20231655 Ver 1_2.2 LaBella - Hickory NE WWTP Soil Characterization_20240408

LaBella
Powerea by partnersnip.
July 5, 2023
Mr. Rodney Hamby
Landfill Superintendent
Catawba County
4017 Rocky Ford Road
Newton, NC 28658
RE: Waste Characterization
City of Hickory NE WWTP
LaBella Project No. 2232469
Dear Rodney:
In accordance with our proposal dated May 23, 2023, and Catawba County Purchase Order No.
2023001194, LaBella Associates, P.C. (LaBella) is providing this letter report documenting activities
associated with the characterization of dried sludge material located at the City of Hickory Northeast
Wastewater Treatment Plant (WWTP). The material is reportedly being removed as part of facility
construction. Catawba County retained LaBella to collect samples of the material for metals analysis
using the Toxicity Characteristic Leaching Procedure (TCLP). The following is a brief discussion of
field activities and laboratory analytical results. Table 1 (attached) summarizes the location of each
grab sample collected as part of sampling activities.
Field Activities
On June 7, 2023, LaBella personnel collected samples of the dried sludge material for TCLP metals
characterization. The sampling protocol was developed based on a Standard Operating Procedure
(SOP) provided to LaBella by Catawba County. The area to be sampled ("Basin 3") had previously
been divided into three roughly equal -sized areas by another consultant. Ten (10) soil borings were
advanced within each of the three subareas in a generally evenly spaced pattern. Table 1
summarizes the coordinates of each boring location. Each boring was advanced via hand auger to
the estimated bottom of the sludge material (generally about 2 feet below ground surface (bgs)).
A grab sample of the sludge material was collected from each boring and placed into a quart -sized
reclosable bag and homogenized by hand pressure. The ten grab samples collected from each
subarea were then emptied into a stainless -steel bowl and mixed until homogenized. Once the
material was thoroughly mixed, two composite samples were collected from the bowl into laboratory -
supplied glassware, labeled, and stored on ice for shipment to the laboratory under chain -of -custody
control. This process was repeated for each subarea for a total of six composite samples (ES-1, ES-2,
MS-1, MS-2, WS-1, WS-2).
The six composite samples were transported via overnight express to Analytical Environmental
Services, Inc. of Atlanta, Georgia for analysis of TCLP metals using USEPA Methods
SW1311/601OD/7470A.
Results and Conclusions
Lead was detected in four of the six samples (MS-1, MS-2, WS-1, and WS-2) at concentrations
ranging from 0.0818 to 0.527 milligrams per liter (mg/L). These concentrations are below the
characteristically hazardous limit for lead of 5 mg/L. No other metals were detected in any of the
12-D Oak Branch Drive Greensboro, NC 27407 p [phone]
WWVV.LaUeLLapc.corn

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samples above the method reporting limit. Based on these results, the dried sludge material is not a
hazardous waste based on metals content.
We appreciate providing this service to Catawba County. Please contact me at
[e-mail] or 804-980-7467 if you have questions or need additional information.
Respectfully submitted,
La Bella Associates
UU9
John G. Westerfield, PG
Environmental Director - Sr. Technical Geologist
Attachments: Table 1 - Soil Boring Locations
Laboratory Certificates -of -Analysis (June 20, 2023)

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ANALYTICAL ENVIRONMENTAL SERVICES, INC.
AES
June 20, 2023
John Westerfield
LaBella Associates
1604 Ownby Lane
Richmond VA 23220
RE: Catawba - Hickory NE WWTP
Dear John Westerfield: Order No: 2306802
Analytical Environmental Services, Inc. received 6 samples on June 8, 2023 9:42 am
for the analyses presented in following report.
"No problems were encountered during the analyses except as noted in the Case Narrative or by qualifiers in
the report or QC Summary. Additionally, all results for the associated Quality Control samples were within
EPA and/or AES established limits.
AES' certifications are as follows:
-NELAP/Florida State Laboratory ID E87582 for analysis of Non -Potable Water, Solid & Chemical Materials,
Air & Emissions for Organics, and Drinking Water Microbiology & Metals, effective 07/01/22-06/30/23.
-North Carolina Certification number 562 for analysis of Surface Water, Groundwater, Effluent, effective until
12/31/23.
-South Carolina Environmental Laboratory Certification number 98016003 effective until 6/30/23.
These results relate only to the items tested as received. This report may only be reproduced in full and with
written permission from the laboratory.
If you have any questions regarding these test results, please feel free to call.
Sincerely,
Eben Buchanan
Project Manager
MSO Pry isld:ntial Drive • Atlanta, Georgia 30340 • T-1 770.457,81.77 . Fax- 770-457.SISS • Tail F,r .: 800.972.4889
wanv_aesitsant a.cc am
Page 1 of 13

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Analytical Environmental Services, Inc
Date: 20-Jun-23
Client:
LaBella Associates
Client Sample ID:
ES-1
Project Name:
Catawba - Hickory NE W WTP
Collection Date:
6/7/2023 9:30:00 AM
Lab ID:
2306802-001
Matrix:
Soil
Reporting
Dilution
Analyses
Result
Qual
Units BatchID
Date Analyzed
Analyst
Limit
Factor
MERCURY, TCLP SW1311/7470A
(SW7470A)
Mercury
BRL
0.00400
mg/L 357911
1
06/13/2023 20:08
SK
ICP METALS, TCLP SW1311/6010D
(SW3010A)
Arsenic
BRL
0.250
mg/L 357947
1
06/13/202317:32
EH
Barium
BRL
0.500
mg/L 357947
1
06/13/202317:32
EH
Cadmium
BRL
0.0250
mg/L 357947
1
06/13/202317:32
EH
Chromium
BRL
0.0500
mg/L 357947
1
06/13/202317:32
EH
Lead
BRL
0.0500
mg/L 357947
1
06/13/202317:32
EH
Selenium
BRL
0.100
mg/L 357947
1
06/13/202317:32
EH
Silver
BRL
0.0250
mg/L 357947
1
06/13/202317:32
EH
Qualifiers: *
Value exceeds maximum contaminant level
BRL
Below reporting limit
H
Holding times for preparation or analysis exceeded
N
Analyte not NELAC certified
B
Analyte detected in the associated method blank
>
Greater than Result value
E Estimated (value above quantitation range)
S Spike Recovery outside limits due to matrix
Nan See case narative
F Analyzed in the lab which is a deviation from the method
< Less than Result value
J Estimated value detected below Reporting Limit
Page 3 of 13

Analytical Environmental Services, Inc
Date: 20-Jun-23
Client:
LaBella Associates
Client Sample ID:
ES-2
Project Name:
Catawba - Hickory NE W WTP
Collection Date:
6/7/2023 9:30:00 AM
Lab ID:
2306802-002
Matrix:
Soil
Reporting
Dilution
Analyses
Result
Qual
Units BatchID
Date Analyzed
Analyst
Limit
Factor
MERCURY, TCLP SW1311/7470A
(SW7470A)
Mercury
BRL
0.00400
mg/L 357911
1
06/13/2023 20:11
SK
ICP METALS, TCLP SW1311/6010D
(SW3010A)
Arsenic
BRL
0.250
mg/L 357947
1
06/13/202317:35
EH
Barium
BRL
0.500
mg/L 357947
1
06/13/202317:35
EH
Cadmium
BRL
0.0250
mg/L 357947
1
06/13/202317:35
EH
Chromium
BRL
0.0500
mg/L 357947
1
06/13/202317:35
EH
Lead
BRL
0.0500
mg/L 357947
1
06/13/202317:35
EH
Selenium
BRL
0.100
mg/L 357947
1
06/13/202317:35
EH
Silver
BRL
0.0250
mg/L 357947
1
06/13/202317:35
EH
Qualifiers: *
Value exceeds maximum contaminant level
BRL
Below reporting limit
H
Holding times for preparation or analysis exceeded
N
Analyte not NELAC certified
B
Analyte detected in the associated method blank
>
Greater than Result value
E Estimated (value above quantitation range)
S Spike Recovery outside limits due to matrix
Nan See case narative
F Analyzed in the lab which is a deviation from the method
< Less than Result value
J Estimated value detected below Reporting Limit
Page 4 of 13

Analytical Environmental Services, Inc
Date: 20-Jun-23
Client:
LaBella Associates
Client Sample ID:
MS-1
Project Name:
Catawba - Hickory NE W WTP
Collection Date:
6/7/2023 10:05:00 AM
Lab ID:
2306802-003
Matrix:
Soil
Analyses
Result
Reporting
Qual
Limit
Units BatchID
Dilution
Factor
Date Analyzed
Analyst
MERCURY, TCLP SW1311/7470A
(SW7470A)
Mercury
BRL
0.00400
mg/L 357911
1
06/13/2023 20:15
SK
ICP METALS, TCLP SW1311/6010D
(SW3010A)
Arsenic
BRL
0.250
mg/L 357947
1
06/13/202317:38
EH
Barium
BRL
0.500
mg/L 357947
1
06/13/202317:38
EH
Cadmium
BRL
0.0250
mg/L 357947
1
06/13/202317:38
EH
Chromium
BRL
0.0500
mg/L 357947
1
06/13/202317:38
EH
Lead
0.0897
0.0500
mg/L 357947
1
06/13/202317:38
EH
Selenium
BRL
0.100
mg/L 357947
1
06/13/202317:38
EH
Silver
BRL
0.0250
mg/L 357947
1
06/13/202317:38
EH
Qualifiers: *
Value exceeds maximum contaminant level
BRL
Below reporting limit
H
Holding times for preparation or analysis exceeded
N
Analyte not NELAC certified
B
Analyte detected in the associated method blank
>
Greater than Result value
E Estimated (value above quantitation range)
S Spike Recovery outside limits due to matrix
Nan See case narative
F Analyzed in the lab which is a deviation from the method
< Less than Result value
J Estimated value detected below Reporting Limit
Page 5 of 13

Analytical Environmental Services, Inc
Date: 20-Jun-23
Client:
LaBella Associates
Client Sample ID:
MS-2
Project Name:
Catawba - Hickory NE W WTP
Collection Date:
6/7/2023 10:05:00 AM
Lab ID:
2306802-004
Matrix:
Soil
Analyses
Result
Reporting
Qual
Limit
Units BatchID
Dilution
Factor
Date Analyzed
Analyst
MERCURY, TCLP SW1311/7470A
(SW7470A)
Mercury
BRL
0.00400
mg/L 357911
1
06/13/2023 20:19
SK
ICP METALS, TCLP SW1311/6010D
(SW3010A)
Arsenic
BRL
0.250
mg/L 357947
1
06/13/202317:41
EH
Barium
BRL
0.500
mg/L 357947
1
06/13/202317:41
EH
Cadmium
BRL
0.0250
mg/L 357947
1
06/13/202317:41
EH
Chromium
BRL
0.0500
mg/L 357947
1
06/13/202317:41
EH
Lead
0.0818
0.0500
mg/L 357947
1
06/13/202317:41
EH
Selenium
BRL
0.100
mg/L 357947
1
06/13/202317:41
EH
Silver
BRL
0.0250
mg/L 357947
1
06/13/202317:41
EH
Qualifiers: *
Value exceeds maximum contaminant level
BRL
Below reporting limit
H
Holding times for preparation or analysis exceeded
N
Analyte not NELAC certified
B
Analyte detected in the associated method blank
>
Greater than Result value
E Estimated (value above quantitation range)
S Spike Recovery outside limits due to matrix
Nan See case narative
F Analyzed in the lab which is a deviation from the method
< Less than Result value
J Estimated value detected below Reporting Limit
Page 6 of 13

Analytical Environmental Services, Inc
Date: 20-Jun-23
Client:
LaBella Associates
Client Sample ID:
WS-1
Project Name:
Catawba - Hickory NE W WTP
Collection Date:
6/7/2023 10:45:00 AM
Lab ID:
2306802-005
Matrix:
Soil
Reporting
Dilution
Analyses
Result
Qual
Units BatchID
Date Analyzed
Analyst
Limit
Factor
MERCURY, TCLP SW1311/7470A
(SW7470A)
Mercury
BRL
0.00400
mg/L 357911
1
06/13/2023 20:23
SK
ICP METALS, TCLP SW1311/6010D
(SW3010A)
Arsenic
BRL
0.250
mg/L 357947
1
06/13/202317:44
EH
Barium
BRL
0.500
mg/L 357947
1
06/13/202317:44
EH
Cadmium
BRL
0.0250
mg/L 357947
1
06/13/202317:44
EH
Chromium
BRL
0.0500
mg/L 357947
1
06/13/202317:44
EH
Lead
0.368
0.0500
mg/L 357947
1
06/13/202317:44
EH
Selenium
BRL
0.100
mg/L 357947
1
06/13/202317:44
EH
Silver
BRL
0.0250
mg/L 357947
1
06/13/202317:44
EH
Qualifiers: *
Value exceeds maximum contaminant level
BRL
Below reporting limit
H
Holding times for preparation or analysis exceeded
N
Analyte not NELAC certified
B
Analyte detected in the associated method blank
>
Greater than Result value
E Estimated (value above quantitation range)
S Spike Recovery outside limits due to matrix
Nan See case narative
F Analyzed in the lab which is a deviation from the method
< Less than Result value
J Estimated value detected below Reporting Limit
Page 7 of 13

Analytical Environmental Services, Inc
Date: 20-Jun-23
Client:
LaBella Associates
Client Sample ID:
WS-2
Project Name:
Catawba - Hickory NE W WTP
Collection Date:
6/7/2023 10:45:00 AM
Lab ID:
2306802-006
Matrix:
Soil
Reporting
Dilution
Analyses
Result
Qual
Units BatchID
Date Analyzed
Analyst
Limit
Factor
MERCURY, TCLP SW1311/7470A
(SW7470A)
Mercury
BRL
0.00400
mg/L 357911
1
06/13/2023 20:39
SK
ICP METALS, TCLP SW1311/6010D
(SW3010A)
Arsenic
BRL
0.250
mg/L 357947
1
06/13/202317:47
EH
Barium
BRL
0.500
mg/L 357947
1
06/13/202317:47
EH
Cadmium
BRL
0.0250
mg/L 357947
1
06/13/202317:47
EH
Chromium
BRL
0.0500
mg/L 357947
1
06/13/202317:47
EH
Lead
0.527
0.0500
mg/L 357947
1
06/13/202317:47
EH
Selenium
BRL
0.100
mg/L 357947
1
06/13/202317:47
EH
Silver
BRL
0.0250
mg/L 357947
1
06/13/202317:47
EH
Qualifiers: *
Value exceeds maximum contaminant level
BRL
Below reporting limit
H
Holding times for preparation or analysis exceeded
N
Analyte not NELAC certified
B
Analyte detected in the associated method blank
>
Greater than Result value
E Estimated (value above quantitation range)
S Spike Recovery outside limits due to matrix
Nan See case narative
F Analyzed in the lab which is a deviation from the method
< Less than Result value
J Estimated value detected below Reporting Limit
Page 8 of 13

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End of Report
Page 13 of 13