Geotechnical Consultants

Published on December 2016 | Categories: Documents | Downloads: 53 | Comments: 0 | Views: 237
of 34
Download PDF   Embed   Report

This Geotechnical Consultants report was completed for Fairfield County in 2011.

Comments

Content


“This electronic communication and its contents may contain
confidential information which is the exclusive property of
Geotechnical Consultants, Inc. The recipient(s) assumes all
liability arising from any alteration, misuse or unauthorized
distribution. If you have received this information in error,
please notify the sender immediately.”

614.895.1400
Fax: 614.895.1171
www.gci2000.com

720 Greencrest Drive
Westerville, Ohio 43081-4902


Westerville, Ohio Youngstown, Ohio





SUBSURFACE EXPLORATION
AND PRELIMINARY
GEOTECHNICAL ENGINEERING REPORT

PROPOSED
FAIRFIELD COUNTY JUSTICE CENTER-MSMJ SITE
342 WEST WHEELING STREET
LANCASTER, OHIO

























Prepared by:
Geotechnical Consultants, Inc.

Prepared for:
The Fairfield County Commissioners
Wachtel & McAnally Architects/Planners

GCI Project No. 11-G-16121
June 10, 2011

Main Office
720 Greencrest Drive
Westerville, Ohio 43081-4902
614.895.1400
Fax: 614.895.1171
www.gci2000.com

Branch Offices
Youngstown 8433 South Ave. – Bldg. 1, Suite 1 Youngstown, OH 44514 (330) 965-1400 Fax (330) 965-1410
TABLE OF CONTENTS



INTRODUCTION......................................................................................................................................................1

SITE HISTORY AND PROJECT DESCRIPTION..................................................................................................2

SUBSURFACE CONDITIONS................................................................................................................................3

LABORATORY.........................................................................................................................................................5

ANALYSIS AND CONCLUSIONS.........................................................................................................................5

GEOTECHNICAL EVALUATION
BUILDING SUPPORT
SEISMIC FACTOR
EXCAVATIONS AND GROUNDWATER
PAVEMENTS
GENERAL SITE PREPARATION AND EARTHWORK

CONSTRUCTION MATERIALS ENGINEERNG AND TESTING...................................................................11

FINAL ......................................................................................................................................................................12

APPENDIX FOLLOWING PAGE NUMBER.......................................................................................................12

General Notes for Soil Classification
General Site Location Map (DeLorme. Street Atlas USA ® 2011)
USGS Topographic Map – 1992 Lancaster, Ohio Quadrangle
2009 Aerial Photograph – Fairfield County Auditor
Sanborn ® Fire Insurance Map (May, 1893)
Boring Location Plan
Table 1: Summary of Encountered Subsurface Conditions
Test Boring Logs
Table 2: Laboratory Test Results
ODNR Water Well Logs (2)

1

INTRODUCTION
As requested and authorized by Mr. Kent Staker of Wachtel & McAnally Architects/Planners, Inc on
behalf of the Fairfield County Commissioners, Geotechnical Consultants, Inc. (GCI) has performed a
subsurface exploration for a proposed Fairfield County Justice Center building at 342 West Wheeling
Street in Lancaster, Ohio. Prior to drilling, the client provided us with a “Scheme E” site plan, dated
6/5/2010, that showed the proposed and existing building footprints and six requested boring locations.

Our study consisted of six standard penetration test borings performed at or near the suggested locations
within the proposed structure footprint and limited laboratory testing. A sketch showing the
approximate boring locations and copies of the boring logs are included in the appendix of this report.
Test hole locations were established from existing site landmarks and general site features. Topographic
information was not shown on the plan provided, and GCI did not survey the ground surface elevations
at the boring locations.

The intent of this study is to evaluate subsoil conditions and offer preliminary design recommendations
relative to foundations, pavements, and earthwork. This report is issued prior to the receipt of final
foundation and grading plans. We would suggest that this office review these plans to provide
additional recommendations.

This preliminary report has been prepared for the exclusive use of the Fairfield County Commissioners,
Wachtel & McAnally Architects/Planners and their consultants for specific application to the proposed
Fairfield County Justice Center to be located at 342 West Wheeling Street in Lancaster, Ohio in
accordance with generally accepted soil and foundation engineering practices. No warranty, expressed
or implied, is made.

2
SITE HISTORY AND PROJECT DESCRIPTION
The site is comprised of two irregular-shaped parcels totaling about 2.5 acres in size. The property is
bordered by retail buildings and Lincoln Avenue (US Route 22) to the south, the tree-lined Hocking
River in its current alignment to the west, West Wheeling Street to the north, and a gas station to the
northeast. South Memorial Drive (U.S. Route 33) forms the east side boundary. The roadway was
constructed over the abandoned Ohio Canal at some time between 1893 and 1899; it was known as
Front Street at that time. A foundry and a glass plant were once located east and southeast of the site on
the east side of Route 33. A general site location map is appended to this report.

Review of historic (1889 through 1929) Sanborn® maps of the area indicates the site has seen prior
development in the form of several buildings used for a slaughter house from at least 1889 to 1919. The
1929 map shows a foundry on the parcel. The Hocking River once crossed through the site, entering the
property from the north and then curving to the west; it appears on Sanborn® maps dated 1899 and
earlier and is designated as the “old channel” (see attached copy of the 1893 map). We do not know
when the river was straightened and realigned to the west end of the site. At some point, fill was placed
on the site possibly in connection with the channel rerouting or as a means of dealing with spoils from
the on-site or adjacent foundries and glass plant. Review of the 1992 Lancaster, Ohio USGS
topographic quadrangle (see attached copy) shows grades ranging from elevation 833 feet near the east
site boundary to below elevation 820 feet to the west by the Hocking River. It also shows a building to
the east of the existing jail that no longer is present on the site; presumably the existing concrete
pavement in this area is the old floor slab, which could account for the significant spalling we observed
as it would have consisted of non-air-entrained concrete.

According to the Fairfield County Auditor record, a supermarket was constructed in the northwest
portion of the site in 1955. In 1994, this structure was converted to the current minimum security
county jail facility. The client indicated that they believe the existing structure is supported on shallow
3
strip footings and has been subject to some minor settlement that has not impaired its functionality.
Conversation with a deputy at the site indicated that the west building wall and adjacent slab were
jacked up about 1 to 2 inches through use of grout injections about two years ago, but he repeated that
functionality was not impaired prior to that repair. There is concrete pavement at the north end of the
site, with asphalt pavement covering the rest of the parcel (see cover photograph). We visually judged
the pavements to be in fair to poor condition.

The project consists of constructing a one-story, slab-on-grade prison building with a mezzanine in the
central portion of the property. The exterior walls will be 8-inch thick reinforced concrete masonry
block with a 4-inch veneer, and the slab will be an 8-inch precast with a 2-inch topping. The structural
engineer (Mr. Ray Blinn of Eeman & Blinn, Inc.) provided the following building load information:
exterior wall loads will vary from 5.48 to 6.38 kips per lineal foot in the two-story portion and be about
3.03 kips per foot for one-story walls; column loads in the two-story portion will vary from 78 to 89
kips and range from 20 to 30 kips in the one-story area. He estimated about 80% of the loads will be
dead loads. A grading plan was not available at the writing of this report, but we anticipate minor grade
changes (i.e., 2 feet or less of cuts and fills) will be required to achieve a level building pad and regrade
pavement areas. We understand that at least some of the existing building will likely be demolished as
part of the project.

SUBSURFACE CONDITIONS
GCI mobilized a truck-mounted drill rig (CME-45 with an automatic sampling hammer) to the site on
March 2, 2011 and drilled six standard penetration test borings at or near the requested locations to
obtain a generalized profile of existing subsurface conditions. Borings B-1 through B-6 were drilled
within the proposed building footprint to depths of either 25 or 30 feet. Specific boring information can
be obtained from the boring logs in the appendix. We summarize our boring findings below and in the
attached “Summary of Encountered Subsurface Conditions” table.
4
Surface Cover
The borings were drilled in existing pavement areas. Northern borings B-1 and B-2 encountered a rigid
section consisting of 3 to 4 inches of concrete over 3 inches of stone base. The remaining borings found
1 to 3.5 inches of asphalt cast directly on granular fill rather than stone base.

Existing Fill
The six borings encountered existing fill below the pavement section, extending to depths ranging from
9 feet to 17.5 feet below existing grade at the boring locations. The fill consisted primarily of dark
brown/black foundry sand (which we would classify as a non-plastic silty fine to medium sand - SM)
with varying but generally minor amounts of slag, glass, and brick. Occasional zones of slightly plastic
silty, clayey sand (SC-SM) or low plasticity clayey sand (SC) were encountered within the fill.
Standard penetration N-values recorded in the fill ranged from 0 to 13 blows per foot (bpf), commonly
from 2 to 8 bpf indicating the fill was loose to very loose in cohesionless density.

Natural Soils
We found natural cohesive soils, varying from non-organic to organic and from moderate to high
plasticity, immediately below the fill in the five of the six boring locations (east boring B-3 encountered
more granular natural soils below the deep fill cover at 17.5 feet below the surface). The cohesive soils
were alluvial deposits associated with the former Hocking River channel. In southeast boring B-4, we
encountered a non-organic, low to moderate plasticity brown lean clay (CL) that was medium stiff. The
other four borings (B-1, B-2, B-5 and B-6) drilled in the north and west portions of the site found
heavily stained lean to fat clays (CL to CH/OL to OH) with varying amounts of organics and shells that
were very soft (0 to 2 blows per foot commonly recorded).

The alluvial clays were underlain by a saturated granular formation that was encountered at depths
ranging from 12.5 feet (B-4) to 24.5 feet (B-5) below existing grade at the boring locations. These
deposits varied from slightly plastic silty, clayey sand with gravel (SC-SM) to non-plastic silty sand
with gravel/poorly graded sand with silt and gravel (SM/SP-SM). Trace shells were noted at the top of
the granular formation in B-1 and B-6. Standard penetration testing showed the sands to be loose to
medium dense. With the exception of B-3, the borings terminated within sand at depths of 25 or 30 feet.

East boring B-3 encountered a gray glacial till formation below the upper silty clayey sand with gravel
formation at a depth of 26 feet below the surface. Till is a primarily cohesive material comprised of
varying amounts of sand and gravel cemented in a lean clay matrix that generally exhibits low to moderate
plasticity. We visually classified the soil as gray sandy lean clay with gravel (CL) under the Unified
Classification System. Occasional thin layers of silty sand with gravel (SM) were noted within the
otherwise cohesive formation. The gray till was very stiff in cohesive consistency. We terminated B-3 in
the gray till at a depth of 30 feet below the surface.

Bedrock
Bedrock was not encountered in the borings performed (maximum drilled depth of 30 feet). The USDA
Soil Survey of Fairfield County maps the site as being in an area with bedrock consisting of sandstone
with interbedded shale. We estimate the depth to top of bedrock to be in excess of 100 feet, based on
review of logs for water wells in the site vicinity that are registered with ODNR (see attached copies of
two of those logs).

Groundwater and Soil Moisture Conditions
We encountered water seepage in the six borings at the time of drilling. In B-2, the groundwater was
found within the upper portion of the fill at a depth of 3 feet below the surface; the water level dropped
to 8 feet by the completion of drilling. Seepage was encountered within the lower portions of the fill
mass in borings B-1, B-3, and B-6 at depths of 7.5 to 9.5 feet below the surface; by the completion of
5
drilling, the water levels were recorded at depths of 9.5 to 10 feet below grade in these three boreholes.
In B-5, groundwater was observed at a depth of 12.5 feet below the surface in the upper portion of the
natural dark gray organic clay layer; the water level remained constant at the encountered depth in that
borehole at completion. B-4 found seepage within the underlying natural sand formation at a depth of
17.5 feet, with the level rising about a foot in the borehole by the end of drilling.

We generally characterize the retrieved fill samples as moist, with some very moist to wet zones where
seepage was encountered within the fill. The natural stained clays and underlying sand deposits were
typically described as wet.

Note that groundwater levels and moisture conditions can vary with changes in season and precipitation. It
is likely that the underlying sand formation is hydraulically connected to the adjacent Hocking River.



LABORATORY TESTING
We determined the natural moisture content of the first split spoon sample of natural soils obtained in
each boring (from depths of 13.5’ to 15’ in five of the borings, from 18.5’-20’ in B-3). East/southeast
borings B-3 and B-4 samples were found to have natural moisture contents of 13.5% and 7.7%,
respectively, at the time of drilling. The other four samples consisted of stained clays that had much
higher moisture contents, ranging from 31.9% in B-2 to 57.5% in B-1. We subjected the two samples
with the highest moisture content, B-1 and B-5, to loss-on-ignition testing. Results indicated respective
organic contents of 9.2% and 4.3%. From a geotechnical view point, we consider organic contents of
above 4% to 5% to be significant.


ANALYSIS AND CONCLUSIONS
GEOTECHNICAL EVALUATION
The borings encountered deep deposits of loose fill over the entire building pad. Soft, organic Hocking
River channel deposits underlie the north and west portions of the proposed footprint, but may not be
present in the southeast part. These subsoil conditions will have a significant impact on foundation and
floor slab options, and pavement design to a lesser extent due to both total and differential settlement
concerns. We discuss these issues and other concerns below.

6
The existing structure in the northwest corner of the site was built in 1955. It reportedly was constructed
using conventional shallow spread footings and slab-on-grade and has undergone some settlement but of
low enough magnitude (1 to 2 inches) to not impair its functionality. The proposed new justice center
building will be located southeast of the existing building and over the old Hocking River channel. Our
borings showed the existing fill in this area to consist primarily of a silty fine to medium sand in loose to
very loose condition that will settle under applied new fill and building loads. Additionally, four of our
borings encountered very soft natural alluvial clays with varying amounts of organics and shells. These old
channel deposits combined with the loose fills pose a significant differential settlement potential for the
proposed construction. Additionally, the proposed structural loads of the new jail will be about double
those of the existing facility (and therefore will induce a larger magnitude of settlement), and the new
building will have reinforced concrete masonry walls, which typically are not flexible enough to accept
large movements without cracking. Based on our borings and despite the reported “good”
performance of the adjacent existing structure, we feel the site fills and soft clays are not suitable for
support of shallow foundations or conventional slab-on-grade for the proposed construction.

To mitigate settlement concerns, we recommend that the structure be supported on deep foundations that
extend through the existing fill and soft, natural alluvial clay deposits to bear in the underlying non-
organic, medium dense to dense sand and gravel or stiff glacial till soils. Based on the soil profile and
anticipating that groundwater may typically be encountered at depths of 8 to 10 feet below the surface, we
suggest using auger-cast piles for the deep foundations. Auger-cast piles are efficient in deep sand and
gravel deposits as they gain capacity primarily due to skin friction, and groundwater does not interfere with
their installation. Slab support would remain a concern, unless the slab is also supported on these
elements. If this option is selected, we recommend that additional final phase borings be performed to
finalize design recommendations. Final phase borings should extend to deeper depths on the order of 60
feet to 70 feet to gather sufficient information to analyze auger-cast piles.

7
Another possible option would be to modify/strengthen the site soils using stone columns such as
“Geopiers.” Geopiers® are closely spaced rammed stone columns which, when properly designed and
installed, will improve soil bearing conditions enough to allow the use of conventional spread footings and
slab-on-grade. In our opinion, soil bearing capacities on the order of 4.000 psf to 5,000 psf would be
feasible for the site when properly fortified with stone columns. We recommend that these elements
extend through the fill and soft natural clays to bear in the sand formation. Geopiers® are a proprietary
system which would be designed by Geopier, Inc.

Caissons (drilled piers) could be considered for the deep foundation element, but they would require casing
to prevent cave-in of the loose granular fill soils and careful groundwater control. Groundwater will be
encountered near the fill/natural soil interface, which will necessitate the use of casing within the natural as
well as the fill site soils. We also anticipated the need to use a tremie during concrete placement. Caissons
are a less preferred option due to the concern of their being subject to excessive post-construction
downdrag forces and the potential for bearing soils to heave during construction.

Settlement in pavement areas remains a concern regardless of which foundation system is selected,
although a flexible pavement system would be much more forgiving when compared to building
elements. This is evidenced by the performance of the existing pavement. The need for periodic
maintenance as movements occur should be anticipated. We do recommend that existing asphalt be
stripped in proposed pavement areas, and the exposed subgrade carefully proofrolled to delineate
soft/loose soils requiring stabilization prior to placement of new fill or pavement sections. Unless
properly milled, stripped asphalt will not be suitable for re-use as fill. If milled, asphalt fill should not
be placed within the proposed building pads.

We understand that the existing building may be partially or totally demolished as part of the project.
Additionally, the existing concrete pavement east of the present jail may in fact be an old building slab
8
with below-grade building elements still in place. As such, we recommend that the existing concrete and
asphalt be removed from within the proposed building footprint plus 10 feet laterally beyond the planned
exterior walls. Any structural elements (foundations, slabs, walls, etc.) associated with the apparent former
structure or the existing jail structure being demolished should be completely removed from within the
building pad area. Reroute existing utilities that cross the proposed building footprint, remove the old
line(s), and properly backfill excavations. Ends of abandoned lines outside building and pavement areas
should be properly capped.

BUILDING SUPPORT
Due to settlement concerns, we recommend wall, column, and possibly floor slab loads be founded on
auger-cast piles bearing in the underlying sand and gravel. Grade beams will be necessary to transfer
loads. For preliminary pile capacity design purposes, we suggest accounting for a skin friction of 2 kips
per lineal foot of embedment into the natural sand and gravel for 16-inch auger cast piles and 2.25 kips
per lineal foot for 18-inch auger-cast piles. The loose fill and soft clays will induce downdrag forces
on the pile elements, which will need to be accounted for in design. A pile load test will be required
for piles designed over 40 tons. Additional final phase borings are recommended. The borings will
need to extend to depths on the order of 60 feet to 70 feet to be able to assess soils within anticipated
pile depths. As discussed above, Geopiers® are also viable; contact GCI if you wish to pursue
Geopiers® for building support.

Placement of new fill in the building area should be completed to approximate finished subgrade prior
to excavation of foundations. Exterior foundations should be placed with a minimum exterior cover
equal to the local frost code depth (32 inches typical) or extended to acceptable soils, whichever is
deeper. This should not be an issue where deep foundation elements are used.


9
SEISMIC FACTOR
The borings at the site revealed a generalized profile consisting of loose fill overlying very soft to
medium stiff natural clay deposits overlying medium dense sand and gravel. In accordance with the
Ohio Building Code, we would estimate the site as a Site Class E – “soft soil profile”.

EXCAVATIONS AND GROUNDWATER
Bedrock was not encountered in the borings (up to 30-foot drilled depths) and is not anticipated to
impact slab-on-grade, foundation, and utility excavations within the drilled boring depths. The site fill
and natural soils can be excavated using conventional hydraulic equipment. The site fills are loose to
very loose, and will need to be braced or appropriately sloped to maintain sidewall stability. All
excavations must be in accordance with federal, state, and local guidelines (i.e., OSHA
requirements).

Groundwater was initially encountered in the six borings at depths ranging from 3 to 17.5 feet below the
surface and was measured at depths of 8 to 16.5 feet at the completion of drilling operations. As such,
we anticipate that groundwater will be encountered during installation of the recommended deep
foundation elements, probably near the fill/natural soil interface. Significant flows are likely as we
believe the underlying sand and gravel formation is hydraulically connected to the adjacent Hocking
River. If water is encountered in shallow utility excavations within the existing fills, we recommend the
trench be dewatered to allow for backfilling in dry conditions; portable sump pumps and working mats of
crushed stone may be able to handle these more minor groundwater flows.

PAVEMENTS
The site contains loose fill deposits, as well as soft/organic natural soils in some areas of the property;
these soils will settle and may cause premature pavement breakup/drainage problems to some degree.
As such, we do not recommend installation of rigid sections as the concrete may crack excessively
10
should movements occur. Provided the site is properly prepared, it is our opinion that a flexible
pavement system can be used for site development, with the expectation of periodic maintenance being
required. We recommend that existing asphalt be stripped from proposed pavement areas. Subgrades
should be carefully proofrolled to identify soft/loose soils. These areas should be stabilized prior to
additional fil placement or new pavement construction. Particular attention should be paid to areas
where the existing pavement experienced distress. Installation of a biaxial geogrid directly below the
base course aggregate would mitigate the effects of differential settlements by helping the pavement
section to “float” intact over the fill deposits, and their use should be considered in design.

Design of a site-specific pavement design is beyond the scope of this preliminary study; this would
require laboratory testing and we would need design traffic information. For this type of project, GCI
would normally recommend a typical minimum pavement section of 3 inches of asphalt over 8 inches of
aggregate base in light-duty automobile parking areas. Heavy-duty areas subject to occasional truck
traffic would consist of a minimum of 4 inches of asphalt over 10 inches of base aggregate.

Providing adequate sub-base drainage is important to future pavement performance. Finger drains
connecting to weep-holes in all inlets, proper grading of pavement sub-grades and surfaces to shed run-
off, and under-drains in any pavement swales are suggested sub-base drainage methods and should be
used by the site civil engineer.

GENERAL SITE PREPARATION AND EARTHWORK
As a general approach to site preparation, we recommend the following:
1. Where the existing structure is to be demolished, completely remove below-grade structural
elements, including foundations, slabs, and walls. Similarly, within the proposed building pad
limits plus 10 feet beyond the walls, remove the existing concrete pavement and any old below-
grade structural elements from the former building. Properly backfill the resulting excavation.

Concrete rubble may be incorporated in structural fills if first broken into pieces no larger than 4
inches in maximum dimension and thoroughly mixed with site soils to avoid creation of voids.
11
If properly crushed to meet gradation requirements, the concrete may be used as new pavement
base material or underslab gravel.

2. Existing utilities that cross the proposed building footprint should be rerouted, the old line(s)
removed, and the excavation properly backfilled. The ends of abandoned pipes outside the
building footprint should be properly capped.

3. Remove existing asphalt. Asphalt may not be re-used as structural fill unless properly milled.
We do not recommend asphalt be incorporated in any building pad fills.

4. Strip surface vegetation and topsoil, if present within proposed building or pavement areas.
Topsoil may not be re-used as structural fill.

5. Thoroughly proofroll the stripped subgrades in pavement areas prior to filling or finish grading
to identify unstable areas. Particular attention should be paid to areas where the existing
pavements experienced distress. Stabilize as needed. Unstable subgrades below structural slabs
do not need to be stabilized. GCI should be contacted to observe proofrolling procedures.

6. Place and compact new fill in loose lifts (8 inches thick or less) to at least 98% optimum
Standard Proctor dry density (ASTM D-698). Lift thickness should be reduced to 6 inches in
confined areas where compactive effort is reduced. Cohesive site soils will be best compacted
with a sheepsfoot roller, while cohesionless soils will be best compacted with a vibratory,
smooth drum roller. The moisture content of the fill soils should be controlled to within 3% of
optimum moisture content. Depending on the time of year of earthwork, moisture adjustment of
the fill may be required to achieve compaction. Off site borrow should be reviewed by GCI
prior to use.

7. Excavate through the prepared building pad for foundations. Additional borings are needed
to design the recommended extended foundation system.

8. Slab and pavement subgrades should be compacted to a flat, smooth, stable surface with a flat
drum compactor prior to placement of aggregate base. Subgrade preparation during wet
weather may require the use of an engineered fabric or geogrid.



CONSTRUCTION MATERIALS ENGINEERING AND TESTING
GCI provides full service construction materials engineering and testing services. For project continuity
throughout construction, we recommend that GCI be retained to observe, test, and document:
earthwork procedures (stripping, fill placement, compaction, utility trench backfill, etc.)
foundation and slab preparation (proof-rolling, excavations, undercuts, etc.),
concrete placement (footings, structural concrete, slabs) and compressive strength testing, and
structural steel (welds, bolts, etc.).

The purpose of this work is to assess that the intent of our recommendations is being followed and to make
timely changes to our recommendations (as needed) in the event site conditions vary from those
12
encountered in our borings. Please contact our field department to initiate these services.
FINAL
This report is preliminary and not sufficient for final design of the recommended extended foundation
system. Additional deeper borings will need to be performed.

We recommend that GCI be provided the opportunity for general review of the final foundation and
grading plans and project specifications in order to verify that recommendations contained in this report
have been properly interpreted and implemented. In the event that any changes in the nature of the
development are planned, conclusions and recommendations contained in this report shall not be
considered valid unless changes are reviewed and conclusions of this report are modified or verified in
writing. The recommendations contained in this report are the opinion of Geotechnical Consultants,
Inc. based on the subsurface conditions found in the borings and available development information.

The site has seen prior development and was located within the floodplain of the Hocking River prior to
its realignment and the subsequent placement of substantial amounts of fill across the property. As such,
the nature and extent of variations between borings may not become evident until construction. If
variations then appear evident, it will be necessary to re-evaluate the recommendations of this report.
This report is prepared for design purposes only and is not considered sufficient to prepare an accurate
bid document.

GCI appreciates the opportunity to work with you on this project and we hope to continue service for
the project through construction. If you have any questions or the need for additional services, please
call.

APPENDIX



GENERAL NOTES FOR SOIL SAMPLING AND CLASSIFICATIONS

BORINGS, SAMPLING AND GROUNDWATER OBSERVATIONS:
Drilling and sampling were conducted in accordance with procedures generally recognized and accepted as standard methods of
exploration of subsurface conditions. The borings were drilled using a truck-mounted drill rig using auger boring methods with
standard penetration testing performed in each boring at intervals ranging from 1.5 to 5.0 feet. The stratification lines on the logs
represent the approximate boundary between soil types at that specific location and the transition may be gradual.

Water levels were measured at drill locations under conditions stated on the logs. This data has been reviewed and interpretations
made in the text of the report. Fluctuations in the level of the groundwater may occur due to other factors than those present at the
time the measurements were made.

The Standard Penetration Test (ASTM-D-1586) is performed by driving a 2.0 inch O.D. split barrel sampler a distance of 18 inches
utilizing a 140 pound hammer free falling 30 inches. The number of blows required to drive the sampler each 6 inches of
penetration are recorded. The summation of the blows required to drive the sampler for the final 12 inches of penetration is termed
the Standard Penetration Resistance (N). Soil density/consistency in terms of the N-value is as follows:

COHESIONLESS DENSITY COHESIVE CONSISTENCY
0-10 Loose 0-4 Soft
10-30 Medium Dense 4-8 Medium Stiff
30-50 Dense 8-15 Stiff
50 + Very Dense 15-30 Very Stiff
30 + Hard



SOIL MOISTURE TERMS
Soil Samples obtained during the drilling process are visually characterized for moisture content as follows:

MOISTURE
CONTENT

DESCRIPTION

Damp
Soil moisture is much drier than the Atterberg plastic limit (where soils are cohesive) and generally more
than 3% below Standard Proctor "optimum¨ moisture conditions. Soils of this moisture generally require
added moisture to achieve proper compaction.

Moist
Soil moisture is near the Atterberg plastic limit (cohesive soils) and generally within ±3% of the Standard
Proctor "optimum¨ moisture content. Little to no moisture conditioning is anticipated to be required to
achieve proper compaction and stable subgrades.

Very Moist
Soil moisture conditions are above the Atterberg plastic limit (cohesive soils) and generally greater than 3%
above Standard Proctor "optimum¨ moisture conditions. Drying of the soils to near "optimum¨ conditions is
anticipated to achieve proper compaction and stable subgrades.

Wet
Soils are saturated. Significant drying of soils is anticipated to achieve proper compaction and stable
subgrades.



SOIL CLASSIFICATION PROCEDURE:
Soil samples obtained during the drilling process are preserved in plastic bags and visually classified in the laboratory. Select soil
samples may be subjected to laboratory testing to determine natural moisture content, gradation, Atterberg limits and unit weight.
Soil classifications on logs may be adjusted based on results of laboratory testing.

Soils are classified in accordance with the ASTM version of the Unified Soil Classification System. ASTM D-2487 "Classification of
Soils for Engineering Purposes (Unified Soil Classification System) describes a system for classifying soils based on laboratory
testing. ASTM D-2488 "Description and Ìdentification of Soil (Visual-Manual Procedure) describes a system for classifying soils
based on visual examination and manual tests.

Soil classifications are based on the following tables (see reverse side):


720 GREENCREST DRÌVE WESTERVÌLLE, OHÌO 43081-4902 614-895-1400 FAX 614-895-1171




GENERAL NOTES FOR SOIL SAMPLING AND CLASSIFICATIONS

PARTICLE SIZE DEFINITION CONSTITUENT MODIFIERS
Boulders: >12¨
Cobbles: 3¨ to 12¨ Trace Less than 5%
Gravel: Coarse: 3/4¨ to 3¨ Few 5-10%
Fine: No. 4 (3/16¨) to 3/4¨ Little 15-25%
Sand: Coarse No. 10 (2.0mm) to No. 4 (4.75mm) Some 30-45%
Medium No. 40 (0.425mm) to No. 10 (2.0mm) Mostly 50-100%
Fine No. 200 (0.074mm) to No. 40 (0.425mm)

Silt & Clay

<0.074mm; classification based on overall plasticity; in general
clay particles <0.005mm.



ASTM/UNIFIED SOIL CLASSIFICATION AND SYMBOL CHART

COARSE-GRAÌNED SOÌLS
(more than 50% of materials is larger than No. 200 sieve size)

Clean Gravel (less than 5% fines)
GW Well-graded gravel, gravel-sand mixtures, little or no fines
GP Poorly-graded gravels, gravel sand mixtures, little or no fines
Gravels with fines (more than 12% fines)
GM Silty gravels, gravel-sand-silt mixtures


GRAVELS
More than 50% of coarse fraction larger
than No. 4 sieve size
GC Clayey gravels, gravel-sand-clay mixtures
Clean Sands (Less than 5% fines)
SW Well-graded sands, gravelly sands, little or no fines
SP Poorly-graded sands, gravelly sands, little or no fines
Sands with fines (More than 12% fines)
SM Silty sands, sand-silt mixtures


SANDS
More than 50% of coarse fraction smaller
than No. 4 sieve size
SC Clayey sands, sand-clay mixtures
Depending on percentage of fines (fraction smaller than No. 200 sieve size), coarse-grained soils are classified as follows:


Less than 5 percent .......................................GW, GP, SW, SP
Greater than 12 percent ......................................GM, GC, SM, SC
5 to 12 percent .....................Borderline cases requiring duel symbols: SP-SM, GP-GM, etc.


FÌNE-GRAÌNED SOÌLS
(50% or more of material is smaller than No. 200 sieve size)
ML Ìnorganic silts and very fine sands, rock flour, silty or clayey fine
sands or clayey silts with slight plasticity
CL Ìnorganic clays or low to medium plasticity, gravelly clays, sandy
clays, silty clays, lean clays
CL-ML Ìnorganic silty clay of slight plasticity, P.Ì. between 4 and 7


SILTS AND CLAYS
Liquid Limit less than 50%
OL Organic silts and organic silty clays of low plasticity
MH Ìnorganic silts, micaceous or diatomaceous fine sandy or silty soils,
elastic silts
CH Ìnorganic clays of high plasticity, fat clays

SILTS AND CLAYS
Liquid Limit 50% or greater
OH Organic clays or medium to high plasticity, organic silts
HIGHLY ORGANIC SOILS PT Peat and other highly organic soils

720 GREENCREST DRÌVE WESTERVÌLLE, OHÌO 43081-4902 614-895-1400 FAX 614-895-1171
G
C
Ì

J
o
b

N
u
m
b
e
r
:

1
1
-
G
-
1
6
1
2
1
3
4
2

W
e
s
t

W
h
e
e
l
i
n
g

S
t
r
e
e
t

-

L
a
n
c
a
s
t
e
r
,

O
h
i
o
F
a
i
r
f
i
e
l
d

C
o
u
n
t
y

J
u
s
t
i
c
e

C
e
n
t
e
r
-
M
S
M
J

S
i
t
e
S
u
m
m
a
r
y

o
f

E
n
c
o
u
n
t
e
r
e
d

S
u
b
s
u
r
f
a
c
e

C
o
n
d
i
t
i
o
n
s
D
e
p
t
h

(
f
t
)
t
o

S
t
a
i
n
e
d
C
l
a
y
w
/
O
r
g
a
n
i
c
s
-
-
-
-
-
-
-
-
-
-
-
-
S
h
e
e
t


1


o
f


1
B
-

1
C
o
n
c
r
e
t
e
3
1
1
.
0
9
.
5
1
0
1
1
.
0
-
-


1
8
.
0
-
-

2
5
.
0
B
-

2
C
o
n
c
r
e
t
e
3
1
1
.
5
3
8
1
1
.
5
-
-


2
0
.
0
-
-

2
5
.
0
B
-

3
A
s
p
h
a
l
t
3
.
5
-
-
1
7
.
5
9
.
5
9
.
5
-
-
-
-


1
7
.
5
2
6
.
0

3
0
.
0
B
-

4
A
s
p
h
a
l
t
1
.
5
-
-
3
.
0
9
.
0
1
7
.
5
1
6
.
5
-
-
9
.
0


1
2
.
5
-
-

3
0
.
0
B
-

5
A
s
p
h
a
l
t
1
-
-
1
1
.
5
1
2
.
5
1
2
.
5
1
1
.
5
-
-


2
4
.
5
-
-

3
0
.
0
B
-

6
A
s
p
h
a
l
t
1
-
-
1
1
.
5
7
.
5
1
0
1
3
.
5
1
1
.
5


2
1
.
0
-
-

3
0
.
0
D
e
p
t
h

t
o
T
o
p

o
f
S
a
n
d
/
G
r
a
v
e
l
(
f
t
)
S
t
o
n
e
P
a
v
e
m
e
n
t

T
h
i
c
k
n
e
s
s
(
i
n
c
h
e
s
)
D
e
p
t
h

t
o
T
o
p

o
f
L
e
a
n

C
l
a
y
(
f
t
)
D
e
p
t
h

t
o
T
o
p

o
f
B
e
d
r
o
c
k
(
f
t
)
S
u
r
f
a
c
e
L
a
y
e
r
D
e
p
t
h
4
.
0
G
r
o
u
n
d
w
a
t
e
r
:

L
e
v
e
l
E
n
c
o
u
n
t
e
r
e
d

(
f
t
)
D
e
p
t
h
G
r
o
u
n
d
w
a
t
e
r
:


L
e
v
e
l
a
t

C
o
m
p
l
e
t
i
o
n

(
f
t
)
B
o
t
t
o
m

o
f
B
o
r
i
n
g
D
e
p
t
h

(
f
t
)
B
o
t
t
o
m

o
f
F
i
l
l

C
o
v
e
r
(
f
e
e
t
)
D
e
p
t
h

t
o
T
o
p

o
f
G
r
a
y

T
i
l
l
(
f
t
)
B
o
r
e
h
o
l
e
C
o
n
c
r
e
t
e

o
r
A
s
p
h
a
l
t
2.0-3.5
4.0-5.5
8.5-10.0
13.5-15.0
18.5-20.0
23.5-25.0
SS
SS
SS
SS
SS
SS
4
1
1
1
oI
4
6
1
1
1
Ham-
5
Moist
Moist
Moist to
Wet
Wet
Wet
Wet
0.3
0.6
11.0
18.0
25.0
Concrete (4" thick) over Stone Base (3" thick)
FILL: Black Foundry Sand, Few Slag, Trace Glass, Brick
non-plastic; mostly Iine to medium sand, little silt
occasional layers with slightly plastic Iines
Water Seepage at 9.5'
Dark Gray Organic Clay (OL/OH); moderately high to high
plasticity; trace Iine to medium sand, Iew wood/organics
Ior 13.5'-15' sample:
Organic Content (L.O.I.) ÷ 9.2º
Natural Moisture Content ÷ 57.5º
Iew shells with depth
Gray Silty Sand /Silty Clayey Sand (SM/SC-SM); mostly Iine
to coarse sand; little Iines that vary Irom non-plastic silt to
slightly plastic silty clay, Iew to little gravel; little shells at top
oI deposit
occasional thin layers oI gray lean clay with trace
organics/shells
BOTTOM OF BORING: 25.0'
3
3
1
2
Wt.
mer
4
TEST BORING LOG
Pocket
Penetrometer
(tsI)
Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
10.0 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
30
-
-
-
-
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
Little 15 to 25°
Some 30 to 45°
Mostly 50 to 100°
B- 1
3/3/2011
BORING NO.
SURF. ELEV.
10.0 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
B- 1
3/3/2011
BORING NO.
SURF. ELEV.
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION
Less than 5°
30
-
-
-
-
4
HOURS
8
15
30
30
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
4
HOURS
8
15
30
30
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
Few 5 to 10°
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
Trace
Moisture
Density
or
Consist.
Depths
Sample
From To Depth*
Change
Strata Type
Sample
oI
0-6 6-12 12-18
From To
on Sampler
Blows per 6"
SOIL IDENTIFICATION
Remarks include color, type oI soil, etc.
Rock-color, type, condition, hardness
2.0-3.5
4.0-5.5
8.5-10.0
13.5-15.0
18.5-20.0
23.5-25.0
SS
SS
SS
SS
SS
SS
4
3
1
4
1
14
4
4
1
3
1
12
Moist to
Wet
Wet
Wet
Wet
Wet
Wet
0.3
0.6
11.5
20.0
25.0
Concrete (3" thick) over Stone Base (3" thick)
FILL: Brown and Gray Silty Fine to Coarse Sand, Few to
Little Glass, Trace Slag, Brick, Stone; non-plastic
Water Seepage at 3.0'
occasional layers with slightly plastic Iines (SC-SM)
occasional layers oI brown sandy clean clay with gravel
(CL)
stained soils, trace wood and topsoil with depth
Dark Gray Lean Clay (CL); moderately high plasticity, Iew
shells, trace wood/organics
with layers oI non-plastic silty sand (SM), occasional cobbles
Ior 13.5'-15' sample:
Natural Moisture Content ÷ 31.9º
Brown Silty, Clayey Sand with Gravel (SC-SM); Iine to coarse
sand, little to some gravel, little low plasticity silty clay
BOTTOM OF BORING: 25.0'
3
2
1
5
1
12
--
1.0
0
0
--
--
TEST BORING LOG
Pocket
Penetrometer
(tsI)
Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
8.0 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
30
-
-
-
-
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
Little 15 to 25°
Some 30 to 45°
Mostly 50 to 100°
B- 2
3/3/2011
BORING NO.
SURF. ELEV.
8.0 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
B- 2
3/3/2011
BORING NO.
SURF. ELEV.
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION
Less than 5°
30
-
-
-
-
4
HOURS
8
15
30
30
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
4
HOURS
8
15
30
30
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
Few 5 to 10°
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
Trace
Moisture
Density
or
Consist.
Depths
Sample
From To Depth*
Change
Strata Type
Sample
oI
0-6 6-12 12-18
From To
on Sampler
Blows per 6"
SOIL IDENTIFICATION
Remarks include color, type oI soil, etc.
Rock-color, type, condition, hardness
2.0-3.5
4.0-5.5
8.5-10.0
13.5-15.0
18.5-20.0
23.5-25.0
28.5-30.0
SS
SS
SS
SS
SS
SS
SS
3
1
1
6
10
11
12
2
1
1
7
11
13
13
Moist
Moist
Moist to
Wet
Wet
Wet
Wet
Moist
0.3
17.5
26.0
30.0
Asphalt (3.5" thick)
FILL: Brown and Gray Silty Fine to Coarse Sand, Trace Slag,
Brick; non-plastic
stained soils, trace wood with depth
Water Seepage at 9.5'
Brown Silty, Clayey Sand with Gravel (SC-SM); Iine to coarse
sand, little to some gravel, little low plasticity silty clay
Ior 18.5'-20' sample:
Natural Moisture Content ÷ 13.5º
Gray Sandy Lean Clay with Gravel (CL) - glacial till; moderate
plasticity, some Iine to coarse sand, Iew to little gravel
with occasional layers oI silty sand with gravel (SM)
BOTTOM OF BORING: 30.0'
2
2
1
5
10
10
10 3.5-4.5
TEST BORING LOG
Pocket
Penetrometer
(tsI)
Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
9.5 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
30
-
-
-
-
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
Little 15 to 25°
Some 30 to 45°
Mostly 50 to 100°
B- 3
3/3/2011
BORING NO.
SURF. ELEV.
9.5 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
B- 3
3/3/2011
BORING NO.
SURF. ELEV.
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION
Less than 5°
30
-
-
-
-
4
HOURS
8
15
30
30
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
4
HOURS
8
15
30
30
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
Few 5 to 10°
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
Trace
Moisture
Density
or
Consist.
Depths
Sample
From To Depth*
Change
Strata Type
Sample
oI
0-6 6-12 12-18
From To
on Sampler
Blows per 6"
SOIL IDENTIFICATION
Remarks include color, type oI soil, etc.
Rock-color, type, condition, hardness
2.0-3.5
4.0-5.5
8.5-10.0
13.5-15.0
18.5-20.0
23.5-25.0
28.5-30.0
SS
SS
SS
SS
SS
SS
SS
0
5
3
8
10
9
11
0
7
3
9
11
10
12
Moist
Moist
Moist
Wet
Wet
Wet
Wet
0.1
9.0
12.5
30.0
Asphalt (1.5" thick)
FILL: Black Foundry Sand, Few Slag, Trace Glass, Brick
non-plastic; mostly Iine to medium sand, little silt
Brown Lean Clay (CL); low to moderate plasticity; Iew to little
Iine to coarse sand
Brown Poorly Graded Sand with Silt and Gravel (SP-SM);
non-plastic, Iine to coarse sand, little gravel, Iew to little silt,
trace sandstone Iragments
Ior 13.5'-15' sample:
Natural Moisture Content ÷ 7.7º
Water Seepage at 17.5'
with depth,
coarser sand/gravel
more/slightly plastic Iines
BOTTOM OF BORING: 30.0'
2
3
2
7
8
8
10
1.0-2.0
TEST BORING LOG
Pocket
Penetrometer
(tsI)
Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
16.5 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
30
-
-
-
-
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
Little 15 to 25°
Some 30 to 45°
Mostly 50 to 100°
B- 4
3/3/2011
BORING NO.
SURF. ELEV.
16.5 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
B- 4
3/3/2011
BORING NO.
SURF. ELEV.
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION
Less than 5°
30
-
-
-
-
4
HOURS
8
15
30
30
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
4
HOURS
8
15
30
30
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
Few 5 to 10°
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
Trace
Moisture
Density
or
Consist.
Depths
Sample
From To Depth*
Change
Strata Type
Sample
oI
0-6 6-12 12-18
From To
on Sampler
Blows per 6"
SOIL IDENTIFICATION
Remarks include color, type oI soil, etc.
Rock-color, type, condition, hardness
2.0-3.5
4.0-5.5
8.5-10.0
13.5-15.0
18.5-20.0
23.5-25.0
28.5-30.0
SS
SS
SS
SS
SS
SS
SS
5
1
2
oI
1
7
11
6
1
3
Ham-
1
10
12
Moist
Moist
Moist
Wet
Wet
Wet
Wet
0.1
11.5
24.5
30.0
Asphalt (1.0" thick)
FILL: Black Foundry Sand, Few Slag, Trace Glass, Metal
non-plastic; mostly Iine to medium sand, little silt
occasional thin layers oI stained lean clay
Dark Gray Lean Clay/Organic Clay (CL/OL); moderately high
plasticity, trace Iine to medium sand, Iew wood and shells
Water Seepage at 12.5'
Ior 13.5'-15' sample:
Organic Content (L.O.I.) ÷ 4.3º
Natural Moisture Content ÷ 43.5º
Gray Poorly Graded Sand with Silt and Gravel (SP-SM);
non-plastic, Iine to coarse sand, little gravel, Iew to little
non-plastic silt to slightly plastic silty clay Iines
BOTTOM OF BORING: 30.0'
4
2
2
Wt.
mer
1
3
8
0.5
TEST BORING LOG
Pocket
Penetrometer
(tsI)
Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
12.5 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
30
-
-
-
-
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
Little 15 to 25°
Some 30 to 45°
Mostly 50 to 100°
B- 5
3/3/2011
BORING NO.
SURF. ELEV.
12.5 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
B- 5
3/3/2011
BORING NO.
SURF. ELEV.
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION
Less than 5°
30
-
-
-
-
4
HOURS
8
15
30
30
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
4
HOURS
8
15
30
30
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
Few 5 to 10°
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
Trace
Moisture
Density
or
Consist.
Depths
Sample
From To Depth*
Change
Strata Type
Sample
oI
0-6 6-12 12-18
From To
on Sampler
Blows per 6"
SOIL IDENTIFICATION
Remarks include color, type oI soil, etc.
Rock-color, type, condition, hardness
2.0-3.5
4.0-5.5
8.5-10.0
13.5-15.0
18.5-20.0
23.5-25.0
28.5-30.0
SS
SS
SS
SS
SS
SS
SS
3
1
3
oI
2
6
9
4
1
4
Ham-
2
8
10
Moist
Moist
Wet
Wet
Wet
Wet
Wet
0.1
11.5
13.5
21.0
30.0
Asphalt (1.0" thick)
FILL: Black Foundry Sand, Few Slag, Trace Glass
non-plastic; mostly Iine to medium sand, little silt
Water Seepage at 7.5'
Brown Lean Clay with Organics (CL)
Dark Gray Lean Clay (CL); moderately high plasticity, Iew
shells, trace wood/organics
with layers oI non-plastic silty Iine sand (SM)
Ior 13.5'-15' sample:
Natural Moisture Content ÷ 37.9º
Gray Poorly Graded Sand with Silt and Gravel (SP-SM);
non-plastic, Iine to coarse sand, little gravel, Iew to little
non-plastic silt to slightly plastic silty clay Iines
shells at top oI deposit
BOTTOM OF BORING: 30.0'
2
2
3
Wt.
mer
1
4
7
0.5
TEST BORING LOG
Pocket
Penetrometer
(tsI)
Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
10.0 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
30
-
-
-
-
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
Little 15 to 25°
Some 30 to 45°
Mostly 50 to 100°
B- 6
3/3/2011
BORING NO.
SURF. ELEV.
10.0 FEET BELOW SURFACE AT COMPLETION
Fairfield County Commissioners 11-G-16121
0
4
8
15
FEET BELOW SURFACE AT
0
10
10
30
50
140 lb Wt. x 30" fall on 2" O.D. Sampler
SoIt
Medium StiII
StiII FEET BELOW SURFACE AT 24 HOURS
The stratification lines represent the approximate boundary
between soil types and the transition may be gradual.
720 Greencrest Drive
Very Dense
LOCATION OF BORING
DATE DRILLED
B- 6
3/3/2011
BORING NO.
SURF. ELEV.
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION
Less than 5°
30
-
-
-
-
4
HOURS
8
15
30
30
5
10
15
20
25
PROJECT NAME
CLIENT
PROJ.
NO.
4
HOURS
8
15
30
30
Medium Dense
Dense
Westerville, Ohio 43081 614-895-1400
50
-
-
-
Few 5 to 10°
¹
Loose
Cohesionless Density Cohesive Consistency
See Boring Location Plan
`
GROUND WATER OBSERVATION Proportions Used
Very StiII
Hard ¹
D
E
P
T
H
Fairfield County 1ustice Center-MSM1 Site - 342 West Wheeling Street -
Lancaster, Ohio
Trace
Moisture
Density
or
Consist.
Depths
Sample
From To Depth*
Change
Strata Type
Sample
oI
0-6 6-12 12-18
From To
on Sampler
Blows per 6"
SOIL IDENTIFICATION
Remarks include color, type oI soil, etc.
Rock-color, type, condition, hardness
B- 1 13.5 57.5 9.2
B- 2 13.5 31.9 -
B- 3 18.5 13.5 -
B- 4 13.5 7.7 -
B- 5 13.5 43.5 4.3
B- 6 13.5 37.9 -
Summary of Laboratory ResuIts
342 West Wheeling Street - Lancaster, Ohio
GCÌ Job Number: 11-G-16121

Fairfield County Justice Center-MSMJ Site
Water
Content
(%)
Depth Test Hole
Organic
Content
(%)
March 2011

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close