11:) TETRA TECHused a Case CX210C hydraulic excavator to remove the contaminated soil, and up to seven dump trucks were used to transfer the excavated soil from the site to the Milam

[ 11:) TETRA TECH

Aprill6, 2013

Ms. Laura Price EPA Project Manager U.S . Environmental Protection Agency, Region 7 11201 Renner Boulevard Lenexa, Kansas 66219

Sub,iec.t: Remov:-~1 Action Report Callahan Property Site (Operable Unit 03 of the Ellisville Site), Wildwood, Missouri CERCLIS ID: MOD980633010 U.S. EPA Region 7 START 3, Contr·act 1'\o. EP-87-06-01, Task Ot·der No. 0316 Task Monitor: Laura Price, EPA Pro.ject Manager

Dear Ms. Price:

Tetra Tech, Inc. is submitting the attached Removal Action Rep01t regarding the Callahan Property site in Wildwood, 1vlissouri. If you have any questions or comments, please contact the project manager at (636) 326-6772, extension 24.

Si;_:~ Christina Engemann

s~p Ted Faile, PG, CHMM START Program Manager

Enclosures

cc: Roy Crossland, START Project Officer (cover letter only)

X9004. 12.0316.000 41 5 Oak Street, K~ns~s City, MO 64 106 Tel 816.412. 1741 Fax 816.410. 1748 www.tetratech.com

REMOVAL ACTION REPORT

CALLAHAN PROPERTY SITE, WILDWOOD, MISSOURI

CERCLIS ID: MOD980633010

Superfund Technical Assessment and Response Team (START) 3 Contract

Contract No. EP-S7-06-01, Task Order No. 0316

Prepared For:

U.S. Environmental Protection Agency

Region 7

11201 Renner Boulevard

Lenexa, Kansas 66219

April 16, 2013

Prepared By:

Tetra Tech, Inc.

415 Oak Street

Kansas City, Missouri 64106

(816) 412-1741

X9004.12.0316.000 i

CONTENTS

Section Page

1.0 INTRODUCTION ........................................................................................................................... 1

2.0 SITE LOCATION AND ENVIRONMENTAL SETTING ............................................................. 1

2.1 SITE GEOLOGY, HYDROLOGY, AND HYDROGEOLOGY ....................................... 1

3.0 SITE HISTORY/PREVIOUS INVESTIGATIONS ........................................................................ 2

4.0 REMOVAL ACTIVITIES ............................................................................................................... 3

4.1 SOIL EXCAVATION AND DISPOSAL ........................................................................... 3

4.2 BACKFILLING AND SITE RESTORATION .................................................................. 7

5.0 SUMMARY ..................................................................................................................................... 7

5.1 REMOVAL CONSIDERATIONS ..................................................................................... 8

5.2 PRE-REMEDIAL CONSIDERATIONS ............................................................................ 8

6.0 REFERENCES ................................................................................................................................ 9

APPENDICES

Appendix

A FIGURES

B PHOTOGRAPHIC DOCUMENTATION

C TABLES

D ANALYTICAL RESULTS

X9004.12.0316.000 1

1.0 INTRODUCTION

The Tetra Tech, Inc. (Tetra Tech) Superfund Technical Assessment and Response Team (START) was

tasked by the U.S. Environmental Protection Agency (EPA) Region 7 Superfund Division to provide

removal support at the Callahan Property site in Wildwood, Missouri. The Callahan Property site is a

sub-site of the Ellisville Superfund site. A removal action (RA) was conducted to address contaminated

soil associated with buried drums previously removed from the site. Illegal burial of the drums (and

possibly other waste materials) was identified in previous investigations as the likely source of soil

contamination at the Callahan Property site. For the RA, START was requested to document removal

activities, conduct real-time air monitoring for volatile organic compounds (VOC), conduct in-situ x-ray

fluorescence (XRF) screening of soils for metals (lead in particular) regulated by the Resource

Conservation and Recovery Act (RCRA), and collect soil samples for laboratory analysis. Analytical

results were compared to EPA Regional Screening Levels (RSL). The START project manager was

Christina Engemann, and the EPA Region 7 Project Manager for the RA was Laura Price.

2.0 SITE LOCATION AND ENVIRONMENTAL SETTING

The City of Ellisville is in the vicinity of the intersection of Missouri Highway (MO)-340 (also known as

Clarkson Road) and MO-100 (also known as Manchester Road) (see Appendix A, Figure 1). The

Callahan Property site (Comprehensive Environmental Response, Compensation, and Liability

Information System [CERCLIS] No. MOD980633010 [for the Ellisville site]) encompasses

approximately 8.3 acres of predominantly wooded land, with a barn adjacent to and east of the area that

was excavated. The Callahan Property site is in Section 31 of Township 45 North, Range 4 East. The

surrounding land use is predominantly for residential housing. The geographic coordinates of the site are

38.596662 degrees north latitude and 90.605733 degrees west longitude.

2.1 SITE GEOLOGY, HYDROLOGY, AND HYDROGEOLOGY

The site is in an area of gently rolling terrain, at an elevation of approximately 680 feet above sea level.

Soils are classified as Goss gravelly silt loam and the Urban land-Harvester complex, and are underlain

by Ordovician rocks (United States Department of Agriculture [USDA] 2013). The thick sequence of

Ordovician strata mostly consists of dolomite and limestone interbedded with minor sandstone and shale,

and includes a large number of geologic formations (United States Geological Survey [USGS] 1997).

Runoff from the site drains via two drainage routes toward Caulk’s Creek, approximately 0.5 mile

southwest of the site. The depth to the water table was observed through multiple static water level

X9004.12.0316.000 2

measurements taken from the three monitoring wells located on site, with measurements ranging from 78

to 124 feet below ground surface (Missouri Department of Natural Resources [MDNR] 2012).

The Ozark Plateaus aquifer system extends throughout most of southern Missouri and consists of three

aquifers separated by two confining units, all in consolidated rocks of Paleozoic age. The uppermost

aquifer is in Mississippian carbonate rocks; stratigraphically equivalent carbonate rocks in northern

Missouri are called the “Mississippian aquifer.” The middle aquifer of the Ozark Plateaus aquifer system

is in carbonate rocks of Cambrian and Ordovician age, and the lowermost aquifer in the system is in

Cambrian sandstones. The confining units that separate the aquifers are dolomite and shale. Water in the

Ozark Plateaus aquifer system is unconfined in and just downgradient of aquifer outcrop areas but is

confined elsewhere (USGS 1997).

Groundwater in the Ozark Plateaus aquifer system locally moves from topographically high recharge

areas to lower discharge areas such as streams. Regional movement is northwestward, eastward, and

southward from the St. Francois Mountains and other topographically high areas in southern Missouri

(USGS 1997).

3.0 SITE HISTORY/PREVIOUS INVESTIGATIONS

In August 1980, MDNR received a report of illegal dumping at the Callahan Property site. A followup

investigation revealed a disposal area of approximately 150 by 150 feet, containing buried drums and

possibly other waste materials. During further investigations, several drums were unearthed and sampled.

These activities determined the drums contained paint-related wastes and solvents. MDNR subsequently

requested assistance from EPA Region 7 to address the buried drums, and an RA was immediately

initiated. The RA occurred from December 1981 through February 1982, when 1,205 drums were

removed from the disposal area. Of these, 613 were overpacked and staged in two areas of the site for

off-site disposal. Approximately 500 cubic yards of excavated soil was returned to the former drum

burial area as backfill (Tetra Tech EM Inc. 2005).

Since the RA, followup investigations at the site have addressed public concerns regarding residual

contamination, including an investigation by Black & Veatch Engineers–Architects (Black & Veatch) in

December 1982. This investigation included sampling of soils from the former drum burial and storage

areas, and collection of surface water samples downgradient of those areas. Analytical results from these

samples did not indicate any significant contamination (Black & Veatch 1983). A Phase II

Environmental Site Assessment (ESA) by Brucker Engineering, Ltd., in 1999, included a magnetometer

survey and exploratory trenching in the burial area, drum storage areas, and drainage routes downgradient

X9004.12.0316.000 3

of the burial area. No significant contamination was identified during the ESA (Brucker Engineering,

Ltd. 1999). However, because of the limited scope of these investigations and apparent gaps in the data,

the City of Wildwood, on behalf of the local residents, requested a more comprehensive study to

determine whether any contamination remained at the site (Tetra Tech EM Inc. 2005).

From January 31 through February 2, 2005, Tetra Tech START performed a magnetometer survey and

monitored site activities for a Removal Site Evaluation (RSE) conducted by MDNR―including sampling

of soil, sediment, and interior dust. The purpose of the RSE was to determine whether any residual

contamination remained at the site that warranted further Superfund response, following the RA

conducted in 1981-1982. Based on analytical results from samples collected during the investigation,

elevated levels of lead, semi-volatile organic compounds (SVOC), and VOCs were identified in

subsurface soils at the former drum burial area (Tetra Tech EM Inc. 2005).

4.0 REMOVAL ACTIVITIES

EPA-funded removal activities were conducted at the site from November 12 through early

December 2012, by Environmental Restoration LLC (ER), the EPA Region 7 Emergency and Rapid

Response Services (ERRS) contractor. Photographic documentation of the site activities is in

Appendix B. RA activities included removal and disposal of contaminated soil, backfilling excavated

areas, and site restoration. Summaries of analytical results for samples collected during the RA are

included in tables in Appendix C.

4.1 SOIL EXCAVATION AND DISPOSAL

Prior to excavation, a composite soil sample was collected from the site by START on

November 12, 2012, for full Code R analyses, including the Toxicity Characteristic Leaching Procedure

(TCLP). These data would be evaluated to ensure the soil was suitable for disposal at a municipal solid

waste landfill. The sample was collected from hand-dug test pits and an existing stockpile. START used

shovels to dig five test pits to depths of approximately 2 feet below ground surface in the area to be

excavated. A stainless steel spoon was used to collect aliquots of soil from three depths in each test pit.

In addition, four aliquots of soil were collected from the stockpile at equally spaced intervals. All of these

aliquots were placed in a disposable Ziplock bag and homogenized. The composite sample was

homogenized and transferred to a 32-ounce jar with proper labeling, and then ER submitted the sample to

Teklab, Inc. for analysis. The analytical results were provided to the Milam Landfill in East St. Louis,

Illinois, and the soil was determined acceptable for disposal at their facility.

X9004.12.0316.000 4

Excavation of contaminated soil occurred at the site from November 27 through December 6, 2012. ER

used a Case CX210C hydraulic excavator to remove the contaminated soil, and up to seven dump trucks

were used to transfer the excavated soil from the site to the Milam Landfill. During excavation, START

monitored the extent of soil contamination by obtaining real-time readings for VOCs using a

photoionization detector (PID), and for metals (lead in particular) using an XRF spectrometer, once visual

indications of contamination were no longer observed. The XRF readings for lead from the west wall

ranged from non-detect to 8,302 parts per million (ppm) in an area of dark gray staining. As excavation

of the west wall continued (due to the elevated lead levels), liquid was observed draining from the wall.

PID readings directly above the liquid reached 109 ppm. During further screening of the west wall, an

additional area of high lead levels (437 to 2,154 ppm) was observed, with VOC readings of approximately

400 ppm. PID readings from the east wall ranged from 0 to 0.5 ppm. The XRF readings for lead from

the east wall ranged from less than 36 to 1,004 ppm. The final excavated area was approximately 21 feet

long on the south, 75 feet on the east, 70 feet on the north, and 82 feet on the west. The depth of the

excavated area ranged from 5 to 15 feet.

The PID was also used for real-time air monitoring to ensure VOCs generated during the excavation

activities did not reach levels above acceptable criteria within both the area immediately surrounding the

excavation pit, as well as along the site perimeter adjacent to residential properties bordering the site. A

DataRAM aerosol monitor was also used for real-time air monitoring for particulate matter. PID readings

ranged from 0 to 8.7 ppm within areas immediately surrounding the excavation pit, and from 0 to 1.5 ppm

along the site perimeter near residential properties. DataRAM readings were all less than 30 micrograms

per cubic meter (µg/m3) near the excavation zone—only slightly above background readings of

approximately 10 to 20 µg/m3. A personal air sampler was also used to measure lead concentrations in

the breathing zone of workers during excavation activities (sample CA-PERAIR-Pb). Elevated levels of

lead in the breathing zone were not observed. The concentration of lead observed on the filter sample

was < 0.00039 milligrams per cubic meter (mg/m3). A copy of the analytical results is in Appendix D.

During the excavation process, an attempt was made to remove a previously installed 91-foot-deep

monitoring well (MW-C01) from the excavation area. After multiple attempts to remove the well, the

polyvinyl chloride (PVC) riser pipe was cut off and the well was plugged to preclude entry of

contaminated soil into the well that could reach the water table. The plugging occurred in stages. First,

approximately 35 pounds (lbs) of medium bentonite chips was added to the well and topped with 4

gallons of water. Then, another 35 lbs of medium bentonite chips was added to the well and topped with

2 gallons of water, followed by an additional 15 lbs of bentonite and 2 gallons of water to completely fill

the well.

X9004.12.0316.000 5

Post-excavation soil samples were collected by START from the south portion of the excavated area, and

sample collection proceeded north. Post-excavation samples were collected from the perimeter walls of

the excavated area for cleanup confirmation analysis (see Appendix A, Figure 2). During the RA, seven

post-excavation soil samples were collected―one from the south wall (CA-SW-01) and two from each

remaining wall of the excavated area (CA-EW-01, CA-EW-02, CA-WW-01,CA-WW-02, CA-NW-01,

and CA-NW-02). The south wall sample, CA-SW-01, was collected from the entire length of the wall,

which was approximately 21 feet long and 6 feet deep. The highest PID reading at the south wall at the

time of sampling was 0.6 ppm, and XRF readings for lead ranged from 86 to 277 ppm. A sample from

the southern portion of the east wall (CA-EW-01) was collected within an area approximately 45 feet long

and 5 to 10 feet deep, and a sample from the northern portion of the east wall (CA-EW-02) was collected

within an area approximately 30 feet long and 10 to 15 feet deep. The highest PID reading within the

area sampled as CA-EW-01 was 0.5 ppm, and XRF readings for lead ranged from 55 to 908 ppm. VOCs

were not detected via the PID within the area sampled as CA-EW-02, and XRF readings for lead ranged

from 54 to 192 ppm. A sample from the southern portion of the west wall (CA-WW-01) was collected

within an area approximately 32 feet long and 5 to 10 feet deep, and a sample from the northern portion

of the west wall (CA-WW-02) was collected within an area approximately 50 feet long and at a depth of

approximately 10 feet. The highest PID reading within the area sampled as CA-WW-01 was 2.0 ppm,

and XRF readings for lead ranged from 34 to 395 ppm. The highest PID reading within the area sampled

as CA-WW-02 was 0.6 ppm, and XRF readings for lead ranged from 40 to 413 ppm. A sample from the

western portion of the north wall (CA-NW-01) was collected within an area approximately 45 feet long

and 5 to 12 feet deep, and a sample from the eastern portion of the north wall (CA-NW-02) was collected

within an area approximately 25 feet in length and 3 to 12 feet deep. VOCs were not detected via the PID

within the area sampled as CA-NW-01, and XRF readings for lead ranged from 73 to 272 ppm. VOCs

were not detected via the PID within the area sampled as CA-NW-02, and XRF readings for lead ranged

from less than 34 to 157 ppm.

The soil samples were collected from the excavation for laboratory confirmation analysis. One grab

sample was collected from the south wall, and two grab samples were collected from each remaining wall

of the excavated area, following EPA Method 5035 for analysis for VOCs. This involved placing

approximately 5 grams of soil into two 40-milliliter (mL) volatile organic analysis (VOA) vials

pre-preserved with sodium bisulfate, and packing an additional laboratory-supplied container with soil for

determination of percent solids. In addition, one five-aliquot composite sample was collected from the

south wall, and two five-aliquot composite samples were collected from each remaining wall of the

excavated area using disposable stainless steel spoons. Aliquots for each post-excavation soil sample

X9004.12.0316.000 6

were collected at various elevations from the walls of the excavation pit, including two aliquots from the

top, one aliquot from the middle, and two aliquots from the bottom of each wall section. (The bottom of

the pit was excavated to bedrock; therefore, no post-excavation samples of the floor of the pit were

collected.) The composite samples were homogenized in disposable Ziplock bags and placed in 8-ounce

jars for analyses for SVOCs, RCRA metals, and polychlorinated biphenyls (PCB). All soil samples were

stored in coolers and submitted to TestAmerica laboratory in Earth City, Missouri, or Teklab, Inc. in

Collinsville, Illinois, on the day these were collected.

One sample of stained soil that had an odor (CA-SOIL-01) was collected from the floor of the excavation

pit along the west wall. The grab sample was analyzed for VOCs and SVOCs. The highest PID reading

for VOCs in this area of the pit was 8.4 ppm. A PID reading of 82.5 ppm was detected in the headspace

of a sample jar containing the soil sample for analysis for SVOCs. XRF readings of the soil sample for

lead were all below 70 ppm.

Overburden removed from the top, western portion of the excavation area was stockpiled for use as

backfill material. The overburden was screened with the PID and XRF spectrometer, and sampled

(CA-OVRSTK-01) for analyses for VOCs and SVOCs. All PID readings were 0 ppm, and XRF readings

ranged from 124 to 415 ppm. The sample to be analyzed for VOCs was collected (in accordance with

EPA Method 5035) from the stockpile after the surface soil had been removed and placed into VOA vials

pre-preserved with sodium bisulfate. Additional soil was placed in another container for determination of

percent solids. A seven-aliquot composite sample for SVOCs analysis was also collected from inside the

stockpile with a shovel, placed into a disposal Ziplock bag, homogenized, and transferred to an 8-ounce

jar.

Analytical results for all soil samples were compared to EPA RSLs. All results were below RSLs except

those for arsenic in the walls of the excavation pit. However, all arsenic results were below the average

concentration of 10.561 ppm for St. Louis County soils (USGS 2012). Appendix C summarizes all soil

sample results, and Appendix D includes the complete laboratory data submittals.

Excavation of contaminated soil was completed on December 6, 2012. In all, 2,056.74 tons of

contaminated soil and debris, including drum fragments and metal pieces, was excavated and transported

to the Milam Landfill in East St. Louis, Illinois, for proper disposal as “special waste.” The landfill

accepted the waste based on disposal characterization sampling results (from November 2012), which had

indicated that contaminated soil at the site did not contain hazardous constituents above acceptable levels

or leach constituents above corresponding regulatory TCLP limits.

X9004.12.0316.000 7

4.2 BACKFILLING AND SITE RESTORATION

Following completion of excavation, site activities shifted to backfilling and site restoration. One grab

sample of backfill material (CAL-BF-1) was collected by ER, and one grab sample of off-site topsoil

(CA-TPSL-01) was collected by Tetra Tech, to confirm these did not contain contaminants above levels

of concern. Those samples were analyzed for VOCs, SVOCs, and RCRA metals. The backfill and

topsoil samples did not contain any contaminants above RSLs except for arsenic. However, all arsenic

results were below the average concentration of 10.561 ppm for St. Louis County soils (USGS 2012).

Therefore, the pit was filled with stockpiled overburden from the excavated area, off-site backfill soil, and

topsoil.

Following completion of backfilling, the site was restored in accordance with agreements between EPA

and the property owner. The excavated area was completed with a swale that included rip rap to serve as

a drainage route, while the remaining portion of the site property was restored by hydroseeding. The

swale was approximately 8 feet wide by 150 feet long, and the rock used for rip rap was 6- to 8-inch

Gabien stone. Following completion of site restoration activities, the removal action was considered

complete.

5.0 SUMMARY

EPA tasked Tetra Tech START to provide RA support at the Callahan Property site in Wildwood,

Missouri, where contaminated soils had been identified. The Callahan Property site is a sub-site of the

Ellisville Superfund site. The RA was conducted to address contaminated soil associated with buried

drums previously removed from the site. Illegal burial of the drums and possibly other waste materials

had been identified in previous investigations as the likely source of soil contamination at the Callahan

Property site.

Excavation of contaminated soil occurred at the site from November 27 through December 6, 2012. A

total of 2,056.74 tons of contaminated soil was excavated and transported to the Milam Landfill in East

St. Louis, Illinois, for proper disposal. Soil samples were collected from perimeter walls of the excavated

area for laboratory analysis to confirm that cleanup goals had been achieved. These included one sample

from the south wall, and two samples from each of the east, west, and north walls. The bottom of the pit

was excavated to bedrock; therefore, no post-excavation samples of the floor of the pit were collected.

All post-excavation samples, as well as an overburden stockpile sample, stained and odiferous soil

sample, and off-site backfill and topsoil samples, contained concentrations of hazardous constituents

below corresponding RSLs, except for arsenic. However, the arsenic concentrations were below the

X9004.12.0316.000 8

average concentration of arsenic in St. Louis County soils (USGS 2012). Removal activities were

completed in mid-December 2012, after site restoration activities had been completed in accordance with

agreements between EPA and the owner of the site property.

5.1 REMOVAL CONSIDERATIONS

The RA described in this report involved excavation and proper disposal of 2,056.74 tons of contaminated

soil as special waste. Because the primary source of contaminated soil (buried drums/wastes) had been

removed during previous site activities, and this RA involved removal of contaminated soil associated

with the buried wastes, no conditions are known to exist that would warrant further removal activities.

5.2 PRE-REMEDIAL CONSIDERATIONS

Pre-remedial issues have been evaluated in previous site assessment reports completed by MDNR and

contractors for EPA. Other than removing contaminated soil from the source area, no activities were

conducted during the RA, and no new information was obtained that would likely impact previous pre-

remedial determinations regarding the Callahan Property site.

X9004.12.0316.000 9

6.0 REFERENCES

Black & Veatch Engineers–Architects (Black & Veatch). 1983. “Remedial Feasibility Study, Ellisville

Hazardous Waste Disposal Site, Ellisville, Missouri.” Project No. 9860.EF1. Prepared for EPA,

Cincinnati, Ohio. September 28.

Brucker Engineering, Ltd. 1999. “Phase II Environmental Assessment, 210 Strecker Road, Wildwood,

Missouri.” Prepared for James Properties, Inc. December.

Missouri Department of Natural Resources (MDNR). 2012. “Monitoring Well Installation Report,

Strecker Forest and Callahan Properties, Ellisville Site, St. Louis County, Missouri.” January 17.

Tetra Tech EM Inc. 2005. Removal Site Evaluation Report, Callahan Property Site – Wildwood,

Missouri, CERCLIS ID No.: MOD980633010, Superfund Technical Assessment and Response

Team, Contract No. 68-S7-01-41, Task Order No. 0194. August 5.

U.S. Department of Agriculture (USDA) in cooperation with the Soil Conservation Service. 2013.

WebSoil Survey. On-line address: http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx.

Accessed: February 2013.

U.S. Geological Survey (USGS). 1997. Groundwater Atlas of the United States: Kansas, Missouri, and

Nebraska. On-line address: http://pubs.usgs.gov/ha/ha730/gwa.html. Accessed: February 2013.

USGS. 2012. National Geochemical Survey, NGS Geochemistry by County. On-line address:

http://mrdata.usgs.gov/geochem/county.php?place=f29189&el=As&rf=central. Accessed:

February 2013.

http://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspxhttp://pubs.usgs.gov/ha/ha730/gwa.htmlhttp://mrdata.usgs.gov/geochem/county.php?place=f29189&el=As&rf=central

APPENDIX A

FIGURES

St. Louis County

Source: USGS Eureka, MO 7.5 Minute Topo Quad, 1993 USGS Manchester, MO 7.5 Minute Topo Quad, 1993

Callahan Property Site210 Strecker RoadWildwood, Missouri 63005

Date: 10/17/12 Drawn By: Nick Wiederholt Project No: X9004.L.12.0316.000

Figure 1Site Location Map

Site Location

X:\G\90

04\031

6\000\

Project

s\mxd\

Figure

1.mxd

0 1,000 2,000Feet

Strecker Road

Staging Area

CA-NW-02CA-EW-02

CA-EW-01

CA-SW-01

CA-WW-01

CA-WW-02

CA-NW-01

Source: ArcGIS Online, Bing Maps Aerial, 2012

Figure 2Callahan Property Site210 Strecker RoadWildwood, Missouri 63005

Site Map and Sample LocationsDate: 02/18/13 Drawn By: Nick Wiederholt Project No: X9004.L.12.0316.000X:\G

\9004\

0316\0

00\Pro

jects\m

xd\Fig

ure2.m

xd

LegendComposite soil sampling location

CA-EW-01CA-EW-02CA-NW-01

CA-NW-02CA-SW-01CA-WW-01CA-WW-02

Access roadApproximateexcavation area

0 30 60Feet

APPENDIX B

PHOTOGRAPHIC DOCUMENTATION

Callahan Property SiteWildwood, Missouri

1

TETRA TECHPROJECT NO.

X9004.12.0316.000

DESCRIPTION This photograph shows the entrance to the Callahan Property site from Strecker Road. 1

CLIENT Environmental Protection Agency Region 7 Date

Direction: North PHOTOGRAPHER Christina Engemann 11-26-12


X9004.12.0316.000



Direction: Northwest PHOTOGRAPHER Christina Engemann 11-26-12


2


X9004.12.0316.000



Direction: East PHOTOGRAPHER Christina Engemann 11-26-12


X9004.12.0316.000

DESCRIPTION This photograph shows Strecker Road west of the entrance to the Callahan Property site. 4


Direction: West PHOTOGRAPHER Christina Engemann 11-26-12


3


X9004.12.0316.000

DESCRIPTION This photograph shows the Callahan Property site entrance, looking south from Strecker Road. 5


Direction: South PHOTOGRAPHER Christina Engemann 11-26-12


X9004.12.0316.000

DESCRIPTION This photograph shows equipment on the Callahan Property site to be used for excavation. A monitoring well that was removed is also visible.

6


Direction: East PHOTOGRAPHER Dave Kinroth 11-27-12


4


X9004.12.0316.000

DESCRIPTION This photograph shows the beginning of excavation at the Callahan Property site. 7


Direction: West PHOTOGRAPHER Dave Kinroth 11-27-12


X9004.12.0316.000

DESCRIPTION This photograph shows the beginning of excavation at the Callahan Property site. 8




5


X9004.12.0316.000

DESCRIPTION This photograph shows the excavation of contaminated soil at the Callahan Property site, and real-time air monitoring instrumentation.

9


Direction: North PHOTOGRAPHER Dave Kinroth 11-27-12


X9004.12.0316.000

DESCRIPTION This photograph shows the southeast portion of the excavated area at the Callahan Property site. 10


Direction: Southeast PHOTOGRAPHER Dave Kinroth 11-27-12


6


X9004.12.0316.000

DESCRIPTION This photograph shows the southern portion of the excavated area at the Callahan Property site. 11




X9004.12.0316.000

DESCRIPTION This photograph shows typical metal drum fragments found throughout the excavated area. 12




7


X9004.12.0316.000

DESCRIPTION This photograph shows real-time air monitoring instrumentation near the western edge of the Callahan Property site during excavation activities.

13




X9004.12.0316.000

DESCRIPTION This photograph shows the removal of monitoring well MW-C01 from the Callahan Property site during excavation activities. 14




8


X9004.12.0316.000

DESCRIPTION This photograph shows stained soils and two drums (not intact) uncovered during excavation activities. 15


Direction: East PHOTOGRAPHER Dave Kinroth 11-27-12


X9004.12.0316.000

DESCRIPTION This photograph shows the site during excavation activities. Stained soil is evident in this photograph. 16


Direction: North PHOTOGRAPHER Dave Kinroth 11-28-12


9


X9004.12.0316.000

DESCRIPTION This photograph shows Emergency and Rapid Response Services (ERRS) contractor personnel plugging monitoring well MW-C01.

17




X9004.12.0316.000

DESCRIPTION This photograph shows the southern wall of the excavated area, where sample CA-SW-01 was collected. 18




10


X9004.12.0316.000

DESCRIPTION This photograph shows stained soils observed during excavation activities. 19


Direction: Southwest PHOTOGRAPHER Christina Engemann 11-29-12


X9004.12.0316.000

DESCRIPTION This photograph shows stained soil, which was sampled for laboratory analysis (CA-SOIL-01). 20




11


X9004.12.0316.000

DESCRIPTION This photograph shows liquid seeping from the western wall of the excavated pit. A photoionization detector (PID) reading of 109 parts per million (ppm) was observed above the liquid.

21




X9004.12.0316.000

DESCRIPTION This photograph shows the access road from the staging area to the excavated pit. 22




12


X9004.12.0316.000

DESCRIPTION This photograph shows the northern extent of the excavation on November 29, 2012. 23


Direction: Northeast PHOTOGRAPHER Christina Engemann 11-29-12


X9004.12.0316.000

DESCRIPTION This photograph shows silt fencing and the sloped southern wall intended to control runoff from the excavation pit during a possible rain event.

24




13


X9004.12.0316.000

DESCRIPTION This photograph shows the truck loading area at the northeast edge of the excavated pit. 25




X9004.12.0316.000

DESCRIPTION This photograph shows the remaining polyvinyl chloride (PVC) well casing of the abandoned monitoring well (MW-C01). 26




14


X9004.12.0316.000

DESCRIPTION This photograph shows the stockpile of overburden soil removed from the excavated area and believed to be free of contamination. Sample CA-OVRSTK-01 was collected from this soil.

27




X9004.12.0316.000

DESCRIPTION This photograph shows the west wall of the excavated pit. Sample CA-WW-01 was collected south of the southernmost white line on the wall.

28




15


X9004.12.0316.000

DESCRIPTION This photograph shows the southern portion of the east wall, where sample CA-EW-01 was collected. 29


Direction: Southeast PHOTOGRAPHER Christina Engemann 11-30-12


X9004.12.0316.000

DESCRIPTION This photograph shows the northern portion of the west wall, where sample CA-WW-02 was collected. 30




16


X9004.12.0316.000

DESCRIPTION This photograph shows a pile of excavated soil covered with plastic sheeting to prevent contaminated runoff. 31




X9004.12.0316.000

DESCRIPTION This photograph was looking north along the east wall of the excavated pit from the southeast corner of the pit. 32




17


X9004.12.0316.000

DESCRIPTION This photograph was looking west along the south wall of the excavated pit from the southeast corner of the pit. 33




X9004.12.0316.000

DESCRIPTION This photograph was looking north across the excavated pit from the south wall. 34




18


X9004.12.0316.000

DESCRIPTION This photograph was looking north along the west wall of the excavated pit from the southwest corner of the pit. 35




X9004.12.0316.000

DESCRIPTION This photograph shows the portion of the east wall, where sample CA-EW-02 was collected (between the white lines). 36




19


X9004.12.0316.000

DESCRIPTION This photograph was looking north along the west wall of the excavated pit from the southwest corner of the pit. 37




X9004.12.0316.000

DESCRIPTION This photograph was looking south along the west wall of the excavated pit from the northwest corner of the pit. 38




20


X9004.12.0316.000

DESCRIPTION This photograph was looking east along the north wall of the excavated pit from the northwest corner of the pit. 39




X9004.12.0316.000

DESCRIPTION This photograph was looking west along the north wall of the excavated pit from the northeast corner of the pit. 40




21


X9004.12.0316.000

DESCRIPTION This photograph shows the east portion of the north wall, where sample CA-NW-02 was collected. 41




X9004.12.0316.000

DESCRIPTION This photograph was looking east along the north wall of the excavated pit from the northwest corner of the pit, after excavation had been completed.

42




22


X9004.12.0316.000

DESCRIPTION This photograph was looking east along the north wall of the excavated pit from the northwest corner of the pit, after excavation had been completed.

43




X9004.12.0316.000

DESCRIPTION This photograph was looking west along the north wall of the excavated pit from the northeast corner of the pit, after excavation had been completed.

44




23


X9004.12.0316.000

DESCRIPTION This photograph was looking south along the east wall from the northeast corner of the excavated pit, after excavation had been completed.

45




X9004.12.0316.000

DESCRIPTION This photograph was looking north along the east wall toward the northeast corner, after excavation had been completed. 46




24


X9004.12.0316.000

DESCRIPTION This photograph shows transfer of the overburden soil to backfill the excavated pit. 47




X9004.12.0316.000

DESCRIPTION This photograph shows transfer of the overburden soil to backfill the excavated pit. 48




25


X9004.12.0316.000

DESCRIPTION This photograph shows the roadway north-northeast from the staging area to Strecker Road. 49




X9004.12.0316.000

DESCRIPTION This photograph shows the staging area. 50


Direction: Southeast PHOTOGRAPHER Christina Engemann 12-06-12


26


X9004.12.0316.000

DESCRIPTION This photograph shows the access road from the staging area to the excavated pit. 51




X9004.12.0316.000

DESCRIPTION This photograph shows the excavator in the pit, following completion of soil excavation. 52




27


X9004.12.0316.000

DESCRIPTION This photograph shows the excavator within the pit. 53




X9004.12.0316.000

DESCRIPTION This photograph shows the excavated area following backfilling. 54


Direction: Southwest PHOTOGRAPHER Laura Price 12-13-12


28


X9004.12.0316.000

DESCRIPTION This photograph shows the silt fence and rip rap installed by ERRS at the backfilled excavated area. 55


Direction: West PHOTOGRAPHER Laura Price 12-13-12


X9004.12.0316.000

DESCRIPTION This photograph shows the silt fence and rip rap installed by ERRS. 56


Direction: East PHOTOGRAPHER Laura Price 12-13-12


29


X9004.12.0316.000



Direction: South PHOTOGRAPHER Laura Price 12-13-12


X9004.12.0316.000



Direction: North PHOTOGRAPHER Laura Price 12-13-12


30


X9004.12.0316.000

DESCRIPTION This photograph shows ERRS hydroseeding a portion of the backfilled area. 59


Direction: Southwest PHOTOGRAPHER Laura Price 12-14-12


X9004.12.0316.000

DESCRIPTION This photograph shows part of the hydroseeded area. 60


Direction: West PHOTOGRAPHER Laura Price 12-14-12


31


X9004.12.0316.000



Direction: Southeast PHOTOGRAPHER Laura Price 12-14-12


X9004.12.0316.000



Direction: South PHOTOGRAPHER Laura Price 12-14-12

APPENDIX C

TABLES

TABLE C-1

SOUTH WALL SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE

Analyte Sample Date Sample ID Regional Screening Level - ResidentialRegional Screening Level -

Industrial Sample Result

Benzene 11/29/2012 CA-SW-01 1,100 5,400 0.69 JEthylbenzene 11/29/2012 CA-SW-01 5,400 27,000 2.8 JIsopropylbenzene 11/29/2012 CA-SW-01 2,100,000 11,000,000 0.55 JMethylene chloride 11/29/2012 CA-SW-01 56,000 960,000 4.4 Jm-Xylene & p-Xylene 11/29/2012 CA-SW-01 595,000* 2,550,000* 12o-Xylene 11/29/2012 CA-SW-01 690,000 3,000,000 3.7 JTetrachloroethene 11/29/2012 CA-SW-01 22,000 110,000 1.1 JToluene 11/29/2012 CA-SW-01 5,000,000 45,000,000 120Xylenes, Total 11/29/2012 CA-SW-01 630,000 2,700,000 16

Bis(2-ethylhexyl)phthalate 11/29/2012 CA-SW-01 35 120 4.1Di-n-butyl phthalate 11/29/2012 CA-SW-01 6,100 62,000 0.582,4-Dimethylphenol 11/29/2012 CA-SW-01 1,200 12,000 0.27 JDimethyl phthalate 11/29/2012 CA-SW-01 NA NA 0.21 JFluorene 11/29/2012 CA-SW-01 2,300 22,000 0.058 JIsophorone 11/29/2012 CA-SW-01 510 1,800 0.15 J2-Methylnaphthalene 11/29/2012 CA-SW-01 230 2,200 0.074 J2-Methylphenol 11/29/2012 CA-SW-01 6,100 62,000 0.18 J3- & 4-Methylphenol 11/29/2012 CA-SW-01 6,100 62,000 0.14 JNaphthalene 11/29/2012 CA-SW-01 3.6 180 0.29 JPhenol 11/29/2012 CA-SW-01 18,000 180,000 1.1Benzyl alcohol 11/29/2012 CA-SW-01 6,100 62,000 0.14 J

Arsenic 11/29/2012 CA-SW-01 0.39 1.6 5Barium 11/29/2012 CA-SW-01 15,000 190,000 140Cadmium 11/29/2012 CA-SW-01 70 800 3.1Chromium 11/29/2012 CA-SW-01 NA** NA** 39Lead 11/29/2012 CA-SW-01 400 800 200 BMercury 11/29/2012 CA-SW-01 10 43 0.12

PCB-1248 11/29/2012 CA-SW-01 220 740 50PCB-1260 11/29/2012 CA-SW-01 220 740 47PCBs, Total 11/29/2012 CA-SW-01 220 740 97

Notes:

Shaded value indicates the sample result was above the Residential Soil Screening Level Bolded value indicates the sample result was above the Industrial Soil Screening Leve* = Average of m-Xylene and p-Xylene** = Screening levels are not established for total chromiumID = Identificationµg/kg = Micrograms per kilogrammg/kg = Milligrams per kilogramNA = Screening level not availablePCB = Polychlorinated biphenylSVOC = Semi-volatile organic compoundVOC = Volatile organic compound

Qualifiers:B = Compound was also found in the blank sampleJ = Result is less than the reporting limit but greater than or equal to the method detection limit, and the concentration is an approximate value

VOCs (µg/kg)

SVOCs (mg/kg)

Metals (mg/kg)

PCBs (µg/kg)

1 of 1

TABLE C-2

EAST WALL SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



1,3,5-Trimethylbenzene 11/30/2012 CA-EW-02 780,000 10,000,000 10.3Acetone 12/5/2012 CA-EW-02 61,000,000 630,000,000 32 JBenzene 12/5/2012 CA-EW-02 1,100 5,400 3Ethyl ether 12/5/2012 CA-EW-02 16,000,000 200,000,000 3.6 J

11/30/2012 CA-EW-01 5,400 27,000 2.1 J12/5/2012 CA-EW-02 5,400 27,000 1.3 J

11/30/2012 CA-EW-01 2,100,000 11,000,000 0.28 J12/5/2012 CA-EW-02 2,100,000 11,000,000 2.8 J

Methylene chloride 12/5/2012 CA-EW-02 56,000 960,000 11.611/30/2012 CA-EW-01 595,000* 2,550,000* 7.812/5/2012 CA-EW-02 595,000* 2,550,000* 4.7 J

11/30/2012 CA-EW-01 690,000 3,000,000 3.9 J12/5/2012 CA-EW-02 690,000 3,000,000 1.4 J

11/30/2012 CA-EW-01 22,000 110,000 2.7 J12/5/2012 CA-EW-02 22,000 110,000 1.5 J

11/30/2012 CA-EW-01 5,000,000 45,000,000 1012/5/2012 CA-EW-02 5,000,000 45,000,000 10.6

Xylenes, Total 11/30/2012 CA-EW-01 630,000 2,700,000 12

11/30/2012 CA-EW-01 35 120 4.212/5/2012 CA-EW-02 35 120 0.875

Butyl benzyl phthalate 11/30/2012 CA-EW-01 260 910 0.12 JDi-n-butyl phthalate 11/30/2012 CA-EW-01 6,100 62,000 2.22,4-Dimethylphenol 11/30/2012 CA-EW-01 1,200 12,000 0.044 JDimethyl phthalate 11/30/2012 CA-EW-01 NA NA 0.071 JFluorene 11/30/2012 CA-EW-01 2,300 22,000 0.068 J

11/30/2012 CA-EW-01 510 1,800 0.412/5/2012 CA-EW-02 510 1,800 0.15 J

2-Methylphenol 11/30/2012 CA-EW-01 6,100 62,000 0.074 J3- & 4-Methylphenol 11/30/2012 CA-EW-01 6,100 62,000 0.079 JNaphthalene 11/30/2012 CA-EW-01 3.6 180 0.055 Jo-Cresol 12/5/2012 CA-EW-02 3,100 31,000 0.14 JPhenol 11/30/2012 CA-EW-01 18,000 180,000 0.28 JBenzyl alcohol 11/30/2012 CA-EW-01 6,100 62,000 0.059 J

11/30/2012 CA-EW-01 0.39 1.6 5.912/5/2012 CA-EW-02 0.39 1.6 6.94

11/30/2012 CA-EW-01 15,000 190,000 15012/5/2012 CA-EW-02 15,000 190,000 180

11/30/2012 CA-EW-01 70 800 0.93 J12/5/2012 CA-EW-02 70 800 0.47

11/30/2012 CA-EW-01 NA** NA** 2312/5/2012 CA-EW-02 NA** NA** 20.5

11/30/2012 CA-EW-01 400 800 11012/5/2012 CA-EW-02 400 800 72.8

Mercury 12/5/2012 CA-EW-02 10 43 0.025Selenium 12/5/2012 CA-EW-02 390 5,100 < 3.70Silver 12/5/2012 CA-EW-02 390 5,100 < 0.051

Lead

Bis(2-ethylhexyl)phthalate

Isophorone

Arsenic

Barium

Cadmium

Chromium

VOCs (µg/kg)

SVOCs (mg/kg)

Metals (mg/kg)

Ethylbenzene

Isopropylbenzene

m-Xylene & p-Xylene

o-Xylene

Tetrachloroethene

Toluene

1 of 2

TABLE C-2

EAST WALL SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



PCB-1248 11/30/2012 CA-EW-01 220 740 87PCB-1260 11/30/2012 CA-EW-01 220 740 30 JPCBs, Total 11/30/2012 CA-EW-01 220 740 120

Notes:

Shaded value indicates the sample result was above the Residential Soil Screening Level Bolded value indicates the sample result was above the Industrial Soil Screening Level* = Average of m-Xylene and p-Xylene** = Screening levels are not established for total chromium< = Less thanID = Identificationµg/kg = Micrograms per kilogrammg/kg = Milligrams per kilogramNA = Screening level not availablePCB = Polychlorinated biphenylSVOC = Semi-volatile organic compoundVOC = Volatile organic compound

Qualifier:J = Result is less than the reporting limit but greater than or equal to the method detection limit, and the concentration is an approximate value

PCBs (µg/kg)

2 of 2

TABLE C-3

WEST WALL SOIL SAMPLE RESULTS

CALLAHAN PROPERTY SITE

Analyte Sample Date Sample IDRegional Screening

Level - Residential

Regional Screening Level -


11/30/2012 CA-WW-01 5,400 27,000 0.77 J

12/3/2012 CA-WW-02 5,400 27,000 0.39 J

11/30/2012 CA-WW-01 56,000 960,000 24

12/3/2012 CA-WW-02 56,000 960,000 11

11/30/2012 CA-WW-01 595,000* 2,550,000* 2.9 J

12/3/2012 CA-WW-02 595,000* 2,550,000* 1.5 J

11/30/2012 CA-WW-01 690,000 3,000,000 0.73 J

12/3/2012 CA-WW-02 690,000 3,000,000 0.78 J

11/30/2012 CA-WW-01 22,000 110,000 0.77 J

12/3/2012 CA-WW-02 22,000 110,000 11 B

11/30/2012 CA-WW-01 5,000,000 45,000,000 6.7

12/3/2012 CA-WW-02 5,000,000 45,000,000 8.1

11/30/2012 CA-WW-01 630,000 2,700,000 3.6 J

12/3/2012 CA-WW-02 630,000 2,700,000 2.3 J

11/30/2012 CA-WW-01 35 120 5.6

12/3/2012 CA-WW-02 35 120 2.6

Butyl benzyl phthalate 11/30/2012 CA-WW-01 260 910 0.15 J

11/30/2012 CA-WW-01 6,100 62,000 0.17 J

12/3/2012 CA-WW-02 6,100 62,000 0.13 J

11/30/2012 CA-WW-01 1,200 12,000 0.16 J

12/3/2012 CA-WW-02 1,200 12,000 0.39

11/30/2012 CA-WW-01 NA NA 0.21 J

12/3/2012 CA-WW-02 NA NA 0.10 J

Fluorene 12/3/2012 CA-WW-02 2,300 22,000 0.053 J

11/30/2012 CA-WW-01 510 1,800 0.089 J

12/3/2012 CA-WW-02 510 1,800 0.19 J

11/30/2012 CA-WW-01 230 2,200 0.15 J

12/3/2012 CA-WW-02 230 2,200 0.080 J

11/30/2012 CA-WW-01 6,100 62,000 0.090 J

12/3/2012 CA-WW-02 6,100 62,000 0.27 J

11/30/2012 CA-WW-01 6,100 62,000 0.10 J

12/3/2012 CA-WW-02 6,100 62,000 0.27 J

11/30/2012 CA-WW-01 3.6 180 0.23 J

12/3/2012 CA-WW-02 3.6 180 0.18 J

Phenanthrene 12/3/2012 CA-WW-02 NA NA 0.071 J

11/30/2012 CA-WW-01 18,000 180,000 1.4

12/3/2012 CA-WW-02 18,000 180,000 2.7

11/30/2012 CA-WW-01 6,100 62,000 0.093 J

12/3/2012 CA-WW-02 6,100 62,000 0.075 J

11/30/2012 CA-WW-01 0.39 1.6 4.7

12/3/2012 CA-WW-02 0.39 1.6 4.7

11/30/2012 CA-WW-01 15,000 190,000 160

12/3/2012 CA-WW-02 15,000 190,000 98

11/30/2012 CA-WW-01 70 800 7.9

12/3/2012 CA-WW-02 70 800 4.3

11/30/2012 CA-WW-01 NA** NA** 150

12/3/2012 CA-WW-02 NA** NA** 110

11/30/2012 CA-WW-01 400 800 730

12/3/2012 CA-WW-02 400 800 320

VOCs (µg/kg)

SVOCs (mg/kg)

Metals (mg/kg)

Ethylbenzene

Methylene chloride

m-Xylene & p-Xylene

o-Xylene

Tetrachloroethene

Toluene

Xylenes, Total


Di-n-butyl phthalate

2,4-Dimethylphenol

Dimethyl phthalate

Isophorone

2-Methylnaphthalene

2-Methylphenol

3- & 4-Methylphenol

Naphthalene

Phenol

Benzyl alcohol

Arsenic

Barium

Cadmium

Chromium

Lead

1 of 2

TABLE C-3

WEST WALL SOIL SAMPLE RESULTS

CALLAHAN PROPERTY SITE

Analyte Sample Date Sample IDRegional Screening

Level - Residential

Regional Screening Level -


VOCs (µg/kg)11/30/2012 CA-WW-01 10 43 0.44 B12/3/2012 CA-WW-02 10 43 0.061

Selenium 11/30/2012 CA-WW-01 390 5,100 1.4 J

PCB-1260 12/3/2012 CA-WW-01/02 220 740 38

PCBs, Total 12/3/2012 CA-WW-01/02 220 740 38

Notes:

Shaded value indicates the sample result was above the Residential Soil Screening Level

Bolded value indicates the sample result was above the Industrial Soil Screening Level

* = Average of m-Xylene and p-Xylene

** = Screening levels are not established for total chromium

ID = Identification

µg/kg = Micrograms per kilogram

mg/kg = Milligrams per kilogram

NA = Screening level not available

PCB = Polychlorinated biphenyl

SVOC = Semi-volatile organic compound

VOC = Volatile organic compound

Qualifiers:

B = Compound was also found in the blank sample

J = Result is less than the reporting limit but greater than or equal to the method detection limit, and the concentration is an approximate value

PCBs (µg/kg)

Mercury

2 of 2

TABLE C-4

NORTH WALL SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



1,3,5-Trimethylbenzene 12/5/2012 CA-NW-01 780,000 10,000,000 9.812/5/2012 CA-NW-01 61,000,000 630,000,000 11512/5/2012 CA-NW-02 61,000,000 630,000,000 50 J12/5/2012 CA-NW-01 1,100 5,400 5.412/5/2012 CA-NW-02 1,100 5,400 2.6

Ethyl ether 12/5/2012 CA-NW-02 16,000,000 200,000,000 3.8 JIsopropylbenzene 12/5/2012 CA-NW-01 2,100,000 11,000,000 2.8 J

12/5/2012 CA-NW-01 56,000 960,000 5.1 J12/5/2012 CA-NW-02 56,000 960,000 11.812/5/2012 CA-NW-01 595,000* 2,550,000* 3.1 J12/5/2012 CA-NW-02 595,000* 2,550,000* 2.4 J

o-Xylene 12/5/2012 CA-NW-01 690,000 3,000,000 1.4 JNaphthalene 12/5/2012 CA-NW-01 3,600 18,000 2.4 Jn-Propylbenzene 12/5/2012 CA-NW-01 3,400,000 21,000,000 1.6 JTetrachloroethene 12/5/2012 CA-NW-01 22,000 110,000 7.7

12/5/2012 CA-NW-01 5,000,000 45,000,000 17.812/5/2012 CA-NW-02 5,000,000 45,000,000 9

12/5/2012 CA-NW-01 35 120 4.9712/5/2012 CA-NW-02 35 120 1.6

2,4-Dimethylphenol 12/5/2012 CA-NW-01 1,200 12,000 0.51 JFluorene 12/5/2012 CA-NW-01 2,300 22,000 0.056

12/5/2012 CA-NW-01 510 1,800 0.92112/5/2012 CA-NW-02 510 1,800 1.45

m,p-Cresol 12/5/2012 CA-NW-01 4,600 46,500 0.777Naphthalene 12/5/2012 CA-NW-01 3.6 180 0.264o-Cresol 12/5/2012 CA-NW-01 3,100 31,000 0.758Phenanthrene 12/5/2012 CA-NW-01 NA NA 0.032 JPhenol 12/5/2012 CA-NW-01 18,000 180,000 0.987Pyrene 12/5/2012 CA-NW-01 1,700 17,000 0.029 J

12/5/2012 CA-NW-01 0.39 1.6 6.1712/5/2012 CA-NW-02 0.39 1.6 6.8612/5/2012 CA-NW-01 15,000 190,000 13512/5/2012 CA-NW-02 15,000 190,000 16612/5/2012 CA-NW-01 70 800 28.912/5/2012 CA-NW-02 70 800 0.3212/5/2012 CA-NW-01 NA** NA** 8712/5/2012 CA-NW-02 NA** NA** 21.412/5/2012 CA-NW-01 400 800 40012/5/2012 CA-NW-02 400 800 61.412/5/2012 CA-NW-01 10 43 0.1712/5/2012 CA-NW-02 10 43 0.05712/5/2012 CA-NW-01 390 5,100 < 3.9212/5/2012 CA-NW-02 390 5,100 < 3.9212/5/2012 CA-NW-01 390 5,100 < 0.5412/5/2012 CA-NW-02 390 5,100 < 0.54

Cadmium

Methylene chloride

m-Xylene & p-Xylene

Toluene

Silver

Isophorone

Arsenic

Barium


Lead

Chromium

Mercury

Selenium

VOCs (µg/kg)

SVOCs (mg/kg)

Metals (mg/kg)

Acetone

Benzene

1 of 2

TABLE C-4

NORTH WALL SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



PCB-1242 12/5/2012 CA-NW-01 220 740 31 J12/5/2012 CA-NW-01 220 740 22 J12/5/2012 CA-NW-02 220 740 42 J12/5/2012 CA-NW-01 220 740 53 J12/5/2012 CA-NW-02 220 740 42 J

Notes:

Shaded value indicates the sample result was above the Residential Soil Screening Level Bolded value indicates the sample result was above the Industrial Soil Screening Level* = Average of m-Xylene and p-Xylene** = Screening levels are not established for total chromium< = Less thanID = Identificationµg/kg = Micrograms per kilogrammg/kg = Milligrams per kilogramNA = Screening level not availablePCB = Polychlorinated biphenylSVOC = Semi-volatile organic compoundVOC = Volatile organic compound

Qualifier:

PCBs (µg/kg)

PCB-1260

J = Result is less than the reporting limit but greater than or equal to the method detection limit, and the concentration is an approximate value

PCBs, Total

2 of 2

TABLE C-5

STAINED SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



1,2-Dichlorobenzene 11/29/2012 CA-SOIL-01 1,900,000 9,800,000 31Acetone 11/29/2012 CA-SOIL-01 61,000,000 630,000,000 41Benzene 11/29/2012 CA-SOIL-01 1,100 5,400 8.1Cyclohexane 11/29/2012 CA-SOIL-01 7,000,000 29,000,000 11Ethylbenzene 11/29/2012 CA-SOIL-01 5,400 27,000 5,000Isopropylbenzene 11/29/2012 CA-SOIL-01 2,100,000 11,000,000 160Methylcyclohexane 11/29/2012 CA-SOIL-01 NA NA 69Methylene chloride 11/29/2012 CA-SOIL-01 56,000 960,000 5.7m-Xylene & p-Xylene 11/29/2012 CA-SOIL-01 595,000* 2,550,000* 16,000o-Xylene 11/29/2012 CA-SOIL-01 690,000 3,000,000 5,800Tetrachloroethene 11/29/2012 CA-SOIL-01 22,000 110,000 1.4 JToluene 11/29/2012 CA-SOIL-01 5,000,000 45,000,000 39,000Xylenes, Total 11/29/2012 CA-SOIL-01 630,000 2,700,000 22,000

Bis(2-ethylhexyl)phthalate 11/29/2012 CA-SOIL-01 35 120 51,2-Dichlorobenzene 11/29/2012 CA-SOIL-01 1,900 9,800 0.053 J2,4-Dimethylphenol 11/29/2012 CA-SOIL-01 1,200 12,000 0.47Dimethyl phthalate 11/29/2012 CA-SOIL-01 NA NA 0.12 JFluorene 11/29/2012 CA-SOIL-01 2,300 22,000 4.6Isophorone 11/29/2012 CA-SOIL-01 510 1,800 0.10 J2-Methylnaphthalene 11/29/2012 CA-SOIL-01 230 2,200 0.42Naphthalene 11/29/2012 CA-SOIL-01 3.6 180 1.2Phenanthrene 11/29/2012 CA-SOIL-01 NA NA 2

Notes:

* = Average of m-Xylene and p-XyleneID = Identificationµg/kg = Micrograms per kilogrammg/kg = Milligrams per kilogramNA = Screening level not availableSVOC = Semi-volatile organic compoundVOC = Volatile organic compound


VOCs (µg/kg)

SVOCs (mg/kg)

1 of 1

TABLE C-6

OVERBURDEN STOCKPILE SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



1,1,2-Trichloroethane 11/30/2012 CA-OVRSTK-01 1,100 5,300 0.75 J1,2-Dichlorobenzene 11/30/2012 CA-OVRSTK-01 1,900,000 9,800,000 0.32 JEthylbenzene 11/30/2012 CA-OVRSTK-01 5,400 27,000 2.8 JMethylene chloride 11/30/2012 CA-OVRSTK-01 56,000 960,000 11m-Xylene & p-Xylene 11/30/2012 CA-OVRSTK-01 595,000* 2,550,000* 12o-Xylene 11/30/2012 CA-OVRSTK-01 690,000 3,000,000 3.1 JTetrachloroethene 11/30/2012 CA-OVRSTK-01 22,000 110,000 3.2 JToluene 11/30/2012 CA-OVRSTK-01 5,000,000 45,000,000 22Xylenes, Total 11/30/2012 CA-OVRSTK-01 630,000 2,700,000 15

Bis(2-ethylhexyl)phthalate 11/30/2012 CA-OVRSTK-01 35 120 2.6Di-n-butyl phthalate 11/30/2012 CA-OVRSTK-01 6,100 62,000 0.13 J2,4-Dimethylphenol 11/30/2012 CA-OVRSTK-01 1,200 12,000 0.24 JDimethyl phthalate 11/30/2012 CA-OVRSTK-01 NA NA 0.073 JFluorene 11/30/2012 CA-OVRSTK-01 2,300 22,000 0.066 JIsophorone 11/30/2012 CA-OVRSTK-01 510 1,800 0.13 J2-Methylnaphthalene 11/30/2012 CA-OVRSTK-01 230 2,200 0.064 J2-Methylphenol 11/30/2012 CA-OVRSTK-01 6,100 62,000 0.31 J3- & 4-Methylphenol 11/30/2012 CA-OVRSTK-01 6,100 62,000 0.24 JNaphthalene 11/30/2012 CA-OVRSTK-01 3.6 180 0.13 JPhenanthrene 11/30/2012 CA-OVRSTK-01 NA NA 0.039 JPhenol 11/30/2012 CA-OVRSTK-01 18,000 180,000 4.2Benzyl alcohol 11/30/2012 CA-OVRSTK-01 6,100 62,000 0.053 J

Notes:

* = Average of m-Xylene and p-XyleneID = Identificationµg/kg = Micrograms per kilogrammg/kg = Milligrams per kilogramNA = Screening level not availableSVOC = Semi-volatile organic compoundVOC = Volatile organic compound


VOCs (µg/kg)

SVOCs (mg/kg)

1 of 1

TABLE C-7

BACKFILL AND TOPSOIL SOIL SAMPLE RESULTSCALLAHAN PROPERTY SITE



Acetone 12/7/2012 CA-TPSL-01 61,000,000 630,000,000 60 JBenzene 12/7/2012 CA-TPSL-01 1,100 5,400 4Methylene chloride 12/7/2012 CA-TPSL-01 56,000 960,000 8.5Toluene 12/7/2012 CA-TPSL-01 5,000,000 45,000,000 1.6 J

Fluoranthene 11/20/2012 CAL-BF-1 2,300 22,000 0.040 J

11/20/2012 CAL-BF-1 0.39 1.6 5.912/7/2012 CA-TPSL-01 0.39 1.6 5.1311/20/2012 CAL-BF-1 15,000 190,000 14012/7/2012 CA-TPSL-01 15,000 190,000 104

Cadmium 12/7/2012 CA-TPSL-01 70 800 0.17 J11/20/2012 CAL-BF-1 NA** NA** 1412/7/2012 CA-TPSL-01 NA** NA** 13.911/20/2012 CAL-BF-1 400 800 1312/7/2012 CA-TPSL-01 400 800 6.8611/20/2012 CAL-BF-1 10 43 0.017 J12/7/2012 CA-TPSL-01 10 43 0.018

Selenium 12/7/2012 CA-TPSL-01 390 5,100 < 3.77Silver 12/7/2012 CA-TPSL-01 390 5,100 < 0.52

Notes:

Shaded value indicates the sample result was above the Residential Soil Screening Level Bolded value indicates the sample result was above the Industrial Soil Screening Level* = Screening levels are not established for total chromiumID = Identificationµg/kg = Micrograms per kilogrammg/kg = Milligrams per kilogramSVOC = Semi-volatile organic compoundVOC = Volatile organic compound


Lead

Mercury

VOCs (µg/kg)

SVOCs (mg/kg)

Metals (mg/kg)

Arsenic

Barium

Chromium

1 of 1

APPENDIX D

ANALYTICAL RESULTS

http://www.teklabinc.com/

November 16, 2012

WorkOrder: 12110520Calhoun Property SiteRE:

Dear David Brinkmeyer:

TEKLAB, INC received 1 sample on 11/12/2012 3:55:00 PM for the analysis presented in the following report.

Samples are analyzed on an as received basis unless otherwise requested and documented. The sample results contained in this report relate only to the requested analytes of interest as directed on the chain of custody. NELAP accredited fields of testing are indicated by the letters NELAP under the Certification column. Unless otherwise documented within this report, Teklab Inc. analyzes samples utilizing the most current methods in compliance with 40CFR. All tests are performed in the Collinsville, IL laboratory unless otherwise noted in the Case Narrative.

All quality control criteria applicable to the test methods employed for this project have been satisfactorily met and are in accordance with NELAP except where noted. The following report shall not be reproduced, except in full, without the written approval of Teklab, Inc.

If you have any questions regarding these tests results, please feel free to call.

Sincerely,

1666 Fabick DriveFenton, MO 63026

(636) 448-1298(636) 227-6447

TEL:FAX:

David BrinkmeyerEnvironmental Restoration, LLC

Marvin L. DarlingProject Manager(618)344-1004 ex [email protected]

Page 1 of 26

This reporting package includes the following:

Report Contents

Client Project: Calhoun Property Site

Client: Environmental Restoration, LLC

Report Date: 16-Nov-12

Work Order: 12110520


Cover Letter 1

Report Contents 2

Definitions 3

Case Narrative 4

Laboratory Results 5

Quality Control Results 7

Receiving Check List 26

Chain of Custody Appended

Page 2 of 26

____TeklabHdrP

Definitions






Abbr DefinitionCCV Continuing calibration verification is a check of a standard to determine the state of calibration of an instrument between recalibration.

DF Dilution factor is the dilution performed during analysis only and does not take into account any dilutions made during sample preparation. The reported result is final and includes all dilutions factors.

DNI Did not ignite

DUP Laboratory duplicate is an aliquot of a sample taken from the same container under laboratory conditions for independent processing and analysis independently of the original aliquot.

ICV Initial calibration verification is a check of a standard to determine the state of calibration of an instrument before sample analysis is initiated.

IDPH IL Dept. of Public Health

LCS Laboratory control sample, spiked with verified known amounts of analytes, is analyzed exactly like a sample to establish intra-laboratory or analyst specific precision and bias or to assess the performance of all or a portion of the measurement system. The acceptable recovery range is in the QC Package (provided upon request).

LCSD Laboratory control sample duplicate is a replicate laboratory control sample that is prepared and analyzed in order to determine the precision of the approved test method. The acceptable recovery range is listed in the QC Package (provided upon request).

MB Method blank is a sample of a matrix similar to the batch of associated sample (when available) that is free from the analytes of interest and is processed simultaneously with and under the same conditions as samples through all steps of the analytical procedures, and in which no target analytes or interferences should present at concentrations that impact the analytical results for sample analyses.

MDL Method detection limit means the minimum concentration of a substance that can be measured and reported with 99% confidence that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix type containing the analyte.

MS Matrix spike is an aliquot of matrix fortified (spiked) with known quantities of specific analytes that is subjected to the entire analytical procedures in order to determine the effect of the matrix on an approved test method’s recovery system. The acceptable recovery range is listed in the QC Package (provided upon request).

MSD Matrix spike duplicate means a replicate matrix spike that is prepared and analyzed in order to determine the precision of the approved test method. The acceptable recovery range is listed in the QC Package (provided upon request).

MW Molecular weight

ND Not Detected at the Reporting Limit

NELAP NELAP Accredited

PQL Practical quantitation limit means the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine laboratory operation conditions. The acceptable recovery range is listed in the QC Package (provided upon request).

RL The reporting limit the lowest level that the data is displayed in the final report. The reporting limit may vary according to customer request or sample dilution. The reporting limit may not be less than the MDL.

RPD Relative percent difference is a calculated difference between two recoveries (ie. MS/MSD). The acceptable recovery limit is listed in the QC Package (provided upon request).

SPK The spike is a known mass of target analyte added to a blank sample or sub-sample; used to determine recovery deficiency or for other quality control purposes.

Surr Surrogates are compounds which are similar to the analytes of interest in chemical composition and behavior in the analytical process, but which are not normally found in environmental samples.

TNTC Too numerous to count ( > 200 CFU )

Qualifiers# - Unknown hydrocarbon B - Analyte detected in associated Method Blank

E - Value above quantitation range H - Holding times exceeded

J - Analyte detected below quantitation limits M - Manual Integration used to determine area response

ND - Not Detected at the Reporting Limit R - RPD outside accepted recovery limits

S - Spike Recovery outside recovery limits X - Value exceeds Maximum Contaminant Level

Page 3 of 26

Case Narrative






Cooler Receipt Temp: 3.4 °C

NELAPState Cert # Exp Date LabDept

Locations and Accreditations

___________________________________Collinsville

AddressAddressAddressAddress 5445 Horseshoe Lake Road

Collinsville, IL 62234-7425

PhonePhonePhonePhone (618) 344-1004

FaxFaxFaxFax (618) 344-1005

EmailEmailEmailEmail [email protected]

___________________________________Springfield

AddressAddressAddressAddress 3920 Pintail Dr

Springfield, IL 62711-9415




___________________________________Kansas City

AddressAddressAddressAddress 8421 Nieman Road

Lenexa, KS 66214




Illinois 100226 1/31/2013 CollinsvilleNELAPIEPA

Kansas E-10374 1/31/2013 CollinsvilleNELAPKDHE

Louisiana 166493 6/30/2013 CollinsvilleNELAPLDEQ

Louisiana 166578 6/30/2013 SpringfieldNELAPLDEQ

Texas T104704515-12-1 7/31/2013 CollinsvilleNELAPTCEQ

Arkansas 88-0966 3/14/2013 CollinsvilleADEQ

Illinois 17584 4/30/2013 CollinsvilleIDPH

Kentucky 0073 5/26/2013 CollinsvilleUST

Missouri 00930 4/13/2013 CollinsvilleMDNR

Oklahoma 9978 8/31/2013 CollinsvilleODEQ

Page 4 of 26

TeklabHdrP

Laboratory Results






Analyses Result Units Date AnalyzedRL DFCertification Qual

Collection Date: 11/12/2012 9:55

Lab ID: 12110520-001 Client Sample ID: Calhoun Property Site

Matrix: SOLID

Batch

ASTM D4979-95Color 11/13/2012 9:150 1Brown R170431

Layering 11/13/2012 9:150 1None R170431

Odor 11/13/2012 9:150 1Inorganic R170431

Physical State 11/13/2012 9:150 1Solid R170431

Turbidity 11/13/2012 9:150 1None R170431

Viscosity 11/13/2012 9:150 1None R170431

ASTM D5058-90Water Reactivity 11/13/2012 9:150 1None R170431

Miscibility 11/13/2012 9:150 1Immiscible R170431

Apparent Density 11/13/2012 9:150 1>Water R170431

ASTM D92Ignitability, Open Cup 11/13/2012 14:3060 °F 1>200 R170453

STANDARD METHODS 2540 GTotal Solids 11/13/2012 17:190.1 % 180.9 R170480

SW-846 9012A (TOTAL)Cyanide J 11/15/2012 11:490.25 mg/Kg 10.16NELAP 83398

SW-846 9034 (REACTIVE)Sulfide, Reactive 11/14/2012 16:1410.0 mg/Kg 1< 10.0NELAP 83385

SW-846 9045CpH (1:1) 11/13/2012 13:561.00 17.41NELAP R170416

SW-846 9065Phenols J 11/16/2012 13:272.35 mg/Kg 10.75NELAP 83445

SW-846 9095Paint Filter 11/13/2012 9:150 Pass/Fail 1PassNELAP R170449

SW-846 1311, 3010A, 6010B, METALS IN TCLP EXTRACT BY ICPArsenic 11/14/2012 14:270.250 mg/L 1< 0.250NELAP 83361Barium 11/14/2012 14:270.0500 mg/L 11.26NELAP 83361

Cadmium 11/14/2012 14:270.0200 mg/L 1< 0.0200NELAP 83361

Chromium 11/14/2012 14:270.100 mg/L 1< 0.100NELAP 83361

Lead 11/14/2012 14:270.400 mg/L 1< 0.400NELAP 83361

Selenium 11/14/2012 14:270.500 mg/L 1< 0.500NELAP 83361

Silver J 11/14/2012 14:270.100 mg/L 10.056NELAP 83361

SW-846 1311, 7470A IN TCLP EXTRACTMercury 11/14/2012 13:290.00020 mg/L 1< 0.00020NELAP 83357

SW-846 1311, 3510C, 8270C, SEMI-VOLATILES IN TCLP EXTRACT BY GC/MS2,4,5-Trichlorophenol 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

2,4,6-Trichlorophenol 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

2,4-Dinitrotoluene 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

Hexachlorobenzene 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

Hexachlorobutadiene 11/14/2012 13:210.100 mg/L 1NDNELAP 83340Hexachloroethane 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

m,p-Cresol 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

Nitrobenzene 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

o-Cresol 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

Pentachlorophenol 11/14/2012 13:210.200 mg/L 1NDNELAP 83340

Pyridine 11/14/2012 13:210.200 mg/L 1NDNELAP 83340

Page 5 of 26

TeklabHdrP

Laboratory Results






Analyses Result Units Date AnalyzedRL DFCertification Qual

Collection Date: 11/12/2012 9:55

Lab ID: 12110520-001 Client Sample ID: Calhoun Property Site

Matrix: SOLID

Batch

SW-846 1311, 3510C, 8270C, SEMI-VOLATILES IN TCLP EXTRACT BY GC/MSCresols, Total 11/14/2012 13:210.100 mg/L 1NDNELAP 83340

Surr: 2,4,6-Tribromophenol 11/14/2012 13:2126.4-130 %REC 184.3 83340

Surr: 2-Fluorobiphenyl 11/14/2012 13:2138.3-115 %REC 177.2 83340

Surr: 2-Fluorophenol 11/14/2012 13:2116.5-65 %REC 153.5 83340

Surr: Nitrobenzene-d5 11/14/2012 13:2147.6-107 %REC 180.0 83340

Surr: Phenol-d5 11/14/2012 13:219.94-41.7 %REC 132.9 83340 Surr: p-Terphenyl-d14 11/14/2012 13:211-136 %REC 191.2 83340

SW-846 3550B, 8082, POLYCHLORINATED BIPHENYLS (PCBS) BY GC/ECDAroclor 1016 11/13/2012 13:0138.0 µg/Kg 1NDNELAP 83321

Aroclor 1221 11/13/2012 13:0138.0 µg/Kg 1NDNELAP 83321



Aroclor 1248 11/13/2012 13:0138.0 µg/Kg 1NDNELAP 83321Aroclor 1254 11/13/2012 13:0138.0 µg/Kg 1NDNELAP 83321


Surr: Decachlorobiphenyl 11/13/2012 13:015-156 %REC 1113.3 83321

Surr: Tetrachloro-meta-xylene 11/13/2012 13:017.35-123 %REC 161.9 83321

SW-846 1311, 5030, 8260B, VOLATILE ORGANIC COMPOUNDS IN TCLP EXTRACT BY GC/MS1,1-Dichloroethene 11/16/2012 2:300.500 mg/L 100NDNELAP 83466

1,2-Dichloroethane 11/16/2012 2:300.500 mg/L 100NDNELAP 834661,4-Dichlorobenzene 11/16/2012 2:300.500 mg/L 100NDNELAP 83466

2-Butanone 11/16/2012 2:305.00 mg/L 100NDNELAP 83466

Benzene 11/16/2012 2:300.200 mg/L 100NDNELAP 83466

Carbon tetrachloride 11/16/2012 2:300.500 mg/L 100NDNELAP 83466

Chlorobenzene 11/16/2012 2:300.500 mg/L 100NDNELAP 83466

Chloroform 11/16/2012 2:300.500 mg/L 100NDNELAP 83466

Tetrachloroethene 11/16/2012 2:300.500 mg/L 100NDNELAP 83466Trichloroethene 11/16/2012 2:300.500 mg/L 100NDNELAP 83466

Vinyl chloride 11/16/2012 2:300.200 mg/L 100NDNELAP 83466

Surr: 1,2-Dichloroethane-d4 11/16/2012 2:3074.7-129 %REC 100101.7 83466

Surr: 4-Bromofluorobenzene 11/16/2012 2:3086-119 %REC 100103.8 83466

Surr: Dibromofluoromethane 11/16/2012 2:3081.7-123 %REC 100101.8 83466

Surr: Toluene-d8 11/16/2012 2:3084.3-114 %REC 10094.2 83466

SW-846 9023Extractable Organic Halogens (EOX) 11/13/2012 11:3649.5 mg/Kg 1< 49.5NELAP 83349

Page 6 of 26

Quality Control Results






ASTM D92

SampID: LCS-R170453

SampType: LCS °FUnitsR170453Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitIgnitability, Open Cup 11/13/201260 8181 100.00 97 103

SampID: 12110520-001ADUP

SampType: DUP °FUnitsR170453Batch RPD Limit 5

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDIgnitability, Open Cup 11/13/201260 >200 0.000

STANDARD METHODS 2540 G

SampID: LCS

SampType: LCS %UnitsR170480Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitTotal Solids 11/13/20120.1 1.01.0 101.00 90 110

SampID: LCSQC

SampType: LCSQC %UnitsR170480Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitTotal Solids 11/13/20120.1 1.01.0 101.00 90 110

SampID: 12110539-004A DUP

SampType: DUP %UnitsR170480Batch RPD Limit 15

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDTotal Solids 11/13/20120.1 3.9 1.773.980

SampID: 12110539-007A DUP

SampType: DUP %UnitsR170480Batch RPD Limit 15

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDTotal Solids 11/13/20120.1 2.8 0.352.840

SW-846 9012A (TOTAL)

SampID: MBLK 121114 TCN2

SampType: MBLK mg/KgUnits83398Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitCyanide 11/15/20120.25 < 0.25

SampID: LCS 121114 TCN2

SampType: LCS mg/KgUnits83398Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitCyanide 11/15/20120.25 1.251.23 98.30 85 115

Page 7 of 26







SW-846 9012A (TOTAL)

SampID: 12110520-001AMS

SampType: MS mg/KgUnits83398Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitCyanide 11/15/20120.25 1.251.33 94.00.1558 75 125

SampID: 12110520-001AMSD

SampType: MSD mg/KgUnits83398Batch RPD Limit 15

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDCyanide 11/15/20120.25 1.251.49 106.7 11.240.1558 1.331

SW-846 9034 (REACTIVE)

SampID: MBLK 121114 RSUL

SampType: MBLK mg/KgUnits83385Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitSulfide, Reactive 11/14/201210.0 < 10.0

SampID: LCS 121114 RSUL

SampType: LCS mg/KgUnits83385Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitSulfide, Reactive 11/14/201210.0 94.4100 105.90 47.3 109

SampID: 12110475-001A-DUP

SampType: DUP mg/KgUnits83385Batch RPD Limit 10

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDSulfide, Reactive 11/14/20129.3 < 9.3 0.000

SW-846 9045C

SampID: LCS-R170416

SampType: LCS UnitsR170416Batch

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC Low Limit High LimitpH (1:1) 11/13/20121.00 7.007.01 100.10 99.1 100.8


SampType: DUP UnitsR170416Batch RPD Limit 10

Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDpH (1:1) 11/13/20121.00 7.16 3.437.410



Analyses ResultDate


Page 8 of 26







SW-846 9045C



Analyses ResultDate




Analyses ResultDate




Analyses ResultDate




Analyses ResultDate




Analyses ResultDate




Analyses ResultDate




Analyses ResultDate

AnalyzedRL SpikeQual SPK Ref Val %REC RPD Ref Val %RPDpH (1:1) 11/13/20121.00 7.79 0.1

Documents

11:) TETRA TECHused a Case CX210C hydraulic excavator to remove the contaminated soil, and up to seven dump trucks were used to transfer the excavated soil from the site to the Milam