Hollywood Sludge Disposal

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 30 L. F.
Fourteen-Inch (14") Sch 40 PVC Overburden
Casing Pipe
2D Drilling Boreholes to Accommodate 135 L. F.
Eight-inch (8") SDR17 Certa-Lok, or equivalent,
Casing Pipe
3A Eighteen-Inch (18") Nominal Sch 40 Steel Overburden 15 L.F
Borehole Casing Pipe.
3B Fourteen-Inch (14") Sch 40 PVC Casing Pipe 30 L.F
Including Tremie-Grouting
3C Eight-inch (8") SDR17 Certa-Lok, or equivalent, 135 L.F
Casing Pipe Including Tremie-Grouting
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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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
II. CONTRACT TASKS
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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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
1.3 DELIVERY OF RECORDS
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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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
conditions. Drilling rigs shall be of sufficient size and capacity to carry on drilling
operations in an efficient manner.
All precautions shall be taken by the Contractor to ensure that the hole is plumbed when
drilling boreholes. A stabilizer, not less than ten feet (10') in length and one inch (1") less
in diameter than the diameter of the bit, shall be attached to the cutting bit and stem.
The Contractor shall be required to drill boreholes through the rock strata with a drill bit
sufficient in diameter to accommodate the specified borehole-casing pipe with a
minimum 3.62" of annulus space for tremie-grout sealing to the requested target depth.
When an opening in a coal bed or other void is encountered, the Contractor shall probe
the opening or void to determine its depth and condition. Payment for such probing will
be as drilling at the specified diameter and at the same price per linear foot (L.F.) listed in
the Contract Unit Price.
The Contractor shall keep and furnish to the Department Representative an accurate log
of the completed borehole, which shall include, but is not limited to, the type and
condition of the unconsolidated overburden (wash), rock strata and coal beds. A more
detailed description of the information required for each borehole log is outlined in
Contract Item, "Mobilization and Demobilization," Section 1.3 Delivery of Records.
In the event the walls of the borehole begin to cave or barrel, the Contractor shall be
required to either introduce Sodium Bentonite into the borehole or to attempt any other
method the Contractor deems suitable to stabilize the borehole wall, providing it meets
with the approval of the Department Representative.
Any borehole that may be lost or become unusable must be reopened or replaced at the
expense of the Contractor. Any borehole that is lost or becomes unusable must be sealed
at the Contractor's expense.
If additional boreholes are necessary, in the opinion of the Department Representative,
the Contractor shall drill same at the price per linear foot listed in the Contract for similar
size boreholes.
2.3 MEASUREMENT AND PAYMENT
Measurement, when accepted and approved, for non-percussion or percussion rotary
drilling of the diameter specified will be made based on the linear feet (L.F.) of holes
actually drilled and accepted by the Department Representative, but only to the extent
directed.
Payment will be made at the Contract Unit Price bid per linear foot (L.F.) for Contract
Items, 2A) "Drilling Exploratory Pilot Hole (minimum 4.5"), 2B) "Drilling Rotary
Borehole to Accommodate Eighteen-Inch (18") Nominal Sch 40 Steel Casing Pipe,"
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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
2C) "Drilling Rotary Borehole to Accommodate Fourteen-Inch (14") Sch 40 PVC Casing
Pipe, 2D) "Drilling Rotary Borehole to Accommodate Eight-Inch (8") SDR17 Certa-Lok,
or equivalent, Casing Pipe," with minimum 3.62" annulus, 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.
SPECIFICATION NO. 3: FURNISHING AND INSTALLING CASING PIPE
3.1 SCOPE
The work covered by this section consists of providing all labor, material, equipment and
incidentals required to furnish and install eighteen-inch (18") Schedule 40 Steel casing
pipe. Furnish, install and tremie-grout fourteen-inch (14") Schedule 40 PVC casing pipe,
and eight-inch (8") SDR17 Certa-Lok, or equivalent, casing pipe into the borehole.
3.2 PROCEDURE
The Contractor shall furnish and install new Schedule 40 Steel and PVC well casing pipe
in all boreholes, which shall be used for dewatering and monitoring purposes of a
Designated Dangerous Impound. The Department Representative shall specify casing
pipe size and type and shall approve all casing pipe before it is installed in the boreholes.
A. Eighteen-inch (18") nominal diameter Schedule 40 Steel casing pipe shall be
installed to fifteen feet (15') below ground level (BGL).
B. Fourteen-inch (14") diameter Schedule 40 PVC casing pipe shall be installed to 30'
below ground level (BGL). The annulus space shall be grouted from the bottom to
within fifteen feet (15') of ground level.
C. Eight-inch (8") diameter SDR17 Certa-Lok, or equivalent, casing pipe, shall be
installed in the boreholes from the surface to the designated depth and shall be
securely anchored. The annulus space shall be stage grouted from the bottom of the
casing to the ground surface (see Attachment 5). A grouting plan shall be submitted
for department review and approval prior to starting the grouting process.
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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
CERTA-LOK WELL CASING SPECIFICATIONS
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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
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Contract No. AMD 17(1416)107.1
Hollywood AMDTP - Sludge Disposal Borehole I-3
The cost of grouting and of making a watertight seal shall be included in the price per
linear foot(L.F.) for the specified diameter borehole casing pipe as listed in the Contract
Unit Price.
3.3 MEASUREMENT AND PAYMENT
Measurement, when accepted and approved, for casing pipe will be made on the basis of
the linear feet (L.F.) of casing pipe of the diameter and type specified, furnished and
installed, but only to the extent directed.
Payment will be made at the Contract Unit Price bid per linear foot (L.F.) for Contract
Item,
A. "Furnishing and Installing Eighteen-Inch (18") Sch40 Steel Casing Pipe
B. "Furnishing and Installing Fourteen-Inch (14") Sch40 PVC Casing Pipe,
Including Grouting,"
C. "Furnishing and Installing Eight-Inch (8") SDR17 Certa-Lok, or equivalent,
Casing Pipe, Including Grouting."
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.
SPECIFICATION NO. 4: EIGHT-INCH (8") SDR17 PVC SEALING CAP
4.1 SCOPE
The work covered by this section consists of providing all labor, material, equipment and
incidentals required to furnish and install eight-inch (8") PVC sealing cap.
4.2 PROCEDURE
The Contractor shall furnish and install a new eight-inch (8") PVC sealing cap. The sealing
cap needs to be secured but also must be removable.
4.3 MEASUREMENT AND PAYMENT
Measurement, when accepted and approved, will be made based on the installed sealing
cap, but only to the extent directed and accepted by the Department Representative.
Payment will be made at the Contract Unit Price bid for Contract Item, Eight-Inch ("8")
PVC Sealing Cap" on the Bid Form. The 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.
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