A14_Attachment_1_Statement_of_Work.pdf

FXSB 15‐4703

DEMOLISH 3 HYDRANT PITS

3 LOW POINT DRAINS & 3 HIGH POINT VENTS

Statement of Work

Intent of this project is to demolish three fuel hydrant pits that are no longer in service and to demolish 3 low point drains and 3 high point vents. The 6 LPD/HPV are located on the airfield.

Demolish/Remove three fuel hydrant pits that are no longer in service. Hydrant Pits are located on hardstands 7, 8 (PH 2 Loop, Facility# 76406) and 9 (PH 3 Loop, Facility# 76407).

1. Drain and recover JP‐8 from the hydrant loops. Government will drain JP‐8 from the hydrant loops (14”. Contractor shall drain residual JP‐8 during pipe cutting.

2. Excavate pipe and remove pipe coatings.

3. Cut 14"x8" tees out of the hydrant loop and weld in a similar section of pipe. Follow proper welding procedure to prevent slag issues. Apply pipe coating to new pipe section and holiday test coating before backfill.

4. All new underground pipes shall be coated with “Yellow Jacket” polyurethane or equal quality polyurethane for corrosion control. Petrolatum tape and paste used as coating replacement on existing and new pipe welds and fittings. Underground pipe and fittings covered with rock shield.

5. Cap 6" lateral that runs from loop to pit on both ends and abandon in place (recover residual fuels and purge).

6. Demo concrete and/or asphalt at pit and loop tie in locations.

7. Excavate and remove fuel pits.

8. Backfill and compact hydrant pit excavations. Place 5” reinforced concrete with wire mesh at old pits locations.

9. Concrete and asphalt shall be hauled to and disposed of at an approved JBER disposal site.

10. Excavate pits and all components and dispose of.

11. Salvage 3 pit lids and deliver to 773 WFSM‐Fuels shop.

12. Contractor shall inert loop piping with Argon during stainless steel welding.

13. Level and grade areas outside of concrete and asphalt with top soil or gravel as existing.

14. 100% X‐ray shall be performed on all welds. NDT performed on all buried welds per ASME B31.3 code, including radiographic and magnetic particle examination. Submit results for review.

15. A Hydrostatic/Pressure test must be conducted after completion of welds on each of the 2 loops. Pressure test hydrant loop and laterals with existing pumps to 1.5 times normal operating pressure for 2 hours.

16. Contractor shall assist POL and LFM with returning hydrant loops system to service.

FXSB 15-4703 Demo Hydrant Pits Attachment 1 – Statement of Work (13 Jan 16)

Demolish/Remove six Low Point Drains and High Point Vents from two transfer pipelines and return to bulk line at the West Ramp area.

1. Drain and recover JP‐8 from the hydrant system. Government will drain JP‐8 from the West

Ramp hydrant loop (14" ss hydrant loop lines and 8" ss truck return to bulk line). Contractor shall drain residual JP‐8 during pipe cutting.

2. Cut and remove 3 fuel pipeline low points (2" lines) and 3 high points (1 1/2" lines). Remove lateral lines back to the main pipelines. 2 low point lateral lines attached to hydrant loop. 1 low point lateral line attached to return to bulk line. 2 high point lateral lines attached to hydrant loop. 1 high point lateral line attached to return to bulk line.

3. Excavate pipe and remove pipe coatings. Apply pipe coating to new pipe section and holiday test coating before backfill.

4. All new underground pipes shall be coated with “Yellow Jacket” polyurethane or equal quality polyurethane for corrosion control. Petrolatum tape and paste used as coating replacement on existing and new pipe welds and fittings. Underground pipe and fittings covered with rock shield.

5. Cut tees out of transfer piping pipelines and weld in a similar section of pipe. Follow proper welding procedure to prevent slag issues.

6. Contractor shall inert transfer piping during welding.

7. Backfill and compact excavations to airfield specs.

8. Salvage 6 pit lids and deliver to 773 WFSM‐Fuels shop. Dispose of all remaining items.

9. 100% X‐ray shall be performed on all welds. NDT performed on all buried welds per ASME B31.3 code, including radiographic and magnetic particle examination. Submit results for review.

10. A hydrostatic/pressure test must be conducted after completion of welding. Pressure test hydrant loop and return to bulk and laterals with existing pumps to 1.5 times normal operating pressure for 2 hours.

11. Contractor shall assist POL and LFM with returning transfer piping system to service.

FXSB 15-4703 Demo Hydrant Pits

General Notes

A. Construction shall start on 1 May 2016 with the demo of the three hydrant pits.

B. Contractor shall coordinate all work with the airfield manager and shall anticipate delays with airfield access due to military exercises and airfield operation. Contractor shall work closely with the users so as to not disrupt airfield operation. Work may last from 1 May to 30 Sept due to airfield operation and exercises.

C. A JBER Work Clearance Permit (Dig permit) is required for all work areas.

D. New Stainless Steel pipe sections shall meet ASTM A358, Grade 304L, Class1 or Class 3 with supplementary requirements of S1, S2 and S3, or ASTM A312 Type 304L, seamless (only). For a 14" pipe nominal wall thickness is 0.312" and for 8" wall thickness is 0.250.

E. Underground decommissioned POL pipelines exist in the area and are approximately 2‐6 feet deep.

Caution should be taken when crossing decommissioned lines during excavation as they may have residual fuel in them. Extreme caution shall be taken when excavating around an active POL line.

Contractor shall be aware of existing emergency stop cables that run along the POL pipeline and the existence of impressed Cathodic protection system leads; which will all be identified during the dig permit process.

F. Airfield access and airfield driving training is required. Coordinate with airfield manager. Info will be provided with the Notice to Proceed after award. Work will have to be scheduled with airfield manager and POL as some of it will impact runway/aircraft fueling operations (West Ramp 06 Overrun Area).

G. The three loops must be shut down at three separate approved scheduled times (HS 7 & 8, HS 9, and the 6 low/high point drains).

H. Construction shall not isolate areas and prevent users from accessing their facilities.

I. A Storm Water Pollution Prevention Plan (SWPPP) is not required for this project; however, best management practice must be followed to prevent sediments and other material from falling into the surrounding storm system inlets.

J. All removed asphalt in areas of excavation shall be replaced with new. New pavement cross section shall be as follows: 3” AC, 6” D‐1 Base course in all areas where trench cuts into existing pavement.

K. Contractor shall use the services of a qualified POL Engineering firm to review and recommend weld procedures, review weld results, review pressure tests set up, and review pressure test reports.

L. Contractor shall develop a comprehensive quality assurance and Non‐Destructive Examination (NDE) procedures document which demonstrates a thorough knowledge of the weld examination requirements and sufficient planning to coordinate examination with the work. NDE procedures shall include weather conditions in which welding will be permitted and inspection tools such as gauges, equipment and penetrant materials. Radiographic procedures shall include film and weld identification and piping diagrams denoting radiograph locations.

M. Attached exhibit drawings gives an ides of the existing hydrant pits, piping and LPDs & HPVs.

FXSB 15-4703 Demo Hydrant Pits