S02_Attachment-1_SOW_Houston_New Irrigation Well_789CM3920-16-J5.pdf

STATEMENT OF WORK

NEW IRRIGATION WELL

HOUSTON NATIONAL CEMETERY

10410 Veterans Memorial Dr., Houston, TX 77038

A. The Contractor: Shall furnish all Design-Build services, labor, material, tools, equipment, and supervision necessary to construct a new irrigation water well, install existing salvaged pump and motor equipment, install new filter and pressure maintenance equipment, and connect to the existing irrigation system main lines at Houston National Cemetery in accordance with drawings, specifications, and per applicable standards and requirements.

1. Provide all professional service to prepare the design development and construction documents to install a new irrigation water well, line-shaft driven vertical turbine pump

(VTP), variable-frequency drive (VFD) compatible well pump motor, VFD pump controls, piping, valves, fittings, meters, and all necessary components to complete the installation of the well and connect it to the existing irrigation system. The Design-Build

Contractor shall completely prepare site for construction operations, furnish labor and materials and perform work to install the new irrigation well and connect the well to the existing irrigation system. Work also includes but is not limited to: 50% concept review, 100% design review, surveying, demolition, and removal of existing irrigation system piping/components, alterations, earth work, grading, landscape, utilities, electrical, mechanical, and irrigation system controls.

B. Former System Description and Background:

1. Houston National Cemetery has two existing water wells used solely for turf irrigation.

Wells #1 and 2 are permitted through the Harris-Galveston Subsidence District (HGSD) under permit number 190175. The Water Well Permit states that the wells are authorized to withdraw a combined volume of up to 120 million gallons (MG) annually. The current cemetery currently uses a total seasonal irrigation volume of about 61.5 MG and a

854,000 gallons per day during peak season.

2. The original 24-inch irrigation well (State of Texas well number 65-05-508, HGSD well number 4284) was drilled in about 1964 to a depth of approximately 702 feet, with 14-inch well casing with alternating screened and blank sections. See Attachment #3 for the original well log (obtained from the Texas Water Development Board, TWDB).

3. At some point before 1996 the well was deepened to a total depth of 1,300 (based on

HGSD records). An 8-inch liner was installed from 562 feet to well depth. At that time the pump was tested at 975 gpm with a draw-down water level at approximately 61 feet and specific capacity of approximately 16 gpm/ft. The well had a designed standard operating capacity of 850 gallons per minute (gpm) at 710 feet of total dynamic head

(TDH). The original pump setting depth was 480 feet. See Attachment #4 for the pumping draw-down/specific capacity test, well schematic, and screened liner diagram.

4. The vertical turbine shaft-line pump was replaced in 2019 and immediately removed after pumping sand upon initial start-up. A video survey of the well was completed after this incident, which 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.

5. Electrical service to the pump is 3-phase 120/240V overhead power provided by

CenterPoint Electric. The electrical distribution panel is located in a CMU control building along with the pump variable frequency drive (VFD) and irrigation communication equipment (to be utilized for this project).

6. A project was initiated in 2020 to reline the 8-inch liner and replace the vertical turbine pump and motor with a smaller submersible pump with about half of the flow capacity to fill the storm water retention pond (water sources for East cemetery). The existing pump and motor will be salvaged and incorporated into this project.

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

General Requirements:

1. Provide all labor, materials, tools and equipment, and design-build services necessary for design and construction of the project described below and other specific tasks as further defined by this SOW. Both design and construction services are parts of this project.

Work includes but is not limited to: Professional services (geotechnical, civil, structural, mechanical, electrical, plumbing, and architectural), general demolition and construction, mechanical and electrical work, control and communications, utility systems and necessary removal of existing structures.

2. The Contractor shall provide water well drilling services. The on-site driller shall be licensed by the State of Texas as a well driller. All work will conform to applicable Texas state and local regulations regarding well drilling and installation. The Contractor shall acquire all required state or local licenses and permits to perform the work before any field operations begin.

3. Site Utilities: The Contractor shall be responsible for providing any needed utility service such as electrical and water service. Electrical service and potable water are not available at the drilling site.

4. The Contractor shall field verify the location of all existing utilities and shall be responsible for having the site checked for any underground utilities by the appropriate entity.

New Water Well

1. The Contractor shall file a New Well Registration Application with the HGSD prior to the well being drilled. No other permit is required with either the Texas Commission of

Environmental Quality (TCEQ) or with the Texas Water Development Board (TWDB).

The new well shall be permitted in aggregate with the existing wells onsite under existing

Well Permit number 190175. Reference the existing well numbers on the new well application.

2. Construct a fully-equipped irrigation (non-potable) water well. The well, discharge head, and distribution shall be constructed similarly to the existing well in accordance with the latest version of the State of Texas Department of Water Resources, Statutes and Rules

Governing Minimum Well Construction Standards and the Licenses of Well Drillers.

3. The Contractor shall determine the best location based on actual site conditions and with the approval of the COR. The contractor shall submit the design for approval before construction can begin. The new well shall be located outside the existing’s zone of influence. A suggested location is shown diagrammatically on the contract drawings, but the Contractor shall select the optimal spot within the hatched area in order to site the equipment and connect to the main distribution line. A survey of the Geologic and

Hydrogeologic Settings was completed in 2019 as part of Houston National Cemetery’s expansion plans and will be made available. This study provides information on the region’s aquifers likely to be the most favorable drilling targets for this well (i.e. the

Chicot and Evangeline). Furnish the services of an experienced Hydrogeologist who is a

Registered Professional Geologist in the State of Texas.

4. Design Pilot/Test Borehole: The borehole diameter shall be a minimum of 6”. The borehole shall be drilled to a maximum depth of 1,300 feet. The location of the pilot/test borehole shall be a minimum distance of 50 feet from the existing Well #2, but within the existing legal easement. Perform Geophysical Electric Logging (E-log) of Pilot/Test

Borehole. Perform Water Quality Testing at a minimum for pH, hardness, corrosivity and

Total Dissolved Solids (TDS). Plumbness and alignment shall follow AWWA A100-15.

5. Design Production Well: The design shall be based on the following criteria and from the information obtained from the pilot/test borehole. The Contractor shall submit the design for approval before construction can begin.

a. The Contractor shall expect to drill a minimum 22-inch diameter well bore hole.

Depth shall be up to 1,300 feet; however, the Contractor’s onsite Hydrogeologist shall advise the Contracting Officer promptly if drilling needs to continue but only up to the maximum depth and only as approved by the Contracting Officer.

b. The well casing diameter shall be either a minimum of 12 inches or the minimum diameter needed to reach the potential maximum yield rate of 900 gallons per minute (gpm) whichever is greater.

c. Confirm water producing zones and select screen intake area and louver size to provide the design maximum yield rate while limiting entrance velocity to 0.1 feet/sec.

d. Casing thickness shall be as required by the depth and diameter of the casing as per AWWA 100 and the Texas Groundwater Conservation District (GCD) rules.

e. Casing shall be either Stainless Steel or High Strength Low Alloy (HSLA) steel.

Well screen shall be louver screens.

f. Development and use of water collection pits or mud pits needed for the project shall be included in the design.

6. Construct/Drill Production Well.

a. Drill Production and log the Production Well.

b. Gravel pack, develop, seal and perform a 3 phase Step-drawdown Pump Test on the Production Well. The gravel pack shall be as supplied by SRI Supreme or approved equal.

c. Plumbness and alignment shall follow AWWA A100-15. Perform caliper log to confirm.

d. Drill cuttings shall be hauled off site to an approved disposal site.

e. The Contractor shall file any required permits, for example for discharges of water associated with drilling of new water wells and/or discharges from remediation and disinfection activities, well pump testing, aquifer drawdown testing, and other discharges of a temporary nature.

f. Develop the well using such methods as surging and airlifting. The Contractor shall use best management practices such as silt fencing and wattles to minimize siltation into nearby surface waters.

7. After the well is drilled and developed, it shall be test pumped to determine specific capacity, ultimate capacity, and complete chemical water quality analysis. Perform all required pumping tests with a temporary pump. Based on field data obtained, the well preliminary design will be reviewed, and adequacy of the existing pump and motor equipment verified. If the existing equipment is not adequate for reuse based on the design, the Change Order process would be initiated.

8. Existing Pumping Equipment: The Contractor shall plan to transport and install existing equipment currently stored at the Cemetery Maintenance Yard consisting of the following:

a. Pump: Goulds Model 12CHC, 9-stage, vertical turbine, hollow line-shaft, oil lubricated

b. Motor: U.S. Motors (Nidec Motor Corp.) Model DN12, Catalog #

H0200V2SLH, 200 HP, 460V/3-phase, 60 Hz, 1780 RPM, inverter duty (variable speed)

c. The Contractor shall provide the necessary sections of 20-foot threaded 10-inch

Schedule 40 steel column pipe and couplings to set the pump at the design depth.

d. The Contractor shall provide and install the necessary length of 2-1/2” carbon steel tube and 1-11/16” stainless steel lineshaft assembly (with enclosed bronze bearings), and tube-centering “spiders.”

e. Connect, install, and set equipment including but not limited to: Mechanical and electrical connection of the pumps, motors, and tube and shaft assembly.

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

9. Connection to the Existing Irrigation System: The Contractor shall plumb the pump into the existing irrigation distribution piping system.

a. Design and install the wellhead plumbing.

b. Include the necessary modifications to the existing piping system, and appurtenances and fittings (flanged ductile iron for aboveground, unless otherwise noted) to the new system to allow the new well to connect into the existing piping.

c. Install new 12-inch saddle and data industrial flow meter; install new 1” electrical conduit from flow meter to pump control building.

10. Pressure Maintenance: The Contractor shall select and design an appropriate pressure maintenance system to allow for low flow conditions such as hand watering or operation of a single irrigation station. There is an existing 80-gallon pressure tank at Well 1 for this purpose. The Contractor shall evaluate if this is an acceptable solution for the new well.

11. Automatic Screen Filter: The Contractor shall install a skid-mounted V-Series automatic self-cleaning screen filter Model V-1500-10-200 as provided by VAF™ Filtration

Systems (by Evoqua) with filter controller provided by the filter manufacturer.

a. Install required 8-inch isolation butterfly valves for the filter’s inlet and outlet, and 10-inch isolation butterfly valve for the main bypass. Install necessary reducer fittings to connect the 10-inch filter inlet and outlet to the irrigation system 12-inch main.

b. Install 2-inch electric flush valve with stainless steel ball valve body and 24V actuator in a NEMA 6P housing. Differential pressure across the filtering screen shall be continuously monitored and the flush cycle threshold shall be adjustable.

The flush valve shall activate the automatic cleaning feature of the screen utilizing only the flush waste flow water pressure during the flush process. Pipe the filter discharge underground using 6-inch Schedule 40 PVC pipe to the water retention pond to the west (approximately 130 feet away), avoiding the underground electrical utilities.

12. Install necessary aboveground pipe supports similar to the existing with 8” thick x 24” wide reinforced concrete pipe support blocks, welded and coated steel pipe support stands, U-bolt pipe anchors, and thermo-plastic semi-rod pipe supports.

13. Pump power and controls: Design and install all electrical and controls required for operation of the new water well.

d. The pump motor electrical power shall be connected to the existing VFD and electrical system on site.

e. Coordinate with the local electrical utility company (CenterPoint Electric) to perform all necessary requirements to tie in and bring power to the site.

f. Layout, install and commission the new pump, pump controls, magnetic flow meter, and electrical service.

g. Plumb discharge into the main transmission line with blow off.

h. The existing pump control building shall be utilized for pump controls and electrical panel.

14. Testing: 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).

15. Restore site including grading and blend site into the existing contours. Clean up and demobilize from the site.

16. Additional Work: All other tasks necessary to provide a fully functioning production well meeting the operating parameters of the contract shall be considered incidental to the tasks listed above.

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). The Contractor and all Contractor employees must have taken the OSHA Certified 30/ 10-hour construction safety course and show documented proof. The Contractor shall designate a “competent person” in accordance with 29 CFR

1926. 32(f) which states, “One who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous or dangerous to employees and who has authorization to take prompt corrective measures to eliminate them”. The Contractor shall instruct each of his employees in the recognition and avoidance of unsafe conditions and the regulations applicable to this work environment to control or eliminate any hazards or other exposure to illness or injury.

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 210 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. Water Well Drilling Contractor will supervise and direct the well installation work, using its best skill and attention, and shall be solely responsible for and have control over construction means, methods, techniques, sequences, and procedures and for coordinating all portions of the work under this contract. Construction of the water well shall conform to the job proposal.

2. 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.

3. 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. Warranties:

1. Workmanship, Materials: The Contractor warrants that (i) all Work performed hereunder will be performed in accordance with the contract and in a proper workmanlike manner, free from all defects and (ii) all materials used will be new. In addition to the foregoing warranty, the Contractor will assign to the Government all warranties received by the

Contractor in connection with the Work, including, specifically, manufacturer's warranties and guarantees on appliances and equipment incorporated into the Water Well.

2. No Quantity of Water Guaranteed: The Contractor specifically does not warrant that the water well being constructed will produce water in any specific quantity, or that it will produce any water at all. All risk of failure to produce water shall be borne by the

Government and failure to produce water shall not release the Government from payment.

J. Attachments:

1. Attachment 2, Specifications:

a. Section 00 11 21, Design Build Requirements;

b. Section 33 22 10, Irrigation Water Production Wells.

2. Attachment 3, Drawings;

3. Attachment 4, Original Well Log (1964);

4. Attachment 5, Well Records (1996);

K. 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