1119_DukeAsheville_SoilStockpileSamplingPlan_Rev1_FID1322888_20190619

STOCKPILED SOIL SAMPLING WORK PLAN
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC.
526 SOUTH CHURCH STREET/ECI3K
CHARLOTTE, NORTH CAROLINA 28202
('DUKE
ENERGY
Waste & Groundwater Programs
June 19, 2019
Revision 1

Stockpiled Soil Sampling Plan — Rev. 1 June 19, 2019
Asheville Steam Electric Plant
TABLE OF CONTENTS
SECTION
PAGE
1.0
PURPOSE.....................................................................................................................1
2.0
SOIL SAMPLING METHODOLOGY.................................................................................1
2.1
Method Summary........................................................................................................... 1
2.1.1 Collection of Representative Samples...................................................................... 2
2.1.2 Sample Preservation, Containers, Handling and Storage ......................................... 2
2.1.3 Decontamination...................................................................................................... 3
3.0
SOIL SAMPLING AND ANALYSIS................................................................................... 3
3.1
Soil Sampling................................................................................................................... 3
3.2
Sample Analysis............................................................................................................... 3
4.0
DOCUMENTATION.......................................................................................................3
5.0
TABLES/FIGURES.........................................................................................................4
TABLE 1— SOIL PARAMETERS AND ANALYTICAL METHODS ............................................... 4
FIGURE 1— SOIL STOCKPILE SAMPLING MAP..................................................................... 5
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Stockpiled Soil Sampling Plan — Rev. 1 June 19, 2019
Asheville Steam Electric Plant
1.0 PURPOSE
The purpose of this Stockpiled Soil Sampling Work Plan (Plan) is to provide a method for collecting and
analyzing soil samples from the soil stockpile at the Asheville Steam Electric Plant (Plant) in Buncombe
County, NC. The soil stockpile, as shown in Figure 1, is an estimated 10,000 cubic yards (cy) and includes
material from the former 1982 Ash Basin dam and excavated soils from a cleared area east of the former
1982 Ash Basin, outside of the waste boundary. Duke Energy Progress, LLC (Duke Energy) proposes to
reuse the stockpiled soil for on -site and off -site projects.
2.0 SOIL SAMPLING METHODOLOGY
2.1 Method Summary
This Soil Sampling Work Plan has been adapted from Environmental Protection Agency (EPA) Standard
Operating Procedures (SOPS) #2012 and #2006.
Soil samples are collected directly using stainless steel or plastic trowel, spade, shovel, or scoops and a
Geo-probe° or hand auger for samples at various depths. Following collection, soil is transferred from
the sampling device to a stainless steel or plastic bowl to be homogenized. Once homogenized, the soil
is transferred into Duke Energy Laboratory supplied sample bottles.
Soil samples will be submitted under chain of custody for the following analyses: total metals and
Synthetic Precipitation Leaching Procedure (SPLP) metals. Analytical methods for total metals and SPLP
metals are described in Table 1.
Equipment
• Sample containers —To be supplied by Duke Energy Laboratory with appropriate
cooler(s). Estimated that five (5) 8-ounce sample bottles with Teflon -lined lids will be
required for each sample location and sample depth. For return of cooler to the lab, ice
will be required.
• Gloves — used for personal protection and to prevent cross -contamination of samples —
nitrile, disposable, powderless.
• Field clothing and Personal Protective Equipment — used as specified in the site Health
and Safety Plan.
• Sampling flags — used for identifying soil sampling locations.
• Field notebook — a bound book used to record progress of sampling effort and record
any problems and field observations during sampling.
• Three-ring binder book — used to store necessary forms and record and track samples
collected at the site.

Stockpiled Soil Sampling Plan — Rev. 1
June 19, 2019
Asheville Steam Electric Plant
• Permanent marking pen — used to label sample containers, document field logbooks,
data sheets and chain of custody.
• Stainless steel or plastic spoon — used for homogenizing soil samples within a stainless
steel or plastic bowl.
• Stainless steel or plastic bowl — used for homogenizing soil samples, when applicable.
• Camera — used for photo -documentation of sample locations and samples.
• Trash bag — used to dispose of gloves and any other non -hazardous waste generated
during sampling.
• Decontamination supplies and equipment.
2.1.1 Collection of Representative Samples
All sampling equipment will be decontaminated prior to use. The following procedure will be
used to collect each soil sample with a geo-probe:
• Locate general sampling locations and record coordinates with a GPS unit.
• Collect a soil column at each designated sampling location using a Geo-probe° or
hand auger. Combine sample "a" with sample "b" (as described in Section 3.1) in
mixing bowl and thoroughly mix.
• Transfer to the sample bottles and secure sample bottles tightly.
2.1.2 Sample Preservation, Containers, Handling and Storage
Chemical preservation of soils is generally not recommended. Cooling to 4°C on wet ice is
usually the best approach, supplemented by the appropriate holding time for the analyses
requested.
The Duke Energy Laboratory will supply the appropriate sample bottles for the collected soil
samples. The sample volume is a function of the analytical requirements and the Duke Energy
Laboratory will ensure the appropriate number of bottles are supplied. Ensure chain of custody
is completed for sample bottle return to the Duke Energy Laboratory.
Table 1 contains a list of parameters to be analyzed with corresponding reporting units and
analytical methods. If a parameter or group of parameters is not included in Table 1, the
laboratory performing the analysis should be contacted to determine the appropriate sample
bottles, volumes, and preservatives.
All non -dedicated sampling devices should be decontaminated and wrapped in plastic. The
sampling device should remain in this wrapping until it is needed. Each sampling device should
be used for only one sample and then decontaminated or disposed of. Non -dedicated sampling
devices should be cleaned in the field using the decontamination procedure described below.
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Stockpiled Soil Sampling Plan — Rev. 1
June 19, 2019
Asheville Steam Electric Plant
2.1.3 Decontamination
Decontamination procedures can be time consuming; having a sufficient quantity of sampling
tools available is recommended. All non -dedicated sampling equipment must be
decontaminated prior to reuse. Equipment decontamination consists of:
1. Detergent wash and brush cleaning
2. Tap water rinse
3. De -ionized water rinse
4. Air dry
Wrap sampling tools with plastic
3.0 SOIL SAMPLING AND ANALYSIS
3.1 Soil Sampling
Sample locations will be collected in a manner similar to UST Guidelines for Sampling. Six (6)
distinct samples will be collected for every 12,000 cy of soil at varying depths and will be
compiled into one composite sample for analysis. The approximate sample locations are shown
in Figure 1. The first depth (sample a) will be collected from 0.5 to 1 ft. below the surface of the
stock pile, and the second depth (sample b) will be collected from a depth estimated to be the
center height of the stockpile, at least 5 ft. below the stockpile surface.
3.2 Sample Analysis
The composite samples will be sent to the Duke Energy Laboratory for analysis of total metals
and SPLP metals. The lab will test for the inorganic compounds listed in Table 1. The results will
be compared to site background levels, and any exceedances of background concentrations will
be compared to Industrial/Commercial Preliminary Soil Remediation Goals (PSRG) set forth by
NCDEQ. The analytical data will be shared with NCDEQ Division of Waste Management (DWM)
for approval prior to the reuse and relocation of the material.
4.0 DOCUMENTATION
A comprehensive report will be submitted to NCDEQ DWM, Solid Waste Section and include the
associated lab reports. If an exceedance is found when data is compared to
Industrial/Commercial PSRG levels, then Duke Energy will discuss further action and/or
additional sampling plans with NCDEQ.
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Stockpiled Soil Sampling Plan — Rev. 1
June 19, 2019
Asheville Steam Electric Plant
5.0 TABLES/FIGURES
TABLE 1— SOIL PARAMETERS AND ANALYTICAL METHODS
INORGANIC COMPOUNDS
UNITS
METHODI
Aluminum
mg/kg or µg/I
EPA 6010D
Antimony
mg/kg or µg/I
EPA 6020E
Arsenic
mg/kg or µg/I
EPA 6020E
Barium
mg/kg or µg/I
EPA 6010D
Beryllium
mg/kg or µg/I
EPA 6020B
Boron
mg/kg or µg/I
EPA 6010D
Cadmium
mg/kg or µg/I
EPA 6020B
Calcium
mg/kg or µg/I
EPA 6010D
Chloride
mg/kg or µg/I
EPA 9056A
Chromium
mg/kg or µg/I
EPA 6010D
Cobalt
mg/kg or µg/I
EPA 6020E
Copper
mg/kg or µg/I
EPA 6010D
Hexavalent Chromium
mg/kg or µ
EPA Methodg/I 7199/218.7
Iron
mg/kg or µg/I
EPA 6010D
Lead
mg/kg or µg/I
EPA 6020E
Magnesium
mg/kg or µg/I
EPA 6010D
Manganese
mg/kg or µg/I
EPA 6010D
Mercury
mg/kg or µg/I
EPA Method
7470A/7471B
Molybdenum
mg/kg or µg/I
EPA 6010D
Nickel
mg/kg or µg/I
EPA 6010D
Nitrate as Nitrogen
mg/kg or µg/I
EPA 9056A
pH
SU
EPA 9045D
Potassium
mg/kg or µg/I
EPA 6010D
Selenium
mg/kg or µg/I
EPA 6020E
Silver
mg/kg or µg/I
EPA 6020E
Sodium
mg/kg or µg/I
EPA 6010D
Strontium
mg/kg or µg/I
EPA 6010D
Sulfate
mg/kg or µg/I
EPA 9056A
Thallium (low level) (SPLP Extract only)
mg/kg or µg/I
EPA 6020E
Vanadium
mg/kg or µg/I
EPA 6020E
Zinc
mg/kg or µg/I
EPA 6010D
Notes:
1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH
using USEPA Method 9045, as noted above (or similar approved methods). Soil samples will
also be analyzed for leaching potential using SPLP Extraction Method 1312 in conjunction with
USEPA Methods 6010/6020 (or similar approved methods).
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Stockpiled Soil Sampling Plan — Rev. 1 June 19, 2019
Asheville Steam Electric Plant
FIGURE 1— SOIL STOCKPILE SAMPLING MAP
N
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