NC0006254_Groundwater Monitoring Report July 2015_20151201

AECOM 919.461.1100 tel
1600 Perimeter Park Drive, Suite 400 919.461.1415 fax
Morrisville, NC 27560
Memorandum

To Brett Laverty, NCDEQ Division of Water Resources, Water Quality
Regional Operations, Asheville Regional Office
Page 1
CC David Day, Sealed Air Corporation; Dave Hallock, Blue Ridge Tissue Corporation
Subject Summary of July 2015 Groundwater Monitoring

From Maureen Conorozzo and Savannah Hingtgen, AECOM
Date December 1, 2015

AECOM Technical Services of North Carolina, Inc. (AECOM) is submitting this memorandum on
behalf of Sealed Air Corporation to summarize groundwater activities conducted on July 29 and 30,
2015 at the Blue Ridge Tissue Corporation facility located at 1427 Yadkin River Road in Patterson
(Lenoir), North Carolina (Site).
AECOM gauged site monitoring wells MW -1 through MW-8 on July 29, 2015. Depth to groundwater
and groundwater elevation data, as measured during the July 2015 event, are provided in Table 1.
Groundwater elevations were similar to those measured during previous sampling events. An
analysis of groundwater flow direction will be provided in the annual groundwater monitoring report
in December 2015.
Seven of the eight existing site monitoring wells were sampled during the July 2015 monitoring
event; sampling was not required for well MW -5. Six of these monitoring wells (MW-1, MW -3, MW -
4, MW -6, MW -7, and MW -8) were purged and sampled using a peristaltic pump and low-flow
techniques. During purging of each well, water quality measurements were collected to evaluate
well stabilization. Parameters pH, specific conductance, temperature, oxidation-reduction potential,
and dissolved oxygen were measured using a multi-parameter water quality meter (YSI ProPlus)
equipped with a flow-through cell, and turbidity measurements were collected using a portable
turbidity meter (Micro TPW). Once water quality parameters stabilized, a groundwater sample was
collected in laboratory provided pre-preserved sample containers, labeled, and placed on ice. The
groundwater samples were analyzed for total iron, total manganese, and total barium by Prism
Laboratories, Inc.
Due to the limited water volume and slow recharge in MW -2, low-flow sampling procedures could
not be executed and the above listed water quality parameters could not be measured. Sample
procedures at MW -2 were modified such that the well was purged dry and allowed to recharge, then
the groundwater sample was collected using a bailer. The sample from MW -2 was visibly turbid,
and therefore was collected into an unpreserved laboratory-provided container, labeled, and placed
on ice for later filtration and preservation by the laboratory (Prism). Due to these modified
procedures the sample from MW-2 only was analyzed for dissolved iron, dissolved manganese, and
dissolved barium.
AECOM

2
During a previous sampling event in August 2014, a slight sheen was observed in purge water
collected from MW-4. Therefore, purge water collected from MW -4 during the July 2015 sampling
event was closely examined for the presence of a sheen. No sheen was observed in July 2015.
Analytical data for the July 2015 event is shown in Table 2, and the laboratory report is provided in
Appendix A. Consistent with data collected from previous sampling events, the following
summarizes the data collected during the July 2015 groundwater sampling event:
• Total iron exceeded the Title 15A North Carolina Administrative Code, Subchapter 2L
Groundwater Quality Standard (2L Standard) of 0.3 milligrams per liter (mg/L) in samples
collected from MW -1, MW -3, MW -4, and MW -6; the dissolved iron result in the sample
from MW -2 was also above 0.3 mg/L.
• Total manganese exceeded the 2L Standard of 0.05 mg/L in samples collected from MW -
1, MW -3, MW -4, and MW -6; the dissolved manganese result in the sample from MW -2
was also above 0.05 mg/L.
• Total barium was detected in all of the wells sampled, but levels were below the 2L
Standard of 1 mg/L.
• Background well MW -6 samples contained concentrations of total iron and total
manganese that exceed 2L Standards by 2X and 4X, respectively.
• Samples from property boundary monitoring wells MW -7 and MW -8 continue to be well
within compliance of 2L Standards; total iron was not detected in either well.
The successive groundwater sampling event is scheduled for December 3, 2015. A sampling event
summary report will be submitted following the December sampling. A more comprehensive annual
groundwater monitoring report will be submitted in December 2015 as requested.
Sincerely yours,

Maureen Conorozzo, PG Savannah Hingtgen
[e-mail] [e-mail]

Tables
Table 1
Monitoring Well Construction and Groundwater Elevation Data
Blue Ridge Tissue Corporation - Patterson, North Carolina
AECOM
07/29/15 12.92 1,240.79
07/29/15 51.92 1,271.11
07/29/15 19.19 1,279.83
07/29/15 5.37 1,241.86
07/29/15 14.45 1,271.01
07/29/15 28.91 1,312.64
07/29/15 20.22 1,254.19
07/29/15 14.90 1,238.24
Notes:
ft - feet
bls - feet below land surface
BTOC - below top of casing
msl - above mean sea level
Depth to Water
(feet BTOC)
Groundwater
Elevation
(feet msl)
Well ID Date Installed Total Depth
(feet bls)
Screened
Interval
(feet bls)
Top of Casing
Elevation
(feet msl)
Date Water Level
Measured
1274.41
20 10-20 1253.14MW-8
08/06/14
08/06/14
24MW-7 14-24
MW-1 02/08/11 11 6-11 1253.71
MW-2 08/12/09 50 40-50 1323.03
MW-3 08/13/09 20 10-20 1299.02
MW-4 08/13/09 15 5-15 1247.23
1341.55
MW-5 08/16/11 21 11-21 1285.46
MW-6 08/06/14 29 19-29
Table 2
Groundwater Analytical Results Summary
Blue Ridge Tissue Corporation - Patterson, North Carolina
AECOM
Sample ID
Sample Date 07/30/15 07/30/15 07/30/15 07/29/15 07/29/15 07/29/15 07/30/15
Field Parameters
Temperature (°C)NS 21.4 NA 24.7 22.8 23.0 21.9 23.3
pH (standard units)NS 5.9 NA 6.0 5.8 4.6 5.4 5.2
Specific Conductance (µS/cm)NS 440.3 NA 494 352.8 39.5 111.7 155.9
Dissoved Oxygen (mg/L)NS 0.23 NA 0.29 0.23 3.39 3.79 4.47
ORP (mV)NS -79 NA -40 -119 190 192 248
Turbidity (NTU)NS 2.04 NA 9.98 0.21 4.7 1.0 1.4
Analytical Parameters
Total Iron (mg/L)0.3 34 NA 38 19 0.67 < 0.10 < 0.10
Dissolved Iron (mg/L)NS NA 3.6 NA NA NA NA NA
Total Barium (mg/L)1 0.24 NA 0.32 0.11 0.085 0.053 0.023
Dissolved Barium (mg/L)NS NA 0.54 NA NA NA NA NA
Total Manganese (mg/L)0.05 5.4 NA 1.7 1.5 0.22 0.015 < 0.010
Dissolved Manganese (mg/L)NS NA 0.38 NA NA NA NA NA
Notes:
Samples analyzed for total and dissolved iron, barium and manganese by EPA Method 6010
2L Standard - North Carolina groundwater quality standards established in Title 15A of the North Carolina Administrative Code, Subchapter 2L, Section 0.202
°C - degrees Celsius
µS/cm - microsiemens per centimeter
EPA - United States Environmental Protection Agency
mg/L - milligrams per liter
mV - millivolt
NA - Not analyzed
NS - No standardNTU - Nephelometric Turbidity Unit
RCRA - Resource Conservation Recovery Act
Bold samples indicate concentrations above the 2L Standard
MW-6 MW-7 MW-82L
Standard
MW-2 MW-3 MW-4MW-1

Appendix A
Analytical Laboratory Report
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