N0159 LCIDN11EmmaElementaryClosureReport20120126

REPORT OF
ENGINEERING SERVICES
EMMA ELEMENTARY DEMOLITION LANDFILL CLOSURE
ASHEVILLE, BUNCOMBE COUNTY, NORTH CAROLINA
ECS PROJECT No. 31-1742-A
Prepared For
BUNCOMBE COUNTY SCHOOLS
Prepared By
LLF�
JANUARY 26, 2012

S CAROLINAS. LLP
Ms. Carrie Nagel
Buncombe County Schools
175 Bingham Road
Asheville, North Carolina 28806
Reference: Report of Engineering Services
Emma Elementary Demolition Landfill Closure
Asheville, Buncombe County, North Carolina
ECS Project No. 31-1742-A
Dear Ms. Nagel:
the
January 26, 2012
ECS Carolinas, LLP (ECS) has completed the engineering services related to closure of the
Demolition Landfill at the Emma Elementary School property. This work was authorized by your
acceptance of our Proposal Number 31-1686-P dated February 8, 2011, and Proposal Number
31-1929-P dated July 19, 2011, and was performed in general accordance with the scopes of
services outlined therein. This report summarizes the results of our engineering services.
We appreciate the opportunity to be of service to you and Buncombe County Schools. If you
have any questions concerning the information and recommendations presented in this report,
or if we can be of further assistance, please do not hesitate to contact us at 828-665-2307.
Sincerely,
ECS CAROLINAS, LLP represented by:
Scott W. Sawyer
Geotechnical Staff Project Manager
Matthew S. Fogleman, P.E.
Vice President / Principal Engineer
NC Registration No. 31049
200 Ridgefield Court, Suite 222, Asheville, NC 28806 • (828)-665-2307 • Fax [phone] • w .ecslimitedxcnn
Asheville, NC.Chulntm, NC- G=nsbnm, NC.Gre ville, SC, Rnkigh. NC•So mb rD, N6Wilmi�mn, NC

1.0 PROJECT INFORMATION
Our understanding of the project is based upon our initial meeting with you and Mr. Tim Fierle
of Buncombe County Schools. During our initial meeting, we were provided with the following:
• An email notification dated December 15, 2010 from Ms. Andrea Keller at the North
Carolina Department of Environment and Natural Resources (NCDENR)
• A letter dated July 5, 1995 entitled "Land Clearing & Inert Debris Notification"
• A Grading, Drainage, & Erosion Control Plan developed by Ledford Engineering revised
January 16, 1996
• A Conceptual Planting Plan developed by Land Planning Collaborative dated November
22, 1996
• Numerous other construction drawings for various phases of renovations at Emma
Elementary provided to us electronically via CD
We understand that a fill area on the subject property received debris related to the demolition
of an existing structures during construction of additions and renovations at Emma Elementary
School. The precise location and extents of the fill area have been unknown, but project
drawings indicate an area located north-northeast of the bus loop that was designated as a
"demolition debris landfill area". According to a Grading, Drainage, and Erosion Control Plan
(Sheet C-3) dated January 16, 1996, this area is shown having dimensions of 200 feet by 150
feet and was to have a minimum of 3 feet of clean soil cover.
The NCDENR Division of Waste Management — Solid Waste Section has requested that the
owner verify that the disposal facility is closed and is no longer accepting waste and has no
intent to accept waste in the future and that the facility meets the NCDENR requirements. The
results of our subsurface sampling (described below) indicated that the buried debris was
demolition debris as opposed to land clearing debris. According to Ms. Andrea Keller of the
NCDENR Solid Waste Section, the disposal area would therefore be required to verify
compliance with the Demolition Landfill regulations outlined in General Statute 130A-301.2
Disposal of demolition debris in an on -site landfill having a disposal area of one acre or less
(expired June 30, 2001) as opposed to the Land Clearing and Inert Debris (LCID) Notified site
Rules.
2.0 FIELD EXPLORATION
General
The landfill site is located at the existing Emma Elementary School in Asheville, North Carolina.
Photographs of the site are included in the Appendix of this report.
ECS performed an initial subsurface investigation on February 25, 2011 consisting of a total of
31 hand auger borings to identify the limits of buried debris at the site and to measure the
thickness of the soil cap. The debris encountered within our hand auger borings generally
consisted of concrete and asphalt fragments, metal fragments, and stone aggregates which
indicated construction demolition debris as opposed to land clearing debris.
ECS contacted Ms. Andrea Keller with NCDENR Solid Waste Section and met with her on -site
on May 11, 2011 to discuss our findings. Ms. Keller issued a Facility Compliance Audit Report
dated May 16, 2011, which indicated that the disposal area is subject to the Demolition Landfill
rules (now expired) as opposed to the LCID rules.

Report of Engineering Services
Emma Elementary Demolition Landfill Closure
Asheville, Buncombe County, North Carolina
ECS Project No. 31-1742
Page 2
In order to evaluate compliance with the Demolition Landfill rules, this audit report included
recommendations for additional subsurface exploration within the locations of the modular
classrooms to evaluate whether the buried debris extends under these classroom buildings.
Also, the audit report stated that a survey plat showing the limits of the landfill area must be
filed with the register of deeds.
ECS returned to the site on August 31, 2011 to perform an additional subsurface exploration in
order to further delineate the extents of the buried debris. A total of eight additional hand auger
borings were performed at the site, as well as a ground penetrating radar (GPR) survey in the
vicinity of the modular classroom buildings.
Hand Auger Borings
A total of thirty-nine (39) hand auger borings (HA-1 through HA-39) were performed within
select areas inside and around the perimeter of the designated demolition debris landfill area as
indicated on the Grading, Drainage, and Erosion Control Plan provided to us. Thirty-one (31)
hand auger borings (HA-1 through HA-31) were performed on February 25, 2011 as part of our
initial investigation. Eight (8) additional hand auger borings (HA-32 through HA-39) were
performed on August 31, 2011 to evaluate the presence of buried debris within the vicinity of
the modular classrooms.
The hand auger borings were extended to depths ranging from approximately 1 to 6 feet
beneath the existing ground surface. The boring locations were established in the field by ECS
personnel by estimating distances and estimating angles from existing site features. The test
locations are shown on the Exploration Location Diagram in the Appendix and should be
considered approximate. The individual Hand Auger Records are included in the Appendix.
The hand auger borings were performed by turning a three-inch diameter hollow bucket auger
with sharpened blades into the soil. Samples of the cuttings were collected in approximate
6-inch increments and visually classified. The boreholes were backfilled with the auger cuttings
upon completion.
Ground Penetrating Radar
Ground penetrating radar (GPR) scans were performed within and around the modular
classrooms in order to help identify the presence of possible buried demolition debris in these
areas, as well as to help identify underground utilities. The surveys were performed utilizing a
GSSI SIR 3000 radar system with a 400 MHz antenna.
3.0 EXPLORATION RESULTS
Subsurface Conditions
The hand auger borings generally confirmed the presence of buried demolition debris across
the site. The demolition debris encountered generally consisted of concrete, asphalt, metal
fragments, and stone aggregates. The hand auger borings initially encountered a surficial soil
cap ranging from approximately 1 foot to 6 feet in thickness. The cap typically consisted of
reddish -brown fine sandy clay and sandy silt.

Report of Engineering Services
Emma Elementary Demolition Landfill Closure
Asheville, Buncombe County, North Carolina
ECS Project No. 31-1742
Page 3
The following generalized conditions were encountered at each area explored:
• Hand auger borings HA-1, HA-2, and HA-3 were performed along the north side of the
existing paved bus loop. These areas encountered demolition debris at depths of
approximately 1 foot to 2'/2 feet below existing ground.
• Hand auger borings HA-37, HA-38, and HA-39 were performed within a grassy area on the
south side of the bus loop. These hand auger borings did not encounter demolition debris
within the exploration depths of approximately 3 feet below the existing ground surface.
• Hand auger borings HA-4 through HA-7, HA-12, HA-13, and HA-26 were performed along
the east side of the existing paved parking and drive areas and east of the modular
classroom buildings. These hand auger borings encountered demolition debris at depths of
approximately 1'/2 feet to 2'/2 feet below existing ground surface, with the exception of hand
auger boring HA-13 which did not encounter demolition debris.
• Hand auger borings HA-32 through HA-36 were performed between and around the
modular classroom buildings. These hand auger borings did not encounter demolition
debris within the exploration depths of approximately 3 feet below the existing ground
surface.
• Hand auger borings HA-14 through HA-17 were performed near the 50-foot buffer line from
the eastern property boundary. The hand auger borings encountered demolition debris at
depths of approximately 1 foot to 3'/2 feet below the existing ground surface.
• Hand auger borings HA-28 and HA-29 were performed inside the 50-foot buffer line from
the eastern property boundary. The hand auger borings did not encounter demolition debris
within the exploration depths of approximately 4 feet below the existing ground surface.
• Hand auger borings HA-8 and HA-18 were performed within the interior portion of the site.
The hand auger borings encountered demolition debris at depths of approximately 1'/2 to
2'% feet below the existing ground surface.
• Hand auger borings HA-9, HA-19 through HA-21, and HA-25 were performed along the
crest of the fill slope toward the northeastern portion of the landfill area. The hand auger
borings encountered demolition debris at depths of approximately 2 to 3 feet below the
existing ground surface.
• Hand auger borings HA-10, HA-11, HA-27, HA-30 and HA-31 were performed along the
middle of the fill slope in the northeastern portion of the landfill area. The hand augers did
not encounter demolition debris to depths of up to approximately 6 feet below the existing
ground surface, with the exception of HA-11 which encountered demolition debris at a depth
of approximately 1'/2 feet below the existing surface.
• Hand auger borings HA-22 through HA-24 were performed along the toe of the fill slope in
the northeastern portion of the landfill area. The hand auger borings appeared free of

Report of Engineering Services
Emma Elementary Demolition Landfill Closure
Asheville, Buncombe County, North Carolina
ECS Project No. 31-1742
Page 4
demolition debris to the termination depth of approximately 3 feet below the existing ground
surface.
As a note, hand auger boring HA-6 was terminated shallow due to its proximity to the existing
sewer line. The field crew was made aware of the sewer by the School's maintenance
personnel at the time of our exploration.
The above paragraphs provide a general summary of the subsurface conditions encountered at
the site at the time of our exploration. The Hand Auger Record included in the Appendix
contains more detailed information regarding the subsurface conditions encountered at each
hand auger boring location. The Hand Auger Record represents our visual description of the
samples retrieved during the field exploration. Any stratification depths on the Hand Auger
Record designate approximate boundaries between various subsurface strata. The actual
in -situ transitions are expected to be more gradual.
4.0 CONCLUSIONS
Based on our review of the information provided by the NCDENR Solid Waste Section and the
subsurface data collected at the time of our explorations, we offer the following conclusions:
• Our hand auger borings along the eastern portion of the site indicate that the buried
demolition debris is at least 50 feet away from the eastern property boundary. The location
of the property boundary was estimated from the shoulder of North Louisiana Avenue based
on available parcel data from the Buncombe County GIS web site.
• Within the demolition debris area, the soil cover ranges from approximately 1 foot to 3Yz feet
thick. Of the 20 hand auger locations that encountered debris, two locations had soil cover
of 1 foot thick, four locations had soil cover of 1'h feet thick, and the remaining 14 had soil
cover of 2 feet thick or greater. The average soil cover thickness from our auger locations
was 2.2 feet.
• Based on visual observations of the fill slope at the northeastern portion of the debris area,
the slope appears to be stable. Signs of slope instability such as tension cracks, sloughing,
or previous slope failures were not observed at the time of our exploration. The slope is
vegetated with grass, kudzu, underbrush, and small trees. Site photographs are provided in
the Appendix.
• The two modular classroom buildings appear to be located outside the limits of the
demolition debris. Debris was not encountered in our hand auger borings in this area, nor
indicated on the GPR scans of the area.
The Demolition Landfill area appears to have been adequately sited on the property per the
requirements of General Statute 130A-301.2.
A survey plat of the property has been developed which shows the limits of the Demolition
Landfill, and the plat has been filed with the Buncombe County Register of Deeds office. The
plat has been recorded in Plat Book 132 at Page 63. A copy of the recorded plat is attached to
this report for your records. A copy of the recorded plat and a copy of the property record

Report of Engineering Services
Emma Elementary Demolition Landfill Closure
Asheville, Buncombe County, North Carolina
ECS Project No. 31-1742
Page 5
indicating that the landfill has been noted on the deed should be generated and forwarded to
the NCDENR Solid Waste Section.

APPENDIX
Exploration Location Diagram
Hand Auger Records
Site Photographs
Location Survey for Buncombe County Board of Education

1 v HA-13 11 A-24
737. HA-23 -_
JHA31
HA 1� �h
HA-35 �"1 -_ - H_A-U0 + J.
HA,33 — HA-34 - HA--2_1-
HA-32
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HA-36 7 I I.
HA-26
HA-7 _AND
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HA-3 1
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'AM HA-39
LEGEND © EXPLORATION LOCATION PLAN
Emma Elementary School
HA-1 Hand Auger LocationDemolition Landfill Closure
0 Asheville, North Carolina
c�ao�orasa ECS Project No. 31-1742-A

ECS Carolinas, LLP
200 Ridgefield Court, Suite 222
Asheville, NC 28806
[phone] - Phone
[phone] - Fax
HAND AUGER RECORD
ECS Project No.: 31-1742-A ECS Project Name: Emma Elementary School Demolition Landfill Closure
Date: 2/25/2011 & 8/31111 Technician: JCS/DG
Page: 1 of 4
LOCATION/REMARKS
DEPTH
SOIL DESCRIPTION
HA-1
0-1.5'
Reddish Brown Fine Sandy Clay
1.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Aggregate
HA-2
0-1'
Reddish Brown Fine Sandy Clay
1'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Metal
HA-3
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Metal
HA-4
0-2'
Reddish Brown Fine Sandy Clay
2'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Aggregate
HA-5
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-6
0-1.5'
Reddish Brown Fine Sandy Clay
1.5'
Baring Terminated Due to Proximity of Sewer Line
HA-7
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-8
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-9
0-2'
Reddish Brown Fine Sandy Clay
2'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-10
0-3.5'
Reddish Brown Fine Sandy Clay
3.5'
Boring Terminated Clean
HA-11
0-1.5'
Reddish Brown Fine Sandy Clay
1.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt

ECS Carolinas, LLP
200 Ridgefield Court, Suite 222
Ash
Asheville, NC 28806806
[phone] - Phone
[phone] - Fax 0
�L�IR�Um01A'IGA�
HAND AUGER RECORD
ECS Project No.: 31-1742-A ECS Project Name: Emma Elementary School Demolition Landfill Closure
Date: 2/25/2011 & 8/31/11 Technician: JCS/DG
Page: 2 of 4
LOCATION/REMARKS
DEPTH
SOIL DESCRIPTION
HA-12
0-2'
Reddish Brown Fine Sandy Clay
2'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Aggregate
HA-13
0-3.5'
Reddish Brown Fine Sandy Clay
3.5'
Boring Terminated Clean
HA-14
0-1.5'
Reddish Brown Fine Sandy Clay
1.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-15
0-1'
Reddish Brown Fine Sandy Clay
1'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-16
0-3.5'
Reddish Brown Fine Sandy Clay
3.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Aggregate
HA-17
0-2'
Reddish Brown Fine Sandy Clay
2-2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-18
0-1.5'
Reddish Brown Fine Sandy Clay
1.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-19
0-3'
Reddish Brown Fine Sandy Clay
3'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-20
0-3'
Reddish Brown Fine Sandy Clay
3'
Auger Refusal on Construction Debris Such As Concrete, Asphalt, Aggregate
HA-21
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-22
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean

ECS Carolinas, LLP
200 Ridgefield Court, Suite 222
Asheville, NC 28806
[phone] - Phone
[phone] - Fax
HAND AUGER RECORD
I
LdP
O
ECS Project No.: 31-1742-A ECS Project Name: Emma Elementary School Demolition Landfill Closure
Date: 2/25/2011 & 8131/11
Technician: JCS/DG
Page: 3 of 4
LOCATION/REMARKS
DEPTH
SOIL DESCRIPTION
HA-23
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean
HA-24
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean
HA-25
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-26
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Auger Refusal on Construction Debris Such As Concrete, Asphalt
HA-27
0-3.5'
Reddish Brown Fine Sandy Clay
3.5'
Boring Terminated Clean
HA-28
0-4'
Reddish Brown Fine Sandy Clay
4'
Boring Terminated Clean
HA-29
0-4'
Reddish Brown Fine Sandy Clay
4'
Boring Terminated Clean
HA-30
0-6'
Reddish Brown Fine Sandy Clay
6'
Boring Terminated Clean
HA-31
0-6'
Reddish Brown Fine Sandy Clay
6'
Boring Terminated Clean
HA-32
0-2.5'
Reddish Brown Fine Sandy Clay
2.5'
Boring Terminated Clean
HA-33
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean

ECS Carolinas, LLP
200 Ridgefield Court, Suite 222
Asheville, NC 28806 _ r
[phone] - Phone J dip
[phone] - Fax
HAND AUGER RECORD
ECS Project No.: 31-1742-A ECS Project Name: Emma Elementary School Demolition Landfill Closure
Date: 2/25/2011 & 8/31/11 Technician: JCS/DG
Page
4of4
LOCATION/REMARKS
DEPTH
SOIL DESCRIPTION
HA-34
0-2'
Reddish Brown Fine Sandy Clay
2'
Auger Refusal on Gravel and Rock Fragments
HA-35
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean
HA-36
0-2'
Reddish Brown Fine Sandy Clay with Gravel
2'
Auger Refusal on Gravel and Rock Fragments
HA-37
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean
HA-38
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean
HA-39
0-3'
Reddish Brown Fine Sandy Clay
3'
Boring Terminated Clean

t
Photo 1 — Picture From Southeastern Corner towards Southwestern Corner
Photo 2 — Picture From Southeastern Corner towards Northeastern Corner
EMMA ELEMENTARY
SITE PHOTOGRAPHS � DEMOLITION LANDFILL CLOSURE
i ASHEVILLE, NORTH CAROLINA
o ECS PROJECT No. 31-1742-A
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