6002_Mecklenburg_HolbrooksRoad_MSWLF_LFGReport_FID1809786_20230704

kENR USE ONLY ❑Paper Report ❑Electronic Data - Email CD (data loaded: Yes / No Doc/Event #:
NC DENR I IEnvironmental Monitoring
Division of Waste Management - Solid Waste Reporting Form
Notice: This form and any information attached to it are 'Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
Prepare one form for each individually monitored unit.
Please type or print legibly.
Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification
must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing
condition, etc.).
Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits.
Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the
facility (NCAC 13B .1629 (4)(a)(i).
Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste
Section, 1646 Mail Service Center, Raleigh, NC 27699-1646.
Solid Waste Monitoring Data Submittal Information
Name of entity submitting data (laboratory, consultant, facility owner):
Mecklenburg County Solid Waste Services
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name: Amber R. Grzymski, P.G. Phone: [phone]
E-mail: [e-mail]
NC Landfill Rule: Actual sampling dates (e.g.,
Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006)
Holbrooks Road Landfill 15401 Holbrooks Road 60-02 .0500 June 13, 2023
Environmental Status: (Check all that apply)
Initial/Background Monitoring Detection Monitoring Assessment Monitoring ❑X Corrective Action
T e of data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells QX Methane gas monitoring data
Groundwater monitoring data from private water supply wells Fx-1 Corrective action data (specify) LF Gas System & Gas Probes
Leachate monitoring data ❑
Surface water monitoring data Other(specify)
Notification attached?
e No. No groundwater or surface water standards were exceeded.
Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water
monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and
preliminary analysis of the cause and significance of any concentration.
❑X Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample
values and explosive methane gas limits.
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct.
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas
levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
Amber R. Grzymski, P.G. Project Manager 980-314-3855
Facility RQpf esenta i am rint) Title (Area Code) Telephone Number
1 July 3, 2023 Affix NC Licensed/ Professional Geologist Seal
pppOBO®tl
Signatu —" Date
2145 Suttle Ave, Charlotte, NC 28208
Facility Representative Address
NC PE Firm License Number (if applicable effective May 1, 2009) LO
Revised 6/2009

MECKLENBURG COUNTY
Land Use and Environmental Services Agency
Solid Waste Services
July 3, 2023
Jaclynne Drummond
North Carolina Department of Environment
and Natural Resources
Division of Waste Management
2090 US Highway 70
Swannanoa, NC 28778
Subject: Holbrooks Road Landfill Permit 60-02
June 2023 Monthly CAP Report
Dear Ms. Drummond:
Mecklenburg County conducted monthly corrective action plan monitoring at the closed
Holbrooks Road Landfill on June 13, 2023, in accordance with the approved corrective action
plan dated November 2, 2018. This report details the results of that monitoring event.
Samples were collected from nine (9) landfill gas probes (HP-3, HP-4, HP-8R, HP-9, HP15R,
HP- 16R, HP- 18R, HP-24, HP-25, HP-26 and HP-27), nine (9) trench vents (MV-1, MV-2, MV-3,
MV-4, MV-5, MV-6, MV-7, MV-8 and MV-9), one on site building (Building), the passive flare
landfill gas system (SYS2) and the active landfill gas system (SYST, GWO1 and GW02).
Results of the landfill gas extraction systems are shown in Table 1. The Landfill Gas Monitoring
Data Form is also attached. The removal of water from the gas system has improved performance
and restored the vacuum to the gas wells. The valve on probe HP-9 is fully open and has been
since the modifications were complete on February 18, 2022. The valve will remain open to vent
the landfill gas in this area.
Please contact me at amber.grzmki@mecklenbur countync.gov or [phone] if you have
any questions regarding this report.
Sincerely,
Amber R. Grzymski, P.G.
Project Manager
Solid Waste Services
PEOPLE • PRIDE • PROGRESS • PARTNERSHIP
2145 Suttle Ave • Charlotte, North Carolina 28208 • [phone]
www.wipeoutwaste. corn

DATE: .June 13, 2023
BY: Matt Sexton
TABLE 1
Hol brooks Road CI osed NSW Landf i I I
Landf i I I Gas Col I ect i on and Cont r of Syst ern Nbni t or i ng
June 2023
Devi ce I D
Dat e/ Ti rre
CH4
CO2
02
Bal ance
I ni t .
ure
I attic
pressure
St at i c
Pressure
Adj . a f f .
Pressure*
I ni t .
FI ow
Adj .
FI ow
Syst ernTerrperat
Pressure
mil dd/ yyyy
%
%
%
%
deg F
i n H2O
i n H2O
i n H2O
SO m
SO m
in H2O
Syst
6/13/2023 12:17
7.4
8.1
12.9
71.6
68
-21.83
-21.83
-0.040
0.0
0.0
N/A
GW01
6/13/202312:42
10.9
16.5
4.4
68.2
79
-6.87
-6.79
-0.002
N/A
N/A
-21.97
GW02
6/13/202312:50
6.9
4.6
17.2
71.3
77
-19.76
-19.79
0.005
5.5
5.2
-21.94
Sys2
6/13/202312:08
29.2
30.4
0.2
40.2
68
N/A
N/A
N/A
N/A
N/A
N/A
*The differential pressure measurement should be positive. A negative differential pressure may indicate no gas flow. Negative differential pressure
can be the result of dirt or water obstructing the pitot tube perforations. Overpulling by adjacent extraction wells may also result in negative pressure
being displayed.
NR= not recorded

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REFERENCES
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1. TOPOGRAPHY FROM NCDOT GIS DEPARTMENT, BASED ON LIDAR DATA
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PROVIDED BY THE NC FLOOD MAPPING PROGRAM. TOPOGRAPHY IN
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ACTIVE AREAS FROM AERIAL SURVEY DATED FEBRUARY 27, 2018.
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2. PARCEL BOUNDARIES, STRUCTURE LOCATIONS, MONITORING WELLS,
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Landfill Gas Monitoring Data Form
Facility Name: Holbrooks Road Landfill Permit Number: 60-02
Date of Sampling: _6/13/2023 _NC Landfill Rule (.0500 or .1600): .0500
Name and Position of Sample Collector: Matt Sexton, Environmental Specialist
Type and Serial Number of Gas Meter: Gem 5000 #G507530
Calibration Date of Gas Meter: 4/18/2023 Date and Time of Field Calibration: 6/13/2023 09:50
Type of Field Calibration Gas (15/15 or 35/50): _35/50_
Expiration Date of Field Calibration Gas Canister: January 2028
Pump Rate of Gas Meter: 120 Seconds -Ambient Air Temperature: 68
Barometric Pressure: 29.14 General Weather Conditions: Sunny, S2
Sample ID
Time
% LEL
%
CH4
%
CO2
%
02
Comments
HP-3
11:42
4
0.2
16.1
2.1
HP-4
11:01
0
0
12.3
3.7
HP-8R
10:43
0
0
0.2
19.9
HP-9
09:57
0
0
0
20.2
HP-15R
10:34
0
0
0
19.9
HP-16R
10:22
0
0
7.9
14.8
HP-18R
10:30
2
0.1
6.4
13.2
HP-24
11:13
0
0
8.3
10.9
HP-25
11:07
56
2.8
7.3
12.1
HP-26
10:15
0
0
2.7
17.2
HP-27
10:05
0
0
0.2
20.2
BUILDING
10:47
0
0
0
20.2
MV-1
11:18
0
0
5.1
12.4
Passive Methane Trench Vent
MV-2
11:22
0
0
3.3
17.3
Passive Methane Trench Vent
MV-3
11:27
>100
20.2
19.2
6.6
Passive Methane Trench Vent
MV-4
11:32
>100
17.5
19.1
3.6
Passive Methane Trench Vent
MV-5
11:36
>100
4.8
5.2
13.3
Passive Methane Trench Vent
MV-6
11:46
0
0
1
18.5
Passive Methane Trench Vent
MV-7
11:50
0
0
0.8
18.9
Passive Methane Trench Vent
MV-8
11:54
0
0
4.3
14.1
Passive Methane Trench Vent
MV-9
11:58
0
0
0.7
19.1
Passive Methane Trench Vent
Certification
To the best of my knowledge, the information reported, and statements made on this data submittal and
attachments are true and correct. I am aware that there are significant penalties for making any false
statement, representation, or certifi tion including the possibility of a fine and imprisonment.
SIGNATURE TITLE

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q7urce: Esri, Di:gital_Globe, GeoE a arths4ar Geographies, CNE /Airbus DS, USD'
and the GIS User Community •
REFERENCES
1. PROPERTYLINES, MONITORING WELLS, AND STREAMS FROM
MECKLENBURG COUNTYGIS DEPARTMENT.
2. FROM DRAWING"GROUNDWATER MONITORING WELL AND
BORING LOCATION MAP" DATED MARCH 2O10, SHEET S2 OF 19,
PREPARED BYBP BARBER.
3. FROM DRAWING "SITE MAP WITH WELL LOCATIONS' DATED
AUGUST2013, FIGURE 1. PREPARED BYENVIRO-PRO.
4. FLOOD ZONES SOURCED FROM NC ONE MAP GIS SERVICE.
0 75 150 225 300
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