P1226_Sept 2019 Bi Annual GW Report_20191122

S&ME, Inc. | 3201 Spring Forest Road | Raleigh, NC 27616 | p 919.872.2660 | www.smeinc.com
November 22, 2019
North Carolina Department of Environmental Quality
Division of Waste Management, Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699
Attention: Mr. Ed Mussler via email: [e-mail]
Reference: September 2019 Bi-Annual Groundwater Sampling Event
Owen Farm Borrow Pit Solid Waste Demonstration Project
Plymouth, North Carolina
S&ME Project No. 1040-01-537
Dear Mr. Mussler:
S&ME, Inc., on behalf of Geo-Specialty Chemicals (GSC), is submitting the September 2019 Bi-Annual Groundwater
Sampling Report as required under the conditions of the Solid Waste Demonstration Project which GSC is
performing with the North Carolina Department of Environmental Quality - Division of Waste Management.

The enclosed report presents analytical results of groundwater sampling conducted at the Owen Farm Borrow Pit
in Plymouth, North Carolina. In accordance with a letter from the Division, dated August 21, 2019, groundwater
was sampled for aluminum and field parameters of specific conductance, temperature and pH were collected. The
reported concentrations of aluminum are below the calculated value of 3.5 mg/l and have been less than 3.5 mg/l
for three consecutive sampling events (2015, 2017, and 2019). Therefore, we respectfully request that DEQ allow
GSC to discontinue the bi-annual groundwater sampling at the Owen Farm Borrow Pit.
If you have any questions or require additional information, please contact our office at [phone].
Sincerely,
S&ME, Inc.
Jason Volker, LSS Samuel P. Watts, P.G.
Environmental Scientist Senior Project Manager
[e-mail] [e-mail]

Attachment: September 2019 Annual Groundwater Sampling Event, dated November 22, 2019

cc: Ms. Charita Redding (GSC)
Mr. Perry White (GSC)

S&ME, Inc. | 3201 Spring Forest Road | Raleigh, NC 27616 | p 919.872.2660 | www.smeinc.com
November 22, 2019
Geo-Specialty Chemicals
P.O. Box 68
Plymouth, NC 27962
Attention: Mr. Perry White via email: [e-mail]
Reference: SEPTEMBER 2019 BI-ANNUAL GROUNDWATER SAMPLING EVENT
Owen Farm Borrow Pit - Solid Waste Demonstration Project
Plymouth, North Carolina
S&ME Project No. 1040-01-537
Dear Mr. White:
S&ME, Inc. (S&ME) is pleased to provide you with the September 2019 sampling report as required under the
conditions of the Solid Waste Demonstration Project which Geo-Specialty Chemicals (GSC) is performing with the
North Carolina Department of Environmental Quality - Division of Waste Management (NCDEQ-DWM). This
report presents analytical results of groundwater samples collected from selected monitor wells located at the
Owen Farm Borrow Pit in Plymouth, North Carolina (Figure 1).
 Project Background
In September 1994, GSC (as CYTEC Industries, Inc.) received approval from the DWM to use processed silica to
assist in the restoration of selected tracts of farm land to productive use. Specifically, approximately 48,000 cubic
yards of processed silica were used, over a period of two years, to fill a soil borrow pit to an elevation compatible
with adjacent fields. Operational conditions of the Solid Waste Demonstration Project included groundwater
monitoring at the site.
Since 1994, GSC has conducted groundwater monitoring at the site and submitted the sampling results to the
DWM on a semi-annual basis initially, followed by periods of annual, and biannual monitoring and reporting.
Following review of the September 2017 Bi-Annual Groundwater Sampling Event report, the DWM issued a letter
dated August 21, 2019 agreeing with S&ME’s request (on behalf of GSC) to discontinue monitoring sulfate
concentrations in groundwater. The letter requested the continuation of monitoring for aluminum “…until such
time concentrations in groundwater are below the calculated value of 3.5 mg/l for a period of three (3)
consecutive years”. A copy of DWM’s 2017 letter is attached for reference in Appendix III.
 Groundwater Measurement and Sampling Activities
On September 16, 2019, S&ME personnel visited the referenced site to collect groundwater samples from the four
selected monitor wells (MW-1, MW-2, MW-3, and MW-4). Depth to groundwater was measured in each well prior
to sampling. Water level measurements were compared to the surveyed measuring points on the wells and
converted to relative groundwater elevations. These elevations were used to construct the attached groundwater

Owen Farm Borrow Pit - Solid Waste Demonstration Project November 22, 2019
Geo-Specialty Chemicals Page 2
S&ME, Inc.
potentiometric map (see Figure 2). These results show that groundwater flow continues to flow toward the west,
in accordance with previous data.
Using bailers, the monitor wells were purged of three well volumes of water prior to collecting samples for
analysis. While purging the wells, specific conductivity, pH, and temperature were measured in the groundwater
collected from each well. These field data are summarized in Table 1. Groundwater samples designated for
laboratory analysis were then collected by dedicated bailers and placed in laboratory-supplied containers, stored
on ice, and transported under standard Chain-of-Custody protocol to ENCO Laboratories, located in Cary, North
Carolina.
 Laboratory Analytical Results
The samples were analyzed for total aluminum by EPA Method 6010D. Table 2 summarizes the laboratory
analytical results for the September 2019 groundwater sampling event. Total aluminum concentrations in the
samples ranged from 0.372 mg/L in well MW-2 to 1.77 mg/L in well MW-4. A copy of the laboratory analytical
results is included as an attachment in Appendix IV.
 Discussion of Results
Reported aluminum concentrations for the 2019 sampling event are less than 3.5 mg/L in all four monitor wells, as
they were for the previous two sampling events (2015 and 2017).
Table 3 summarizes the historical analytical data from previous and current sampling events for comparison. In
comparing the September 2019 sampling event data with the results of the previous sampling event of September
2017, the following trends can be seen:
• Aluminum concentrations in groundwater decreased in all four monitor wells;
Figures 3 and 4 are also presented for evaluation of historical trends in the laboratory analytical results for
aluminum and sulfate concentrations, respectively. (Note, sulfate concentrations are no longer being monitored).
As shown on Figure 3, aluminum concentrations appear variable in all four wells from October 1994 through
March 1998. After that date, aluminum levels remained consistently low, with most results being at or below 5
mg/L through March 2001. The aluminum results show some fluctuation in recent years but with peaks at or
below 20 mg/L. For the current sampling event, reported aluminum concentrations in groundwater samples
range from 0.372 mg/L in MW-2 to 1.77 mg/L in MW-4.
As shown on Figure 4, the historical sulfate concentrations are somewhat more variable. After mid-1999, sulfate
levels in samples from wells MW-1 and MW-2 remain approximately below 75 mg/L while the levels in MW-3 and
MW-4 become more elevated and variable. Sulfate levels in these two wells in March 2006 exceeded the sulfate
2L Groundwater Standard. Since that event, sulfate levels continued to fluctuate, but remained below the 2L
Standard of 250 mg/L for sulfate.
Figure 5 provides a historical record of the pH of groundwater from all four monitor wells. Groundwater pH
measured during the September 2019 sampling event is consistent with measurements recorded during the
September 2017 event. Overall, since 1995 there has been little variability in pH levels recorded at the site, with a
slightly higher pH in monitor well MW-2, relative to the other three wells.

Owen Farm Borrow Pit - Solid Waste Demonstration Project November 22, 2019
Geo-Specialty Chemicals Page 3
S&ME, Inc.
 Recommendations
The reported groundwater concentrations of aluminum have been less than 3.5 mg/L in all four monitor wells for
three consecutive sampling events (2015, 2017, and 2019). In accordance with the 2017 letter from DWM, S&ME
recommends GSC request DEQ approve GSC discontinue groundwater monitoring at the Owen Farm Borrow Pit.
 Closing
S&ME appreciates the opportunity to be of service to GSC. If you have any questions or require additional
information, please contact our office at [phone].
Sincerely,
S&ME, Inc.

Jason Volker, LSS Samuel P. Watts, P.G.
Environmental Scientist Senior Project Manager
[e-mail] [e-mail]

Attachments
Attachment I – Tables
Attachment II – Figures
Attachment III – Correspondence
Attachment IV – Laboratory Analytical Report

cc: Ms. Charita Redding, (GSC)

Attachments

S&ME, Inc.

Attachment I – Tables

Monitor TOC Depth to Depth to Groundwater Specific
Well Elevation Water Bottom Elevation Temp Conductance
I.D.(feet)From TOC of Well (feet)(oC)pH (mS/cm)
(feet)(feet)
MW-1 39.41 6.45 20.05 32.96 22.7 4.10 211
MW-2 35.62 19.8 30.05 15.82 18.1 4.60 194
MW-3 24.61 10.67 19.20 13.94 19.1 4.30 280
MW-4 32.31 14.36 26.43 17.95 18.3 4.10 487
oC - degrees Celsius
mS/cm – microSiemens per centimeter
pH – standard units
MW-1 MW-2 MW-3 MW-4
(mg/L)(mg/L)(mg/L)(mg/L)
1.010 0.372 1.210 1.770
mg/L - milligrams per Liter
PLYMOUTH, NORTH CAROLINA
S&ME PROJECT NO. 1040-01-537
Analyte
Aluminum (Total)
TABLE 2
LABORATORY ANALYTICAL RESULTS
Quantitation Limits
September 16, 2019
TABLE 1
FIELD MEASUREMENT DATA
September 16, 2019
OWEN BORROW PIT
(mg/L)
0.100
OWEN BORROW PIT
PLYMOUTH, NORTH CAROLINA
S&ME PROJECT NO. 1040-01-537
T:\Projects\2001\ENV\01-537 Owen Farm Borrow Pit - Geospecialty Chemicals\Reports\2019 September\Sept_2019_Owen_HistData.xls
Monitor Analyte Oct-94 Mar-95 Jun-95 Sep-95 Dec-95 Apr-96 Nov-96 Mar-97 Sep-97 Mar-98 Sep-98 Apr-99 Oct-99 Mar-00 Sep-00 Jan-02 Mar-02 Sep-02 Mar-03 Sep-03 Mar-04 Sep-04 Mar-05 Oct-05 Mar-06 Sep-06 Mar-07 Sep-07 Mar-08 Sep-08 Sep-09 Sep-10 Sep-11 Sep-12 Sep-13 Sep-15 Sep-17 Sep-19
Well ID
Aluminum 62 3.8 1.7 2 2 3.17 6.88 0.260 2.34 1.53 1.80 1.37 1.48 1.46 1.36 3.24 2.16 2.03 3.92 1.61 2.25 1.18 1.23 1.3 1.28 1.43 7.16 9.45 1.48 1.4 1.59 5.91 1.64 1.87 1.43 0.92 1.42 1.01
MW-1 Sulfate 76 77 88 56 81 63.3 56.2 46.8 45.9 53 49.7 47.7 46.7 55.4 41 75 59 53 69 52 59.2 52.6 51.7 62 112 52.0 47 47.2 56.4 70 56.6 54.5 54.2 49.1 40.0 32.0 34.0 NA
pH 3.9 4.4 4.4 4.1 4.0 4.5 4.4 4.8 4.2 3.9 4.4 4.7 4.0 4.3 3.8 4.2 5.3 5.6 6.4 4.8 5.8 4.8 4.4 4.9 4.8 4.2 4.43 3.9 3.8 3.72 4.20 3.98 4.04 4.40 4.08 3.90 4.10 4.10
Aluminum 18 4.6 2 11 15 4.14 4.85 0.113 4.35 0.450 0.352 0.270 0.794 0.329 0.399 0.147 0.402 0.595 6.28 4.07 1.51 2.39 <0.20 1.50 2.41 3.56 2.53 2.32 0.74 <0.10 3.6 0.441 1.05 4.77 6.22 2.5 2.19 0.372
MW-2 Sulfate 23 32 31 25 24 28.8 23.0 17.3 24.7 33 28.9 30.9 34.8 27.9 26.8 44 29 39.5 43 25 30.7 29.3 24.4 36.6 29.1 38 33 44.5 35.6 49 36.8 46.5 35.1 37 36 37 46 NA
pH 4.7 4.6 4.6 4.9 5.0 4.9 4.8 5.9 4.7 5.3 4.7 5.0 5.7 4.8 4.2 4.6 5.1 6.0 6.0 5.2 6.4 5.6 4.3 8.9 5.3 4.6 5.04 4.6 5.2 4.31 4.28 4.72 4.75 5.10 4.32 4.30 4.60 4.60
Aluminum 6.3 4.4 1.9 24 24 3.78 7.82 0.106 5.67 0.482 0.935 0.508 0.634 1.21 0.648 1.95 1.62 1.85 7.37 2.46 11.5 5.27 3.38 4.78 2.5 9.06 3.74 7.4 8.2 1.55 4.15 4.93 0.372 4.21 5.69 2.77 2.00 1.21
MW-3 Sulfate 25 26 21 21 27 26.7 23.4 34.3 48.8 36 61.5 63.3 25.4 137.5 35 150 110 145 25 12 235 134 242 63.5 332 83 200 105 75.7 185 97.7 182 5 97.8 97 200 93 NA
pH 4.3 5.5 5.5 4.2 5.0 5.1 4.6 5.3 4.5 4.7 4.6 4.7 4.6 4.3 4.1 4.6 3.3 5.0 6.7 4.6 7.0 4.4 3.9 7.5 4.6 4.2 4.47 4.0 4 3.68 3.07 4.09 4.42 4.54 3.92 3.80 4.20 4.30
Aluminum 24 9.2 3.3 17 60 6.33 2.93 BQL 14.7 0.746 1.19 0.501 0.889 1.46 0.607 1.03 2.25 2.19 8.17 4 3.56 1.38 2.6 2.33 2.79 3.36 3.69 18.2 1.73 1.56 2.77 2.20 2.83 5.90 4.56 2.98 2.66 1.77
MW-4 Sulfate 64 63 95 68 73 55.5 60.4 16.6 49.1 50 61.2 53.7 50.5 241 49 80 63 79 69 59 244 161 97.8 183 430 95.0 234 113 81.6 84 76 187 77 79 90 210 220 NA
pH 4.4 4.3 4.3 4.4 5.0 4.5 4.4 4.7 4.6 4.7 4.6 4.5 4.3 4.2 3.9 5.4 4.6 5.4 6.2 4.4 5.8 4.5 4.2 6.0 4.6 4.2 4.30 4.1 3.8 3.94 2.92 4.13 4.24 4.17 3.79 3.80 4.20 4.10
Aluminum and Sulfate concentration values are reported in mg/L units.
pH values are reported in standard units.
NA = Not Analyzed
TABLE 3
HISTORICAL SUMMARY OF GROUNDWATER QUALITY DATA
OWEN FARM BORROW PIT
PLYMOUTH, NORTH CAROLINA
S&ME PROJECT NO. 1040-01-537
T:\Projects\2001\ENV\01-537 Owen Farm Borrow Pit - Geospecialty Chemicals\Reports\2019 September\Sept_2019_Owen_HistData.xls

S&ME, Inc.

Attachment II – Figures

SCALE:
DATE:
PROJECT NUMBER
FIGURE NO.Drawing Path: Q:\1040\01\537 owens farm\DWG\SITE VICINITY MAP.dwgN
0 2000 4000
(IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALE
OWEN FARMS BARROW PIT
GEO-SPECIALITY CHEMICAL
PLYMOUTH, NORTH CAROLINA
1
1040-01-537
10/03/19
1" = 2000'SITE VICINITY MAP
SITE
REFERENCE:
PLYMOUTH WEST, N.C. USGE QUADRANGLE DATED 2018
MW-1MW-4MW-3MW-2DIRT ROADSR 1
1
0
0
LON
G

R
I
D
G
E

R
O
A
D
SR 1106APPROXIMATE LIMITS OFMONITOR WELLGROUNDWATER ELEVATION (FT.)GROUNDWATER FLOW DIRECTIONMW-2(34.12)LEGEND(32.96)POTENTIOMETRIC SURFACE20(DASHED WHERE INFERRED)(13.94)(17.95)(15.82)±3.6 ACRESWASTE DISPOSAL AREA20
30
16182224
26
28
20
30
16182224
26
28
N060120 (IN FEET)GRAPHIC SCALE (IN FEET)GRAPHIC SCALEFIGURE NO.Drawing path: Q:\1040\01\537 owens farm\DWG\POTENTIOMETRIC MAP.dwg
PROJECT NUMBERDATE:SCALE:OWEN FARMS BARROW PIT
GEO-SPECIALITY CHEMICAL
PLYMOUTH, NORTH CAROLINA210/03/19POTENTIOMETRIC MAP SEPTEMBER 2019
1" = 60'1040-01-537
0
10
20
30
40
50
60
70
Oct-94Feb-95Jun-95Oct-95Feb-96Jun-96Oct-96Feb-97Jun-97Oct-97Feb-98Jun-98Oct-98Feb-99Jun-99Oct-99Feb-00Jun-00Oct-00Feb-01Jun-01Oct-01Feb-02Jun-02Oct-02Feb-03Jun-03Oct-03Feb-04Jun-04Oct-04Feb-05Jun-05Oct-05Feb-06Jun-06Oct-06Feb-07Jun-07Oct-07Feb-08Jun-08Oct-08Feb-09Jun-09Oct-09Feb-10Jun-10Oct-10Feb-11Jun-11Oct-11Feb-12Jun-12Oct-12Feb-13Jun-13Oct-13Feb-14Jun-14Oct-14Feb-15Jun-15Oct-15Feb-16Jun-16Oct-16Feb-17Jun-17Oct-17Feb-18Jun-18Oct-18Feb-19Jun-19Concentration (mg/L)Date
Figure 3
Total Aluminum Concentration in mg/L vs Time
MW-1 MW-2 MW-3 MW-4
Owen Farm Borrow Pit
S&ME Project 1040-01-537
0
50
100
150
200
250
300
350
400
450
500
Oct-94Feb-95Jun-95Oct-95Feb-96Jun-96Oct-96Feb-97Jun-97Oct-97Feb-98Jun-98Oct-98Feb-99Jun-99Oct-99Feb-00Jun-00Oct-00Feb-01Jun-01Oct-01Feb-02Jun-02Oct-02Feb-03Jun-03Oct-03Feb-04Jun-04Oct-04Feb-05Jun-05Oct-05Feb-06Jun-06Oct-06Feb-07Jun-07Oct-07Feb-08Jun-08Oct-08Feb-09Jun-09Oct-09Feb-10Jun-10Oct-10Feb-11Jun-11Oct-11Feb-12Jun-12Oct-12Feb-13Jun-13Oct-13Feb-14Jun-14Oct-14Feb-15Jun-15Oct-15Feb-16Jun-16Oct-16Feb-17Jun-17Oct-17Feb-18Jun-18Oct-18Feb-19Jun-19Concentration (mg/L)Date
Figure 4
Sulfate Concentration in mg/L vs Time
MW-1 MW-2 MW-3 MW-4 Owen Farm Borrow PitS&ME Project 1040-01-537
0
1
2
3
4
5
6
7
8
9
10
Oct-94Feb-95Jun-95Oct-95Feb-96Jun-96Oct-96Feb-97Jun-97Oct-97Feb-98Jun-98Oct-98Feb-99Jun-99Oct-99Feb-00Jun-00Oct-00Feb-01Jun-01Oct-01Feb-02Jun-02Oct-02Feb-03Jun-03Oct-03Feb-04Jun-04Oct-04Feb-05Jun-05Oct-05Feb-06Jun-06Oct-06Feb-07Jun-07Oct-07Feb-08Jun-08Oct-08Feb-09Jun-09Oct-09Feb-10Jun-10Oct-10Feb-11Jun-11Oct-11Feb-12Jun-12Oct-12Feb-13Jun-13Oct-13Feb-14Jun-14Oct-14Feb-15Jun-15Oct-15Feb-16Jun-16Oct-16Feb-17Jun-17Oct-17Feb-18Jun-18Oct-18Feb-19Jun-19pHDate
Figure 5
pH vs Time
MW-1 MW-2 MW-3 MW-4 Owen Farm Borrow Pit
S&ME Project 1040-01-537

S&ME, Inc.

Attachment III – Correspondence

DWM Letter, August 21, 2019

S&ME, Inc.

Attachment IV – Laboratory Analytical Report
102-A Woodwinds Industrial Court
Cary NC, 27511
919.467.3090 919.467.3515Phone:FAX:
ENCO Workorder(s): CC15469
Raleigh, NC 27616
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
Enclosure(s)
Project Number: 1040-01-537, Project Name/Desc: Owen Farm Borrow Pit
Attn: Sam Watts
S&ME, Inc. (SM001)
3201 Spring Forest Road
Chuck Smith
Project Manager
Monday, September 23, 2019
RE: Laboratory Results for
Dear Sam Watts,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, September 17, 2019.
Enclosure(s)
Page 1 of 7This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL
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SAMPLE SUMMARY/LABORATORY CHRONICLE
MW-1 CC15469-01 Sampled:09/16/19 12:20 Received:09/17/19 12:00Client ID:Lab ID:
Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation
EPA 6010D 03/14/20 09/18/19 11:54 09/20/19 12:03EPA 3005A
MW-2 CC15469-02 Sampled:09/16/19 11:05 Received:09/17/19 12:00Client ID:Lab ID:
Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation
EPA 6010D 03/14/20 09/18/19 11:54 09/20/19 12:51EPA 3005A
MW-3 CC15469-03 Sampled:09/16/19 11:25 Received:09/17/19 12:00Client ID:Lab ID:
Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation
EPA 6010D 03/14/20 09/18/19 11:54 09/20/19 12:53EPA 3005A
MW-4 CC15469-04 Sampled:09/16/19 11:55 Received:09/17/19 12:00Client ID:Lab ID:
Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation
EPA 6010D 03/14/20 09/18/19 11:54 09/20/19 12:56EPA 3005A
Page 2 of 7This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL
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SAMPLE DETECTION SUMMARY
Lab ID:Client ID:MW-1 CC15469-01
Analyte MethodUnitsPQLResultsFlag NotesMDL
1010 100 ug/L EPA 6010D Aluminum - Total 42.0
Lab ID:Client ID:MW-2 CC15469-02
Analyte MethodUnitsPQLResultsFlag NotesMDL
372 100 ug/L EPA 6010D Aluminum - Total 42.0
Lab ID:Client ID:MW-3 CC15469-03
Analyte MethodUnitsPQLResultsFlag NotesMDL
1210 100 ug/L EPA 6010D Aluminum - Total 42.0
Lab ID:Client ID:MW-4 CC15469-04
Analyte MethodUnitsPQLResultsFlag NotesMDL
1770 100 ug/L EPA 6010D Aluminum - Total 42.0
Page 3 of 7This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL
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ANALYTICAL RESULTS
MW-1Description:Lab Sample ID:CC15469-01 09/17/19 12:00Received:
CC15469Work Order:09/16/19 12:20Sampled:Ground WaterMatrix:
Bob BryantSampled By:Project:Owen Farm Borrow Pit
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number]
ug/L EPA 6010D 09/20/19 12:03Aluminum [7429-90-5]^42.0 JDH9I180341001010 1
MW-2Description:Lab Sample ID:CC15469-02 09/17/19 12:00Received:
CC15469Work Order:09/16/19 11:05Sampled:Ground WaterMatrix:
Bob BryantSampled By:Project:Owen Farm Borrow Pit
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number]
ug/L EPA 6010D 09/20/19 12:51Aluminum [7429-90-5]^42.0 JDH9I18034100372 1
MW-3Description:Lab Sample ID:CC15469-03 09/17/19 12:00Received:
CC15469Work Order:09/16/19 11:25Sampled:Ground WaterMatrix:
Bob BryantSampled By:Project:Owen Farm Borrow Pit
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number]
ug/L EPA 6010D 09/20/19 12:53Aluminum [7429-90-5]^42.0 JDH9I180341001210 1
MW-4Description:Lab Sample ID:CC15469-04 09/17/19 12:00Received:
CC15469Work Order:09/16/19 11:55Sampled:Ground WaterMatrix:
Bob BryantSampled By:Project:Owen Farm Borrow Pit
Metals (total recoverable) by EPA 6000/7000 Series Methods
^ - ENCO Cary certified analyte [NC 591]
NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number]
ug/L EPA 6010D 09/20/19 12:56Aluminum [7429-90-5]^42.0 JDH9I180341001770 1
Page 4 of 7This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL
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QUALITY CONTROL DATA
Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control
Batch 9I18034 - EPA 3005A
Prepared: 09/18/2019 11:54 Analyzed: 09/20/2019 11:10Blank (9I18034-BLK1)
FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL
Spike Source %REC RPD
ug/L10042.0 U Aluminum
Prepared: 09/18/2019 11:54 Analyzed: 09/20/2019 11:16LCS (9I18034-BS1)
FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL
Spike Source %REC RPD
ug/L100 2000 80-1201082150 Aluminum
Prepared: 09/18/2019 11:54 Analyzed: 09/20/2019 11:19Matrix Spike (9I18034-MS1)
Source: CC14563-01
FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL
Spike Source %REC RPD
ug/L100 2000 75-12510746.62180 Aluminum
Prepared: 09/18/2019 11:54 Analyzed: 09/20/2019 11:21Matrix Spike Dup (9I18034-MSD1)
Source: CC14563-01
FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL
Spike Source %REC RPD
ug/L100 2000 2075-125104 246.62130 Aluminum
Prepared: 09/18/2019 11:54 Analyzed: 09/20/2019 11:24Post Spike (9I18034-PS1)
Source: CC14563-01
FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL
Spike Source %REC RPD
mg/L0.100 2.00 80-1201150.04662.34 Aluminum
Page 5 of 7This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL
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FLAGS/NOTES AND DEFINITIONS
The sample was analyzed at dilution.
The analyte was detected in the associated method blank.
The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
MRL
E
U
J
D
B
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.PQL
Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.[CALC]
Page 6 of 7This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL