SW_F_0901-MSWLF-1981_03-12-2015_RM_GW.pdf

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March 2015 Semi-Annual Groundwater Monitoring Report

Bladen County Closed MSW Landfill
NC Solid Waste Permit No. 09-01

Prepared for:

Bladen County Solid Waste Management
1522 Mercer Mill Road
Elizabethtown, North Carolina 28337

April 2015

Prepared by:

© 2015 Smith Gardner, Inc.
This document is intended for the sole use of the client for which it was prepared and
for the purpose agreed upon by the client and Smith Gardner, Inc.

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Bladen County Closed MSW Landfill March 2015 Groundwater Monitoring Report
April 2015 Table of Contents Page i

Bladen County Closed MSW Landfill
NC Solid Waste Permit No. 09-01

March 2015 Groundwater Monitoring Report

Table of Contents
Page

1.0 INTRODUCTION ......................................................................................................... 1 
2.0 SITE GEOLOGY ........................................................................................................... 1 
3.0 SAMPLING LOCATIONS ............................................................................................. 1 
4.0 SAMPLING PROCEDURES ......................................................................................... 1 
5.0 FIELD AND LABORATORY RESULTS .......................................................................... 2 
5.1 Field Parameter Results ........................................................................................... 2 
5.2 Laboratory Results .................................................................................................... 2 
5.2.1 Inorganic Constituent Results ...................................................................... 2 
5.2.2 Organic Constituent Results ......................................................................... 2 
5.2.3 Surface Water Results .................................................................................. 2 
6.0 GROUNDWATER CHARACTERIZATION ...................................................................... 2 
7.0 CONCLUSIONS .......................................................................................................... 3 

FIGURE
Figure 1 Groundwater Potentiometric Map

TABLES
Table 1 Groundwater Elevation Data
Table 2 Field Parameters
Table 3 Detected Constituents

APPENDICES
Appendix A Laboratory Analytical Report

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Bladen County Closed MSW Landfill March 2015 Groundwater Monitoring Report
April 2015 Page 1
1.0 INTRODUCTION
The Closed unlined Bladen County MSW Landfill, (Solid Waste Permit # 09-01) requires semi-
annual groundwater monitoring as a condition of the water quality monitoring program. This
report, prepared by Smith Gardner, Inc. (S+G), presents the March 12, 2015 monitoring event
results. This event was performed in compliance with NC Solid Waste Regulations.

As specified in rule 15A NCAC 13B .0544 and the November 5, 2014 Groundwater, Surface
Water, Soil, Sediment, and Landfill Gas Electronic Document Submittal Memo, this report
includes a Solid Waste Section (SWS) Environmental Monitoring Report Form, field procedure
and laboratory analyses summaries for the closed MSW site. A potentiometric surface map,
summary tables and laboratory analytical report are also included.
2.0 SITE GEOLOGY
The Bladen County MSW Landfill is located off Highway 87 just east of Elizabethtown in the
Coastal Plain physiographic province. According to the Geologic Map of North Carolina (1985)
this area is underlain by the Black Creek Formation, which is characterized by gray to black
lignitic clay with thin beds of fine grained sands and thick lenses of cross-grained sand.
3.0 SAMPLING LOCATIONS
The sampling event was reportedly performed by Environment 1, Incorporated (Greenville, NC)
personnel on March 12, 2015. The groundwater monitoring network for the MSW landfill
includes seven groundwater monitoring wells (MW-1, MW-3, MW-4, MW-5A, MW-7, MW-8 &
MW-9) and two surface water locations (SW-1 & SW-2). MW-1 serves as the background
location. Figure 1 illustrates sampling locations.
4.0 SAMPLING PROCEDURES
Sampling methods followed the protocol outlined in the North Carolina Water Quality
Monitoring Guidance Document for Solid Waste Facilities (NCDENR, DWM). The depth to water
in each well was gauged prior to purging and sampling. The field parameters pH, specific
conductivity and temperature were measured at each sampling location. Water table elevations
are included in Table 1.

Samples were collected by Environment 1 personnel in laboratory prepared containers for the
specified analytical procedures. Groundwater samples were properly preserved, placed on ice
and transported to the laboratory facility (Environment 1, Inc.), within the specified hold times
for each analysis.

Bladen County Closed MSW Landfill March 2015 Groundwater Monitoring Report
April 2015 Page 2
5.0 FIELD AND LABORATORY RESULTS
5.1 Field Parameter Results
Temperature, pH, and specific conductance were measured in the field at the time of
sampling. The field parameter results are summarized in Table 2 and have remained
consistent with previously reported sampling events.
5.2 Laboratory Results
Samples were transported to the laboratory facility under proper chain of custody and
analyzed at the specified DWM Solid Waste Quantitation Limits (SWSLs)1 for Appendix I
constituents. Water samples were analyzed to the laboratory established Method
Detection Limits (MDL). The laboratory report is included as Appendix A.

Table 3 summarizes the detected constituent list. Several constituents were detected
above the method detection limit at concentrations below the SWSLs. These are listed
as ‘‘J’’ values on Table 3, indicating they are non-quantifiable values.
5.2.1 Inorganic Constituent Results
This event barium (MW-1, MW-5A and MW-9) and selenium (MW-9) were
detected above their SWSL. No inorganics were reported above the NCAC
2L.0200 2L Standard (2L).
5.2.2 Organic Constituent Results
Benzene and vinyl chloride in the sample from MW-9 were reported at a
concentration above their SWSL and 2L Standard for this event.
5.2.3 Surface Water Results
No quantifiable detections of inorganic or organic constituents were reported in
samples from the surface water locations.
6.0 GROUNDWATER CHARACTERIZATION
A potentiometric map (Figure 1) for the uppermost aquifer, was prepared from the
groundwater elevation data for this sampling event. The data indicates that groundwater is
flowing generally north to northwest across most of the site. Hydraulic conductivity data is not
available for these wells so groundwater velocities could not be calculated.

1 New Guidelines for Electronic Submittal of Environmental Monitoring Data Memo, NCDENR – Solid Waste
Section, October 27, 2006

Bladen County Closed MSW Landfill March 2015 Groundwater Monitoring Report
April 2015 Page 3
7.0 CONCLUSIONS
The reported barium and selenium concentrations are likely due to natural deposit erosion and
suspended solids in the sample. The reported organic detections are consistent with
historically reported detections in MW-9. Monitoring well MW-9 is located immediately adjacent
to the waste at the site.

Surface water sampling did not indicate contaminant migration.

The next groundwater monitoring event is scheduled for September 2015. Following receipt of
laboratory data a report will be prepared and submitted to NCDENR and Bladen County.

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FIGURE

March 2015 Groundwater Monitoring Report
Bladen County Closed MSW Landfill
NC Solid Waste Permit No. 09-01

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0 300'600'
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REFERENCES
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2. WELL LOCATIONS FROM FIELD SURVEY DATED 10/27/08 BY
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3. DATA FROM ENVIRONMENT 1 LABORATORY REPORT DATED
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March 2015 Groundwater Monitoring Report
Bladen County Closed MSW Landfill
Solid Waste Permit No. 09-01

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.

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a
d
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a
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0
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b
l
a
n
k
.

Appendix A
Laboratory Analytical Report
March 2015 Groundwater Monitoring Report
Bladen County Closed MSW Landfill
Solid Waste Permit No. 09-01

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