HomeMy WebLinkAboutTe Velde 29-28HZ - Air Monitoring Program/Report - Kerr McGee - 7/31/2021 (2)
July 31, 2021
Kerr-McGee Oil & Gas Onshore LP
1099 18th Street
Denver, CO 80202
720-929-6000
Marty Ostholthoff - LGD and Planning Manger Nancy D. Chick
151 Grant Avenue Physical Science Researcher
P.O. Box 100 CDPHE
Firestone, CO 80520 4300 Cherry Creek Drive S.
Denver, CO 80246-1530
Mr. Taylor Robinson
Environmental Health Specialist
Mr. Jason Maxey
OGED Director and Local Government Designee
Oil & Gas Energy Department
1301 N. 17th Ave.
Greeley, CO 80631
Re: Air Monitoring Program: Te Velde 29-28HZ Pad and Production Facility
Weld County, Colorado
In accordance with CDPHE Regulation 7 VI.C.2.b, Kerr-McGee is submitting the Air Monitoring Report for
Production Rig Drilling and DUCs monitoring from June 1 through 30, 2021 for this location.
Kerr-McGee has contracted Montrose Air Quality Services, LLC (Montrose) to perform the air monitoring
at this location. Attached is the Air Monitoring Report prepared by Montrose Air Monitoring was conducted
in accordance with the Kerr-McGee Air Monitoring Program approved by CDPHE in a letter dated April 20,
2021. Results from 35 air samples from carbon desorption tubes and SUMMA® canisters are included in
this report. All results are below the health guidance values (HGVs) guidelines compiled by the Colorado
Department of Public Health and Environment (CDPHE).
The Air Monitoring Program establishes three (3) levels of investigation responses to ensure protection of
public health, safety, welfare, the environment, and wildlife resources. Sections 8 and 9 of the air
monitoring program detail these levels and responses. If a Level 3 event occurs, Kerr-McGee will notify
the CDPHE and local government with jurisdiction over this pad within 48 hours of receiving notification.
There were no readings from the continuous PID analyzers or analytical results above the Investigation
Levels.
If you have any questions, please contact Chad Schlichtemeier at Chad_Schlichtemeier@oxy.com.
AMBIENT MONITORING REPORT
TE VELDE 29-28HZ PAD
PRE-OPERATIONS AND DRILLING PHASE
KERR-MCGEE OIL & GAS ONSHORE LP
Prepared For:
Kerr-McGee Oil & Gas Onshore LP
1099 18th St #1800
Denver, Colorado 80202
Prepared By:
Montrose Air Quality Services, LLC
990 W. 43rd Avenue
Denver, Colorado 80211
Document Number: 017AA-008129-RT-23
Reporting Period: June 1 through June 30, 2021
Drilling Period: June 6 through June 23, 2021
DUCs Monitoring: June 24 – August 13, 2021
Report Date: July 31, 2021
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 4
Table of Contents
PROJECT OVERVIEW ............................................................................................................................... 5
Summary ...................................................................................................................................................... 5
Project Scope ............................................................................................................................................... 5
Contact Information .................................................................................................................................... 5
Well Pad Site Description............................................................................................................................ 5
Sampling Locations for Production Monitoring .......................................................................................... 6
Sampling Locations for DUCs Monitoring .................................................................................................. 7
Methodology ................................................................................................................................................ 9
Phase of Operation and Activities During Reporting Period .................................................................... 10
Summary of Down Time or Equipment Malfunction ................................................................................. 10
Summary of Investigations and Response .................................................................................................. 10
Discussion of Results ................................................................................................................................. 11
SUMMARY OF RESULTS ........................................................................................................................ 12
Figure 1 – Te Velde 29-28HZ Southeast VOC Data.................................................................................. 12
Figure 2 – Te Velde 29-28HZ Southwest VOC Data ................................................................................. 13
Figure 3– Te Velde 29-28HZ West VOC Data .......................................................................................... 14
Figure 4 – Te Velde 29-28HZ East VOC Data .......................................................................................... 15
Table 1 – Te Velde VOC Data Analysis ..................................................................................................... 16
Figure 5 – Te Velde 29-28HZ Meteorological Data ................................................................................. 17
Table 2 –Passive Sampling Results ........................................................................................................... 18
Table 3 –Passive Sampling Results ........................................................................................................... 19
Table 4 –Summa Canister Results and Rig Activity................................................................................... 20
APPENDIX A: CALIBRATION AND QA/QC DATA
APPENDIX B: FIELD DATA SHEETS
APPENDIX C: CALIBRATION GAS CERTIFICATION SHEETS
APPENDIX D: API AND AIRS NUMBERS
APPENDIX E: OPERATIONS ACTIVITY
APPENDIX F: INVESTIGATION LEVEL EVENT DESCRIPTIONS
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 5
Project Overview
Summary
Montrose Air Quality Services, LLC (Montrose) was contracted by Kerr-McGee Oil & Gas
Onshore LP (Kerr-McGee) to conduct air monitoring at the Te Velde 29-28HZ Pad. This
report covers the reporting period from May 14 through June 30, 2021, during Pre-
Operations, Production Drilling, and the period between drilling and completions (DUCs).
Pre-Operations monitoring began on May 14 through June 5, 2021. Production Drilling
monitoring occurred from June 6, 2021 to June 23, 2021. DUCs monitoring began on June
24, 2021. Air Monitoring was conducted in accordance with the Kerr-McGee Air
Monitoring Program approved by CDPHE in a letter dated April 20, 2021. All air samples
taken during the reporting period were well below the Health Guidance Values (HGVs)
compiled by the CDPHE. There were no readings from the continuous PID analyzers or
analytical results above the Investigation Levels.
Project Scope
Continuous monitoring for VOCs and passive sampling for benzene commenced on May
14, 2021. The PID analyzers (named “SPOD”) used around the Te Velde 29-28HZ facility
were manufactured by SENSIT. Each sensor is solar powered and transmits data to the
data platform via LTE cell technology. The data is 128-bit encrypted during transmission.
Four (4) sensors monitored for VOCs and one (1) for the meteorological parameters during
the reporting period. All sampling was performed by Montrose.
Contact Information
The contact information for each of the principal parties is summarized in the tables below:
Chad Schlichtemeier Austin Heitmann
Occidental Montrose Air Quality Services, LLC
1099 18th Street 990 West 43rd Ave
Denver, CO 80202 Denver, CO 80216
Phone: (720) 929-6867 Phone: (303) 670-0530
E-mail: Chad_Schlichtemeier@Oxy.com E-mail: AHeitmann@Montrose-Env.com
Well Pad Site Description
The Kerr-McGee Te Velde 29-28HZ well pad facility location.
Latitude Longitude
Te Velde 29-28HZ Pad 40.115633 -104.899865
Parent Well Code 1123051235068
Legal Description: NNW 28 2N 67W 6 PM
The API number of the wells and any associated facility or equipment AIRS numbers can
be found in Appendix D.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 6
Sampling Locations for Production Monitoring
Sampling locations are labeled by ID on the map below.
The GPS coordinates of the locations are listed in the following table.
Location
ID GPS Coordinates Distance from
Facilities (ft) Monitoring Technology
T9 40.11406, -104.89612 300 PID Analyzer, Carbon Sorbent
Tube
T10 40.114357, -104.899150 165 Carbon Sorbent Tube
T11 40.114366, -104.899656 165 Carbon Sorbent Tube
T12 40.114344, -104.900292 165 Carbon Sorbent Tube
T13 40.114051, -104.901119 300 PID Analyzer, Carbon Sorbent
Tube
T14 40.114928, -104.900937 120 Carbon Sorbent Tube
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 7
Location
ID GPS Coordinates Distance from
Facilities (ft) Monitoring Technology
T15 40.115652, -104.90023 120 Carbon Sorbent Tube
T16 40.116132, -104.900866 120 Carbon Sorbent Tube
T17 40.115577, -104.901473 250 PID Analyzer, Carbon Sorbent
Tube
T18 40.116727, -104.900294 165 Carbon Sorbent Tube
T19 40.116759, -104.899747 165 Carbon Sorbent Tube
T20 40.116704, -104.899125 165 Carbon Sorbent Tube
T21 40.115868, -104.897742 165 Carbon Sorbent Tube
T22 40.115564, -104.897744 165 Carbon Sorbent Tube
T23 40.115195, -104.897746 165 Carbon Sorbent Tube
T24 40.115504, -104.896630 300 PID Analyzer, Carbon Sorbent
Tube
Sampling Locations for DUCs Monitoring
Production drilling was completed on 6/23/21. In compliance with the monitoring plan
for DUCs all non-PID analyzer locations were removed and four (4) PID analyzers with
collocated carbon sorbent tubes were left in place as the map below describes. Sampling
locations are labeled by ID on the map below.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 8
The GPS coordinates of the locations are listed in the following table.
Location
ID GPS Coordinates Distance from
Facilities (ft) Monitoring Technology
T9 40.11406, -104.89612 300 PID Analyzer, Carbon Sorbent
Tube
T13 40.114051, -104.901119 300 PID Analyzer, Carbon Sorbent
Tube
T17 40.115577, -104.901473 250 PID Analyzer, Carbon Sorbent
Tube
T24 40.115504, -104.896630 300 PID Analyzer, Carbon Sorbent
Tube
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 9
Methodology
Continuous Monitoring
The monitoring on the perimeter of the well pad is being performed using PID VOC
analyzers. In the device sampling occurs by allowing the ambient air to passively enter the
devices exterior housing via small holes and pass over the surface of the sensor. Each
device used in this project is solar powered and transmits data via cellular.
A PID sensor contains a lamp that produces photons that carry enough energy to break
molecules into ions. The PID will only respond to molecules that have an ionization energy
at or below the energy of the lamp, the PID used on this project employs a 10.6 electron-
volt lamp. The produced ions then generate an electrical current that is measured as the
output of the detector. The PID used in this monitoring campaign is manufactured by
IonScience, a United Kingdom company. The sensor mitigates the traditional PID issue of
humidity bias, by installing a hydrophobic filter between the lamp and the ambient air.
Water molecules are deterred from entering the ion producing chamber and absorbing
radiation. The PID themselves are also heated slightly above ambient temperature to
improve stability of the detector.
All continuous monitoring equipment operation and maintenance procedures followed the
Quality Assurance Project Plan provided in the Kerr-McGee Air Monitoring Program.
Carbon Sorbent Tubes
For the passive sorbent tube sampling portion of this test program, EPA Method 325A/B
entitled “Volatile Organic Compounds from Fugitive and Area Sources” was followed for
both sampling and analysis methodology.
The study incorporated passive sampling for Benzene utilizing Carbopack X™ tubes. The
tube is a stainless steel net cylinder, with 100 mesh grid opening and 5.8 mm diameter,
packed with 530 ± 30 mg of activated charcoal with particle size 35-50 mesh. Volatile
organic compounds are trapped by adsorption. The tube is desorbed using a thermal
desorber and the extract is analyzed using GC/MS. Benzene concentrations are calculated
using the mass of each compound found, the validated Carbopack X™ uptake rates, time
sampled, and average field temperature.
Field-ready passive samplers were provided in a background-free cooler by Enthalpy
Analytical, LLC (Enthalpy) in Durham, North Carolina. Tubes are individually packaged
in individual sealed glass vials prevent protection against contamination. The cooler
included ice packs to keep the sampled tubes cool throughout the shipping process.
All Carbon Sorbent Tube field sampling followed the SOP provided in the Kerr-McGee
Air Monitoring Program.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 10
SUMMA® Canister
For the summa canister sampling portion of this test program, EPA Compendium Method
TO-15 entitled “Determination of Volatile Organic Compounds (VOCs) in Air Collected
in Specially Prepared Canisters and Analyzed by Gas Chromatography/Mass Spectrometry
(GC/MS)” (“Method TO-15”) was followed for both sampling and analysis methodology.
Entech Instruments Silonite™ CS1200E Passive Canister Samplers were used to collect
samples over each 24-hour period. The Entech canisters used were six-liter stainless
canisters lined with ultra-inert surface coatings. The canisters were cleaned and blanked
for use according to laboratory standard operating procedures.
The canister samples were shipped to the Enthalpy laboratory where the samples were
analyzed for benzene, toluene, ethylbenzene, and xylenes.
All SUMMA® canister field sampling followed the SOP provided in the Kerr-McGee Air
Monitoring Program.
Phase of Operation and Activities During Reporting Period
In Appendix E is the operational activity during the reporting period.
Summary of Down Time or Equipment Malfunction
The PID Analyzers data recovery, which includes equipment malfunctions, during the
reporting period are shown in the table below.
The post-monitoring bump test results for June on PID analyzer at location T17 was outside
the range set in the Quality Assurance Project Plan (QAPP). The procedures outlined in
the QAPP, which is part of the approved Kerr-McGee Air Monitoring Program, were
followed. A full three-point calibration was conducted on the unit and the analyzer was
thoroughly inspected. The equipment passed QA/QC checks and the bump test
demonstrated the units were still linear. The units seemed to have drifted more than is
typical over a one-month period, which is not unusual for monitors of this type. The
analyzer data is valid but data for the month of April for these analyzers may be biased
high. No correction was applied to the data.
Summary of Investigations and Response
The Kerr-McGee Air Monitoring Program establishes Investigation Levels for the
continuous monitors and analytical results. If an Investigation Level is triggered, the
monitoring program outlines an Investigation Level Response for each level.
Location ID T-9 T-13 T-17 T-24
Data
Recovery
(%)
99.8% 99.8% 99.8% 94.2%
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 11
During this reporting period, there were no continuous monitor readings or analytical
results that exceeded an Investigation Level.
Investigation event responses, if applicable, can be found in Appendix F.
Investigation Level 3: No notifications to CDPHE and the local government with
jurisdiction over the location of the operations within forty-eight (48) hours of responsive
action(s) taken as a result of recorded values in excess of the Investigation Level 3 were
required.
Discussion of Results
The 15-minute block averages for the PID VOC results for all Production sampling can be
found in Figures 1 through 4. The data distribution for the PID VOC results can be found
in Table 1.
All 14-day Passive Tube results for production drilling monitoring can be found in Tables
2 and 3. All 24-hour Summa Canister results for production drilling monitoring can be
found in Table 4. All data analysis All results in these tables are below the Health Guidance
Values (HGVs) provided in Section 11 of the HSE Air Monitoring Program.
Meteorological data for the reporting period can be found in the Figure 5.
Prepared by:
Austin Heitmann
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 12
Summary of Results
Figure 1 – Te Velde 29-28HZ Southeast VOC Data
The graph below is shown for the PID Analyzer installed on the Southeast side of Te Velde 29-28HZ pad (Location ID: T-9) and is
plotted with 15-minute averages.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 13
Figure 2 – Te Velde 29-28HZ Southwest VOC Data
The graph below is shown for the PID Analyzer installed on the Southwest side of Te Velde 29-28HZ pad (Location ID: T-13) and is
plotted with 15-minute averages.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 14
Figure 3– Te Velde 29-28HZ West VOC Data
The graph below is shown for the PID Analyzer installed on the West side of Te Velde 29-28HZ pad (Location ID: T-17) and is plotted
with 15-minute averages.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 15
Figure 4 – Te Velde 29-28HZ East VOC Data
The graph below is shown for the PID Analyzer installed on the East side of Te Velde 29-28HZ pad (Location ID: T-24) and is plotted
with 15-minute averages.
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 16
Table 1 – Te Velde VOC Data Analysis
The table below reports the data distribution for all PID Analyzers installed at the Te Velde
29-28HZ pad.
Location ID T-9 T-13 T-17 T-24
5th Percentile
Value (PPM) 0.12 0.03 0.03 0.01
25th
Percentile
Value (PPM)
0.17 0.08 0.08 0.09
50th
Percentile
Value (PPM)
0.2 0.11 0.19 0.17
75th
Percentile
Value (PPM)
0.29 0.16 0.31 0.29
95th
Percentile
Value (PPM)
0.39 0.29 0.48 0.46
Maximum
15-min
Average
(PPM)
0.51 0.48 0.67 1.01
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 17
Figure 5 – Te Velde 29-28HZ Meteorological Data
The wind rose below is shown for Te Velde 29-28HZ facility and is plotted with 15-minute
averages.
Te Velde 29-28HZ Wind Rose
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 18
Table 2 –Passive Sampling Results
The table below reports the results for all passive samplers and collocated PID analyzer
data averaged over the same time period the passive samplers were collected. Locations
IDs can be matched with their location on page 7.
Location
ID
Te Velde 29-28HZ
Passive
Sampler
Benzene (ppb)
Analyzer
VOC
(ppm) Start Date-Time End Date-Time
Acute:
HGV1 9 N/A N/A N/A
T9 0.137 0.25 5/14/2021-09:10 5/28/2021-09:32
T10 0.163 N/A 5/14/2021-09:15 5/28/2021-09:25
T11 0.145 N/A 5/14/2021-09:20 5/28/2021-09:22
T12 0.120 N/A 5/14/2021-09:25 5/28/2021-09:20
T13 0.162 0.11 5/14/2021-09:30 5/28/2021-09:19
T14 0.190 N/A 5/14/2021-09:35 5/28/2021-09:17
T15 0.175 N/A 5/14/2021-09:40 5/28/2021-09:15
T16 0.161 N/A 5/14/2021-09:35 5/28/2021-09:12
T17 0.167 0.15 5/14/2021-09:37 5/28/2021-09:10
T18 0.124 N/A 5/14/2021-09:40 5/28/2021-10:05
T19 0.121 N/A 5/14/2021-09:45 5/28/2021-10:00
T20 0.120 N/A 5/14/2021-09:50 5/28/2021-09:57
T21 0.122 N/A 5/14/2021-09:52 5/28/2021-09:55
T22 0.149 N/A 5/14/2021-09:54 5/28/2021-09:50
T23 0.123 N/A 5/14/2021-09:57 5/28/2021-09:47
T24 0.124 0.14 5/14/2021-10:00 5/28/2021-09:45
1 Health Guidance Values
Te Velde 29-28HZ Wind Rose 5/14/21-5/28/21
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 19
Table 3 –Passive Sampling Results
The table below reports the results for all passive samplers and collocated PID analyzer
data averaged over the same time period the passive samplers were collected. Locations
IDs can be matched with their location on page 7.
Location
ID
Te Velde 29-28HZ
Passive
Sampler
Benzene (ppb)
Analyzer
VOC
(ppm) Start Date-Time End Date-Time
Acute:
HGV1 9 N/A N/A N/A
T9 0.0950 0.22 5/28/2021-09:10 6/10/2021-11:15
T10 0.128 N/A 5/28/2021-09:15 6/10/2021-09:22
T11 0.130 N/A 5/28/2021-09:17 6/10/2021-09:26
T12 0.115 N/A 5/28/2021-09:20 6/10/2021-09:25
T13 0.112 0.13 5/28/2021-09:22 6/10/2021-11:30
T14 0.135 N/A 5/28/2021-09:25 6/10/2021-09:28
T15 0.138 N/A 5/28/2021-09:07 6/10/2021-09:18
T16 0.161 N/A 5/28/2021-09:10 6/10/2021-09:59
T17 0.120 0.21 5/28/2021-09:11 6/10/2021-11:30
T18 0.343 N/A 5/28/2021-10:30 6/10/2021-09:47
T19 0.263 N/A 5/28/2021-10:35 6/10/2021-09:42
T20 0.174 N/A 5/28/2021-10:40 6/10/2021-09:46
T21 0.173 N/A 5/28/2021-09:30 6/10/2021-09:36
T22 0.173 N/A 5/28/2021-09:35 6/10/2021-09:35
T23 0.137 N/A 5/28/2021-09:40 6/10/2021-09:31
T24 0.107 0.28 5/28/2021-09:45 6/10/2021-11:00
1 Health Guidance Values
Te Velde 29-28HZ Wind Rose 5/28/21-6/10/21
Kerr-McGee Oil & Gas Onshore LP
Report ID: 017AA-008129-RT-23 Page 20
Table 4 –Summa Canister Results and Rig Activity
SUMMA® canisters were placed at the monitor locations during the sampling period.
The tables below report the completions activity and the results for the SUMMA®
canisters and collocated PID analyzer VOC data averaged over the same time period the
canisters were collected.
Te Velde 29-28HZ 6/16-17/2021 Production Rig Drilling – Drilling lateral section of well
Location
ID
Te Velde 29-28HZ
SUMMA® Canister Results (ppb) Analyzer
VOC
(ppm)
Start
Date-
Time
End
Date-
Time Benzene Toluene Ethylbenzene
m-/p-
Xylenes
o-
Xylene
Acute:
HGV1 9 2,000 5,000 2,000 N/A N/A N/A
T-9 0.234 0.609 0.121 0.442 0.172 0.31 6/16/21-
1014
6/17/21-
0919
T-13 0.172 0.338 <0.106 0.143 <0.107 0.33 6/16/21-
1001
6/17/21-
0904
T-172 N/A N/A N/A N/A N/A 0.54 6/16/21-
0957
6/17/21-
0907
T-24 0.191 0.415 <0.0977 0.268 0.102 0.32 6/16/21-
1009
6/17/21-
091
1 Health Guidance Values
2 Sample T-17 was received at the lab with a full vacuum still on the summa canister indicating no sample
was collected, either due to a malfunctioning canister sampler or some other field error. This resulted in a
“VOID” sample and was not analyzed.
Te Velde 29-28HZ Wind Rose 6/16/21-6/17/21
Appendix A: Calibration and QA/QC Data
Linearity
Check Bottle
Value (PPM)
Actual Linearity
Check Monitor
Response
Baseline Match
Adjustment
(PPM)
Mid
Response
Error
Zero Span Zero Span Offset Gain Mid Mid (PPM)Offset Mid (25%)#1 #2 #3 #4 #5 #6 #7 Zero Mid Span Zero Mid Span Mid (25%)
5/13/2021 0.00 4.80 54.85 232.21 -54.850 0.02706 3.02 2.70 0.00 10.6%2.70 2.70 2.70 2.70 2.70 2.69 2.69 0.005 0.015 6/10/21 3.03 3.34 10.2%Te Velde-W SPOD1069
5/13/2021 0.00 4.80 54.85 232.21 -54.850 0.02706 3.02 2.70 0.00 10.6%2.70 2.70 2.70 2.70 2.70 2.69 2.69 0.005 0.015 7/9/21 3.02 4.04 33.8%Te Velde-W SPOD1069
7/9/2021 0.00 4.84 66.44 283.44 -66.440 0.02230 3.02 3.07 0.15 1.7%3.09 3.10 3.11 3.11 3.12 3.11 3.11 0.010 0.029
Pad-Direction Unit ID
MET Direction
Check, if
applicable
(Pass/Fail)
7-Iteration Mid Concentration Reading
for DL Calculation (PPM)
Std
Deviation
(PPM)
Detection Limit
as 3*SD (PPM)
(<0.05 PPM)Date
Bottle Value
Pre-Monitoring Post-Monitoring
Date
Bottle Value
Pre-
Monitoring
(mV)New
Post-Monitoring
(TVOC (PPM))
Linearity
Check Bottle
Value (PPM)
Actual Linearity
Check Monitor
Response
Baseline Match
Adjustment
(PPM)
Mid Response
Error
Zero Span Zero Span Offset Gain Mid Mid (PPM)Offset Mid (25%)#1 #2 #3 #4 #5 #6 #7 Zero Mid Span Zero Mid Span Mid (25%)
5/13/2021 0.00 4.80 52.33 217.17 -52.330 0.02913 3.02000 2.51000 0.00 16.9%2.51 2.51 2.51 2.51 2.50 2.50 2.50 0.005 0.016 6/10/21 3.03 3.38 11.6%Te Velde-SE SPOD1065 Pass
5/13/2021 0.00 4.80 52.33 217.17 -52.330 0.02913 3.02000 2.51000 0.00 16.9%2.51 2.51 2.51 2.51 2.50 2.50 2.50 0.005 0.016 7/9/21 3.02 3.04 0.7%Te Velde-SE SPOD1065 Pass
5/13/2021 0.00 4.80 52.33 217.17 -52.330 0.02913 3.02000 2.51000 0.00 16.9%2.51 2.51 2.51 2.51 2.50 2.50 2.50 0.005 0.016
Pad-Direction Unit ID
MET Direction
Check, if applicable
(Pass/Fail)
7-Iteration Mid Concentration
Reading for DL Calculation (PPM)Std Deviation
(PPM)
Detection Limit
as 3*SD (PPM)
(<0.05 PPM)Date
Bottle Value
Pre-Monitoring Post-Monitoring
Date
Bottle Value
Pre-
Monitoring
(mV)New
Post-Monitoring
(TVOC (PPM))
Linearity Check
Bottle Value
(PPM)
Actual Linearity
Check Monitor
Response
Baseline Match
Adjustment
(PPM)
Mid Response
Error
Zero Span Zero Span Offset Gain Mid Mid (PPM)Offset Mid (25%)#1 #2 #3 #4 #5 #6 #7 Zero Mid Span Zero Mid Span Mid (25%)
5/13/2021 0.00 4.80 54.36 248.32 -54.360 0.02475 3.02000 2.40000 0.00 20.5%2.39 2.40 2.40 2.40 2.40 2.41 2.41 0.007 0.021 6/10/21 3.03 2.68 11.6%Te Velde-SW SPOD1114
5/13/2021 0.00 4.80 54.36 248.32 -54.360 0.02475 3.02000 2.40000 0.00 20.5%2.39 2.40 2.40 2.40 2.40 2.41 2.41 0.007 0.021 7/9/21 3.02 2.88 4.6%Te Velde-SW SPOD1114
5/13/2021 0.00 4.80 54.36 248.32 -54.360 0.02475 3.02000 2.40000 0.00 20.5%2.39 2.40 2.40 2.40 2.40 2.41 2.41 0.007 0.021
Pad-Direction Unit ID
MET Direction
Check, if applicable
(Pass/Fail)
7-Iteration Mid Concentration
Reading for DL Calculation (PPM)
Std Deviation
(PPM)
Detection Limit
as 3*SD (PPM)
(<0.05 PPM)Date
Bottle Value
Pre-Monitoring Post-Monitoring
Date
Bottle Value
Pre-
Monitoring
(mV)New
Post-Monitoring
(TVOC (PPM))
Linearity
Check Bottle
Value (PPM)
Actual Linearity
Check Monitor
Response
Baseline Match
Adjustment
(PPM)
Mid
Response
Error
Zero Span Zero Span Offset Gain Mid Mid (PPM)Offset Mid (25%)#1 #2 #3 #4 #5 #6 #7 Zero Mid Span Zero Mid Span Mid (25%)
5/13/21 0.00 4.80 55.44 179.17 -55.440 0.03882 3.00000 2.68000 0.00 10.7%2.66 2.66 2.66 2.68 2.68 2.68 2.67 0.010 0.030 6/10/21 3.03 3.54 16.8%Te Velde-E SPOD1060
6/9/21 0.00 4.84 57.48 260.95 -57.480 0.02379 3.02000 2.80000 0.00 7.3%2.80 2.80 2.80 2.80 2.80 2.80 2.80 0.000 0.000 7/9/21 3.02 2.88 4.6%Te Velde-E SPOD1083
6/9/21 0.00 4.84 57.48 260.95 -57.480 0.02379 3.02000 2.80000 0.00 7.3%2.80 2.80 2.80 2.80 2.80 2.80 2.80 0.000 0.000
Pad-Direction Unit ID
MET Direction
Check, if applicable
(Pass/Fail)
7-Iteration Mid Concentration Reading
for DL Calculation (PPM)
Std
Deviation
(PPM)
Detection Limit
as 3*SD (PPM)
(<0.05 PPM)Date
Bottle Value
Pre-Monitoring Post-Monitoring
Date
Bottle Value
Pre-
Monitoring
(mV)New
Post-Monitoring
(TVOC (PPM))
Appendix B: Field Data Sheets
Appendix C: Calibration Gas Certification Sheets
CERTIFICATE OF ANALYSIS
Grade of Product: CERTIFIED STANDARD-SPEC
Customer:MONTROSE ENVIRONMENTAL
Part Number:X02AI99C80A00F4 Reference Number:163-402092037-1
Cylinder Number:BLM003281 Cylinder Volume:84.6 CF
Laboratory:124 - Pasadena (SG06) - TX Cylinder Pressure:2214 PSIG
Analysis Date:May 07, 2021 Valve Outlet:590
Lot Number:163-402092037-1
Expiration Date:May 07, 2024
Product composition verified by direct comparison to calibration standards traceable to N.I.S.T. weights and/or N.I.S.T.
Gas Mixture reference materials.
ANALYTICAL RESULTS
Component Req Conc Actual Concentration Analytical
(Mole %)Uncertainty
ISOBUTYLENE 3.000 PPM 3.020 PPM +/- 5%
AIR Balance
Airgas Specialty Gases
Airgas USA, LLC
9810 BAY AREA BLVD
Pasadena, TX 77507
Airgas.com
Signature on file
Approved for Release Page 1 of 163-402092037-1
CERTIFICATE OF ANALYSIS
Grade of Product: CERTIFIED STANDARD-SPEC
Part Number:X02AI99C80A00F6 Reference Number:160-402092035-1
Cylinder Number:ET0027440 Cylinder Volume:84.6 CF
Laboratory:124 - Plumsteadville - PA Cylinder Pressure:2214 PSIG
Analysis Date:Apr 29, 2021 Valve Outlet:590
Lot Number:160-402092035-1
Expiration Date:Apr 29, 2024
Product composition verified by direct comparison to calibration standards traceable to N.I.S.T. weights and/or N.I.S.T.
Gas Mixture reference materials.
ANALYTICAL RESULTS
Component Req Conc Actual Concentration Analytical
(Mole %)Uncertainty
ISOBUTYLENE 5.000 PPM 4.840 PPM +/- 5%
AIR Balance
Airgas Specialty Gases
Airgas USA, LLC
6141 Easton Road
Bldg 2
Plumsteadville, PA 18949
Airgas.com
Signature on file
Approved for Release Page 1 of 160-402092035-1
Appendix D: API and AIRS Numbers
Well API# Latitude Longitude
TE VELDE 28-1HZ
TE VELDE 28-3HZ
TE VELDE 28-6HZ
TE VELDE 28-7HZ
TE VELDE 28-9HZ
40.1156330
40.1010002
40.1009922
10.1009886
40.1009841
-104.8998650
-104.9025407
-104.8994831
-104.8985069
-104.8965758
0512350689
0512350697
0512350696
0512350694
0512350693
Te Velde 29-28HZ Pad Production Facility AIRS number 123A0D8001 for
the permanent water tanks.
Appendix E: Operations Activity
Te Velde 29-28HZ Pad
Operational Activity
Date Activity
6/6 – 23/2021 Production Rig Drilling
6/24 – 30/2021 DUCs Monitoring
Appendix F: Investigation Level Event
Descriptions
No investigation level event occurred during this reporting period.
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