36C78620Q0186-0001001.pdf

STATEMENT OF WORK

RELINE MAIN IRRIGATION WELL AND REPLACE PUMP

Houston National Cemetery, 10410 Veterans Memorial Dr., Houston, TX 77038

A. The Contractor: Shall furnish all labor, material, equipment, and supervision necessary to reline and refurbish the main irrigation well and replace the line-set vertical turbine pump with a submersible pump and motor at Houston National Cemetery in accordance with drawings, specifications, and per applicable standards and requirements.

B. System Description and Background:

1. The main irrigation well had a design capacity of 850 gallons per minute (gpm) at 710 feet of total dynamic head (TDH). The original pump setting depth was 480 feet. The 12-stage vertical turbine pump was replaced in 2019.

2. After installing and running the pump in 2019, it started pumping sand. The pump was immediately removed, and a well survey completed. The survey determined that the well casing was starting to irrevocably deteriorate with holes in the blank sections; very large holes at 870 and 880 feet, respectively; and probable significant damage below 911 feet because of observed fill up to that point. (The original total depth of the well was 1056 feet).

C. The Work: Shall include, but shall not be limited to the following (not necessarily in the order indicated):

1. The Contractor shall selectively disassemble and remove the original 200 HP motor, motor frame, and flanged 10x12-inch reducer fitting. Transport all removed materials to the Cemetery Maintenance Storage Building (near Veterans Memorial Hwy) and hand over possession to the COR.

2. Perform an initial video and camera survey to verify existing conditions: Verify the locations of the damaged blank and screened sections of casing down to the well bottom or infill depth (previous report provided in Attachment B); verify the static water depth.

Provide two copies of the DVD with video and pictures: one to the COR and one to the

District Engineer in Denver, CO.

3. Install 64-inch 304 stainless steel well liner comprised of pipe-based screen threaded sections with a total intake area of about 1,2331,254 square inches that will limit the entrance velocity to 0.1 feet/sec (for example, a maximum of 46 66 feet of Johnson

Screens 4-inch Pipe Based screen with a screen slot size of 10 thousandths of an inch providing an intake area of 27 19 in2/ft); assembled with solid casing threaded or welded sections (such as provided by Johnson Screens or approved equal) so that the new screened sections are aligned within zones of existing screens. Install threaded or welded

IPS solid bottom plug at the bottom. and 6”x8” neoprene K packer to seal Fill the annular space at the top of between the liner and old screen with gravel pack.

4. After installing the liner, recondition the well and aquifer using controlled shape charge blasting such as the SONAR-JET® system (slower burn rate detonating cord) to increase the capacity of the well as close to its original condition as possible.

a. SONAR-JET®: Water Well Redevelopers, Inc.; 2881 Blue Star Street;

Anaheim, CA 92806; (800) 213-5095 or (714) 632-700; Fax: (714) 632-7306;

E-Mail: sonar7003@sbcglobal.net; Website: http://www.sonar-jet.com

5.4. Perform a second video survey to verify the condition of the new well liner after rehabilitation. Verify the new static water depth. Provide two copies of the DVD with video and pictures: one to the COR and one to the District Engineer in Denver, CO.

6.5. Install new submersible pump and motor with the following performance characteristics:

a. Pump: Grundfos® 8-inch submersible, model 385S750-10, 10-stage, 4-inch discharge

b. Motor: Grundfos® 8-inch, model MMS 8000, 75 HP, 3-phase, 60

Hz, 460 Volts, Inverter Duty

c. Max Speed: 3600 RPM (3500 RPM)

d. Design Flow: 384 GPM @ 631 TDH

e. Pump Des. Eff.: 78%

f. Operating Press.: 90 psi

g. Static Water Level 361 ft (@ well development); 298 ft (most current)

h. Pumping Level: 421 ft

i. Pump Setting (top): 358 ft

j. Well Depth: 1056 ft (@ well development); 911 ft (most current)

k. Features: Stainless steel casing, sand handling design

7.6. Install 4-inch Sch. 40 black steel threaded riser/drop pipe (23 sections of threaded 21-inch long pipe) from pump to top of well head. Attach new flange plate to concrete well base in order to narrow the existing 14-inch opening and allow new drop pipe to be attached with welded flange. Install 4-inch long-sweep elbow, and flanged 4x12-inch concentric reducer fitting to attach to the existing 12-inch dresser fitting.

8.7. Install 500-feet of flat-jacketed submersible pump #2/3 (3-wire) cable with ground.

Connect to existing electric feeder conduits in existing disconnect switch pedestal panel.

9.8. Install 480 feet of new ¼-inch coated airline and water level gauge.

10.9. Connect, install, and set equipment including but not limited to:

a. Mechanical and electrical disconnection the pumps, motors, and tube and shaft assembly.

b. Hoisting/rigging for the installation of the pump, pump motor, and associated piping.

c. All labor, material, and equipment associated with testing the completed assembly and providing documented test results.

11.10. After completion of all equipment, component, and material installations, perform a full system functional test and demonstrate to the COR the full operation/functionality of the newly repaired well, irrigation pump, pump motor, and the irrigation motor/pump unit has been fully coordinated with the existing irrigation control system. Perform a pumping test in accordance with industry standards to determine actual pumping capacity (GPM), total head (ft), and pumping level (ft).

D. General Conditions:

1. Haul away & dump debris and waste to an approved disposal site.

2. Remove, cut, alter, replace, patch and repair existing work as necessary to install new work. Existing work to be altered or extended and that is found to be defective in any way, shall be reported to the COR before it is disturbed. Materials and workmanship used in restoring work shall conform in type and quality to that of original existing construction, except as otherwise shown or specified.

3. Thoroughly clean up the work area at the end of each day’s work, and at completion of the project. Leave premises clean and free of waste, scrap, used equipment, or other material intentionally or incidentally delivered to the site by Contractor or Contractor’s personnel. Haul away & dump debris and waste to an approved disposal site.

4. The Contractor shall preserve and protect all structures, equipment, and vegetation (such as trees, shrubs, and grass) on or adjacent to the work site not to be removed and do not unreasonably interfere with the work required under this contract. If any limbs or branches of trees are broken during contract performance, or by the careless operation of equipment, or by workmen, the Contractor shall trim those limbs or branches with a clean cut and paint the cut with a tree-pruning compound as directed by the Contracting

Officer.

5. The Contractor shall protect from damage all existing improvements and utilities at or near the work site and on adjacent property of a third party, the locations of which are made known to or should be known by the Contractor. The Contractor shall repair any damage to those facilities, including those that are the property of a third party, resulting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work. If the Contractor fails or refuses to repair the damage promptly, the Contracting Officer may have the necessary work performed and charge the cost to the Contractor.

6. All utilities required for the continuous operation of all existing facilities shall be maintained in service at all times except when disruptions are needed. The Contractor shall inform the COR and the Contracting Officer (CO) in writing for such disruptions and obtain approval from the CO in writing at least 2 weeks prior to such need. When option exists, implement options to minimize interruption of services to the facilities.

7. The Contractor shall coordinate with the COR for parking, material storage, temporary portable restroom facilities, and any other needs for the work. Public access to the

National Cemetery shall not be impaired.

8. The Contractor shall assume sole responsibility for safety of all persons on or about the construction site, in accordance with applicable laws and codes. Guard all materials in accordance with the safety provisions according to OSHA and Associated General

Contractors of America (AGC).

E. Standards of Employee Conduct:

1. The National Cemetery Administration honors veterans with a final resting place and lasting memorials that commemorate their service to our Nation. National Cemeteries are national shrines. The standards of work, appearance, and procedures performed by the contractor at this cemetery shall reflect this nation’s concern for those interred there. Due to the sensitive mission of the cemetery, contractor personnel must exercise and exhibit absolute decorum, composure, and stability at all times.

2. Contractor personnel shall be required to adhere to the following standards of dress and conduct, as briefly mentioned here, while performing work in the National Cemetery.

These standards and regulations are enforceable under Title 38, U.S.C., Part I, Chapter 9, Section 5901.

3. Clothing shall be presentable and suitable to the work while maintaining proper appearance and decorum indicative for a National Shrine. Uniform shirts and hats are preferred. Clothing shall be clean and cleanliness and personal hygiene are imperative. T-shirts and/or tank tops as outer garments are prohibited. Protective/safety clothing and shoes shall meet or exceed OSHA and state requirements.

4. Behavior and language must be appropriate, reverent, and respectful at all times.

5. Eating and drinking (except water) is prohibited in the work areas and within sight of a committal shelter during a service.

6. Use of intoxicating beverages, any tobacco products, and illegal drugs on the Cemetery premises is strictly prohibited.

7. Contractor personnel shall not lean, sit, or stand on or against headstones or monuments.

No tools, equipment or other items will be placed or leaned on headstones or monuments.

8. The Contractor shall be responsible for maintaining satisfactory standards of personnel conduct and work performance and shall administer disciplinary action as required. The

Contractor is expected to remove any employees from the Cemetery for cause, to include, but not limited to, safety violations, other misconduct in performance of duty under these specifications and/or conduct contrary to the best interests of the Government. If the

Contractor fails to act in this regard, or the reason for a removal is immediately required to protect the interests of the Government, the COR may direct the removal of an employee from the premises. Contractor objections to any such action will be referred to the Contacting Officer (CO) for final resolution; however, the Contractor will first immediately comply with COR direction pending any CO final resolution at a later time or date. The Contractor will not be due any type of compensation for their costs incurred as a result of an employee being removed for cause; unless the removal is directed by the

COR and is later found invalid and/or unreasonable by the Contracting Officer.

F. Time of Completion: The project shall be completed within 60 calendar days after contract

Notice to Proceed. Work outside of the Cemetery’s normal operating hours of 7:00 am to

4:30 pm, Monday through Friday, excluding observed Federal Holidays, will not be permitted without prior approval of the COR. The Contractor shall not commence performance of work until the Contracting Officer has conducted a preconstruction meeting or has advised the Contractor that a preconstruction meeting is not required.

G. Code Compliance: All work shall be performed in accordance with the specifications. It shall be the Contractor's responsibility to comply with all the applicable local, state and federal laws and regulations. The Contractor shall apply and obtain all applicable permits to comply with local, State and Federal regulations and requirements. The Contractor shall remove and dispose of all waste materials and construction debris and comply with all applicable local, State and Federal regulations and requirements. All waste materials and debris specified shall be removed from the Cemetery grounds by the Contractor at its own expenses, including all applicable permits and fees.

H. Contractor Quality Control:

1. Contractor Supervisor/Superintendent: A competent and experienced English-speaking

Contractor Supervisor/Superintendent shall be provided by the Contractor whenever work is being performed - other than trash and debris pick-up.

2. The Contractor Supervisor shall review and approve submittals, ensure all specifications are being met, inspect the quality of work performed, ensure contract work does not conflict with ceremonies and funerals, ensure employees are is adequately supervised and proper conduct maintained, and certify the completed work for payment and other purposes.

I. Attachments:

1. Attachment 1, Pictures;

2. Attachment 2, 2019 Well Condition Survey Observations and Recommendations;

3. Attachment 3, Well Screen Location and Damage Diagram.

J. Project completion: The project site shall be protected and/or restored to a condition equal to that existing prior to the commencement of work. Upon completion of contract, deliver work complete and undamaged. Existing work disturbed or removed as a result of performing required new work, shall be patched, repaired, reinstalled, or replaced with new work, and refinished and left in as good condition as existed before commencing work.

END OF STATEMENT OF WORK

ATTACHMENT 1

PICTURES

Figure 1: Main well set-up and disconnect

Figure 2: Main well pump motor, 10x12 reducer, and 12” dresser

ATTACHMENT 2

WELL CONDITION SURVEY RESULTS

Casing Size: 14”

Casing Depth: 549’

Water Level: 298’

Blank Liner Size: 8-5/8” (based off previous surveys and well reports)

Blank Liner depths: 549’ – 602’, 668’ – 686’, 704’ – 730’, 758’ – 792’, 828’ – 848’, 880’– 888’, 926’ – 990’, 998’ – 1020’

Screen Size: 8” Pipe Base (based off previous surveys and well reports)

Screen Depths: 602’ – 668’, 686’ – 704’, 730’ – 758’, 792’ – 828’, 848’ – 880’, 888’ – 926’, 990’ – 998’, 1020’ – 1056’

Top of Fill: 911.5’ total depth viewed (total fill is 145’)

Problems Observed

- All screens about 90% plugged.

- Sections of liner have holes in the following locations:

o 645’, 655’, 695’, 705’, 759’, 766’, 768’, 787’, 807’,837’, 848’, 870’ (very large hole), 880’ (very large hole)

ATTACHMENT 3

WELL SCREEN LOCATION AND DAMAGE DIAGRAM