A2 SOW_LTUY242011_20250226.pdf

STATEMENT OF WORK

Project LTUY242011 Repair West Base Backflow Preventer

Date: 26 February 2025

Project LTUY242011 Repair West Base Backflow Preventer P a g e | 1

Purpose

The contractor shall furnish all labor, equipment, and tools necessary to perform the repair work for the replacement of the existing backflow preventer assembly. The backflow preventer assembly has failed the St. Louis County annual testing and needs to be replaced. The existing backflow preventer is in a below ground level valve pit/vault and is located in the West Parade Field of Jefferson Barracks Air National Guard Station (JB ANGS). This is one of two (2) backflow prevention assembly systems for the domestic water service at JB ANGS.

Special Requirements

1. Contractor installer shall be a licensed plumber from St. Louis County and shall be experienced in the removal and installation of similar sized backflow preventer assemblies.

2. Contractor to provide proof of OHSA approved permitting certification for permit-required in confined space work.

3. Contractor to use appropriate personal protection and equipment for proper control of hazards.

Vault is approximately 40 inches deep and valve train is approximately 7 inches off the floor of the vault.

4. Removal of the old backflow assembly and installation of the replacement unit shall be completed during a weekend to avoid disruptions of water service to base facilities. Dates to be coordinated following contract award at the pre-construction conference. All other work (e.g., post-install testing and inspections) can be accomplished during regularly established Air National Guard duty hours, 7:00 AM to 4:00 PM. Work will not be performed on federally recognized holidays.

5. All work shall be coordinated with the Civil Engineering Office’s Project Manager, John Matthews, (314) 527-8226 or Deputy Base Civil Engineer, Mark Lloyd (314) 527-8360.

6. All equipment and material to be utilized by Contractor shall be submitted to the Contracting Officer or his official representative for approval in accordance with the AF Form 66, Schedule of Material Submittals. Allow sufficient review time so that installation will not be delayed because of the time required to process submittals, including time for re-submittals.

7. A site visit will be scheduled by the Contracting Officer to assure the specifics of this project have been witnessed firsthand by all interested contractors. Subsequent visits may be arranged through the Civil Engineering (CE) Office. The contractor shall become familiar with all details of the work, field check and verify all dimensions and specification stated herein and shall advise the Contracting Officer of any discrepancy before performing the work.

8. In addition to manufacturer’s warranties on equipment and supplies used in this project, all work shall be covered by a one-year warranty on materials and workmanship.

9. Contractor must comply with all OPSEC (Operational Security) and AT (Anti-Terrorism) requirements as stipulated by the project solicitation and during construction conferences.

10. Contractor shall deliver a schedule, either a GANTT or AF Form 3064 within 14 days of Notice to Proceed.

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11. Any government property damaged due to contractor negligence during the installation of the Backflow Preventer will be contractor’s responsibility to repair or replace the damage property to the same or newer condition as prior to property being damaged.

12. Contractor shall deliver or create a complete and useable product to the government. The contractor shall assist the project manager in providing information to complete the DD Form 1354, Transfer and Acceptance of Real Property, to capture cost of new equipment or capital improvements.

Scope of Work

1. Description of existing Backflow Prevention System (see Figure 2 & Figure 3)

a. Type: Double Check Valve Backflow Preventer

b. Manufacturer: FEBCO

c. Model: 805

d. Type: YD

e. Size: 8.0 inch

f. Serial Number: B13880

2. Contractor shall field-verify above information for the existing backflow preventer.

3. Remove existing backflow preventer and replace with new backflow preventer assembly.

Contractor to remove existing inlet and outlet gate valves and leave on site for government reuse. Contractor shall properly dispose of remaining assembly per local government regulations.

4. New backflow preventer assembly is to include in-line double check valves and two (2) isolation/shutoff valves. Both check valves shall be removable and serviceable without the use of special tools.

5. New backflow preventer assembly shall be a lead-free Watts Model 757 or comparable system on the Missouri Approved Backflow Assembly List.

6. Note, new backflow preventer valve train is expected to be shorter than existing backflow preventer overall length and a flanged spool fitting is recommended to be installed. Length of spool to be determined during site visit. Provide stand or other support as required for the new assembly. Current assembly is supported by concrete blocks within the vault as shown in Figure 3.

7. Within 3 days of project installation completion, contractor shall perform St. Louis County required annual backflow preventor testing. JB ANG Civil Engineering will witness backflow preventer testing. New assembly shall pass the annual test and contractor shall provide Civil Engineering witness a copy of the Backflow Prevention Assembly Test Data and Maintenance Report form. Contractor shall file test results to St. Louis County within 30 days per state regulations and St. Louis County Ordinance.

Applicable Codes

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Major design codes and standards, which are applicable to Air National Guard (ANG) construction, are indicated below. This listing is not intended to be all-inclusive. It is the Contractor’s responsibility to refer to applicable codes and to comply with any other applicable codes and standards as needed.

1. Local plumbing codes and standards and codes as required by St. Louis County compliance is required. Contractor shall adhere to St. Louis County Ordinances, permitting, and safety regulation.

2. Air National Guard Engineering Technical Letters (ANGETL’s):

http://www.wbdg.org/ffc/ang/engineering-technical-letters-angetl

3. Air Force Regulations – Apply as directed and when the ANG is a tenant on an Air Force or Reserve Host Base.

4. Standards established by the public utility having jurisdiction – Water, Sewer, Storm Drainage, Electrical furnished by Public Utilities

5. Code of Federal Regulations, State Regulations where State has jurisdiction – Energy, Environmental Protection, Safety

6. OSHA; AFOSH – Safety

Figure 1: Location of West Vault

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Figure 2: West Base Meter and Backflow Preventer Vaults

Figure 3: Existing Backflow Preventer Valve Train

General Requirements

1. Access and General Protection/Security Policy and Procedures. This standard language is for contractor employees with an area of performance within Government controlled installation, facility, or area. The contractor shall comply with all applicable installation/facility access and local security policies and procedures and shall provide all information required by Security Police for processing background checks to meet installation access requirements. The

Project LTUY242011 Repair West Base Backflow Preventer P a g e | 5 contractor shall ensure compliance with all personal identity verification requirements as directed by DoD, HAF and/or local policy. Should the Force Protection Condition (FPCON) change, the Government may require changes in contractor security matters or processes.

2. Only those persons approved by the base Security office shall enter the Jefferson Barracks Air National Guard Station. Contractor access to Jefferson Barracks Missouri Air National Guard Station shall be restricted to the location of project. All general and sub-contractor employees (referred to as contract personnel) are required to show a valid photo identification to enter the installation. If driving, a valid state driver’s license must be in their possession. Contract personnel are advised that they are subject to random search while on government premises.

Contract personnel will sign in daily at the Main Gate.

3. The general contractor shall submit installation access requests through the Defense Biometric Identification System (DBIDS) at https://dbids-global-enroll.dmdc.mil/preenrollui/#/ and provide the enrollment confirmations to the CE Project Manager for all personnel who will be working under this contract. Submit at least three (3) days prior to required date of personnel access.

4. Normal Government activities in the vicinity of this project may be kept in full or partial operation during construction. In these cases, ensure that government employees are allowed to safely enter and exit the building being worked on. The Contractor shall coordinate with government representatives and schedule construction activities so as to allow the safe and efficient operation of these activities.

5. All parking of vehicles and equipment shall be in area provided at job site.

6. Contractor shall keep construction area(s) neat and orderly on a daily basis and will be responsible for clean-up upon project completion.

7. All contractor vehicles, trucks, dumpsters, and similar vehicles and equipment, shall be checked before travelling on base roads so as not to leave behind debris, dirt, rock and mud. Contractor will immediately take actions to remove any of this material.

8. Contractor will be responsible for the storage, transportation, and disposal of all demolition and waste materials. Accumulations of refuse on the site will not be permitted.

9. All work shall be performed in accordance with applicable Occupational Safety and Health Administration (OSHA), Air Force Occupational Safety & Health (AFOSH), Environmental Safety, and all Federal, State, Local and Base regulations and requirements.

10. The Government will not be responsible for property belonging to, or under the control of the Contractor and no secure storage will be provided.

11. All personnel shall be briefed on the proper procedures for working on a Government installation.

https://dbids-global-enroll.dmdc.mil/preenrollui/#/