. Contractor shall remove any mineral deposits that have built up over the years.

a. In the event there is blast protection film the Contractor shall follow the manufacturer's recommendations for appropriate window cleaning methods.

Full compensation for providing all labor, materials, tools and equipment necessary to meet the above requirements shall be considered included in the contract price and no additional compensation shall be allowed therefore.

1.2 POINTS OF CONTACT

Name Role Building/Agency Office Cell David White Contracting Officer 650 Capitol Mall/GSA - (916) 947-3052

Robert Rudd Project Manager 650 Capitol Mall/GSA - (916) 281-5213

Alisha Decena

Building Manager 501 I St./GSA (916) 930-2120 (916) 216-7858

Austin Schneider

Building Manager 650 Capitol Mall 801 I St./GSA

(916) 498-5360 (916) 340-5921

Monica Perez Building Manager 2800 Cottage Way/GSA (916) 978-5665 (916) 717-0159

1.3 USE OF SITE

Limit use of the premises to the immediate work area. Do not disturb portions of the Federal Building beyond the immediate work area. The contractor must repair or replace damage to existing site features caused by the service. Protect the building during the service period. Keep driveways, loading docks, elevators, elevator entrances, and building entrances clear. These areas are not authorized for parking or material storage without permission. Contractor will schedule deliveries to minimize on-site storage of materials and equipment. The contractor shall designate a representative to receive building materials.

Government personnel are not authorized to receive shipments or deliveries upon behalf of a service contractor.

Work in the Federal Office Buildings will require coordination with a GSA representative. Please contact him/her to coordinate arrangements upon behalf of the project.

1.4 QUALITY ASSURANCE

The contractor shall designate a specific individual as a project/contract manager. The project manager or approved designate will be on site during the time work is performed on this contract.

1.5 PROJECT COMPLETION PERIOD

The work of the project must be completed within 365 days after the notice to proceed (NTP) is issued by the Contracting Officer. The NTP will not be issued until all bonds and insurance has been collected and all security clearances have been processed.

Completion of work is herein defined as follows: All work specified shall be fully completed per the plans and specification and accepted by the governing agencies, all certifications, and guarantees are submitted to the Government.

The working days specified shall be inclusive of all service windows, punch list buy-off, and final acceptance of all facilities.

The project work shall not be considered complete until these items have been addressed. They are:

a. Published punch-list work items must be corrected in a manner acceptable to the Government.

b. The final payment request accompanied by a release of claims form must be made available to the Government.

2.0 PRODUCTS

The work of this project shall be completed using new products delivered to the job site in their original unopened, undamaged containers. Provide only products manufactured or specifically recommended for use on existing finishes.

Whenever available, products, equipment and materials utilized and installed under this statement of work shall comply with the following energy efficient and eco-friendly standards:

a. Energy-efficient (ENERGY STAR® or Federal Energy Management Program (FEMP)-designated);

b. Water-efficient;

c. Biobased;

d. Environmentally preferable (e.g., EPEAT-registered, or non-toxic or less toxic alternatives);

e. Non-ozone depleting; and/or

f. Made with recovered materials.

GSA purchases for products and services must meet sustainable product requirements. Every contractor shall comply with these sustainable product requirements by using products that meet the criteria and standards listed in the PBS Sustainable Product Requirements document at the time of contract award, and or exercise of option modification. The contractor is also responsible for providing sufficient documentation to confirm that the products provided have the required sustainable criteria, upon the Government's request.

2.1 SCHEDULE SUBMISSION

The contractor shall submit a schedule regarding the work of this project to the Government for review and approval before the work of this project shall begin.

2.2 SECURITY CLEARANCE REQIREMENTS AND INFORMATION

The contractor shall submit a completed Contractor Information Worksheet (CIW) for each employee working on the project to the Zone-D Credentialing Office. In addition, a Requesting Official worksheet must be filled out with each employee working on the contract and sent to Robert Rudd for verification.

The forms will be provided by the Project Manager, Robert Rudd, along with further guidance on submittal procedures.

It is the contractor’s responsibility to verify the forms are completed correctly, properly endorsed and dated, and they contain the necessary fingerprint forms. Please note recent history suggests the evaluation of the forms by the Defense Homeland Security Agency (DHS) requires a minimum of nine working days. The actual evaluation time is a function of DHS’s work load. Submit the forms a suitable period in advance of the actual start of work in order to maintain the projected service schedule. Only those individuals who receive a favorable security response from a DHS will be allowed to work on the project. The submitted security clearance information is maintained in the strictest confidence, and once a favorable report is provided it is valid for a five year period.

3.0 CODES AND STANDARDS

The contractor shall be responsible for the delivery of a completed project that is operational for its intended use by the building tenants and visitors, fits with its building context and its systems, and its surrounding environment.

The work of this project shall conform to the following codes. They are:

P-100 Facility Standards for the Public Building Service (GSA) UBC Uniform Building Code UL Underwriter’s Laboratory NEC National Electrical Code UMC Uniform Mechanical Code NFPA National Fire Protection Association Title-24 Accessibility Standards, State of California ASHRAE American Society of Heating, Refrigerating and Air Conditioning ADA American Disabilities Act OSHA 29 CFR § 1910.30 Fall Hazard and Equipment Hazard Training OSHA 29 C.F.R. § 1910.140 Personal Fall Protection Systems OSHA 29 C.F.R. § 1910.66 Powered platforms for building maintenance OSHA 29 C.F.R. § 1910.27 for scaffolds and rope descent systems

Also Required Documentation

1. Tower Safety Services Operating Procedures and Outline Sheet (OPOS) (501 I St.)

2. Sky Rider Operations and Service Manual (501 I St.)

3.1 WORKING HOURS

The normal hours of operation of this Federal Building are 7:00 AM to 5:00 PM, Monday through Friday, unless stated otherwise. The work requirements of the project will be scheduled during the buildings normal hours of operation with the exception outlined in “Work Summary” under 501. The parking lot may be available for contractor use and staging during that time period, but must be scheduled with the project manager and/or building manager in advance.

3.2 CLEAN-UP OPERATIONS

The project site must be left in a clean condition at the conclusion of each work shift to the satisfaction of the tenant and\or Governing Agencies, whichever is more stringent. Once the project has been completed and accepted by the Government, the project site must be thoroughly cleaned and ready for occupancy or use. Contractor shall employee green cleaning practices whenever possible. Payment for final cleanup shall be considered as included in the various contract items and no additional compensation will be allowed therefore.

4.0 GOVERNMENT OCCUPANCY

Please note the Government will occupy the Federal Building throughout the entire period of service.

Cooperate fully with the Government representatives during service operations to minimize conflicts with normal building operations. Circulation within corridors and access to elevators, stairwells, use of occupancy of office suites, and access to the parking lots shall be maintained. Provide necessary barricades, service tape, and temporary signage as required to define the project site and redirect circulation flow as conditions require.

5.0 ROLES AND RESPONSIBILITIES

The contractor shall be required to coordinate the current project with other ongoing service activities at the site.

Coordinate with property manager service work that may generate noise, airborne debris, and odors within adjacent occupied areas. Do not proceed with such work until the project representatives grant approval for such operations. Disruptive service operations must be conducted before or after standard business hours.

Coordinate seventy two hours in advance with the project representatives’ disruption of building pathways, systems, and utilities. Disruptions to these building elements shall be accomplished before or after normal business hours, and restoration of service must be made not later than two hours before the resumption of the next business day.

Contractor shall submit a list of subcontractors to be used for this project.

Supervision: Contractor shall supervise and direct the efficient performance of the Work in accordance with Contractor's best skill, attention and judgment. Contractor shall be solely responsible for the means, methods, techniques, sequences and procedures of service and shall be responsible to see that the finished Work complies fully and completely with the Contract Documents.

Superintendence: Contractor shall keep a competent resident superintendent on the Work site at all times during service, which superintendent shall not be replaced without written notice to Government, except under extraordinary circumstances. Such superintendent shall be Contractor's representative at the site and shall have authority to act on behalf of Contractor. All communications given to such superintendent shall be as binding as if given to Contractor.

Labor and Workmanship: Where the Contract Documents refer to particular service means, methods, techniques, sequences or procedures, or indicate or imply that such are to be used on the Work, such mention is intended only to indicate that the operations of Contractor shall be such as to produce the quality of work implied by the operations described, but that the actual determination of whether the described operations may be safely or suitably employed on the Work shall be the responsibility of Contractor, who shall notify the Government in writing of the actual means, methods, techniques, sequences or procedures which will be employed on the Work, if they differ from those mentioned in the Contract Documents. All loss, damage or liability, or cost of correcting defective work arising from the employment of any service means, methods, techniques, sequences or procedures, shall be borne by Contractor, notwithstanding that such service means, methods, techniques, sequences or procedures are referred to, indicated in or implied by the Contract Documents. Contractor shall at all times enforce strict discipline and good order among its employees and shall not employ on the Work any unfit person or anyone not skilled in the task assigned to him.

Materials and Equipment: All materials and equipment incorporated into the Work shall be new, unless otherwise specifically provided in the Contract Documents. Materials and equipment not otherwise designated by detailed specifications shall be of the best commercial quality and shall be suitable for the purpose intended. If required by the Government Contractor shall furnish evidence satisfactory to Government as to the kind and quality of materials and equipment. Any material specified by reference to the number, symbol or title of a specific standard such as that of the American Society for Testing Materials (ASTM), a Product or Commercial Standard, Federal Specification or other similar standards, shall comply with the requirements of the dated revisions stated in the Specifications, or where the Specifications contain no revision date, shall comply with the requirements of the latest revision thereof and any supplement or amendment thereto in effect on the date of receipt of bids. The standards referred to, except as specifically modified in the Specifications, shall have the same force as if they were printed in full context within the Specifications.

Manufacturers' Instructions: All materials and equipment shall be applied, installed, connected, erected, used, conditioned and cleaned in accordance with the instructions of the respective manufacturer, fabricator or processor, unless otherwise expressly provided in the Contract Documents.

Substitute Materials or Equipment: In the event the Specifications or applicable law, ordinances, rules or regulations permit Contractor to furnish or use a substitute equal in quality to any material or equipment specified, and in the event Contractor wishes to furnish or use any such substitute, Contractor shall, prior to the commencement of service of the Work, make written application to the Government for approval of such a substitute:

a. Certifying in writing that the proposed substitute will perform adequately all functions called for by the general design, will be similar and of equal substance to that specified and will be suited to the same use and capable of performing the same function as that specified;

b. Stating whether its incorporation in or use in connection with the Project is subject to the payment of any license fee or royalties; and

c. Identifying all variations of the proposed substitute from that specified and indicating available maintenance service.

No substitute whatsoever shall be ordered or installed without the prior written approval of the Government, which approval the Government may give or withhold in its sole discretion and which approval the Government may condition upon Contractor's furnishing such other data about the proposed substitute as the Government may consider pertinent and such performance guaranties and bonds as the Government may require, all at Contractor's sole cost and expense.

Provide protection for existing items to remain within work areas.

Properly dispose of all solid, liquid, and gaseous contaminants in accordance with all local codes and regulations. Comply with all applicable local and state laws, ordinances, and regulation regarding noise control.

5.1 GOVERNMENT PARTICIPATION IN THE PROJECT PROCESS

The Government will participate in the project process in these respects. They are:

a. Review materials submitted by the contractor.

b. Inspect work in progress and convey notice of deficient work items to the Contractor in writing.

c. Provide a final inspection and a final acceptance of the work.

d. Process service progress (when applicable) and final payments in accordance with contract requirements.

6.0 SAFETY AND HEALTH

All work shall comply with the applicable requirements of 29 CFR 1910/1926 and 40 CFR 761. All work shall comply with applicable local building codes and health requirements. Where there is a conflict between applicable regulations, the most stringent shall apply.

The contractor shall assume full responsibility and liability for compliance with all applicable regulations pertaining to the health and safety of personnel during the execution of work, and shall hold the Government harmless for any action on its part or that of its employees or subcontractors that result in illness or death.

The contractor shall provide all necessary safety equipment and ensure that such equipment and all relevant safety procedures are adequate for contract performance.

6.1 PROJECT PAYMENT

Typically, one payment is made at completion of the project. If this is not adequate, please request progress payments from the contracting officer during the proposal phase of the solicitation. Progress payments will be approved on a case-by-case basis.

7.0 WARRANTY

The contractor warrants materials supplied and work provided under this contract are free from defects.

The contractor shall remedy at his expense any failure to conform to the specifications, defects in material, and unacceptable workmanship. This warranty shall continue for a period of 1 year from the date of final project acceptance.

8.0 EXHIBITS

· Exhibit 1: Cleaned and sealed 501 rotunda wall example

· Exhibit 2: 501 Loading Dock, Sally Port, Gardens, and Out-Buildings

· Exhibit 3: OPOS - 650 Capitol Mall, Sacramento

· Exhibit 4: OPOS - 501 I Street, Sacramento

· Exhibit 5: The Contractor's Handbook on Indiana Limestone

· Exhibit 6: How to Avoid Small Area Stains and Blemishes

· Exhibit 7: Indiana Limestone Handbook, 22nd Edition

· Exhibit 8: 501 I Street Hose Bib Locations

· Exhibit 9: 801 I Street Hose Bib Locations

· Exhibit 10: 801 I Street Hose Bib Locations

· Exhibit 11: 2800 Cottage Way Hose Bib Locations

· Exhibit 12: 650 Capitol Mall Hose Bib Locations

· Exhibit 13: Prosoco Limestone Restorer Data Sheet

End of Document

Exhibit 8: Hose bib locations at 501 I Street marked by dotsDocuSign Envelope ID: FB5D9CD1-10B0-4BC9-9048-EC3B27E6F53F

Exhibit 9: Hose bib location at 801 I Street lower level

Exhibit 10: Hose bib locations 801 I Street at Street level

Exhibit 11: Hose bib locations at 2800 Cottage Way

Exhibit 12: Hose bib locations at 650 Capitol Mall

Sure Klean® Limestone Restorer is a concentrated acidic cleaner for unpolished limestone, concrete and cast stone surfaces. Safely removes atmospheric dirt, mildew and many other surface stains without risk of bleaching or discoloration.

Ideal for lightly to moderately soiled surfaces.

Limestone Restorer is safer and easier to use than conventional acidic or abrasive cleaning systems.

Contains no hydrofluoric acid. Use in combination with pressure water rinsing.

ADVANTAGES

• Easy-to-use, one step cleaner.

• Water rinsable. No substrate neutralization required.

• When properly used, safer for surfaces than conventional cleaning systems.

• Will not damage window glass.

Limitations

• Not for use on polished granite, limestone, marble or travertine.

• May etch smooth, acid-sensitive surfaces.

• On fired clay brick and pavers that are prone to metallic staining, Sure Klean® Restoration Cleaner or Light Duty Restoration Cleaner may be more suitable.

• Not for removal of heavy carbon staining. Use Sure Klean® 766 Limestone & Masonry Prewash.

• Not for use on treated low-E glass; acrylic and polycarbonate sheet glazing; and glazing with surface-applied reflective, metallic or other synthetic coatings and films.

REGULATORY COMPLIANCE

VOC Compliance Sure Klean® Limestone Restorer is compliant with all national, state and district VOC regulations.

TYPICAL TECHNICAL DATA

FORM Clear, slight amber liquid

SPECIFIC GRAVITY 1.14

pH 0.18 @ 1:6 dilution WT/GAL 9.47 lbs

ACTIVE CONTENT not applicable

TOTAL SOLIDS not applicable

VOC CONTENT not applicable

FLASH POINT not applicable

FREEZE POINT <–22° F (<–30° C)

SHELF LIFE 3 years in tightly sealed, unopened container

SAFETY INFORMATION

Always read full label and SDS for precautionary instructions before use. Use appropriate safety equipment and job site controls during application and handling.

24-Hour Emergency Information:

INFOTRAC at 800-535-5053

CLEANING & PROTECTIVE TREATMENTS

Sure Klean®

Product Data Sheet • Page 1 of 3 • Item #20034 – 062321 • ©2021 PROSOCO, Inc. • www.prosoco.com

Limestone Restorer

PREPARATION

Protect people, vehicles, property, plants, and all non masonry and acid-sensitive surfaces from cleaner, rinse, residue, fumes and wind drift.

Protect and/or divert auto and pedestrian traffic.

Finish cleaning before installing windows, doors, hardware, light fixtures, roofing materials and other non masonry items. If already installed, protect before cleaning. Caulking and sealant materials should be in place and thoroughly cured before cleaning begins.

Surface and Air Temperatures Best air and masonry surface temperatures for cleaning are 40° F (4° C) or above. Cleaning when temperatures are below freezing or will be overnight may harm masonry. If freezing conditions have existed, let masonry thaw before cleaning.

Equipment Apply using a densely-filled masonry washing (tampico) brush, roller or low pressure (50 psi max) spray. Do not apply with high pressure spray equipment. This drives the cleaner deep into the surface, making complete rinse difficult.

Discoloration may result.

Rinse with enough water and pressure to flush spent cleaner and dissolved soiling from the masonry surface and surface pores without damage. Inadequate rinsing leaves residues which may stain the cleaned surface.

Masonry-washing equipment generating 400–1000 psi with a water flow rate of 6–8 gallons per minute is the best water/pressure combination for rinsing porous masonry. Use a 15–45° fan spray tip. Heated water (150–180° F; 65–82° C) may improve cleaning efficiency. Use adjustable equipment for reducing water flow-rates and rinsing pressure as needed for sensitive surfaces.

Rinsing pressures greater than 1000 psi and fan spray tips smaller than 15° may permanently damage sensitive masonry. Water flow-rates less than 6 gallons per minute may reduce cleaning productivity and contribute to uneven cleaning results.

Storage and Handling Store in a cool, dry place with adequate ventilation.

Always seal container after dispensing. Do not alter or mix with other chemicals. Published shelf life assumes upright storage of factory-sealed containers in a dry place. Maintain temperature of 45–100° F (7–38° C). Do not double stack pallets.

Dispose of unused product and container in accordance with local, state and federal regulations.

APPLICATION

Read “Preparation” and the Safety Data Sheet before use.

ALWAYS TEST a small area of each surface to confirm suitability and desired results before beginning overall application. Test each type of masonry and each type of stain. Test with the same equipment, recommended surface preparation and application procedures planned for general application. Let test

Product Data Sheet Sure Klean® Limestone Restorer

Product Data Sheet • Page 2 of 3 • Item #20034 – 062321 • ©2018 PROSOCO, Inc. • www.prosoco.com

Recommended for these substrates. Always test.

Coverage is in sq.ft./m. per gallon of concentrate.

Substrate Type Use? Coverage

Architectural Concrete Block*

Burnished

Smooth Split-faced Ribbed no yes yes yes

300–700 sq.ft.

28–65 sq.m.

Concrete

Brick Tile Precast Panels Pavers Cast-in-place yes yes yes yes yes

300–700 sq.ft.

28–65 sq.m.

Fired Clay

Brick

Tile Terra Cotta (unglazed)

Pavers yes no no yes

300–700 sq.ft.

28–65 sq.m.

Marble, Travertine, Limestone

Polished no N/A

Unpolished yes 100–250 sq.ft.

9–23 sq.m.

Granite Polished no N/A

Unpolished yes 300–400 sq.ft.

28–37 sq.m.

Sandstone Unpolished yes 100–250 sq.ft.

9–23 sq.m.

GFRC Smooth yes 150–500 sq.ft.

14–47 sq.m.

Slate Unpolished yes 300–400 sq.ft.

28–37 sq.m.

Repeated applications may etch surfaces.

*For colored block, Sure Klean® Custom Masonry Cleaner may be more appropriate.

Sure Klean® Light Duty Concrete Cleaner is a more suitable product.

Sure Klean® Restoration Cleaner or Light Duty Restoration Cleaner may be more appropriate.

Always test to ensure desired results. Coverage estimates depend on surface texture and porosity.

area dry 3–7 days before inspection and approval.

Make the test panel available for comparison throughout the cleaning project.

Dilution Dilute with a minimum 2 parts and up to 6 parts water to 1 part Limestone Restorer concentrate.

Conduct test panels to determine the mildest dilution ratio which produces the most effective cleaning solution. ALWAYS TEST the final dilution rate producing the desired level of cleanliness.

When diluting, pour cold water into empty polypropylene or polyethylene bucket, then carefully add cleaner. Acidic liquids and fumes attack metal.

Application Instructions On some surfaces, repeated applications may etch surfaces. Always use the mildest cleaning solution possible. Always test before overall application.

1. Working from bottom to the top, prewet the surface with clean water.

2. Apply the diluted cleaner liberally to the masonry surface.

3. Let the cleaning solution dwell 3–5 minutes.

Reapply. Light agitation improves cleaning results.

4. Working from bottom to the top, rinse the treated area thoroughly. If pressure water equipment is not available, use a garden hose with nozzle adjusted to a tight stream.

Cleanup Clean tools and equipment using fresh water.

WARRANTY

The information and recommendations made are based on our own research and the research of others, and are believed to be accurate. However, no guarantee of their accuracy is made because we cannot cover every possible application of our products, nor anticipate every variation encountered in masonry surfaces, job conditions and methods used. The purchasers shall make their own tests to determine the suitability of such products for a particular purpose.

PROSOCO, Inc. warrants this product to be free from defects. Where permitted by law, PROSOCO makes no other warranties with respect to this product, express or implied, including without limitation the implied warranties of merchantability or fitness for particular purpose.

The purchaser shall be responsible to make his own tests to determine the suitability of this product for his particular purpose. PROSOCO’s liability shall be limited in all events to supplying sufficient product to re-treat the specific areas to which defective product has been applied. Acceptance and use of this product absolves PROSOCO from any other liability, from whatever source, including liability for incidental, consequential or resultant damages whether due to breach of warranty, negligence or strict liability. This warranty may not be modified or extended by representatives of PROSOCO, its distributors or dealers.

CUSTOMER CARE

Factory personnel are available for product, environment and job-safety assistance with no obligation. Call 800-255-4255 and ask for Customer Care – technical support.

Factory-trained representatives are established in principal cities throughout the continental United States. Call Customer Care at 800-255-4255, or visit our web site at www.prosoco.com, for the name of the PROSOCO representative in your area.

Product Data Sheet Sure Klean® Limestone Restorer

Product Data Sheet • Page 3 of 3 • Item #20034 – 062321 • ©2018 PROSOCO, Inc. • www.prosoco.com

BEST PRACTICES

Not for use on polished granite, limestone, marble or travertine. May etch smooth, acid-sensitive surfaces. Not for removal of heavy carbon staining.

Apply using low pressure spray, 50 psi maximum. Do not apply with high pressure spray equipment. This drives the cleaner deep into the surface, making complete rinse difficult.

Discoloration may result.

Test panels should determine effectiveness of the cleaning solution and proper dilution ratio. Dilute with a minimum two parts and up to six parts water to one part concentrate.

Rinse with enough water and pressure to flush spent cleaner and dissolved soiling from the masonry surface and surface pores without damage. Inadequate rinsing leaves residues which may stain the cleaned surface.

Never go it alone. For problems or questions, contact your local PROSOCO distributor or field representative. Or call PROSOCO technical Customer Care toll-free at 800-255-4255.