DSHW-2005-005316 - 0901a06880158189

HAND DELIVERED
DEC 2 2 2005 O5.of0&3
UTAH DIVISION OF
c;ni in ;;, t-iA7flDnniig iA/rtcj£:
SPECIFICATION FOR THE CONSTRUCTION OF
ONSITE NESTED MONITORING WELL GW-83
ATK Thiokol Inc.
Bacchus Works
West Valley City, Utah
October 2005
Prepared by
EARTHFAX ENGINEERING, INC. ^^S
Engineers/Scientists TaT^bS
Midvale. Utah \^k
EarthFax
HAND DELIVERED
DEC 2 22005
ATK Thiokol Inc. xT^'kztSSPr^r GW-83 Drilling Specification
Bacchus WorKs sbLlbTH«rREoUS WASTE °'='°'"™=
Table of Contents
Section Page
LO SCOPE 1
L1 PURPOSE 1
L2 BACKGROUND INFORMATION 1
2.0 DEFINITION OF TERMS 2
3.0 SAFETY AND PROTECTION 3
3.1 GENERAL 3
3.2 DRILLING CONTRACTOR'S HEALTH AND SAFETY REPRESENTATIVE 4
3.3 EMERGENCIES 4
3.4 PROTECTIVE EQUIPMENT 4
4.0 CLEANING UP 5
5.0 SUPERVISION OF WORK 6
6.0 GENERAL MATERIAL HANDLING AND STORAGE PROCEDURES 7
6.1 CLEANING AND DECONTAMINATION 7
6.2 CASING AND SCREEN STORAGE AND PREPARATION 7
6.3 GRAVEL PACK MATERIALS AND STORAGE 7
6.4 GROUT MATERIALS AND STORAGE 8
7.0 DRILLING AND MONITORING WELL CONSTRUCTION 9
7.1 GENERAL 9
7.2 DRILLING 9
7.2.1 Drilling Methods 9
7.2.2 Sanitary Protection ofthe Borehole 10
7.2.3 Driller's Log 10
7.3 MONITORING WELL MATERIALS 10
7.3.1 Monitoring Well Casing 10
7.3.2 Monitoring Well Screen 11
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ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
7.3.3 Gravel Pack Materials 11
7.4 MONITORING WELL INSTALLATION 11
7.4.1 Sanitary Protection of Wells 11
7.4.2 Screen and Casing Installation 12
7.4.3 Gravel-Pack Installation 12
7.4.4 Grout Installation 12
7.5 SURFACE PROTECTION 13
7.6 WELL DEVELOPMENT 14
7.7 GROUNDWATER SAMPLES 14
TABLE
Table Paqe
Table 7-1 Summary of Expected Depths and Material Requirements 15
APPENDIX
APPENDIX A: Surrounding Weli Logs
FIGURES
Figure
Figure 1. Location of Proposed Monitoring Well GW-083
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
SPECIFICATION FOR THE CONSTRUCTION OF
NESTED MONITORING WELL GW-83
ATK THIOKOL INC.
LOSCOPE
Ll PURPOSE
This specification covers the drilling of one borehole and the potential construction of
multiple monitoring wells within the borehole along the southeast portion of the Bacchus Works
(Figure 1). This borehole is to be drilled as specified in this document using rotary methods.
Depending on the strata encountered, wells may be completed in two isolated aquifers to allow
better definition of local hydrogeologic conditions. The Drilling Contractor shall provide all of the
goods and services called for in this specification, except as othenwise noted.
L2 BACKGROUND INFORMATION
From 1985 through the present, 73 onsite monitoring wells were installed at the Bacchus
Works of ATK Thiokol Inc. (previously Hercules), Incorporated. Based on the results of the past
drilling activities, the Bacchus Works Is underlain by unconsolidated sandy gravels, containing
quartzite boulders, in various thicknesses. This material is generally saturated at depths
ranging from a few feet to several tens of feet. Underlying the unconsolidated deposits is a silty
clayey ash that generally marks the bottom of the shallow saturated zone.
Previously installed monitoring well GW-047 is located approximately 1/2 mile west, GW-
059 is located approximately % south, GW-060 and GW-061 were drilled approximately Vi of a
mile southwest of the proposed well. Monitoring well GW-075 is located approximately Vi of a
mile northeast of the proposed well. A log of GW-047, GW-059, GW-060, GW-061, and GW-
075 are included in Appendix A. The stratigraphy of the proposed well may or may not be
similar to that encountered in the GW-047, GW-059, GW-060, GW-061, and GW-075.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
SPECIFICATION FOR THE CONSTRUCTION OF
NESTED MONITORING WELL GW-83
ATK THIOKOL INC.
LOSCOPE
1.1 PURPOSE
This specification covers the drilling of one borehole and the potential construction of
multiple monitoring wells within the borehole along the southeast portion of the Bacchus Works
(Figure 1). This borehole is to be drilled as specified in this document using rotary methods.
Depending on the strata encountered, wells may be completed in two isolated aquifers to allow
better definition of local hydrogeologic conditions. The Drilling Contractor shall provide all of the
goods and services called for in this specification, except as otherwise noted.
L2 BACKGROUND INFORMATION
From 1985 through the present, 73 onsite monitoring wells were installed at the Bacchus
Works of ATK Thiokol Inc. (previously Hercules), Incorporated. Based on the results of the past
drilling activities, the Bacchus Works is underlain by unconsolidated sandy gravels, containing
quartzite boulders, in various thicknesses. This material is generally saturated at depths
ranging from a few feet to several tens of feet. Underlying the unconsolidated deposits is a silty
clayey ash that generally marks the bottom of the shallow saturated zone.
Previously installed monitoring wells GW-060 and GW-061 were drilled approximately VA
of a mile southwest of the proposed well. Monitoring well GW-075 is located approximately VA of
a mile northeast of the proposed well. A log of GW-060, GW-061, and GW-075 are included in
Appendix A. The stratigraphy of the proposed well may or may not be similar to that
encountered in the GW-060, GW-061, and GW-075.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
2.0 DEFINITION OF TERMS
Whenever used in this specification or in other contract documents associated herewith,
the following terms shall have the meanings indicated, and these shall be applicable to both the
singular and plural and masculine and feminine thereof:
Drillina Contractor. The person, firm, or corporation with whom the Engineer has
executed the agreement. The Drilling Contractor must be licensed by the Utah Division
of Water Rights to drill water wells in the State of Utah.
Engineer. EarthFax Engineering, Inc. and its duly authorized representatives.
Owner. ATK Thiokol Inc.
Proiect. The entire construction to be performed as provided in this specification.
Subcontractor. An individual, firm, or corporation having a direct contract with the
Drilling Contractor for the performance of any part of the work at the site.
Work. Any and all obligations, duties, and responsibilities necessary to the successful
completion of the project assigned to or undertaken by the Drilling Contractor under the
contract documents, including the furnishing of all labor, materials, equipment, and other
incidentals.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
3.0 SAFETY AND PROTECTION
3.1 GENERAL
The Drilling Contractor shall be responsible for maintaining and supervising all safety
precautions and programs in connection with this project. The Drilling Contractor shall take all
necessary precautions for the safety of, and shall provide the necessary protection to prevent
damage, injury, or loss to (1) all employees of the Drilling Contractor on the project and other
persons who may be affected thereby, (2) all materials or equipment to be incorporated therein,
whether in storage on or off site, and (3) other property at the site or adjacent thereto, including
trees, shrubs, lawns, walks, pavements, roadways, structures, and utilities not designated for
removal, relocation, or replacement in the course of construction.
The Drilling Contractor shall comply with all applicable laws, ordinances, rules,
regulations, and orders of the Engineer or Owner, and any public body having jurisdiction for the
safety of persons or property or to protect them from damage, injury, or loss.
The Drilling Contractor shall erect and maintain, as required by the conditions and
progress of the work, all necessary barricades, signs, flags, lights, and other safeguards to
prevent injury to workmen and others on or about the construction site. Any barricades directed
by the Owner or Engineer to be erected shall be equipped with a flasher-type light approved by
the Owner.
In conjunction with this project, the Drilling Contractor shall develop and implement a
health and safety plan for use during performance of the work. Chlorinated solvents and
perchlorate have been detected in wells 1-mile west of the proposed wells and may be a
concern at the site; however, no data have identified contaminants in the area of the proposed
wells. It is the responsibility of the Drilling Contractor to implement a plan which addresses the
health and safety concerns for these possible constituents. Any questions regarding the
available data for the site can be addressed to the Engineer. Neither the Owner nor the
Engineer assumes responsibility for the health and safety of the Drilling Contractor or his
employees during performance of the Work.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
3.2 DRILLING CONTRACTOR'S HEALTH AND SAFETY REPRESENTATIVE
The Drilling Contractor shall designate a responsible member of his organization at the
site whose duty shall be the prevention of accidents and enforcement of health and safety
plans. This person shall be the Drilling Contractor's superintendent unless otherwise
designated in writing by the Drilling Contractor to the Engineer. This person shall be
responsible for immediately reporting any violations of the Drilling Contractor's health and safety
plan or other abnormalities to the Engineer's health and safety officer.
3.3 EMERGENCIES
In emergencies affecting the health and/or safety of persons or the work on property at
the site or adjacent thereto, the Drilling Contractor, without special instruction or authorization
from the Engineer, is obligated to act, at his discretion, to prevent threatened damage, injury, or
loss. He shall give the Engineer prompt written notice of any significant changes in the work or
deviations from the contract documents caused thereby, and a change order shall thereupon be
issued covering the changes and deviations involved.
3.4 PROTECTIVE EQUIPMENT
Steel-toed boots, hard hats, safety glasses, and waterproof gloves shall be worn by all
personnel within 25 feet of the drill rig at all times during performance of the Work contained in
this specification. Splash proof goggles or a face shield shall be worn whenever a splash
potential exists at the site. Gloves and other protective clothing shall be cleaned or replaced
frequently as needed to prevent contact of hazardous materials with the skin. Respirators and
other protective equipment shall be made available by the Drilling Contractor for use by himself
and his employees when required by the health and safety plan. Such respirators and
protective equipment shall be stored, maintained, and disposed of as directed by the Drilling
Contractor's health and safety plan.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
4.0 CLEANING UP
The Drilling Contractor shall keep the premises free from accumulations of waste
materials, rubbish, and other debris resulting from the work, and at the completion ofthe work at
the well site, shall remove all waste materials, rubbish, and debris from and about that site as
well as tools, construction equipment and machinery, and surplus materials, leaving the site
clean. The Drilling Contractor shall restore to their original conditions those portions of the site
not designated for alteration by the contract documents.
All drilling and service rigs as well as temporary steel casings and drive shoes shall be
thoroughly cleaned with steam prior to conducting any work on the borehole. Steam cleaning
equipment will be provided by the Drilling Contractor and stored at a location designated by the
Engineer for use by the Drilling Contractor.
All potentially hazardous or toxic waste generated as a result of the drilling activities (not
including drill cuttings) shall be containerized and stored in a location designated by the
Engineer as a Hazardous Waste Storage Area. Such materials will be disposed of by the
Owner.
The Drilling Contractor shall provide personnel decontamination station for the field crew
at the drilling location. The nature of this station shall be determined by the Drilling Contractor
based on the health and safety requirements of the work. At a minimum, this station shall
consist of a fresh-water washing station and a container for disposal of solid waste. If the work
environment degrades based on the health and safety monitoring, the workstation will of
necessity become more sophisticated.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
5.0 SUPERVISION OF WORK
The Drilling Contractor shall direct the work of his personnel as called for in the
specification in an efficient manner with his best skills and attention. The work and services to
be performed under this specification shall be subject to continual monitoring and inspection by
the Engineer. Periodic inspection may also be performed by the Owner and representatives of
the Utah Division of Solid and Hazardous Waste and the Utah Division of Water Rights. Such
inspection will be for the purpose of determining technical compliance with this specification and
other appropriate rules and regulations.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
6.0 GENERAL MATERIAL HANDLING AND STORAGE PROCEDURES
6.1 CLEANING AND DECONTAMINATION
Prior to setting up on the bore hole and following drilling of the bore hole, all equipment
that may contact the interior of a bore hole or that may contact other equipment that will enter
the bore hole (including, but not limited to, drill rods, bits, subs, sampling equipment, and tools)
shall be thoroughly steam cleaned in an area designated by the Engineer. Any tools, drilling
equipment, or sampling equipment that will be used down-hole and that is found laying on the
ground after cleaning or is othenvise deemed by the Engineer to be contaminated shall again be
steam cleaned prior to re-use. At the drill site, cleaned equipment shall be kept off the ground
by storing on cleaned metal racks or trailers (not wooden pallets).
6.2 CASING AND SCREEN STORAGE AND PREPARATION
Casing and screen used for monitoring well installation shall be stored at the site in a
location designated by the Engineer and shall be protected by contamination through the use of
a ground cover such as plastic or pallets. Prior to installation, all casing and screen shall be
cleaned if not delivered clean in plastic from the manufacturer. Care shall be taken during
installation of the casing and screen to prevent contamination of the materials following
cleaning. Materials that are deemed by the Engineer to have become contaminated after
cleaning shall be re-cleaned prior to installation in the borehole.
6.3 GRAVEL PACK MATERIALS AND STORAGE
The gravel pack to be used in each monitoring well shall consist of clean, well-rounded,
smooth, and uniform particles. The sand shall be siliceous, with a limit of 5 percent by weight of
calcareous material. Not more than 2 percent of the filter material shall consist of thin, flat, or
elongated pieces, as determined by hand picking. The filter shall be free of shale, clay, dirt, and
organic impurities.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
The filter material shall be delivered to the site in bags and shall be protected from
weather and contamination until used. A location will be designated by the Engineer for storage
of the filter material.
6.4 GROUT MATERIALS AND STORAGE
A mixture of Portland cement (ASTM C150) and not more than 7 gallons of clean water
per bag (94 pounds) of cement shall be used for grouting the annular space between the drill-
bore hole wall and the well casing. The use of other admixtures to reduce permeability,
increase fluidity, and/or control time of set must be approved by the Engineer prior to use.
Water used for preparation ofthe grout shall be obtained from a potable-quality supply.
The grout materials shall be delivered to the site in bags and shall be protected from
weather and contamination until used. A location will be designated by the Engineer for storage
of the grout materials.
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
7.0 DRILLING AND MONITORING WELL CONSTRUCTION
7.1 GENERAL
All drilling information collected from the site during the performance of the Work is
proprietary and is the property of the Owner. As such, this information shall not be divulged by
the Drilling Contractor or his subcontractors to any entity other than the Owner or the Engineer.
7.2 DRILLING
7.2.1 Drilling Methods
Drilling of the borehole shall be by the rotary method, unless otherwise directed by the
Engineer. The borehole shall be drilled to the depth specified in the field by the Engineer and at
a sufficient diameter to accommodate the anticipated two well casings, gravel pack, and grout
seal, with a minimum thickness of 2 inches of grout around the permanent casing and
couplings. No fluids shall be injected into the borehole during drilling other than clear water
obtained from potable-quality supply unless specifically approved by the Engineer in the field.
Anticipated total depth of the drill borehole is 350 feet. It shall be the responsibility ofthe Drilling
Contractor to ensure that the borehole maintains alignment, plumbness, and roundness during
installation.
Temporary casing shall be driven during construction of each monitoring well to maintain
borehole integrity. The diameter of this temporary casing shall be sufficient to accommodate
the anticipated two well casings, gravel pack, and grout seal, with a minimum thickness of 2
inches of grout around the permanent casing and couplings, but not less than 12 inches. The
temporary casing shall be driven by percussion or rotated by the rig unless otherwise approved
by the Engineer.
During drilling of each monitoring well, formation samples shall be collected by the
Drilling Contractor in a manner chosen by the Drilling Contractor and approved by the Engineer.
Formation samples must be collected at sufficient frequency and at sufficient increments of
depth to permit a thorough evaluation by the Engineer of the lithologic properties of the
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
formations encountered during drilling of the borehole. At least one formation sample shall be
collected each 5 feet and at any pronounced changes in lithology.
The driller shall provide a maximum daily standby cost (with crew) based on an 8-hour
working day. This cost shall be prorated on an houriy basis for the accumulated standby hours
on any given workday. Standby charges will be allowable only on workdays scheduled by the
Engineer.
7.2.2 Sanitary Protection ofthe Borehole
At all times during the progress of the Work, the Drilling Contractor shall use reasonable
precautions to prevent either tampering with or entrance of foreign material into the bore hole.
7.2.3 Driller's Log
During all drilling and installation activities at the site, a daily, detailed driller's report shall
be maintained and delivered upon request to the Engineer. The report shall give a complete
description of all materials encountered, number of feet drilled, number of hours on the job,
down time due to mechanical failure or other causes, feet of casing set, and other pertinent data
as may be requested by the Engineer.
Following completion of all drilling activities at the site, the Engineer will prepare the
appropriate forms for submission to the Utah Division of Water Rights concerning the drilling
and construction activities. These forms will be submitted to the Drilling Contractor for his
signature and subsequent submittal to the Division as required by their regulations. The Drilling
Contractor shall submit other documentation required by the Division at appropriate times.
7.3 MONITORING WELL MATERIALS
7.3.1 Monitoring Well Casing
All permanent well casing shall be new Schedule 80 PVC. The PVC casing shall have a
nominal inside diameter of 2 inches. The casing shall bear mill markings that will identify the
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ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
material as that specified. Lengths of PVC casing to be used for bidding purposes are provided
in Table 7-1. Actual completion depths and casing and screen lengths shall be determined by
the Engineer based on borehole lithology and aquifer zone yields. All joints on the PVC shall
be flush threaded. No solvent-welded joints will be permitted.
7.3.2 Monitoring Well Screen
All monitoring well screen shall be of the continuous-slot, wire-wound design, reinforced
with longitudinal bars. Each adjacent coil of wire shall be shaped in such a manner as to
increase in size inward. The well screen shall be completely fabricated of Schedule 80 PVC
with a nominal inside diameter of 2 inches.
Based on past drilling in the area, it is currently anticipated 2 lengths, each 15 linear feet,
of screen (total of 30 feet) will be required. The screen shall have an aperture of 0.015 inch or
as specified by the engineer based on analyses ofthe cuttings.
7.3.3 Gravel Pack Materials
For a screen aperture of 0.015 inch, the gravel pack shall consist of 16- to 30-mesh
silica sand. This material shall meet the requirements of Section 14.5 ofthis specification.
7.4 MONITORING WELL INSTALLATION
7.4.1 Sanitary Protection of Wells
At all times during the progress of the Work, the Drilling Contractor shall use reasonable
precautions to prevent either tampering with or entrance of foreign materials into the wells.
Upon completion of the installation activities, for each individual well In the borehole, the Drilling
Contractor shall install a PVC slip cap to the top of each inner casing string to prevent pollutants
from entering the well.
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ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
7.4.2 Screen and Casing Installation
It is currently anticipated that each well will be multiply completed with two strings of
casing and screen. It is further anticipated that each string will consist of a 15-foot section of 2-
inch diameter screen (capped at the bottom) with 2-inch diameter schedule 80 PVC blank
casing extending from the top of the screen to the ground surface. The Engineer will specify
actual screen and casing lengths in the field. The casing and screen shall be lowered into the
borehole using the drilling rig or a service rig, utilizing clamps, elevators, or other mechanical
devices as needed.
Casing and screen shall be joined using the flush-threaded joints that are an integral part
of the materials. The completed string of casing and screen shall be of sufficient length to
extend from the desired depth to a point approximately 2 feet above the existing land surface.
Centralizers shall be used to position casing in the borehole. Spacers shall be used to ensure
that the casing and screen segments are separated to allow good completions.
7.4.3 Gravel-Pack Installation
The gravel pack will consist of 16- to 30-mesh gravel and shall extend from a point
approximately 2 feet below the bottom of each screened interval to a point approximately 5 feet
above the top of each screened interval of the monitoring well strings. The gravel shall be
installed using a tremie pipe. Approximately 2 feet of 70-mesh silica sand shall be placed on
top of each 16- to 30-mesh gravel pack layer to serve as a barrier between the gravel pack and
the cement grout. In the cases of the upper two well strings, 70-mesh silica sand shall also be
placed below the bottom of the gravel pack with a thickness of approximately 2 feet.
7.4.4 Grout Installation
Grout material shall be placed between the lower and upper-screened section, and
above the upper-screened section. Grout between the lower and upper screened sections shall
be allowed to cure for a period of at least 4 hours prior to placing the next overlying gravel pack.
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ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
The grout shall be mixed in accordance with Section 13.4 of this specification. Grout
material shall be emplaced using a positive displacement method such as pumping, forced
injection by air pressure, or tremie installation. Grout shall be installed in the annular space
between the inner casing and the borehole wall. The grout pipe shall have a minimum inside
diameter of 1 inch and shall extend from the surface to the bottom ofthe zone to be grouted.
Grout shall be placed from the bottom to the top in one continuous operation unless
directed othenwise in the field by the Engineer. Where the grout extends into any temporary
steel casing, this casing shall be pulled gradually as the grout is installed. However, in no case
shall the temporary steel casing be pulled above the top of the existing grout level. The grout
pipe may be slowly raised as the grout is emplaced but the discharge end ofthe grout pipe must
be submerged in the emplaced grout at all times until grouting of a given section is completed.
To the extent possible, the grout pipe shall be maintained full to the surface at all times until
grouting of the entire specified zone is completed. In the event of interruption of grouting
operations, the bottom of the grout pipe shall be raised above the grout level and shall not be
re-submerged until all air and water have been displaced from the pipe and the pipe flushed
clean with clear water.
7.5 SURFACE PROTECTION
Following completion of grouting operations but prior to curing of the grout, a protective
well cover with a diameter of not less than 10-inches shall be placed in the grout, extending to a
point approximately 2 feet below the ground surface. A lockable, well cap shall be placed on
the protective well cover to prevent unauthorized entry. The protective well cover shall be
constructed of steel.
Following installation of the surface protection and caps, a concrete pad shall be
constructed around the well cover. This pad shall extend a minimum of 6 inches below and 4
inches above the ground surface. The pad shall be square (measuring three feet on a side) or
round (measuring three feet in diameter). The surface of the pad shall be sloped away from the
well cover to shed water. Foreign materials such as metal scraps, large cobbles, wood chips,
etc. shall not be incorporated into the pads.
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ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
7.6 WELL DEVELOPMENT
Following completion of the grouting operations and installation of the surface protective
casing and pad, the monitoring wells shall be developed by surging and bailing or pumping.
The surging shall be done by either a solid or valved surge block. Fines drawn into the well
shall be bailed or pumped out periodically before such accumulation reaches 10 percent of the
submerged screen length. No development aids shall be used during development of the wells.
Development shall continue until the water obtained from the well is visibly clear or as approved
by the Engineer.
7.7 GROUNDWATER SAMPLES
Periodic groundwater samples will be collected from the discharge hose on the drilling
rig to screen for contaminants. Groundwater samples will be collected after sealing the zone
above the zone to be sampled with the advanced casing. Water samples will be collected after
allowing the water blown from the well to become clear.
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ATK Thiokol Inc.
Bacchus Works
GW-83 Drilling Specification
October 2005
TABLE 7-1
Summary of Expected Depths and Material
Requirements for the Monitoring Wells
Well
GW-831
GW-832
Total Depth
200
350
Total
Completed
Depth
200
350
Tubular Goods (feet)
Screen
15
15
PVC Casing
185
335
15
q: \uc1020\01\2005\proposed well.dwg
0" 500'
FIGURE 1. PROPOSED MONITORING WELL LOCATION
rjT ^Ai
EarthFax
ATK Thiokol Inc. GW-83 Drilling Specification
Bacchus Works October 2005
APPENDIX A
Surrounding Well Logs
GEOLOGIC LOG
X
t-
0.
iLl a
3
X a. < ir
DESCRIPTION
WELL CONSTRUCTION
DETAILS
— 20
» 0
0,0 0
0 (J O
. 1. •
<»* •»
E- 40
E- 60
I
•0,0 .•
.<>o.<C>*-, ,c.-.o-.C
^«
r,o.-.Q.(
.•.©.•, ,0:-.
80
E-iOO ^;
—120 ?:•
.Oo'
•.'o.Q\
t.96:r,ct
.o.O.«„
*»7
Oh
Tew
8" prolactlve casing
Concrete pad
Cobbly gravel
Silty sand
Sandy silt
Sandy gravel
Gravelly sand
Silty sandstone
5" PVC blank
Benseal -
70-mesh silica sand ,
,?0-40 mesh silica sand '
stainless reducer
9T
94'
- 4" stainless blank
•4" stainless screen,
15 slot
125'
TD=I25'
EarthFax
Engineering Inc.
EarthFax PROJECT NO. c-20
• H y HERCULES
BACCHUS
WORKS
WELL GW-47
TOP OF CASING ELEV. s 4,799.22
GROUND SURFACE ELEV.: 4.797.39
STRATIGRAPHIC LOG
GW-4 7
0.0'-22.0': Cobbly gravel. 40% gravel, 20% cobbles and
boulders, 20% sand, 20% silt with a trace of clay
grading with depth to 70% gravel, 20% sand, 10%
silt with clay. Gravel is rounded to subangular
quartzite, sandstone, siltstone and andesite-
latite. Sand is very fine to very coarse grained,
rounded to subangular quartz and dark minerals.
Carbonate coats on larger clasts. Silty matrix
reacts strongly to HCl. Dark grayish brown (2.5Y
4/2), brown (lOYR 5/3) with depth.
22.0"-26.0': Silty sand. 45% sand, 45% silt, 10% clay. Sand
is very fine and very coarse grained, rounded to
subangular, quartz and dark minerals. Strong
reaction to HCl. Light yellowish brown (lOYR
6/4) .
26.0'-41.0': Sandy silt. 60% silt, 25% sand, 15% gravel,
grading with depth to 40% silt, 35% gravel, 15%
sand, 10% clay. Sand as above. Gravel is
subrounded to subangular quartzite and andesite-
latite, many clasts have iron and manganese
staining. Strong reaction to HCl. Light
yellowish brown (10 YR 6/4).
41.0'-60.0': Sandy gravel. 40% gravel, 30% silt, 20% sand, 10%
clay, grading with depth to 40% gravel, 30% sand,
20% silt, 10% clay. Gravel is subrounded to
subangular quartzite, andesite-latite, sandstone,
siltstone and limestone. Sand is very fine to
very coarse grained, rounded to subangular quartz
and dark minerals. Clayey silt matrix reacts
strongly to HCl. Light yellowish brown {lOYR
6/4), pale brown (lOYR 6/3).
60.0'-118.0' : Gravelly sand . 50% sand, 20% gravel, 20% silt,
10% clay. Sand is very fine to very coarse
grained, rounded to subangular quartz and dark
minerals with some vitric ash. Gravel is
subrounded to subangular quartzite, sandstone,
limestone, andesite-latite and occasional tuff
fragments. Clayey silt matrix reacts strongly to
HCl. Light yellowish brown (lOYR 6/3), brown
(lOYR 5/3).
118 . 0 '-125 . 0 ' : Silty sandstone. Sand is fine to medium grained,
50% angular vitric ash and 50% rounded quartz.
Silt is vitric ash. Strong reaction to HCl. Pale
brown (lOYR 5/3).
GEOLOGIC LOG
WELL CONSTRUCTION
DETAILS
TD=245'
EarthFax
Engineering Inc,
EaiihFax PROJECT NO. c-20
a U HERCULES
BACCHUS
WORKS
WELL GW~59
TOP OF CASING ELEV. s 4,907,08
GROUND SURFACE ELEV,= 4,905.07
STRATIGRAPHIC LOG
GW-59
0.0'-3.0': Gravelly silt. 40% silt, 30% gravel, 20% sand,
10% clay. Gravel is subrounded to subangular,
mostly quartzite, with some andesite-1 atite ,
siltstone, sandstone and limestone. Sand is very
fine to very coarse grained, rounded to subangular
quartz, with minor dark minerals. Larger clasts
have carbonate coatings. Strong reaction to HCl.
Very dark gray (lOYR 3/1).
3.0'-10.0': Silty sand. 35% sand, 30% silt, 30% gravel, 5%
clay. Sand and gravel as above. Carbonate
coatings on larger clasts are thinner than those
above. Some sand and gravel particles are iron
stained. Strong reaction to HCl. Very dark gray
(lOYR 3/1) .
10.0'-44.0': Sandy gravel. 60% gravel, 30% sand, 10% silt, <5%
clay grading with depth to 45% gravel, 35% sand,
15% silt, 5% clay. Gravel is subrounded to
subangular, quartzite and andesite-latite with
some siltstone, sandstone and limestone. Sand is
very fine to very coarse grained, rounded to
subangular quartz, with some dark minerals and
mica. Sandstone and siltstone have minor
manganese staining. Strong reaction to HCl.
Brown (7.5YR 5/4).
44.0'-60.0': Gravelly sand. 55% sand, 25% gravel, 15% silt, 5%
clay. Sand is very fine to very coarse grained
(predominantly very coarse grained), rounded to
subangular, quartz and dark minerals. Gravel is
rounded to subangular quartzite, andesite-latite,
limestone and some siltstone and sandstone.
Sandstone and siltstone fragments have minor
manganese staining. Strong reaction to HCl.
Brown (7.SYR 5/4).
60.0'-86.0': 'Sandy gravel. 50% gravel, 30% sand, 15% silt, 5%
clay. Same as interval 44.0'-60.0', but color is
yellowish brown (lOYR 6/4).
86.0'-95.0': Silty sand. 55% sand, 30% silt, 10% gravel, 5%
clay grading with depth to 45% sand, 30% gravel,
20% silt, 5% clay. Sand is very fine to very
coarse grained (predominantly medium to fine
grained), rounded to subrounded, quartz with dark
minerals and vitric ash. Gravel is subrounded to
subangular, quartzite and andesite-latite, with
some siltstone and sandstone. Strong reaction to
HCl. Brown (7.SYR 5/4) .
GW-59 continued (page 2)
95.0'-211.0': Sandy gravel. 60% gravel, 30% sand, 10% silt, 5%
clay, occasional cobbles and boulders. Gravel is
subrounded to subangular quartzite and andesite-
latite, with some siltstone and sandstone. Sand
is very fine to very coarse grained, rounded to
subrounded, mostly quartz with some dark minerals
and vitric ash, mica, and calcareous nodules
(approximately 0.04" diameter). Matrix reacts
strongly to HCl. Yellowish brown (lOYR 6/4) to
brownish yellow (lOYR 6/6).
211.0'-245.0' : Gravelly sand. 60% sand, 25% gravel, 10% silt, 5%
clay. Sand is very fine to very coarse grained,
rounded to subangular quartz with dark minerals,
mica and vitric ash. Gravel as above, but
sandstone is medium grained, poorly indurated,
soft. Occasional carbonate nodules (approximately
0.04" diameter) . Clayey silt matrix reacts
strongly to HCl. Yellowish brown (lOYR 6/4).
GEOLOGIC LOG
r
*—" X H-
OL Ui
Q
O
3
o
I 0.
< te. IS
DESCRIPTION
WELL CONSTRUCTION
DETAILS
Concrete pod
— 20
— 40
— SO
- SO
—IOO
—120
— 140
—160
fii 7m
,»<>0-(
.»,Oia
o
^•"'••ZcP^
,- O'oC
°S.9--b
i-.Q-.Q:'
boon
:ro-C
t^^!^o
i:oQ-.V
:9:-o:
— 100
— 20C
Oh
_ :-a?
S^:o,Q-.°q
0
Tew
Sandy gravel
Sandy silt
Sandy gravel
Silty sand
Sandy grovel
Silty sandstone
TD=202'
70-mesh silica sand
20-40 mesh silica sand
6" protective cosing
Neat cement
Stainless reducer
4" stainless blank
4" stainless screen,
15 slot
20?
^^ EarthFax
^^\^ Engineering Inc.
M B
EarthFax PROJECT NO. c-20
{>] HERCULES
BACCHUS
WORKS
WELL GW-60
TOP OF CASING ELEV. s 4,860.37
GROUND SURFACE ELEV.: 4,857.87
STRATIGRAPHIC LOG
GW-60
O.O'-IO.O': Sandy gravel. 65% gravel, 20% sand, 15% silt with
trace of clay. Gravel is subrounded to angular,
quartzite, sandstone, carbonates, volcanics.
Moderate reaction to HCL. Boulders from 2'to 7'.
Dark brown (lOYR 3/3).
10.0'-24.0': Sandy silt. 45% silt, 30% sand, 20% gravel, 5%
clay. Gravel is angular to subangular. Sands are
quartzite, carbonate, volcanics, chert. Mostly
fine grained. Clay present as balls. Moderate
reaction to HCL. Yellowish brown (lOYR 5/5).
24.0'-75.0': Sandy gravel . 65% gravel, 20% sand, 15% silt.
Gravel is angular to subangular, quartzite,
carbonate, volcanics. Sand is subangular to
subrounded, fine grained, quartz. Moderate
reaction to HCL. Pale brown (lOYR 6/3) .
75.0'-85.0': Silty sand.
85.0'-188.0': Sandy gravel , Volcanics make up a large
percentage of gravels.
188.0'-202.0•: Silty sandstone with a trace of gravel. Gravels
contain carbonate clasts, volcanics with
phenocrysts, siltstone. Reddish color.
GEOLOGIC LOG
t
""^ X (-a. UJ
a
o
3 u
X
a. < ir
DESCRIPTION
WELL CONSTRUCTION
DETAILS
f. o •.•V
i; P."«*," c
-20
— 40
o ••• • •
'-°^
-so
-IOO
—120
—140
h-.r<l
•F-rt;^
•.iif^
Sandy gravel
Gravelly sand
Qh
-160
-180
f&7^
Sandy gravel
Gravelly sand
with 45% - 75% sand
Silty sand with gravel
Siltstone 3 sandstone
Tew
.--. ---••*-*:
Sandstone
Siltstone a sandstone
TD=20I.5'
8" protective casing
Concrete pad
-^ ra^ ^ g ^
g
5" PVC blank z I
^ I
z
70-mesh silica sand
20-40 mesh silico sand -
Neat cement'
i -Neot cement
I
I
g
^^
I g I I
<y.
ig
i
•stainless reducer
•loy
4" stainlass blonk
•rrr
•I7S"
-<ttS
• 4" stainless screen,
IS slot
EarthFax
r^X*! Engineering Inc.
EarthFax PROJECT NO. c-20
HERCULES
BACCHUS
WORKS
WELL GW-61
TOP OF CASING ELEV. s 4,884,29
GROUND SURFACE ELEV.: 4,881.79
STRATIGRAPHIC LOG
GW-61
0.0'-15.0': Sandy gravel. 50% gravel, 30% sand, 15% silt, and
5% clay. Gravel is subangular to subrounded,
mostly 1/4 -1" clasts: 40% quartzite (white and
tan), 30% andesite-latite, and 30% siltstone,
sandstone, and limestone. Silt and clay react
strongly to HCl. Yellowish brown (lOYR 5/4) and
pale brown (lOYR 6/3).
15.0'-25.0': Gravelly sand. 45% sand, 40% gravel, 15% silt,
minor clay. Gravel as above. Fines are
terrigenous with minor amounts of vitric ash.
Fines react strongly to HCl. Pale brown (lOYR
6/3) and light yellowish brown (lOYR 6/4) .
25.0'-60.0': Sandy gravel. 60% gravel, 30% sand, and 10% silt.
Gravel is mostly quartzite, with andesite-latite,
siltstone, and carbonate. Boulders present at 37
to 41', and 46*. Sand is mostly quartz, with
carbonate and vitric ash. Fines react strongly to
HCl. Pale brown (lOYR 6/3), light yellowish brown
(lOYR 6/4), and brown (lOYR 5/3).
60.0'-70.0': Gravelly sand. 45% sand, 40% gravel, and 15%
silt, same as interval 15.0' to 25.0', but brown
(lOYR 5/3).
70.0'-77.0': Gravelly sand. Same as above, but approximately
75% sand, 20% gravel, and 5% silt. Carbonate
coats on larger clasts. Fines react moderately to
HCl, Brown (lOYR 5/3).
77.0'-80.0': Sandy silt. 40% silt, 30% sand, 20% gravel, and
10% clay. Sand is angular to subrounded, mostly
fine to medium grained quartz and dark minerals.
Gravel is subangular to subrounded, mostly
quartzite and limestone with minor amounts of
sandstone. Clay fraction is altered vitric ash
and forms clay balls in the bailed sample. Pale
brown (lOYR 6/3).
80.0'-115.0': Silty sand. 75% sand, 15% silt, 7% gravel, and 3%
clay. Sand is subangular to subrounded, primarily
very fine to fine grained: 30% quartz and
quartzite, 40% siltstone and sandstone, 15% tuff,
and 15% dark minerals and carbonate, and a minor
amount of medium to coarse grained sand which
consists of lithic sandstone and tuffaceous silt-
stone. Gravel is subangular to subrounded: 50%
lithic sandstone, 30% sandy tuff, 10% tuffaceous
siltstone, and 10% quartzite and limestone. Sand-
stone fragments are a poorly to moderately
GW-61 continued (page 2)
lithifled volcanic lithic arenite. Clay balls are
present in samples bailed from 77-85' and 105-
110'. Fines react moderately to HCl. Pale to
very pale brown (lOYR 6/3-7/3), yellowish brown
(lOYR 5/4-6/4
115.0'-150.0'
150.0'-175. 0 ' : Sandstone . 90% sand, 7% silt, and 3% gravel
Sand is subangular to subrounded, primarily very
fine to fine sand: 50% quartzite and quartz, 30%
vitric ash, and 20% dark minerals; and medium to
coarse sand which consists of reddish brown
sandstone and siltstone, and white sandy tuff.
Gravel is angular to subangular, reddish brown to
brown sandstone and siltstone. Silt fraction
contains quartz and vitric ash. Very pale brown
(lOYR 7/3) to light gray (lOYR 7/2).
175. 0 '-201. 5 ' : Siltstone and sandstone . As above, but
approximately 85% sand, 10% silt, and 5% gravel.
Gravel is subangular to subrounded white vitric
tuff (partially altered) and reddish brown very
fine grained lithic sandstone and siltstone. The
lower 6.5' of the interval contains a greater
amount of siltstone than the upper 10'. Pale
brown (lOYR 6/3), light yellowish brown (lOYR
6/4), brownish yellow (lOYR 6/6).
GEOLOGIC LOG COMPLETION DETAILS
o o
i
PUiiiP
40
60
80
ELEVATION AT TOP OF STEEL CASINa 4770.6T
DESCRIPTION LOCKING WELL/
CAP 8-INCH
STEEL SURFACE
- CASINO
0 - 5' SILTY SAND TOPSOIL WITH GRAVEL AND BOULDERS;
MINOR CLAY: DARK BROWN,
S - 34- CLAYEY SILT WITH SAND AND GRAVEU MEDIUM BROWN,
DARK REDDISH BROWN. AND BROWN. HAHKER3 ALLUVIUM
100.
!•
34 -60" TUFFACEOUS SILTY SANDSTONE CVFT; 6 TO 10 % ORAVEL;
GRAVEL CONSISTS OF IGNEOUS ROCK FRAGMENTS AND
WHITE MICRITIC LIMESTONE LIGHT BROWN AND
BROWNISH GRAY. CAMP WILLIAMS UNIT
60 - IS SANDY SILTSTONE; BROWN.
75 -105' SILTY SANDSTONE (VF) WITH 10 TO 20 % GRAVEU
GRAVEL CONSISTS OF IGNEOUS ROCK FRAGMENTS; BROWN.
120
140 _
160.
105 - laff MUDSTONE; MINOR SAND FROM tl5 TO IZO";
GREENISH GRAY.
4' 318 STAINLESS
BLANK
C7S-851
STATIC WATER
LEVEL = 84.6'
12/13/90
FIRST
WATER AT 98-
4' 15 SLOT
31S STAINLESS
STEEL SCREEN
(B5-T»n
EarttiFax
Engineering. Inc
HERCULES INCORPORATED
BACCHUS WORKS
MONITORING WELL
GW-75
Conglomerate Silty sand Siltstone / Claystone
y
^ t» ^ Q . » •v .
n'n".*,^ . ^ %
Gravel Clayey sand
Sand a gravel
:.;-:,f;r:-,-^
^r!(Piri^:
:p!m
Sandstone Sandy clay
Sandy gravel with clay Sandstone 8 gravel Silty clay
Sandy gravel with silt Sandstone 3 all
mud matrix Sandy silty clay
<» •. ,.«!'.f :«,|d
' " '. •'€,, ».|0| ^ ;•.
• n ii «i «i « » •
Silty gravel Silt Tuff
Clay a gravel Clayey silt
1—r
I I
I . I
Limestone
Sand
GEOLOGIC SYMBOLS
PREPARED BY
EarthFax Engineering Inc.
DATE
11/88