Contract No. AMD 17(1416)107.1
Hollywood AMDTP – Sludge Disposal Borehole I-3
SUBSURFACE ROTARY DRILLING
SPECIFICATIONS
I. SCOPE OF WORK
The Department of Environmental Protection, Bureau of Abandoned Mine Reclamation requires
a contractor to conduct a subsurface conventional air-rotary drilling project within the delineated
Project area as indicated on the Attachment 5 to this agreement entitled, - “Plan.” The work to be
performed under this Contract will require non-percussion or percussion air-rotary drilling at a
series of hole locations within the Work Area. The Contractor shall furnish all labor, technical
assistance, equipment, tools and material necessary to perform the Contract tasks.
The items of work to be performed at the Contract are:
1 Work site mobilization and demobilization
1 Each
2A Drilling Pilot Boreholes (min 4.5 inch)
135 L.F.
2B Drilling Boreholes to Accommodate
15 L. F.
Eighteen-Inch (18”) Nominal Sch 40 Steel Overburden
Casing Pipe
2C Drilling Boreholes to Accommodate
Fourteen-Inch (14”) Sch 40 PVC Overburden
Casing Pipe
30 L. F.
2D Drilling Boreholes to Accommodate
Eight-inch (8”) SDR17 Certa-Lok, or equivalent,
Casing Pipe
135 L. F.
3A Eighteen-Inch (18”) Nominal Sch 40 Steel Overburden 15 L.F
Borehole Casing Pipe.
3B Fourteen-Inch (14”) Sch 40 PVC Casing Pipe
Including Tremie-Grouting
30 L.F
3C Eight-inch (8”) SDR17 Certa-Lok, or equivalent,
Casing Pipe Including Tremie-Grouting
135 L.F
4 Eight-inch (8”) SDR17 PVC Sealing Cap
1 Each
5 Pilot Borehole Abandonment
1 Each
6 Stand-by Time
1 Hour
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Contract No. AMD 17(1416)107.1
Hollywood AMDTP – Sludge Disposal Borehole I-3
When requested by the Department Representative, the Contractor shall provide a completely
mobilized rotary drilling rig on the project site within thirty (30) days of being notified to
proceed.
Contractor will have to move the air-rotary drilling rig to the project site together with all
necessary supporting equipment and provide air or water for drilling. This work at the site will
include drilling rotary boreholes using tri-cone or Percussion rotary for the purpose of obtaining
continuous rock chip samples of bedrock, determination fracture zones and voids. Contractor
shall be prepared for directing and handling drilling water at the surface and drill cuttings to
prevent any unwanted offsite influence.
Contractor shall furnish and install eighteen-inch (18”) nominal Schedule 40 Steel overburden
casing pipe, furnish, install and tremie-grout fourteen-inch (14”) Sch 40 and eight-inch (8”)
SDR17 Certa-Lok, or equivalent, casing pipe in the hole as designated by the Department
Representative within the work area. The eighteen-inch (18”) casing will be used if needed to
allow for drilling of the fourteen-inch (14”) casing through loose unconsolidated material.
Once all work at the project site is completed, the Contractor shall remove all equipment from
the project site. All post-construction site conditions shall be as good or better than pre-
construction site conditions.
Due to the nature of the work, it might be necessary to slightly modify the tasks for borehole
construction while the work is being conducted. Such modifications could include: (1) relocation
of boreholes, (2) variation of the depth of the holes proposed for this project. Any modifications
shall be approved and directed by the Department Representative.
The Contractor agrees to furnish all necessary labor and equipment and to perform all the work
and labor required herein in an expeditious, substantial and workman-like manner.
Any questions regarding the Technical Specifications should be directed to Amanda Leasure at
814-472-1800. Any questions concerning the contracting or bidding process should be directed
to Jeannine Estok at 814-472-1800.
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II. CONTRACT TASKS
Contract No. AMD 17(1416)107.1
Hollywood AMDTP – Sludge Disposal Borehole I-3
SPECIFICATION NO. 1: MOBILIZATION AND DEMOBILIZATION
1.1 SCOPE
The work covered by this section consists of the delivery to the project area of all
equipment, material and supplies, acquisition of any permits, removal from the site of all
equipment after the completion of work, delivery of records, and final inspection by the
Department Representative.
1.2 PROCEDURE
Mobilization shall consist of the delivery to the project area of all equipment, material
and supplies to be furnished by the Contractor, the complete assembly in satisfactory
working order of all such equipment on the job and the satisfactory storage at the site of
all such supplies. Moving between holes and setups at hole locations included under the
Contract shall be incidental to the other appropriate Contract item and no separate
payment will be made.
Demobilization shall consist of the removal of all equipment from the project area and
clean-up and restoration of any damaged areas to as good as or better condition than that
which existed prior to the commencement of work.
All equipment and methods to be used by the Contractor shall be subject to approval by
the Department Representative. However, approval of the equipment shall not be
construed as approval of the performance thereof. The Contractor shall furnish any
additional or “special” equipment necessary for him to obtain the desired end results.
The Contractor, at his expense, shall obtain all permits, of whatever nature, necessary for
the completion of this work, and the Contractor shall comply with all existing laws,
ordinances, rules and regulations relating to his operations. The Department or its
designated representative will obtain easements from property owners.
Every effort shall be made to minimize incidental damage during access and drilling.
Maximum use will be made of existing roads and lanes for access. Where it is necessary
to deviate from roads and lanes, such deviation shall be by one (1) track, at a location
causing the least damage.
The Contractor shall be liable to the property owners for any damage to vegetation, crops,
and/or property, irrespective of whether the damage was caused by his negligence or was
an unavoidable consequence of drilling operations. The Contractor shall be liable for any
and all damage, including damages for necessary access. The Contractor shall be required
to consult with property owners as to when he intends to move equipment to the drilling
locations.
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1.3 DELIVERY OF RECORDS
Contract No. AMD 17(1416)107.1
Hollywood AMDTP – Sludge Disposal Borehole I-3
The Contractor shall be responsible for furnishing the following records for the project
area within the following time constraints:
A. Two (2) typed copies or electronic copies of each borehole log, no later than
twenty-one (21) days after completion of all of the boreholes Each borehole log
shall provide pertinent information such as, but not limited to:
1. Borehole number.
2. Borehole completion date.
3. Depth of unconsolidated material (top of bedrock).
4. Air loss or loss of returns.
5. Rock types (description of cuttings).
6. Measured void or caved and broken zone.
7. Depth to each water bearing zone.
8. Linear feet, size, type of casing.
B. Copies of any other records kept by the Contractor, which in the opinion of the
Department Representative will aid in the interpretation of the borings, may be
requested at any time during the course of the Contract.
No additional payment will be made for delivery of records, since delivery is included in
Contract Item, “Mobilization and Demobilization.”
1.4 MEASUREMENT AND PAYMENT
Measurement, when accepted and approved, will be made on the basis of a complete unit,
but only to the extent directed by the Department Representative.
Payment will be made at the Contract Unit Price bid per Contract Item, “Mobilization
and Demobilization,” which price and payment shall constitute full compensation for
furnishing all labor, material, equipment, supplies and all necessary incidentals required
to satisfactorily complete this item of work.
Mobilization will be paid in the amount of forty percent (40%) of the unit price bid
following complete mobilization.
Demobilization will be paid in the amount of sixty percent (60%) of the unit price bid
following complete demobilization.
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Contract No. AMD 17(1416)107.1
Hollywood AMDTP – Sludge Disposal Borehole I-3
SPECIFICATION NO. 2: DRILLING ROTARY BOREHOLES
2.1 SCOPE
The work covered by this section consists of furnishing all labor, material, equipment,
supplies and all necessary incidentals to drill boreholes at this site location. Work will
include drilling one (1) exploratory pilot hole into the abandoned Lower Kittanning Coal
Mine. The projected depth of each pilot hole is approximately 135’. Once the pilot hole
has intersected suitable conditions at mine elevation, this hole will be reamended to
accept final casing sizes. This work includes the following: drilling to accept eighteen-
inch (18”) nominal Schedule 40 steel casing pipe, if loose unconsolidated overburden
conditions warrant the use of the steel casing to facilitate drilling the fourteen-inch (14”)
overburden casing; drilling to 60’ accommodate fourteen-inch (14”) Schedule 40 PVC
casing pipe; installing the casing pipe and grouting the annulus to within fifteen feet (15’)
of the surface; drilling to accommodate eight-inch (8") SDR17 Certa-Lok, or equivalent,
casing pipe, installing the casing pipe and stage-grouting the annulus to surface through
130’ of rock, mined coal beds conditions to within five feet (5’) of the mine roof. The
Contractor shall submit a stage-grouting plan for approval prior to commencing grouting.
Total depth of the borehole is approximately 135’ below ground level.
2.2 PROCEDURE
All work shall be done under the direction of the Department Representative. The work
involves the drilling of a rotary borehole according to the Technical Specifications for the
project area.
The depth of the borehole is an estimate. The termination depth of the borehole will be at
the discretion of the Department Representative.
Drilling of the borehole shall be with non-percussion or percussion air-rotary drills at the
location shown on the Project Drawings or as designated by the Department
Representative. This does not preclude the use of churn drills for installing and handling
casing pipe or reopening boreholes, if required.
The Department Representative will designate the location and order of drilling of the
hole. The Contractor shall be responsible for determining the location of all underground
and overhead utilities such as, but not limited to telephone, cable, sewer, gas, water and
electric. Should the location of any utility prohibit the drilling of any borehole, the
Contractor shall advise the Department Representative for possible relocation of said
borehole. The Contractor shall not be paid for any borehole or part of any borehole that
should puncture a utility.
The rotary drills shall be equipped with complete dust control systems or mechanisms to
collect dust produced in the process of drilling and prevent the discharge of dust into the
atmosphere. The dust control systems shall be of ample capacity to serve under all
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