°000045 227905 REPORT BLASLAND & BOUCK ENGINEERS, P.O. Supplemental Hydrogeologic Investigation Plan WINSTON THOMAS FACILITY & BENNETT'S DUMP Westinghouse Electric Corporation Waste Technology Services Division Waltz Mill Site,Pennsylvania August 1986
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REPORT: SUPPLEMENTAL HYDROGEOLOGIC ...Task 2.1 will delineate the thickness of Harrodsburg Limestone beneath the Winston Thomas Facility Site. Westinghouse performed studies that include
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°000045
227905
REPORTBLASLAND & BOUCK ENGINEERS, P.O.
SupplementalHydrogeologic Investigation
Plan
WINSTON THOMAS FACILITY & BENNETT'S DUMP
Westinghouse Electric CorporationWaste Technology Services Division
Waltz Mill Site, Pennsylvania
August 1986
SUPPLEMENTAL HYDROCEOLOGIC INVESTIGATION PLAN
WINSTON THOMAS FACILITYAND
BENNETT'S DUMP
WESTINGHOUSE ELECTRIC CORPORATIONWASTE TECHNOLOGY SERVICES DIVISION
Task 2.1 Continuous Soil Test Boring/RockCoring 10
Task 2 . 2 - A Monitoring Well Installation/Rock 12Task 2 .2 -B Monitoring Well Installation/Soils 13Task 2.3 Data Transmit ta l 13Task 2.^ Ground-Water Sampling 13
C. Phase 3 Evaluation of Data and Submission of the On-SiteMonitorire Vieil Plan 15
i . Evaluation of Data 15Task 3.1 Evaluation of Data 15
2. Submitta! of On-Site Monitoring Well Plan 15Task 3.2 On-Site Monitoring Wel l Plan 15
III. References 17
SUPPLEMENTAL HYpROGEOLOCIC INVESTIGATION PLANWINSTON THOMAS FACILITY
I. Introduction
A. Purpose
The Consent Decree requires Westinghouse to perform a Supplemental
Hydrogeologic Investigation of the Winston Thomas Facility with the resulting
data used for selection of on-site monitoring locations for future ground-water
monitoring at the site (Paragraphs 74(a) and 75).
In accordance with Paragraph 74 of the Consent Decree, a Supplemental
Hydrogeologic Investigation Plan for the Winston Thomas Facility was
submitted to the parties of the Consent Decree within 60 days of the signing
of the Consent Decree. This Plan was submitted in combination with the
Supplemental Hydrogeologic Investigation Plan for Bennett's Dump in October
1985. In December of 1985, Westinghouse met with the parties of the Consent
Decree to review this submittal. After the December meeting, the
Environmental Protection Agency (EPA) submitted a formal review to
Westinghouse (letter to Mr. Carl Anderson from M.V. Pearce, December 3,
1985). On the basis of comments received at the meeting and in the letter,
Westinghouse agreed to resubmit the Plan and incorporate changes that would
address the issues raised by the EPA and other parties of the Consent
Decree.
A revised Winston Thomas Facility Supplemental Hydrogeologic
Investigation Plan was submitted in February, 1986 to the parties of the
Consent Decree. The revised Plan was reviewed by the parties of the
Consent Decree and comments were submitted to Westinghouse by the EPA
(April 14, 1986) and the City of Bloomington (May 13, 1986). In addition,
the parties of the Consent Decree met on May 20th, 1986 to review their
comments to this Plan and to reach agreement on the necessary revisions to
be included in this final submittal of the Supplemental Hydrogeolcgic
Investigation Plan for the Winston Thomas Facility.
B. Location and History
The Winston Thomas Sewage Treatment Plant is located in the central
portion of Monroe County. Indiana, about 2.5 miles south of Blooming ton in
the west half of the southwest quarter of Section 16, Range 1W, Township
8N. The site, approximately 26 acres, is situated in a topographically level,
north-south trending valley adjacent to Clear Creek as shown on Figure
WT-1.
The Winston Thomas Facility operated from 1933 to 1982, coinciding with
the period of Westinghouse use, 1958 to 1982. During the period that the
plant was in service, it handled the sewage waste from the City of
Bfoomington. Rant operations were discontinued in 1982 because of the
obsolescence of certain facilities. During the period of Westinghouse use,
certain facilities of the treatment plant, including the tertiary lagoon,
trickling filter, digesters, drying beds and old lagoons, became contaminated
with low levels of polychlorinated biphenyls (PCBs).
A review of the available hydrogeologic data indicated that the regional
ground-water flow is from north to south. Further field work is needed to
confirm this. Soils, while expected to be shallow, may locally be as great as
ten feet thick. Their composition may vary from silt or clay-rich residual
soils to coarser-grained stream deposits. Also, as a task of the 1982
investigation, a review of residential well logs yielded information such as
depth to water, depth to bedrock and well yield. The local bedrock and
Qwater-bearing formation is described as the Harrodsburg Limestone. This
unit is described to vary in thickness between 60 to 80 feet (1, 2) and 30 to
100 feet in Monroe County, Indiana (3). Field Investigations performed under
Task 2.1 will delineate the thickness of Harrodsburg Limestone beneath the
Winston Thomas Facility Site.
Westinghouse performed studies that include a preliminary fracture trace
analysis and review of hydrogeologic information prepared for Environ in
December of 1982 (4), and soil test borings, lagoon cores and analytical work
performed in conjunction with ongoing discussions with the City of|p
Bloomington, the EPA and the Department of Justice in 1983 and 1984.
C. Investigation Overview
The purpose of the Winston Thomas Facility Supplemental Hydrogeologic
Investigation is to review and evaluate the development of the site and the
hydrogeologic conditions, and to define the locations of on-site and off-site
monitoring wells for future ground-water monitoring, as specified in the
Consent Decree.
^f The Investigation will focus on work activities that contribute to the
understanding of the interrelationship between the site's history and
hydrogeologic setting with respect to the needs for developing the necessary
ground-water monitoring plans for this site.
The Consent Decree requires that a total of eight wells be drilled at the
Winston Thomas Facility as part of the Supplemental Hydrogeologic
Investigation. The proposed locations for these wells are shown on Figure
WT-1.
- 3 -
The selection of these locations is based on previous studies completed
by Westinghouse. and discussions with the U.S. Department of Justice and
other parties of the Consent Decree negotiation in 1981.
In addition, seven of the eight locations selected are identical to those
presented by Phillip E. LaMoreaux 6 Associates (PELA) (5) to the U.S.
Department of Justice during the development of the Consent Decree in 1981.
At this time, we have chosen to locate the eighth well on what we believe to
be a fracture trace that exists between the tertiary lagoon and Clear Creek;
the eighth location selected by PELA was nearer to the sludge drying beds.
The monitoring points selected provide for:
1. area! coverage to acquire upgradient and downgradient water-level
elevations and water quality data,
2. monitoring locations adjacent to the major source areas of existing
contamination, and
3. sufficient characterization of subsurface conditions to describe
lithology and bedrock structure.
The Supplemental Hydrogeologic Investigation described in the following
sections is a comprehensive three phase study. The proposed monitoring well
locations may be modi Tied based on the Phase 1 and Phase 2 work efforts.
The number and permanent location for the On-Site Monitoring Wells will be
se'ected on the basis of the work performed in the Supplemental
Hydrogeologic Investigation and as presented in the final work product of
Phase 3. The work schedule for the Supplemental Hydrogeologic Investigation
is set forth in Table WT-1 and a detailed description of the work tasks for
each of the three phases is presented within the following text.
II. Scope of Work for Supplemental Hydrogeologic Investigation
A. Phase 1 - Data Collection and Review
Phase 1 will begin within 14 days of approval, by the parties of the
Consent Decree, of the Supplemental Hydrogeologic Investigation Plan. Phase
1 will include: a review of the site history including construction of the
tertiary lagoon and rerouting of Clear Creek; a geology and hydrogeology
review; an evaluation of past investigations including the tertiary lagoon
coring program, berm stability evaluation, soil borings and previous analytical
results; and an aerial photography review coupled with a topographic map
study. Following these activities, a site inspection will be completed.
The goals of Phase 1 are to review the general geology and hydrogeology
of both the unconsolidated and consolidated units beneath the Winston Thomas
Facility Site, to evaluate the nature and extent of geomorphic and land use
changes that have occurred, and to assess the surface expressions of karst
features. The purpose of the review is to establish a foundation level of
understanding on-site conditions, to uncover data needs that should be
addressed in later work tasks, and to establish a framework to begin the
detailed look at the hydrogeology and ground-water quality characteristics of
the site.
At the conclusion of Phase 1, Westinghouse will also submit to the
parties of the Consent Decree, a Progress Report of the Phase 1 findings
which will also include a description of any changes/additions in the Scope of
Work or in the locations of proposed borings/corings and monitoring wells to
be completed in Phase 2.
- 5 -
Task 1.1 Geology and Hydrogeology Review
Information regarding the geology/hydrogeology near the Winston
Thomas Facility, gathered from sources such as Indiana Geological
Survey Reports, Indiana University theses and publications and
Department of Agriculture Soil Survey, will be reviewed to refine our
knowledge of the type of soils and rock units that will be encountered
during drilling activities, and pertinent characteristics of these soil and
rock units including marker beds, water bearing zones and karst
development in these units. The geology and hydrogeology will be
discussed with the technical representatives of the Consent Decree
parties and other hydrogeologists and geologists knowledgeable in local
conditions.
This task will define how to identify bedrock formation units by
marker beds or changes in lithology, and reconfirm the approximate
drilling and monitoring depths necessary for future drilling activities and
well installation. In addition, the identification of karst features such as
sinkholes, caverns and springs at or around the Winston Thomas Facility
may aid in the delineation of ground-water flow directions and solution
feature trends which may affect flow directions and, therefore, may be
an additional consideration in the placement of Phase 2 borings/corings
and monitoring wells.
In addition, Westinghouse has completed a well user survey that
includes the area around the Winston Thomas Facility. This summary
identifies the location, by street address, of active or inactive water
wells in the area. The well logs gathered in support of the survey will
be reviewed and may be useful in determining additional information
about ground-water characteristics around the site.
- 6 -
Task 1.2 Review of Previous Subsurface and Analytical Investigations
Both Westinghouse and the EPA have conducted prior studies at the
Winston Thomas Facility. Westinghouse has performed studies to
determine the contamination in the trickling filter by sampling and
analyzing the trickling filter rocks. In addition, a total of 15 cores
were taken in the tertiary lagoon to verify the existence of the clay
liner and estimate the extent of PCB migration into this liner by
molecular diffusion. Also, ten borings were drilled by Westinghouse to
determine the location and size of the former sludge lagoons and their
PCB content. Primarily these early studies were performed to quantify
the waste areas in size and PCB content for future remediation
activities.
Other soil investigations have addressed the stability of the berm
surrounding the tertiary lagoon (6) . This study included eight borings,
cross sections and evaluations. A review of these past soil
borings/lagoon corings and any resultant analytical efforts may provide a
data base for the characteristics of the unconsolidated units and for the
potential for contaminant migration into these units.
Data from this review that is determined to be relevant to the
investigation will be included in the Phase 1 Progress Report.
Task 1.3 Aerial Photograph Analysis, Review of Construction Drawings
and Topographic Maps
Aerial photographs, construction drawings and topographic maps
will be reviewed to delineate any geomorphic features such as
- 7 -
pre-tertiary lagoon construction drainage patterns of Clear Creek and
any karst features, especially fracture traces, sinkholes, springs and
seepage areas.
This aerial photograph analysis will include and incorporate past
studies completed by Westinghouse (U) and the EPA (7).
In conjunction with the aerial photography analysis, the topographic
review will demarcate areas of both natural and man-made landform
changes. Engineers' construction drawings developed for constructing
the plant and its modifications, including the construction of the tertiary
lagoon, will be reviewed and evaluated in this work task.
This work task will be utilized to establish an historical perspective
of the Winston Thomas Facility Site, to add to our data base for site
characterization, and to re-affirm the placement of Phase 2
borings/cor ings and monitoring wells.
Task 1.3 Site Reconnaissance
A field reconnaissance of the Winston Thomas Facility Site and
immediate surroundings will be performed to identify physical features
and access limitations that may influence drilling locations. Also the
verification of features delineated in the aerial photography review,
topographic map review and literature review will be completed in this
work task. The emphasis of the site reconnaissance will be to identify
drilling access limitations and karst features such as springs, sinkholes,
swallow holes and seeps which may influence boring/coring or monitoring
well placement.
The area to be covered by this site inspection is outlined on Figure
WT-1.
Task 1.5 Phase 1 Progress Report
A Progress Report summarizing the results of Phase 1 will be
generated and sent to the parties of the Consent Decree within 15 days
upon completion of the Phase 1 work tasks. The Report will also include
any modifications to the Scope of Work described herein for Phase 2.
Additionally, the Report will include the following:
a. A description of any changes in the proposed boring/coring
and monitoring well locations, and rationale for these changes.
b. A section on background geology and hydrogeology.
c. A section on past work and applicability to the Supplemental
Hydrogeologic Investigation Plan.
d. A section on the aerial photography, construction drawing
review and the topography study.
e. A complete reference list of items b. through d. above. The
documents/data cited in this reference list will be made
available if requested by any of the parties of the Consent
Decree.
f. A discussion of the approach to the selection of which sites
will be cored in the Phase 2 work program and how the coring
data will be utilized to locate monitoring wells or additional
coring locations will be supplied.
If requested, Westinghouse will be available to meet to review or
discuss the findings of the Progress Report with selected representatives
of the Consent Decree parties prior to beginning Phase 2.
Within seven days of receiving comments from the parties of the
Consent Decree on the Phase 1 Progress Report, Westinghouse will begin
the Phase 2 Work Program.
- 9 -
B. Phase 2 - Site Investigations
1. General
Phase 2 is primarily a field program of drilling and sampling in both the
soil and the rock units located at the Winston Thomas Facility. The rock core
holes will be utilized as temporary wells to initiate the measurement of
site-specific hydrogeologic data and to confirm future monitoring well sites.
The primary goals of Phase 2 are: to evaluate the stratigraphy in the
immediate vicinity of the Winston Thomas Facility; to evaluate the
hydrogeologic characteristics including ground-water flow direction,
ground-water gradients. water bearing zones, and permeability
characteristics; and to assess and confirm the Phase 1 and Phase 2 task
results for installing monitoring wells at their described locations.
Ground water will be sampled and analyzed as described below in Task
2.4 after all the monitoring wells are installed in Task 2.3 of Phase 2.
2. Reid Investigations
Task 2.1 Continuous Soil Test Boring/Rock Coring
A continuous profile of soil and bedrock will be sampled from
ground surface to an approximate depth of 60 feet; or to the base of the
Harrodsburg Limestone at each boring/coring location. The work
completed in Task 1.1 should define how to identify the base of the
Harrodsburg Limestone.
The borings/corings will be located at no less than five of the eight
proposed monitoring well locations.
- 10 -
This work will be completed in steps such that information from
these borings/corings will be utilized to assess whether additional
borings/corings are necessary to define the site's stratigraphy or the
relocation of any monitoring wells.
In the unconsolidated deposits, continuous split-spoon sampling will
be employed according to ASTM Standards and Procedures outlined in
Appendix A, Drilling/Sampling Protocol for Soil Borings. In the
consolidated rock units, continuous coring will be employed following
ASTM Standards and Procedures outlined in Appendix B, Drilling/
Sampling Protocol for Rock Coring. A geologist will be on site to ensure
these protocols are being followed and to describe, in detail, the soil
and rock units encountered. The unconsolidated unit description will
include the following: soil type, grain size, color and water content.
The rock core will be inspected by the geologist and logs prepared to
include the following: rock type, color, grain size, fossils, density,
and core loss. Cores will be stored in plastic sleeves in core boxes
until they are no longer needed.
At each coring location, the core hole will be utilized as a
temporary observation well. Therefore, to ensure the integrity of this
temporary system for the collection of hydrogeologic data, it may be
necessary to install a temporary surface casing.
Each core hole will be gamma ray logged according to methods found
in Appendix C, Gamma Ray Logging Protocol. The gamma ray logs will
be compared to the detailed lithologic coring logs and a correlation of
gamma ray readings with lithology will be prepared. Future holes that
are not cored will be gamma ray logged and the core hole/gamma ray
- 11 -
correlation data will be used to extend the understanding of site wide
lithology. Gamma ray results will be presented in the Phase 3 Report.
Also, at one interval in each corehole, a Packer Test or other
applicable test will be performed to assess the permeability
characteristics of the rock formations. If more than one productive flow
system is encountered during the coring operation, additional tests may
be required. The Packer Test will follow procedures outlined in
Appendix D. Packer Test Protocol.
In addition, it is our intent to collect at least three rounds of water
levels over a 30 day interval to assess ground-water flow directions and
gradients, and assist in confirming the placement of monitoring wells.
Task 2.2-A Monitoring Well Installation/Rock
This task will include the installation of at least eight monitoring
wells in the proposed locations as shown on Figure WT-1. These
monitoring wells may include the construction of one or more of the
temporary observation wells installed at the coring locations if these
temporary wells are at the necessary depths and the cored hole is
suitable to be a proper and durable monitoring well. The installation of
additional monitoring wells will follow procedures outlined in Appendix E,
Drilling Protocol for Open Hole Monitoring Well Completion. At each
additional well installation that is not at the location of a core hole
drilled during Phase 2. a gamma ray log and/or caliper log will be
performed according to Appendix C, Gamma Ray Logging Protocol, and
Appendix F, Caliper Logging Protocol.
- 12 -
Task 2.2-B Monitoring Well Installation/Soils
If water bearing units are encountered within the unconsolidated
deposits during the course of drilling the soil borings, Westinghouse may
recommend the installation of monitoring wells in these units. These
monitoring wells will be installed by methods outlined in Appendix C,
Drilling Protocol for Monitoring Well Completion In Soils.
Task 2.3 Data Transmittal
Upon completion of monitoring well installations, Westinghouse will
provide to the parties of the Consent Decree a plot plan showing the
locations of core holes and monitoring wells, coring and drilling logs,
geophysical logs, water level elevations, a ground-water quality sampling
schedule and a written description of any changes made to the
Supplemental Hydrogeologic Investigation Plan.
If requested, Westinghouse will be available to meet to review or
discuss the information described above with selected representatives of
the Consent Decree.
Task 2.H Ground-Water Sampling
After all monitoring wells are installed, they will be sampled
according to the schedules stated in Table 3, Exhibit 13 of the Consent
Decree. Westinghouse will sample and analyze the ground water on a
quarterly basis over one hydrologic cycle. The water quality analytical
results will be forwarded to the parties of the Consent Decree on a
timely basis.
- 13 -
The intervals between sampling will be no less than 88 days and no
more than 92 days. Upon the completion of the required year of
monitoring (four rounds), Westinghouse will evaluate which of the
monitoring wells will be On-Site Monitoring Wells and submit a Plan
supporting these selections.
Ground water will be sampled according to the Ground-Water
Sampling Protocol, found in Appendix H. All ground water will be
analyzed for PCBs in accordance with the requirements of "Test Methods
for Evaluating Solid Waste: Physical/Chemical Methods. EPA SW846, 2d,
ed. July 1982" as specified in the Consent Decree (Paragraph 71a).
At each of the four rounds of sampling, within 60 days.
Westinghouse will submit to the parties of the Consent Decree the
following data for each well sampled:
a. water level
b. temperature
c. pH
d. snecifir conductance
e. PCB analytical results
f. water table elevation contour map.
The field measurements, water level, temperature, pH and specific
conductance will be recorded on a data sheet similar to Attachment 3 of
the Ground-Water Sampling Protocol, in Appendix H. The analytical
results will be presented in table form. The water table elevation
contour map will be constructed and submitted on the Winston Thomas
base map.
C. Phase 3 - Evaluation of Data and Submission of the On-Site Monitoring
Well Plan
1. Evaluation of Data
Task 3.1 Evaluation of Data
At the conclusion of Phase 2 work efforts, including the one year
of ground-water data collection, an evaluation will be made to determine
if there has been a sufficient characterization of the hydrogeology to
proceed with the On-Site Monitoring Well Plan. In this evaluation,
comments received from the parties of the Consent Decree at the end of
Phase 1 and Task 2.3 will be incorporated.
If upon completion of this evaluation, Westinghouse determines that
additional information is required, Westinghouse will notify the parties of
the Consent Decree and inform them of the Scope of Work that will be
required and a time schedule for its completion. If, however, sufficient
data is available to select the on-site monitoring wells then the Plan will
be submitted as described in Task 3.2.
2. Submittal of On-Site Monitoring Well Plan
Task 3.2 On-Site Monitoring Well Plan
Within 90 days of completion of the Winston Thomas Facility
Supplemental Hydrogeologic Investigation, Westinghouse will submit a
Plan for approval by the parties of the Consent Decree designating the
location of on-site monitoring wells.
- 15 -
The On-Site Monitoring Well Plan will include:
a. A presentation of the work efforts performed during the
Supplemental Hydrogeo.ogic Investigation.
b. Detailed well logs of Phase 2 wells, borings and corings.
c. Geophysical logs.
d. The results of the permeability testing.
e. Ground-water analytical results.
f. Ground-water elevation contour maps.
g. Geologic cross sections.
h. A map locating the monitoring wells to be utilized as the
On-Site Monitoring Wells and the justification for locating the
wells as recommended.
i. Procedures for well abandonment and well replacement.
j. The selection of dedicated sampling devices.
- 16 -
III. References
1. Gates, C.R., Geologic Considerations in Urban Planning for Bloomington,Indiana, Indiana Department of Conservation, Geologic Survey, Report ofProgress 25, 1962. p. 6, Table.
2. Perry, T.G., Indiana Department of Conservation, Geological Survey,Guidebook #7, 1954. Plate 1.
3. Shaver, R.H., et al., 1970. Indiana Department of Natural Resources,Geological Survey, Bulletin 43, pg. 70.
4. Letter from George W. Lee, Jr. to Environ. Geological Investigation andSelection of Monitoring Well Locations - Winston Thomas Treatment Plant,December 30, 1982.
5. P.E. LaMoreaux and Associates. Hydrogeologic studies and Monitoringas a Requirement for the Consent Decree, Winston Thomas Plant,prepared for the U.S. Department of Justice, April 24, 1984.
6. Clemence, S.P. Report on Stability Analysis of Winston ThomasTreatment Plant - Tertiary Lagoon Embankment, July 24, 1984.
7. Powell, R.L. Winston Thomas Treatment Plant, Enlargement of photo67-18-378, October 2, 1984.
At each coring location, the resultant core hole will be utilized as a
temporary observation well. Therefore, to ensure the integrity of this
temporary system to collect hydrogeologic data, it may be necessary to
install a temporary surface casing.
Each core hole will be gamma ray logged upon completion of the
coring according to methods found in Appendix C, Gamma Ray Logging
Protocol. These gamma ray logs will be compared to the detailed
lithologic coring logs and a correlation of gamma ray readings with
lithology will be prepared. Future holes that are not cored will be
gamma ray logged and the core hole/gamma ray correlation data will be
used to extend the understanding of site-wide lithology. Gamma ray
results will be presented in the Phase 3 Report.
Also, at one interval in each corehole, a Packer Test or other
applicable test will be performed to assess the permeability
characteristics of the rock formations. If more than one oroductive
fracture system is encountered at a coring location, more Packer Tests
or permeability tests may be required. The Packer Test will follow
procedures outlined in Appendix D. Packer Test Protocol.
In addition, it is our intent to collect at least three rounds of water
levels over a 30 day interval to assess ground-water flow directions and
gradients and assist in confirming the placement of monitoring wells.
- i2 -
Task 2.2-A Monitoring Well Installation/Rock
This task will include the installation of at least four monitoring
wells in the proposed locations as shown on Figure BD-1. These
monitoring wells may include the construction of one or more of the
temporary observation wells installed at the coring locations, if these
temporary wells are at the necessary depths and the cored hole is
suitable to be a proper and durable monitoring well. The installation of
additional monitoring wells will follow procedures outlined in Appendix E,
Drilling Protocol for Open Hole Monitoring Well Completion. At each
additional well installation that is not at a location of a rock core drilled
during Phase 2, a gamma ray log and/or caliper log will be performed
according to Appendix C, Gamma Ray Logging Protocol and Appendix F,
Caliper Logging Protocol.
Task 2.2-B Monitoring Well Installation/Soils
If water bearing units are encountered within the unconsolidated
deposits during the course of drilling soil test borings, Westinghouse
may recommend the installation of monitoring wells in these units. These
monitoring wells will be installed by methods outlined in Appendix G,
Drilling Protocol for Monitoring Well Completion In Soils.
Task 2.3 Data Transmittal
Upon completion of monitoring well installations, Westinghouse will
provide to the parties of the Consent Decree a plot plan showing the
locations of core holes and monitoring wells, coring and drilling logs,
gamma ray logs, water level elevations, a ground-water quality sampling
schedule and written description of any changes made to the
Supplemental Hydrogeologic Investigation Plan.
- 13 -
If requested, Westinghouse will be available to meet to review or \
discuss the information described above with selected representatives of
the Consent Decree.
Task 2.1 Ground-Water Sampling
After all monitoring wells are installed, they will be sampled
according to the schedules stated in Table 3, Exhibit 13 of the Consent
Decree. Westinghouse will sample and analyze the ground water on a
quarterly basis over one hydrologic cycle. The water quality analytical
results will be forwarded to the parties of the Consent Decree on a
timely basis.
The intervals between sampling will be no less than 88 days and no
more than 92 days. Upon completion of the required year of monitoring
(four rounds), Westinghouse will evaluate which of the monitoring wells
will be the On-Site Monitoring Wells and submit a Plan supporting these
selections.
Ground water will be sampled according to the Ground-Water
Sampling Protocol found in Appendix H. All ground water will be
analyzed for PCBs in accordance with the requirements of "Test Methods
for Evaluating Solid Waste: Physical/Chemical Methods, EPA SW-846, 2d
ed. July 1982."
At each of the four rounds of sampling, within 60 days,
Westinghouse will submit to the parties of the Consent Decree the
following data for each well sampled:
a. water level
b. temperature
c. pH
d. specific conductance
- it -
e. PCB analytical results
f. water table elevation contour map
The field measurements, water level, temperature, pH and specific
conductance, will be recorded on a data sheet similar to Attachment 3 of
the Ground-Water Sampling Protocol, in Appendix H. The analytical
results will be presented in table form. The water table elevation
contour map will be constructed and submitted on the Bennett's Dump
base map.
C. Phase 3 - Evaluation of Data and Submission of the On-Site Monitoring
Well Plan
1. Data Evaluation
Task 3.1 Evaluation of Data
At the conclusion of Phase 2 work efforts, including the one year
of ground-water data collection, an evaluation will be made to determine
if there has been a sufficient characterization of the hydrogeology to
proceed with the On-Site Monitoring Well Plan. In this evaluation,
comments received from the parties of the Consent Decree at the end of
Phase 1 and Task 2.3 will be incorporated.
If upon completion of this evaluation, Westinghouse determines that
additional information is required, Westinghouse will notify the parties of
the Consent Decree and inform them of the Scope of Work that will be
required and a time schedule for its completion. If, however, sufficient
data is available to select the on-site monitoring wells then the Plan will
be submitted as described below in Task 3.2.
- 15 -
?. Submittal of On-Site Monitoring Well Plan
Task 3.2 On-Site Monitoring Well Plan
Within 90 days of completion of the Bennett's Dump Supplemental
Hydrogeologic Investigation, Westinghouse will submit a Plan for approval
by the parties of the Consent Decree designating the location of on-site
monitoring wells.
The On-Site Monitoring Well Plan will include:
a. A presentation of the work efforts performed during the
Supplemental Hydrogeological Investigation.
b. Detailed well logs of Phase 2 boring/coring logs and monitoring
well logs.
c. Geophysical logs.
d. The results of the permeability testing.
e. Ground-water analytical results.
f. Ground-water elevation contour maps.
g. Geologic cross sections.
h. A map locating the monitoring wells to be utilized as the
On-Site Monitoring Wells and the justification for locating the
wells as recommended.
i. Procedures for well abandonment and well replacement.
j. The selection of dedicated sampling devices.
- 16 -
III. References
1. Gates, G.R., Geologic Considerations in Urban Planning for Bloomington,Indiana, Indiana Department of Conservation, Geologic Survey; Report ofProgress 25; i962. p. 6, Table.
2. Perry, T.G., Indiana Department of Conservation, Geological Survey,Guide Book #7 1954, Plate 1.
3. Powell, R.L. Caves of Indiana, Indiana Department of Conservation,Geological Survey, Circular No. 8, 1961.
4. P. E. LaMoreaux and Associates. Hydrogeologic Studies and Monitoringas a Requirement for the Consent Decree, Bennett's Dump. Preparedfor the U.S. Department of Justice, April 24, 1984.
5. Environmental Protection Agency. On Scene Coordinator's Report CERLAImmediate Removal Project No. 68-95-0076, Bennett's Quarry,Bloomington, Indiana, Appendix S, June, 1983.
6. STS Consultants Ltd. Laboratory Testing with Regard to the Bennett'sQuarry Project near Bloomington, Indiana, August 19, 1983.
7. Environmental Protection Agency. On Scene Coordinator's Report CERLAImmediate Removal Project No. 68-95-0076, Bennett's Quarry,Bloomington, Indiana, Appendix W, 1983.
8. Geosight. A Geophysical Survey at Bennett's Quarry, July 24, 1983.
9. Liang, Ta. Bennett's Quarry, Indiana, Air Photo Interpretation,5/29/84.
10. Powell, R.L. Preliminary Map of Bennett's Quarry Site Showing Types ofDisturbed Ground Interpreted From Aerial Photographs, February 20,1984.
- 17 -
TABLESBLASLAND & BOUCK ENGINEERS. P.O.
mCO
TABLE BD--I
PROJECT SCHEDULE
BENNETT'S DUMPSUPPLEMENTAL HYDROGEOLOGIC INVESTIGATION PLAN
WEEKS20 24 28 32 36 4O 48 52 56 60 64 66 72 76 80
PHASE I
REVIEW
TASK 1.4 -SITE RECONNAISSANCE.
TASK 1.5 -PHASE I REPORT -
PHASE 2
TASK 2.1 -SOIL BORING / ROCK CORING .
TASK 2.2 - MONITORING WELL INSTALLATION/ROCK a SOILS
tions. The supervising geologist will be responsible for retaining a repre-
sentative portion of each sample in a one pint glass jar labeled with 1) site,
2) boring number, 3) interval sample/interval period, 4) date, 5) time of
sample collection, and 6) sampling personnel. A standard log form is found
in Attachment 2.
The Drilling Contractor will be responsible for obtaining accurate and
representative samples, informing the supervising geologist of changes in
drilling pressure and loss of circulation, and keeping a separate general log
of soils encountered including blow counts (i.e., the number of blows from a
soil sampling drive weight (140 pounds) required to drive the split spoon
sampler in 6-inch increments).
A field survey control program will be conducted using standard instru-
ment survey techniques to document boring location and elevation.
2 of 2
II. Equipment Decontamination
Equipment decontamination will occur between each separate work site.
All drilling equipment and associated tools including augers, drill rods,
sampling equipment, wrenches and any other equipment or tools that may
have come in contact with contaminated materials shall be decontaminated
using high pressure steam cleaning equipment using a controlled water source
followed by a dilute solvent rinse and controlled water rinse. We propose
that the control water source will be from the City of Bloom ing ton Municipal
Water Supply acquired at the Westinghouse Plant on Curry Pike in
Bloomington. The water will be sampled and analyzed for PCBs prior to use
as a control water source.
The drilling equipment will be decontaminated for each boring in an area
designated by the supervising geologist. No equipment will leave a drilling
site at any time without first being decontaminated as described above unless
otherwise specified in the field by the geologist.
ATTACHMENT 1OF
APPENDIX A
1 of 6
Designation: O 1SS6 - 84
Standard Method forPENETRATION TEST AND SPLIT-BARREL SAMPLING OF
SOILS1
TIM
frrmvhr •cnvin if ike O.TW
tttevearof
1. Scope
1.1 This method describes the procedure, gcn-eratty known as the Standard Penetration Test(SPT). for driving a split-barrel sampler to obtaina representative soil sample and a measure of them*p*nrf of the soil to penetration of the sam-pler.
1.2 This standard may involve hazardous ma-terials, operations, and equipment. This standarddoes not purport to address all of the safety prob-lems associated *rith its use. It is the responsibil-ity of whoever uses this standard to consult andestablish appropriate safety and health practicesand determine the applicability of regulatory limi-tations prior to use. For a specific precautionaryoaie-ier'., see 5.4.1.
1.3 The values stated in inch-pound units areto be regarded as the standard.
2. Applicable Doounents
2.1 ASTMStandards:O2487 Test Method Tor Classification of Soils
for Engineering Purposes7
D2488 Practice for Description and Identifi-cation of Soils (Visual-Manual Procedure)1
D4220 Practices for Preserving and Trans-porting Soil Samples'"
3. Dcscrip«io«ts of Terms Specific lo This Stand-ard
). I a-ivil—that portion of t^e dnvc-wcight as-sembly which the hammer stakes and throughwhich the hammer energy passes into the drillrods
3 2 cuthnni—ihc routine drum or windlassm (he rope-cathead lift svsicm jround which theoperator wraps a rope :o lift and Jfop ;l>
<nrfrwrWybrfcB**«/Ar000Mri.4
mer by successively tightening and loosening therope turns around the drum.
3 J drill rods—rods used to transmit down-ward force and torque to the drill bit while drill-ing a borehole.
3.4 drive-weight assembly—a device consist-ing of the hammer, hammer faD guide, the anvil,and any hammer drop system.
3.5 hammer—that portion of the drive-weightassembly consisting of the 140 ± 2 Ib (63.5 ± Ikg) impact weight which is successively lifted anddropped to provide the energy that accomplishesthe sampling and penetration.
3.6 hammer drop system—that portion of thedrive-weight assembly by which the operator ac-complishes the lifting and dropping of the ham-mer 10 produce ihc i>«ow. - - -
3.7 hammer fall guide—that part of the drive-weight assembly used to guide the fall of thehammer.
3.8 N-value—the blowcount representation ofthe penetration resistance of the soil. The N-value. reported in blows per foot, equals the sumof ihc number of blows required to drive thesampler over the depth interval of 6 to 18 in.(150 to 450 mm) (see 7.3).
3.9 ±N—the number of blows obtained fromeach of the 6-in. (150-mm) intervals of samplerpenetration (sec 7.3).
3.10 niimhcr uf ntpc I urns—the total contactangle between the rope and the cathead at the
1 I hiv nH1ht*l i untJcr life- tuir«*l*1i«**i id \N I M ( '••ni
I). IX IM V«l antl K.«A jml IN life- iliftxl ro^»«i%«hil
\Aitx.-rnnnlliv OIXII} .m Vnnplinc jntl KoLn.M I Wl 1
l.rf S.«l Inn-Nl jlhinv
( un^n t i^lilttwt j|i|WtMt.il Vi« I I I^Ni l*ul*4rUKtl \*Ix ' I 'IKJ 4 HipmjIU puMrOiol JN I) I >M. - is I I j^4 |i»
«t
IVMf
2 of 6
beginning of the operator's rope slackening todrop the hammer, divided by 360* (sec Fig. I).
3.M sampling rods—rods that connect thedrive-weight assembly to the sampler. Drill rodsare often used for this purpose.
3.12 SPT—abbreviation for Standard Pene-tration Test, a term by which engineers com-monly refer to this method.
4. Significance ind Use
4.1 This method provides a soil sample foridentification purposes and for laboratory testsappropriate for soil obtained from a sampler thatmay produce large shear strain disturbance in thesample.
4.2 This method is used extensively in a greatvariety of geotechnical exploration projects.Many local correlations and widely publishedcorrelations which relate SPT blowcount, or A/-value, and the engineering behavior of earth-works and foundations are available.
5. Apparatus
S.I Drilling Equipment—Any drilling equip-ment that provides at the time of sampling asuitably clean open hole before insertion of thesampler and ensures that the penetration test isperformed on undisturbed soil shall be accepta-ble. The following pieces of equipment haveproven to be suitable for advancing a boreholein some subsurface conditions.
"'5.1.1 Drag. Chopping, and Fisntail Bits, i£ssthan 6.5 in. (162 mm) and greater than 2.2 in.(56 mm) in diameter may be used in conjuctionwith open-hole rotary drilling or casing-advance-ment drilling methods. To avoid disturbance ofthe underlying soil, bottom discharge bits are notpermitted: only side discharge bits are permitted.
5.1.2 Roller-Cone Bits, less than 6.5 in. (162mm) and greater than 2.2 in. (56 mm) in diam-eter may be used in conjunction with open-holerotary drilling or casing-advancement drillingmethods if the drilling fluid discharge is deflected.
5.1.3 Hollow-Stem Continuous Flight Augers,with or without a center bit assembly, may beused to drill the boring. The inside diameter ofthe hollow-stem augers shad be (ess than«6.5 in.(162 mm) and greater than 2.2 in. (56 mm).
5.1.4 Solid. Continuous Flight. Bucket andI land Augers, less than 6.5 in. (162 mm) andgreater than 2.2 in. (56 mm) in diameter may heused if the soil on (he side of (he boring docs not
01586
cave onto the sampler or sampling rods duringsampling.
5.2 Sampling Rods—Rush-joint steel drillrods shall be used to connect the split-barrelsampler to the drive-weight assembly. The sam-pling rod shall have a stiffness (moment of iner-tia) equal to or greater than that of parallel wall"A" rod (a steel rod which has an outside diam-eter of IV« in. (41.2 mm) and an inside diameterof P/i in. (28.5 mm).
NOTE I—Recent research and comparative testingindicates the type rod used, with stiffness ranging from"A" size rod to ~N~ size rod. will usually have anegligible effect on the Af-valucs to depths of at least100 ft (30m).
5.3 Spill-Barrel Sampler—The sampler shallbe constructed with the dimensions indicated inFig. 2. The driving shoe shall be of hardened steeland shall be replaced or repaired when it becomes
. dented or distorted. The use of liners to producea constant inside diameter of IV« in. (35 mm) ispermitted, but shall be noted on the penetrationrecord if used. The use of a sample retainer basketis permitted, and should also be noted on thepenetration record if used,
Nore 2—Both theory and available test data suggestthat Af-valucs may increase between 10 to 30 % whenliners are used.
5.4 Drive- Weight Assembly:5.4.1 Hammer and Anvil—The hammer shall
weigh 140 ± 2 Ib (63.5 ± I kg) and shall be a~c!id rigid rtiet&!'*e ms^s. Tie hammcrchaK^jtirkethe anvil and make steel on steel contact when itis dropped. A hammer fall guide permitting afree fall shall be used. Hammers used with thecathead and rope method shall have an un-impeded ovcrlift capacity of at least 4 in. (100mm). For safety reasons, the use of a hammerassembly with an internal anvil is encouraged.
NOTE 3—It is suggested that the hammer fall guidebe permanently marked to enable the operator or in-spector to judge (he hammer drop height.
•5.4.2 Hammer Drop System—Rope-cathead,trip, semi-automatic, or automatic hammer dropsystems may be used, providing the lifting appa-ratus will not cause penetration of the samplerwhile re-engaging and lifting (he hammer.
5.5 Accessory Kqtiipment—Accessories suchas labels, sample containers, data'sheets, andground water level measuring devices shall be pro-vided in accordance with the requirements of theproject and other ASTM standards.
3 of 6
6.1 The bonne shall be advanced incremen-taly to fx/iiiii uuuuiittent or continuous sun*pfing. Test intervals and locations are normallysojpotated by the project engineer or geologist.Typically, the intervals selected are 5 ft (IJ mm)or less in homofcneom strata with test and sam-pfing locations at every change of strata.
62 Any drilling procedure that provides asuitably dean and stabfc hole before insertion ofthe sampler and as&tuu that the pencil juon testa performed on essentially undisturbed soil shallbe atrrptauk. Each of the following procedureshave proven to be acceptable for some subsurface
The subsurface conditions antici-paanrl should be considered when sclccuug thedrifing method to be used.
The process of jetting tluuughan open lube sampler and then sampfing wheuthe desired depth is reached shaH not be permit-ted. The continuous flight soGd auger methodshafl not be used for advancing the boring bdowa water table or below die upper jvM"**ting bedof a confined non-cohesive stratum that is underartesian pressure. Casing may not be advancedbelow the sampling elevation prior tovtmpting.Advancing a ho"ng with bottom /f**f*MHf bitsis not permissible. It b not permissible to advancethe boring for subsequent insertion of the sam-pler solely by means of previous qmpfing withthe SPT sampler.
6.4 The drilling fluid levd within the boringor hollow-stem augers shall be maintained at orabove the in shn grouodwater levd at all timesduring drifting, removal of drill rods, and sam-pling.
7. Saaipung and Testing Procedure
7.1 After the boring has been advanced to thedesired sampling devation and excessive cuttingshave been removed, prepare for the test with thefollowing sequence of operations.
7.1.1 Attach the split-barrel sampler to thesampling rods and lower into the borehole. Do
01566
not allow the sampler to drop onto the soil to be
7.12 Position the hammer above and attachthe anvil to the top of the sampling rods. Thismay be done before the sampfing rods and sam-pler are lowered into the borehole.
7.13 Rest the dead weight of the sampler,rods, anvil, and drive weight on the bottom ofthe boring and apply a seating blow. If excessivervMing* are encountered at the bottom of theboring, remove the sampler and sampling rodsfrom the boring and remove the cuttings.
7.1.4 Mark the drill rods in three successive6-in. (0.15-m) increments so that the advance ofthe sampler under the impact of the hammer canbe easily observed for each 6-in. (0.15-m) incre-ment.
72 Drive the sampler with blows from the140-tb (63.5-kg) hamnn-r and count the numberofblows applied in each 6-in. (0.15-m) incrementuntil one of the following occurs:
72.1 A total of 50 blows have been appliedduring any one of the three 6-in. (0.13-m) incre-ments described in 7.1.4.
722 A total of 100 blows have been applied.72J There is no observed advance of the
sampler during the application of 10 successiveblows of the hammer.
72.4 The sampler is advanced the complete18 in. (0.45 m) without the limiting blow countsoccurring as described in 72.1. 722, or 723.
7 J* Rreord the aumbec of Hows m^uicrl A) • „•effect each 6 ux (0.15 m) of penetration or frac-tion thereof. Toe first 6 in. is considered to be aseating drive. The sura of the number of blowsrequired for the second and third 6 in. of pene-tration is termed the "standard penetration re-sistance", or the "Af-value". If the sampler isdriven less than 18 in. (0.45 m). as permitted in7.2.1, 7.22, or 72J. the number of blows pereach complete 6-in. (O.I5-m) increment and pereach partial increment shall be recorded on theboring log. For partial increments, the depth ofpenetration shall be reported to the nearest I in.(25 mm), in addition to the number ofblows. Ifthe sampler advances bdow the bottom of theboring under the stalk weight of the drill rods orthe weight of the drill rods plus the static weightof the hammer, this information should be notedon the boring log.
7.4 The raising and dropping of the 140-lb
4 of 6
(63.5-kg) hammer shall be accomplished usingeither of the following two methods:
7.4.1 By using a trip, automatic, or semi-au-tomatic hammer drop system which lifts the 140-Ib (63.5-kg) hammer and allows it to drop 30 ±1.0 in. (0.76 m ± 25 mm) unimpeded.
7.4.2 By using a cathead to pull a rope at-tached to the hammer. When the cathead andrope method is used the system and operationshall conform to the following:
7.4.2.1 The cathead shall be essentially free ofrust, oil, or grease and have a diameter in therange of 6 to 10 in. (150 to 250 mm).
7.4^2 The cathead should be operated at aminimum speed of rotation of 100 RPM, or theapproximate speed of rotation shall be reportedon the boring log.
7.4JL3 No more than 2'/4 rope turns on thecathead may be used during the performance ofthe penetration test, as shown in Fig. 1.
NOTE 4—The operator should generally use eitherI V« or 2'/4 rope turns, depending-upon whether or notthe rope comes off the top (1% turns) or the bottom(2'/4 turns) of the cathead. It b generally known andaccepted that 2% or more rope turns considerablyimpedes the fall of the k**n*nfr mmf should not be ^f^dto perform the test. The r****"*'* rope should be main-tained in a relatively dry, r*f«n. and unfrayed condition.
7.4.2.4 For each hammer blow, a 30-in. (0.76-m) lift and drop shall be employed by the oper-ator. The operation of pulling and throwing therope shall be performed rhythmically withoutholding the rope at ihe top of the stroke: '
7.5 Bring the sampler to the surface and open.Record the percent recovery or the length ofsample recovered. Describe the soil samples re-covered as to composition, color, stratification,and condition, then place one or more repre-sentative portions of the sample into scalablemoisture-proof containers (Jars) without ram-ming or distorting any apparent stratification.Seal each container to prevent evaporation of soilmoisture. Affix labels to the containers bearingjob designation, boring number, sample depth,and the blow count per 6-in. (0.15-m) incrementProtect the samples against extreme temperaturechanges. If there is a soil change within thesampler, make a jar for each stratum and noteits location in the sampler barrel.
8. Report
8.! Drilling information shall be recorded inthe field and shall include the following:
D1586
8.1.1 Name and location of job.8.1.2 Names of crew,8.1.3 Type and make of drilling machine,8.1.4 Weather conditions.8.1.5 Date and time of start and finish of
boring,8.1.6 Boring number and location (station
and coordinates, if available and applicable),8.1.7 Surface elevation, if available,8.1.8 Method of advancing and cleaning the
boring,8.1.9 Method of keeping boring open,8.1.10 Depth of water surface and drilling
depth at the time of a noted loss of drilling fluid,and time and date when reading or notation wasmade,
8.1.11 Location of strata changes,8.1.12 Size of casing, depth of cased portion
of boring,8.1.13 Equipment and method of driving
sampler,8.1.14 Type sampler and length and inside
diameter of barrel (note use of liners),8.1.15 Size, type, and section length of the
sampling rods, and8.1.16 Remarks.8.2 Data obtained for each sample shall be
recorded in the field and shall include the follow-ing:
8.2.1 Sample depth and, if utilized, the samplenumber,
32.2 Description of soil.8.2.3 Strata changes within sample,8.2.4 Sampler penetration and recovery
lengths, and8.2.5 Number of blows per 6-in. (O.I5-m) or
partial increment
9. Precision and Bias
9.1 Variations in N-values of 100 % or morehave been observed when using different stand-ard penetration test apparatus and drillers foradjacent borings in the same soil formation. Cur-rent opinion, based on field experience, indicatesthat when using the same apparatus and driller,yV-values in the same soil can be reproduced witha coefficient of variation of about 10 %.
9.2 The use of faulty equipment, such as anextremely massive or damaged anvil, a rustycathead, a low speed cathead, an old, oily rope,or massive or poorly lubricated rope sheaves cansignificantly contribute to differences in A'-values
5 of 6
01586
obtained between operator-drill rig systems. delivered into the drill rods from the sampler and9J The variability in Af-values produced by adjitsting AT on the basa of coniparatjve energies*
different drill rigs and operators may be reduced A method Tor energy measurement and Rvalueby measuring thai pan of the hammer energy adjustment is currently under development
A+.
1 2 Operator here
Cathead
Section A-A
n 8*-
nc. i
8'«n
2V. i
«frt*N«a>crWB«»cT
Operator Here
Section 8-8
I Ihc Aaelr (w (•) C«Ihr C
i** oT
OPEN SHOE MEAD ROLLPIN
(2 at a n.diameterj
AHCDL
I 0 to 2.0 in. (25 to 50 mm)IK.Oui .10.0 in.CO.-l57 to 0.7b2 m)1.375 ±0.005 in. (34.93 ± 0 . 1 3 mm)1.50 ±0.05- 0.00 in. (38.1 t 1.3-0.0 mm)I) 10 ± 0.02 in. (2.54 ± 0.25 mm)2.1X) ± 0.05 - 0.00 in. (50.8 ± 1.3 - 0.0 mm)lh.0' to 23.0*
The I'/i in. (38 mm) inside diameter split barrel may be used with a 16-gage wall thickness split liner. The penetrating end of the drive shoe miy be slightly rounded. Metal or plasticretainer* may he used tn retain soil samples.
KIG. 2 Split-Barrel Simpler
Tlii' A nterican Society for Testing and Materials lakes no position respecting the validity of any patent rights asserted In connectionn-iih any < i cm mentioned in this standard. Users of this standard art expressly advised that determination of the validity of any suchpatent riithti. and the risk of infringement of such rights, are entirely their own responsibility.
This standard is siibjivt to wision at any time by the responsible li-chnical cummin te and must be wle^-ed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additionalstantlurds and slwuld be addressed la ASTM Headquarters. Your comments will reteive careful consideration at a meeting of the
nsihle tn-linical committee, njticl you may attend. If you feel that your comments hare nut received a fair hearing you should\tnir viewi ktwwn lit the ASTM Committee on Standards. 1916 Race St.. Philadelphia. Pa. I9IOJ.
oO
1 Of 1
SUBSURFACE LOG
Sheet of
EXPLORATION
DATE
FOR
Job No.
BORING No
RECOR
DRILL
WEATH
SAMPLE
No.
D RY
rYPE
FR
TIME
DEPTH
From To
recov.
No. OF /
BLOWS /
/N
/.
/
/
//
/y
/
y
/
/
//
//
/.
LOCATION ^
WATER TABLE
SOIL DESCRIPTION AND BORING LOG
1
REMARKS
Wifey-Fisk Form 8-10
APPENDIX BDRILLING/SAMPLING PROTOCOL FOR ROCK CORING
1 of 3
DRILLING/SAMPLING PROTOCOL FOR ROCK CORING
Bedrock test borings will be completed Uoing a wire line or vi double
tubed core barrel with an NX size core diameter in accordance with ASTM
D2113, "Standard Practice for Diamond Core Drilling for Site Investigation",
Attachment 1.
Continuous bedrock core samples will be obtained, labeled, preserved,
and classified as outlined below. These tasks will be documented upon com-
pletion in the field.
Obtaining Rock Core Samples
Prior to core barrel introduction into the hole, circulation of water will
be maintained for a short time to remove any cuttings that may clog barrel.
Drilling rods will be carefully centered to prevent core breakage. Drilling bit
pressure and water pressure will be maintained at a level consistent through-
out borings and runs will be completed without interruption so penetration
rates can be determined.
Labeling and Preserving Rock Core Samples
Core samples will be rinsed with clean water, stored in plastic sleeves
and placed within plastic sleeves in wood boxes with increasing depths aligned
left to right and core runs separated by wood blocks. Man-made breaks will
be marked with a pen across the break. Wood blocks will be labeled and
placed at the end of each core run to indicate run. A wooden spacer will be
inserted if no sample is recovered and labeled "L.C." (lost core) with cor-
responding depth. The core box will be labeled on the outside top and inside
2 of 3
lid for 1) client. 2) date, 3) job number, 4) boring number, 5) run number,
6) run interval, and 7) box number/total box number. A diagram of core
box labeling is induced in Attachment 2.
The supervising geologist will be responsible for recording rock core
mechanical and geological characteristics. The mechanical characteristics will
presence of interstitial water, 6) bedding planes or foliation, 7) minerology
and, 8) degree of crystallinity. 9) properties of joints, 10) nature of voids,
vugs, cavities, 11) hardness, 12) degree of weathering. A rock core sub-
surface log is shown in Attachment 3 and a key to the subsurface log is
shown in Attachment 4.
Documenting Reid Events
A supervising geologist will be responsible for documenting drilling
events using the daily field log provided in Attachment 5. A documentation
of drilling events will include 1) start and finish dates of drilling, 2) name
and location of job, 3) job number and client and site location, 4) sample
number and depths. 5) type and size of samples, 6) depth to water, 7) type
of drilling machine, 8) size of casing. 9) names of contractors drillers, in-
spectors or people on site and 10) weather conditions.
3 of 3
Equipment Decontamination
Equipment decontamination will occur between each separate work site.
All drilling equipment and associated tools including augers, drill rods,
sampling equipment, wrenches and any other equipment or tools that may
have come in contact with contaminated materials shall be decontaminated
using high pressure steam cleaning equipment using a controlled water source
followed by a dilute solvent rinse and controlled water rinse. We propose
that the control water source will be from the City of Bloomington Municipal
Water Supply acquired at the Westinghouse Plant on Curry Pike in
Bloomington. The water will be sampled and analyzed for PCBs prior to use
as a control water source.
The drilling equipment will be decontaminated for each boring in an area
designated by the supervising geologist. No equipment will leave a drilling
site at any time without first being decontaminated as described above unless
otherwise specified in the field by the geologist.
1 of 5
DecfeMtton: 0 2113-13
Standard Practice for
DIAMOND CORE DRILLING FOR SITE INVESTIGATION1
Tub fundard * owed under the filed devtnitioo D 2113; the number immediately foOowint uV dcxicnition rndkata the year oforifinil a<Jopoon ot. hi Ihr ate of revmon. the year of last revision. A •umber in pucnihoa radicata the year of tan icapproval.A wpencripi ' . . .• <<) iwhcMci an cdrtohi) chant* itnet the bs) frvmoo or rapproval.
1. Scop*1.1 This practice describes equipment and
procedures for diamond core drilling to securecore samples of rock and some soils that are toohard to sample by soil-sampling methods. Thismethod is described in the context of obtainingdata for foundation design and geotechnical en-gineering purposes rather than for mineral andmining exploration.
2. Applicable Documents
2.1 ASTM Standards:D1586 Method for Penetration Test and Split-
Barrel Sampling of Soils2
D1587 Practice for Thin-Walled Tube Sam-pling of Soils1
D3550 Practice for Ring-Lined Barrel Sam-pling of Soils1
3. Significance and Usej.l This puciicc is useo to obtain core sped -
mens of superior quality that reflect the in-siluconditions of the material and structure andwhich are suitable for standard physical-proper-ties tests and structural-integrity determination.
4. Apparatus
4.1 Drilling Machine, capable of providing ro-tation, feed, and retraction by hydraulic or me-chanical means to the drill rods.
42 Fluid Pump or Air Compressor, capableof delivering sufficient volume and pressure forthe diameter and depth of hole to be drilled.
4.3 Core barrels as required:4.3.1 Single Tube Type. H'G Design, consist-
ing of a hollow steel tube, with a head at one endthreaded for drill rod, and a threaded connectionfor a reaming shell and core bit at the other end.A core lifter, or retainer located within the core
bit is normal, but may be omitted at the discre-tion of the geologist or engineer.
4.3.2 Double Tube. Snivel-Type. WG De-sign—An assembly of two concentric steel tubesjoined and supported at the upper end by meansof a ball or roller-bearing swivel arranged topermit rotation of the outer tube without causingrotation of the inner tube. The upper end of theouter tube, or removable head, is threaded fordrill rod. A threaded connection is provided onthe lower end of the outer tube for a reamingshell and core bit. A core lifter located within thecore bit is normal but may be omitted at thediscretion of the geologist or engineer.
4.3.3 Double-Tube. Swivel-Type. HT Design.is essentially the same as the double tube, swivel-type, WG design, except that the WT design hasthinner tube walls, a reduced annular area be-tween the tubes, and takes a larger core from thesame diameter bore hole. The core lifter b locatedwithin the core bit.
4.3.4 Double Tube. Snivel Type. WM Design. "is similar to the double tube, swivel-type, WGdesign, except that the inner tube is threaded atits lower end to receive a core lifter case thateffectively extends the inner tube well into thecore bit, thus minimizing exposure of the core tothe drilling fluid. A core lifter is contained withinthe core lifter case on the inner tube.
4.3.5 Double Tube Swivel-Type. Large-Di-ameter Design, is similar to the double tube,swivel-type, WM design, with the addition of a
1 This practice is under the jurisdiction of ASTM CommitteeD-IS on Soil and Rock and B the direct rejpoosbitity ofSubcommittee DI8.02 on Sampfaf and Related Field Teflincfor Soil Invcaiaatiom.
Current edition approved June 24, 19*3. Pubtnhol August1983. Onpnally pufabihcd is D 2113-67T. Lan previous tOt-bOflD2ll3-70(r9?6)
' Annual Bool, of ASTM Slander*. Vol 04.0*
325
2 of 5
).2.aad3aretaait
Co» Dt*
tides, inserted withhard need with vai
O> 02113
to coBttol Bwid flow, M aB OMU approved by meand me addition of • stadgf tuiicl. BIT of tome bits we shown m INK I.
lo catch heavy aromas, OB the two bifler toes.The mnje-dJimetrr design doable tabe, swiveltype, con barrels an inaiataf • three core perhole<im»B*ows:2*iB-(69.l5Bim)by3*m, (91.43 •»). 4 in. (101.6 BUR) by 5% in.(139.7 mm). and 6 m. (152.4 BUB > by 7* in.(196.15 Bun). Thea* BX is geacraBy reserved forvery detaied arastigaavr work or where otherOK thuds do aot yield adeoaate recovery.
4.3.6 0cwMr Twtx. Swti-Tjpe. Rtirinablf lacinc aaatehah. or fanotbed blaak, alas appro.ln*er-T*bf Method, in which the corc-toden in- priate to the fbnaatiao beta* cored,•CT-tnbc asseabry B fcirkocd to the turfxt and 4.7 CoreL&m— CorebAenofthcspbt-nncan empty uweMabe aauiibly retareed to the typt. cither pten or hard4Hed.shaB be furnishedface of the borehole through the natchint. brye- and maintained, along with core-lifter cases orborr dril rods wMhoat aeed for withdrawal and raacr-tabe mcasiotts or •aeMabe tfion, inupl animal of thcdrJ rods in the borehole. The good condition- Basket or finger-type afters, to-
WH|I peaiovabK cove BAcr case aad core bncr at the job and avaaable lor me win t^m* • i«w« banclooccBdandaicaMvabki*aer-taoehead.swr«ei if so directed by the teotopg or t aajapcr.beaha(,siis|>ea9nadj0tiMa«,aadlucbn«de' 4.S CaangLvice with ideate aMcbaafsnoa the opposite end. 4.1.1 Ornr fife or Drive Ctsmg. shaD beThe iaacr-«abe bochiat device hxksiato a com- suadaid weight (scfaedak 40). extra-heavypknemary recess • the wal of the outer tube (schedule 901 doabk extra-heavy (scfaedak 160)sacfa that the oaacr tabe atay be rotated without pipe or W^fctjtii Oash-jout rasing as n<piiicdT^KTT^ ITU lltfta f I T 1m"fT ^Aft T*"1 P ** ^HT1 |»y jhf ynyr qflfaf q«T«batltff Or thf |Hn T IHTHl
the laufa may be arnatcd and the mner-tnbe meihod. Drive pipe or W-desien casing shaO beasKmbt) transported by appropriate sorbet con- of sufficient diamcier to pass the bretst coretrot The outer tube g threaded for the antfhing. band to be ased, and it shal be driven to bedbuffc-bore drtfl rod and intenuD> confifured to rod or to 6rn seating at an devatioa beknrreceive the inaer-tabe bKhing device at one end water-4ensitr«e formation. A hardened drive shoeand threaded for a reaming she! and bh. or bit bw be nsed as a catting cd^ and thread proiec-onry. at the other end. tion device on the booon of the drive pipe or
4.4 Longuwdtmair Spm lifter TtAn — As op- casing. The uiive shoe koMle diaiiWi ihail beposed to fmmiHMinl cyaadhcal inner tubes. Urge enough lo pass the look intended for use,a&ow inspectxM) of. and access to, the core by and the shoe and pipe or casing shall be five firomsnooty removing one of the two halves. They- are bum or obstructions.not staadanjttGd bat are available lor nwst core 4 .aJ Oiasiajp^— When Beocsary to casebands includng Bttny of the lUiicvabic inner* tfaroogh lonnations ahraily peactratod by the
' types. borehole or ^faea no diivc ^ JCIM^ p^s been set,Core Bat — Core bits shaB be surface ta auxiliary casing shaB be provided to fit inside the
particles, insened with tangam carbide stags, or barrel. Standard sixes of nksroping casing arestrips, hard-faced with vanovs hard surfacing shown in Tabk 2. Casing bits have an obstructionmaterials or famished in saw-tooth farm. aH as in their interior and wii not pas the next smallerappropriate to the fonBanon being cored and raiing size. Use a casing shoe if additional teles-wtth coucunmce of the geologist or cnginrf r. Bit coping is anocipaicflautru matfrtil. crown shape, water-way type, 4.8.3 Casnf Later — Plastic pipe or sheet-location and auBber of water ways, diamond metal pipe may be ased to hne an existing Urge-sue and carat weight, and bh facing materials diameter casing Linen, so ased, shook) not beshaO be for general purpose ase antes otherwise driven, and care shook! be taken to TM;TI«"' true
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alignment throughout the length of the liner.4.8.4 Hollow Stem Auger—Hollow nem au-
ger may be used as casing for coring.4.9 Drill Rods:4.9.1 Drill Rods of Tubular SieelConaruciion
are normally used to transmit feed, rotation, andretraction forces from the drilling machine to thecore barrel. Drill-rod sizes that are presentlystandardized are shown in Table 3.
4.9.2 Large bore drill rods used with retrieva-ble inner-tube core barrels are not standardized.Drill rods used with retrievable inner-tube corebarrels should be those manufactured by thecore-barrel manufacturer specifically for the corebarrel.
4.9.3 Composite Drill Rods are specificallyconstructed from two or more materials intendedto provide specific properties such as light weightor electrical nonconductivity.
4.9.4 Nonmagnetic Drill Rods are manufac-tured of nonferrous materials such as aluminumor brass and are used primarily for hole surveywork. Some nonmagnetic rods have left-handthreads in order to further their value in surveywork. No standard exists for nonmagnetic rods.
4.10 Auxiliary Equipment, shall be furnishedas required by the work and shall include: rollerrock bits, drag bits, chopping bits, boulder bust-ers, fishtail bits, pipe wrenches, core barrelwrenches, lubrication equipment, core boxes,and marking devices. Other recommendedequipment includes: core splitter, rod wicking.pump-out tools or extruders, and hand sieve orstrainer.
5. Transportation and Storage of Core Con-tainers
S.I Core Boxes, shall be constructed of woodor other durable material for the protection andstorage of cores while enroute from the drill siteto the laboratory or other processing point. Allcore boxes shall be provided with longitudinalseparators and recovered cores shall be laid outas a book would read, from left to right and topto bottom, within the longitudinal separators.Spacer blocks or plugs shall be marked and in-serted into the core column within the separatorsto indicate the beginning of each coring run. Thebeginning point of storage in each core box is theupper left-hand corner. The upper left-hand cor-ner of a hinged core box is the left corner whenthe hinge is on the far side of the box and thebox is right-side up. All hinged core boxes must
be permanently marked on the outside to indi-cate the top and the bottom. All other core boxesmust be permanently marked on the outside toindicate the lop and the bottom and additionally,must be permanently marked internally to indi-cate the upper-left comer of the bottom with theletters UL or a splotch of red paint not less thanI in.3. Lid or cover fittings) for core boxes mustbe of such quality as to ensure against mix up ofthe core in the event of impact or upsetting ofthe core box during transportation.
5.2 Transportation of cores from the drill siteto the laboratory' or other processing point shallbe in durable core boxes so padded or suspendedas to be isolated from shock or impact transmit-ted to the transporter by rough terrain or carelessoperation.
5.3 Storage of cores, after initial testing orinspection at the laboratory or other processingpoint, may be in cardboard or similar less costlyboxes provided all layout and marking require-ments as specified in 5.1 are followed. Additionalspacer blocks or plugs shall be added if necessaryat time of storage to explain missing core. Coresshall be stored for a period of time specified bythe engineer but should not normally be dis-carded prior to completion of the project forwhich they were taken.
6. Procedure
6.1 Use core-drilling procedures when for-mations are encountered that are too hard to besampled by soil-sampling methods. A I-in. (25.4-mm) or less penetration foi 30 biows is accord-ance with Method D 1586 or other criteria estab-lished by the geologist or engineer, shall indicatethat soil-sampling methods are not applicable.
6.1.1 Seat the casing on bedrock or in a firmformation to prevent raveling of the boreholeand to prevent loss of drilling fluid. Level thesurface of the rock or hard formation at thebottom of the casing when necessary using theappropriate bits. Casing may be omitted if theborehole will stand open without the casing.
6.1.2 Begin the core drilling using an N-sizedouble-tube swivel-type core barrel or other sizeor type approved by the engineer. Continue coredrilling until core blockage occurs or until thenet length of the core barrel has been drilled in.Remove the core barrel from the hole and disas-semble it as necessary to remove the core. Reas-semble the core barrel and return h to the hole.Resume coring.
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6-U Place the recowod core ia the core box location, date boriagva* the svpa (surface) cad of the core « the pleted. aad draVr't aarx.
r^caraer of she care on as described in 7.IJ EJevaooaof tbcgrouadsurtace.core «MB appropriate 7.IJ Elevation of or depth to grand
, aad blocks as described in 5. 1. and nisiag or loucriag of kvd iadadag theWop soft wfriaible core or taoK«4jica change dates aad the-tsaatcrtalty apoti dryiag M plaBif fan or sew in 7.1.4»a^ or both, wbeasacBticataieatB required by fluid return was too.the cagiaea. Use ipacerModa or ctugs property 7.1.5 Size, type, aad design of care bane) used.•nrked to indicate aay noticeable gap in re- Size, type, sad «et of COR bit aad msniag dteflcowered COR wfaicli ntbt mOtate • changr or used. Sirr. type, aad k»0h of •• casing vsed.mid to the MMBUUOD. Fit Cracioie, hcddfd. or DescriptJOB of wy •owoKMsof B>ecun)(.JoiMed pieces of core together is they oatanDy T.IA Leacth of each care fMiaad tfaeleaftboocwrred.
6.1.4 Stop the core drabag «fcea soft mate- 7.1.7 Geoiogtfl's or agneer's descriptjoa cfrah aic eacoaatend that prodwzles than 50% the farmauoo icunund • each nm.
If MooBfy. KCMC M"*r*ft of soft 7.U DrBcr't descnpuok, if w> cagnocr or» HI accordance witn the prooBdures de- ff otogMi B prescm, of the iiMBm»flft vccoveicd
•eribod in Method D 1 596, Praoke D 1517. or ineacbnnLFncticeD 3530. or bjr a«y other netted accept- 7.1.9abk to the geotcgjfl or engraeo. Resame aw ing dip of strata aad joiafiag. caviDo. figure,
core dnftag «hea refioal autehab as andaayothgubKTMiioasaMdebythcgeoloKgtor cagiaeer that coafcl yield iafannatino regard-
6 J Sobsarfkoe stractare, tadwkng the dip of ing the fanaaboa.. the ocxoneacr of ieaais,fisBits, cavities, 7.1.10 Depth, thrtara. aad apparent nature
I broken areas are aawag the ami important of the fitting of each cavity or soft fleamencoun-i to be detected and described- Take special terel
care to obtain aad record iafonaabon about appearance of theiasideof the inner tube wbeathese feataTes. If coadnioas prevcat the contra- coreisloa. Record opinions as SMch.Mdadvaace of the core drflbag. the bole should 7.1.11 Any change in the character of thebe cemented aad rednUed. or reamed and cased. driOiag flud or dnBag tad retora.or cased aad advanced with the aen smaDer-iire 7.1.12 Tidal aad omeat ialbnnation whencore barrel, as required by the geologist or engi- the borehole is sufficiently dose to a body of
6.3 DrUbag mad or grouting techniques must 7.1.13 Drflhag mac ia aaaotes per foot andbe approved by the geotogtn or engineer prior to bit pressure in pond-force per square nxfa gage*eir ase in the borehole- when applicable.
6.4 Cen+atbtiarefE+apme* 7.1.14 Nounocs of daraoer of drfltng. that6.4.1 Wbeac%«r possible, core bam* and driD is. soft. sk**. easy, smooth, etc.
rods should be selected from the same letter-sizedesigaatjoa to ensure muuatmta cffirirnry. See g_ Piicifiaa aai Accarac)Tables I aad 3
6.4.2 NeW«e,co«nt««t«,ofpamp.<lnJ] «-l Tais practice does aot produce aumencalrod. and core band that yields a dear-water up- **ix therefore, a precision and accuracy state-bole velocity of ks than 120 ft/min. axat » art appbcabk.
60rod, ftno con nu icl OaU yvlos s a
dem-ttt ap-hole *Hoot> of less than 3000 ft/ tobn»iaicpncwrioarerDCDMAtoab.7»cttbtcarin. and leu nfcmiii mt •daded « • ooanoafoce to
et 0V «an •qonty el took • «se do ateet7 BOTH Lag DCDUAauataHOMl«i^»ovr»iir<gM|iaKatof
H^cauiuKty cqvd BK o> *e Bcmc soadard fyflem7.1 The Loriag log shaD include the following:7.1.1 Project identificuioa, boring number,
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TAKLC I Cm •* Sim
Outside Diameter Imide Diameter_»._..»..
RWTEWIEWG.EWMAWTAWG. AWMBWTBWG. BWMNWTNWG.NWM2k x 3HMWTHWC. . . .4x5tt6x7t
T*r Amrrtfon Society for Testing and Mairrtali uka iu> petition respecting the validity of any patera rights earned in connectiontri/A any arm mentioned in this standard Users of this standard art expressly advised that determination of the validity of am tuchpatent right t. and the risk of infringement of tuck rights, are entirety their a** responsibility
This standard ii subject to revision at any lime by the responsible technical committee and mutt be reviewd every fre fears endtf ma maed either reaporoved or vrithdrav.ii Your comments are invited either for revision oflhts aandard or for additionalstandards and should be addressed to ASTU Headquarters Your comments trill reerire cartful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel thai your comments have not received a fair hearing you shouldmake your Wmi inoxn to the ASTH Committee on Standards. 1916 Race St.. fhiladetphia. Fa 19103