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FBO DAILY - FEDBIZOPPS ISSUE OF FEBRUARY 23, 2019 FBO #6301
SOURCES SOUGHT

Y -- BOIS BRUEL RELIEF WELLS

Notice Date

2/21/2019
 

Notice Type

Synopsis
 

NAICS

237990 — Other Heavy and Civil Engineering Construction
 

Contracting Office

1222 Spruce Street, Room 4.207 St. Louis MO 63103-2833
 

ZIP Code

63103-2833
 

Solicitation Number

W912P919R0026A
 

Response Due

2/28/2019
 

Point of Contact

KRISTINA J BAKER, CONTRACT SPECIALIST, Phone 3143318506
 

E-Mail Address

KRISTINA.J.BAKER@USACE.ARMY.MIL
 

Small Business Set-Aside

N/A
 

Description

Description: This is a Sources Sought Notice. This Sources Sought neither constitutes a Request for Proposal, nor does it restrict the Government to an ultimate acquisition approach. This Sources Sought should not be construed as a commitment by the Government for any purpose. Requests for a solicitation will not receive a response. This Sources Sought Notice is in support of a market survey being conducted by the St. Louis District, Corps of Engineers to identify interested Contractors within the District area for the Scope of Work listed below. The following are general capabilities required to perform the Scope of Work according to USACE standards. The Contractor must be capable to perform the Scope of Work listed below. Work Statement: Project Description The Bois Brule Levee District plans to install 10 to 30 D-type relief wells to mitigate uncontrolled underseepage along the levee. The wells range in depth from 70 feet to 95 feet below ground surface. Screen slot sizes vary between 30 and 40 slot. Soil conditions may encounter cobble zones and other obstructions in achieving these depths. Contractor Reporting and Quality Control Responsibilities Prospective relief well contractors shall have at minimum 5-years' experience in drilling and installing relief wells, well development, and pumping test and be licensed/permitted to work in the state of Missouri. Contractor shall be familiar with the subsurface conditions and challenges of drilling relief wells in the Mississippi River alluvium as well as the equipment needed to advance the wells to the specified depth. The Contractor shall have the following equipment as specified in the sections below on hand to adequate install the relief well in an efficient manner, develop, and conduct a well pumping test. Equipment will include, but not be limited to those listed in this document. Contractor-supplied shop drawings shall include proposed methods for drilling, coupling well screen and riser sections, installing well screen and riser, backfilling, developing, and performing relief well pumping tests. The Contractor's quality control organization shall be responsible to observe and control, for compliance with the technical specifications, all relief well construction and repair including but not limited to the following: maintain Government survey layout, materials, drilling method, joints, bottom plug, materials storage, well pipe assembly and installation, backfilling, cleaning, development, pumps, pumping test, earthwork, discharge channels and safety. Completed relief wells shall be protected against damage and contamination. When quality control monitoring or testing detects non-conformance with specifications, corrective action shall be directed. The details of the irregularities and the actions directed to correct them shall be reported immediately to the representative of the Contracting Officer and included in the daily Quality Control report. Corrective action shall include steps taken to assure against recurrence of the irregularity. Reports shall include, for each new relief well, ENG form 1836 "Drilling Log", WES Form 797 "Relief Well Installation Report", WES Form 796 "Relief Well Pumping Test Report", and ENG Form 2087 "Gradation Curves" for filter pack samples. Well Drilling Specialist The Contractor shall submit to the Contracting Officer, for review and approval within 10 days of Notice to Proceed, summaries of qualifications and references for the Well Drilling Specialist(s). Well drilling shall not proceed until the well drilling specialist has been approved by the Government. The Contractor shall designate a well drilling specialist for each work shift. The well drilling specialist shall have a minimum of five years' experience in the water well industry and relief well specific installation, and shall be familiar with the subsurface conditions and operation of all equipment and machinery required to install high-capacity water wells in Mississippi River alluvium. Environmental Protection In order to properly construct relief wells as specified, the Contractor shall have all material, equipment, and experience personnel mobilized; and all equipment necessary for the job operating in a manner adequate to achieve properly constructed relief wells. Loss of a hole or well because of lack of material, inadequate or faulty equipment, or careless operating procedures will be considered cause for an abandoned well due to fault of the Contractor. Well Screen/Riser Pipe Well riser and screen shall be stainless steel of the requested schedule, as provided by the Contracting Officer and a continuous screen slot, wire-wound well screen that is approximately equally around the circumference of the pipe. Screen openings shall be uniform in size and pattern, and fabricated by circumferentially wrapping a triangularly shaped wire around a circular array of internal rods. The wire configuration shall produce inlet slots with sharp outer edges, widening inwardly to minimize clogging. Each juncture between the horizontal wire and the vertical rods shall be fusion welded under water by the electrical resistance method. End fittings shall be welded to the screen body. All pipes, rods, bars, wire, and fittings shall be stainless steel conforming to ASTM A 312, Grade TP 304. Well riser pipe and screen are typically in diameters of 10 inches or 12 inches. Typical well screens are 30-slot or 40-slot. The bottom plug for each well screen shall be made of the same material and at least the same minimum thickness as the screen. Plugs shall be the same diameter as the outside of the screen and fastened to the bottom screen portion in an approved manner. Reverse Circulation Drilling and Other Methods Reverse circulation drilling is the appropriate method for drilling and installing the relief wells. Using this technique, water is introduced to the hole, as augers typically drill into the subsurface. The cuttings are pulled through the drill stem and pumped out of the hole. Rigs with the means to supply the reverse circulation drilling technique shall be utilized. The diameter of the hole shall be such that will permit the placement of the thickness of filter pack. The use of a bentonite drilling fluid is prohibited. Temporary casing of iron and steel shall be used to support sides of hole during drilling activities, screen, riser pipe, and filter pack placement and to support the sides of the open annulus portion of the hole during development of the well and the test pumping. If the walls of the hole above the top of the filter pack require support during development operations, a temporary casing shall be placed so as to extend from the ground surface to at least one foot below the top of the filter material. The Contractor shall be responsible for establishing and maintaining a minimum 7-foot head differential. Casing diameter must have a diameter large enough to provide minimum filter thickness and have sufficient thickness to retain its shape and maintain true section throughout its depth. The temporary casing shall be securely anchored to the drill rig or ground surface at all times until removed. The temporary casing shall be such as to permit its removal without interfering with the filter or riser pipe. Methods of installation, which will create a cavity outside the temporary casing, will not be permitted. To assist in the advancement of the hole and move passed obstructions, the following may be used in conjunction with or supplemental (as needed) to reverse circulation, and is not limited to; soil augers, bucket drills, and modified bucket augers with diameters from 26" for a 10" diameter well pipe to a proportionally appropriate diameter to include the 8" filter pack surrounding the pipe. Other drill types may be used if the bit will maintain the section and competency of the well sides. Contractor shall be able to demonstrate that they have the ability to locate and have used the equipment to drill the well to completion. Obstructions Encountered The Contractor may encounter the presence of cobbles/boulders and/or in-situ wood. Contractor shall have multiple methods available to advance the hole passed all obstructions and achieve the depths required for the well. The presence of cobbles/boulders or in-situ wood, which may be encountered during drilling, shall not be considered as obstructions or sufficient reason for abandonment of a well. Where obstructions are encountered, drilling shall be continued using all means and methods, until it is demonstrated to the USACE Contracting Officer that further efforts to advance the drill hole are impracticable. If rendered impracticable, the Contracting Officer may adjust the depth to conform to that of the obstruction or may direct the Contractor to abandon the well and construct another at an adjacent site. At no time will circulation continue with no advancement, for longer than 30 minutes. Pipe and Screen Installation The assembled riser pipe and screen shall be placed in the hole in such manner as to avoid jarring impacts and to ensure that the assembly is centered and not damaged or disconnected. After the screen and riser pipe have been placed, a filter pack shall be constructed around the screen section. Verticality Each well shall be installed and maintained straight and plumb during placement of filter and development. Immediately before placing the filter pack and with the top of the well fastened securely in a vertical and horizontal position, the Contracting Officer may elect to perform verticality tests to check alignment and plumbness. This test, if performed, will be performed using approved methods to verify the verticality of the well. Filter Pack Placement The filter pack shall be placed in a tremie hopper so constructed and balanced that filter material will feed freely and equally to two tremie pipes located at 180 degrees on each side of the screen. The Contractor shall be equipped to quickly and efficiently add filter material to the hopper in any position from the ground surface to the maximum height of the hopper. The filter pack material shall be placed using clean water introduced at bottom of hopper and without significant segregation. Tremie pipe shall consist of two rigid 4-inch inside diameter tremies with no obstructions. The tremie pipes shall consist of equal 5 foot lengths of standard 4-inch pipe with 1/16 inch wide equally spaced slotted openings. A tremie guide with consist of shall consist of a metal ring or rings of sufficient diameter to slip freely over riser pipe and screen with 4 inch collars welded to the guide at 180 degrees to securely hold the tremie pipe in place. The filter pack shall have a thickness of 8 inches between the outside of the well screen and the outside of the filter pack. The filter pack shall be placed in increments not to exceed 2 feet. The tremie and temporary casing shall be raised in small increments approximately equal to the increments of the filter pack placed, except that at no time prior to the completion of placement of the filter pack shall the bottom of the casing be less than 1 foot below the top of the filter pack in the hole. The Contractor shall provide a means of measuring the filter pack depth in the hole. Well Development and Equipment The well development shall be accomplished by high-velocity, horizontal jetting and simultaneous airlift pumping. The outside diameter of the jetting tool shall be 1/2 to 1 inch less than the inside diameter of the screen. The exit velocity of the jetting fluid shall be between 150 and 300 fps and have a pressure at the nozzle of approximately 200 psi. A water level indicator, bubbler tube, or other approved means shall be used for accurately determining the water level in the well under all conditions. Sizing of the eductor pipe, airline, and air compressor shall be adequate to efficiently pump the well at a rate from 10 to 20 percent more than the volume of water introduced through the jetting tool. If at any time during the development process it becomes apparent that the well may be damaged, operations shall be immediately stopped. If after initial development and 6 hours of additional development, a well continues to produce excess sand, the Contracting Officer may order the Contractor to abandon the well. Development Records The Contractor shall obtain and furnish to the representative of the Contracting Officer for record purposes the elevation of the water in each well before and after the development pumping, the flow in gpm at the completion of the pumping and the time of observation. The water surface elevation shall be obtained immediately before starting the surge pump and the water surface elevation and flow shall be obtained just before stopping the pump upon completion of the development pumping. This data shall be recorded on WES Form 797. NOTE: THIS NOTICE WAS NOT POSTED TO FEDBIZOPPS ON THE DATE INDICATED IN THE NOTICE ITSELF (21-FEB-2019); HOWEVER, IT DID APPEAR IN THE FEDBIZOPPS FTP FEED ON THIS DATE. PLEASE CONTACT 877-472-3779 or fbo.support@gsa.gov REGARDING THIS ISSUE.
 

Web Link

Link To Document
(https://www.fbo.gov/notices/3c543df46d749cfe01dab3c84f7074a5)
 

Place of Performance

Address: BOIS BRULE, IL

Country: US
 

Record

SN05228297-F 20190223/190221230021 (fbodaily.com)
 

Source

FedBizOpps Link to This Notice
(may not be valid after Archive Date)

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