109 AW - SOW Replace Backflow Preventer.pdf

STATEMENT OF WORK

Project Number VBDZ242108

06 March 2024 Replace Backflow Preventer

DESCRIPTION:

The existing backflow preventer is leaking and requires replacement. The Contractor shall provide all construction services and materials to replace the existing Reduced Pressure Zone (RPZ) backflow preventer with a double-check (DC) valve backflow preventer. The backflow preventer is in an aboveground outdoor enclosure within a secure area. The removal of the existing unit and installation of the new unit shall occur on the same day.

Current Backflow preventer within the enclosure

SCOPE

1.1. Remove the existing RPZ 1700 backflow preventer.

1.1.1. Part of the outdoor enclosure may be disassembled for the duration of the project.

The enclosure must be put back together and sealed after the installation of the new backflow preventer is complete.

1.2. Contractor shall take care not to damage the pipe and the yoke and stem valves on both sides of the backflow preventer during the removal of the old unit and installation of the new unit.

Replace the silver part. Keep the yoke and stem valves.

1.3. Contractor shall take care not to damage the leak detector assembly. The leak detection assembly shall remain in place. Do not remove the leak detection assembly. The assembly is shown in the figure below.

Leak Detection Assembly

1.4. Contractor shall provide and install a C200-OSY 10” AMES DCV 0191203 double-check valve backflow preventer per manufacturer requirements and in compliance with relevant codes and regulations. The specification is attached below. Contractor is required to provide the parts submittal for approval before proceeding with the work.

1.5. Alternate materials will require COR’s approval and shall match the original material performance.

1.6. Contractor shall provide and install all the couplings, fitting, clamps, sleeves, gaskets and any other materials necessary to properly install the new backflow preventer.

1.7. Contractor shall test the backflow preventer following ASSE Series 5000 and submit the DOH-1013 test form to the government immediately after installation. The form shall contain the tester’s signature and certificate number.

1.8. Contractor shall fill out and submit AF Form 843 and AF Form 845. Forms are attached.

1.9. The tester shall have a current New York State Department of Health (NYSDOH)- approved backflow certification. Contractor to submit certification to COR in advance of testing. Tester shall be listed on the DOH website: Certified Backflow Testers ‐ County Listing (ny.gov)

1.10. The new assembly shall pass the test. If deficiencies are encountered, Contractor shall inform the base, correct deficiencies, and test again. The expectation for completion of the contract is to install a backflow assembly that meets the regulatory requirements and passes testing.

1.11. There shall be no leaks after the installation.

1.12. Contractor shall flush the new backflow preventer for 10 minutes through port #4 (last port following the water flow) before valve #2 (last valve following the water flow) is open to put the device in service.

1.13. The work shall be completed within one workday and on either of the listed below Fridays.

Leak detection assembly remains in place. Do not damage. Do not remove.

1.13.1. March 8, March 27, April 5, April 19, April 26, May 10, May 24, June 7, June 21, July 19.

1.13.2. Contractor shall notify the base two weeks before the work begins.

1.14. Contractor shall comply with all State and Local regulations regarding municipal water supply lines and their related fixtures.

1.15. Work materials shall be free of debris and contaminants.

1.16. Contractor shall move the removed RPZ to the back of the Cold Storage shed that is located about 1,000 ft from the work site.

1.17. Contractor is responsible for site cleanliness and removal of post-construction debris and site restoration if disturbe

OPTION: Replace ¾” bypass RPZ at the leak detection assembly with Watts LF007M3-QT and provide passing test results on DOH 1013 and AF843 and AF845 forms.

1.18. Bid item will also comply with plumbing rules and codes listed above.

Backflow preventer enclosure

Current Backflow Preventer

Leak detection

Replace the silver part of the backflow preventer. Keep the stem and yoke valves.

Yoke and Stem Valve

1.1. CONTRACTOR REQUIREMENTS

a. The contractor shall comply with all applicable installation/facility access and local security policies and procedures, which may be obtained from the Contracting Officer’s Representative (COR). The contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the local installation’s Security Forces, Director of Emergency Services or local Security Office. The 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.

b. Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Database (TSDB) (DODIO

2000.16V1_DAFI 31-145, DAFI 31-101 and DODM 5200.08v3_DAFMAN 31-101v3), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

c. All contractor employees, to include subcontractor employees, requiring access to US Government installations, facilities and controlled access areas shall complete AT Level I training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. AT Level I may be accomplished by a Level I qualified instructor; completing the Force Protection computer-based training (CBT) course on Joint Knowledge Online (JKO) at https://jkodirect.jten.mil/Atlas2/page/login/Login.jsf. For those without a CAC, select "Non-CAC" user on the JKO site. Tracking for each contractor or subcontractor employee is the responsibility of the COR or unit AT Representative.

d. Requirement for OPSEC Training. In accordance with AFI 10-701, Operations Security, OPSEC PMs/SMO/SMNCOs/Coordinators will provide OPSEC training or training materials to contract employees within 30 days of employees’ initial assignment to the contract and prior to having access to any critical information (CI) and annually thereafter.

General organizational orientations may need to be supplemented by duty-related orientations in the work center targeted toward specific critical information and vulnerabilities associated with the work. Initial training (OPSE 1301 - OPSEC Fundamentals) located on the Defense Counterintelligence and Security Agency website:

https://securityawareness.usalearning.gov/opsec/index.htm and the OPSEC Annual training- DAF-Operations Security Awareness Training located on My Learning https://lms-jets.cce.af.mil/moodle/course/view.php?id=11654#section-1.

e. The Contractor shall provide all personnel and necessary equipment to establish an adequate and safe work zone. OSHA is applicable at the site and inspectors appear unexpectedly.

f. Contractor is responsible for site cleanliness and shall remove any waste or debris after the work is complete. All materials shall be secured to prevent loose objects from blowing and hindering flying operations in any manner.

g. The Contractor shall recycle to the greatest extent possible and turn in weigh slips to 109 Environmental Management Office for construction debris.

h. The Contractor shall bring any unforeseen project conditions to the attention of the COR immediately. Unexpected or differing site conditions, which may alter the scope of work, shall be approved by the contracting officer (KO) prior to such work being performed.

i. The Contractor shall notify the COR prior to delivery of any material or equipment to the site. The contractor shall ensure someone is available to receive delivered materials and able to store them safely in an area to be coordinated with the government project manager. Any materials delivered without prior coordination and without having someone to take receipt, shall not be accepted and turned away.

j. Contractor hours are 0700-1530 Monday thru Friday, excluding Government holidays.

No work shall be performed on holidays.

1.2. PROPOSED PROJECT SCHEDULE

The Project shall begin within 14 days after the Notice to Proceed is issued. The start date may be changed with approval of Contracting Officer. The project shall be completed within 24 hours of the actual work start date.