WS-10207_45352_CA_LSA_20220701_Limited Site Assessment Draft

CES Group Engineers, LLP
IMPROVING. PROTECTING. RESTORING.

CHARLOTTE, NC
Two Metropolitan Area Offices:
Denver, NC | Fort Mill, SC

COLUMBIA, SC

www.ces-group.net
July 1, 2022
Scott Ryals, PE Environmental Engineer North Carolina Department of Environmental Quality DWM UST Section 1637 Mail Service Center Raleigh, North Carolina 27699-1637 RE: Limited Site Assessment Creston Superette Incident No.: 45352 UST Facility ID No.: WS-10207
12295 NC Highway 88 West Creston, Ashe County, North Carolina 28615
Dear Mr. Ryals: CES Group Engineers, LLP (CES), while under contract with the North Carolina Department of
Environmental Quality (NCDEQ), Contract No.: N040722, executed on April 20, 2022, is submitting this Limited Site Assessment to you for the aforementioned property electronically via email. The performed work was authorized by NCDEQ Task Authorization (TA) #01, approved on May 4, 2022. Should you have any questions in regards to this submittal, please do not hesitate to contact me at [phone]. Regards,
Gregory Hans, PMP Environmental Division Manager
Enclosures: Limited Site Assessment
CES Project No. 7913.0522E 1 July 1, 2022
PHASE I LIMITED SITE ASSESSMENT REPORT
Creston Superette 12295 NC Highway 88 West
Creston, Ashe County, North Carolina 28615 NCDEQ Incident No.: 45352 UST Facility ID No.: WS-10207 July 1, 2022

Prepared for:
Mr. Scott Ryals NCDEQ DWM UST Section 1637 Mail Service Center Raleigh, North Carolina 27699-1637 Prepared by: CES Group Engineers, LLP
3525 Whitehall Park Drive, Suite 150 Charlotte, North Carolina 28273
CES Project No. 7913.0522E 2 July 1, 2022
TABLE OF CONTENTS
Page

1.0 SITE INFORMATION ................................................................................................. 4
1.1 Site Identification............................................................................................. 4 1.2 Contact Information ......................................................................................... 4 1.3 Release Information ........................................................................................ 4
1.4 Certification ..................................................................................................... 5
2.0 EXECUTIVE SUMMARY ............................................................................................ 6
3.0 SITE HISTORY AND CHARACTERIZATION ............................................................. 8
3.1 Responsible Party Information ........................................................................ 8 3.2 UST Information .............................................................................................. 8 3.3 AST Information .............................................................................................. 9 3.4 Release Description ........................................................................................ 9 3.5 Site Characteristics ......................................................................................... 9 3.6 Prior Actions ................................................................................................. 10
4.0 RISK CHARACTERIZATION .................................................................................... 12
4.1 Part I – Groundwater/Surface Water/Vapor Impacts ..................................... 12 4.2 Part II – Land Use ......................................................................................... 13
5.0 RECEPTOR INFORMATION .................................................................................... 15
5.1 Water Supply Wells ....................................................................................... 15 5.2 Public Water Supplies ................................................................................... 15 5.3 Surface Water ............................................................................................... 15 5.4 Wellhead Protection Areas ............................................................................ 16
5.5 Deep Aquifers in the Coastal Plain Physiographic Region ............................ 16 5.6 Subsurface Structures .................................................................................. 16
6.0 LAND USE ............................................................................................................... 17
6.1 Property Owners and Occupants .................................................................. 17 6.2 Sensitive Land Use Features ........................................................................ 17
7.0 SITE GEOLOGY AND HYDROGEOLOGY ............................................................... 18
8.0 SAMPLING RESULTS ............................................................................................. 19
8.1 Phase I Investigation ..................................................................................... 19
9.0 CONCLUSIONS AND RECOMMENDATIONS ......................................................... 21
9.1 Conclusions and Recommendations ................................................................... 21
10.0 REFERENCES ......................................................................................................... 22

CES Project No. 7913.0522E 3 July 1, 2022
FIGURES
FIGURE 1 SITE LOCATION MAP
FIGURE 2 SITE MAP
FIGURE 3 GROUNDWATER ELEVATION AND CONCENTRATION MAP
FIGURE 4 POTENTIAL RECEPTOR AND LAND USE MAP
TABLES
TABLE B-1 SITE HISTORY – UST/AST SYSTEM AND OTHER RELEASE INFORMATION
TABLE B-2 SITE HISTORY – UST/AST OWNER/OPERATOR AND OTHER RESPONSIBLE PARTY INFORMATION
TABLE B-3 SUMMARY OF SOIL ANALYTICAL RESULTS
TABLE B-4 GROUNDWATER ANALYTICAL RESULTS
TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION
TABLE B-6 CONTIGUOUS PROPERTY OWNERS/OCCUPANTS
TABLE B-7 MONITORING WELL CONSTRUCTION INFORMATION
TABLE B-9 CURRENT GROUNDWATER ELEVATIONS
TABLE B-10 LAND USE
APPENDICES
APPENDIX A HISTORICAL DATA
APPENDIX B SITE PHOTOGRAPHS
APPENDIX C MONITORING FIELD DATA SHEETS, SAMPLING PROTOCOLS, JOB
HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN
APPENDIX D SOIL AND GROUNDWATER LABORATORY REPORTS AND CHAIN-OF-CUSTODY RECORDS
APPENDIX E SOIL BORING LOG AND MONITORING WELL CONSTRUCTION / ABANDONMENT FORMS
CES Project No. 7913.0522E 4 July 1, 2022
1.0 SITE INFORMATION
1.1 Site Identification
 Date of Report: July 1, 2022 Site Risk/Ranking: Undetermined
 Facility I.D.: 00-0-0000023990 UST Incident Number (if known): WS-10207 /
45352
 Site Name: Creston Superette
 Street Address: 12295 NC Highway 88 West
 City/Town: Creston Zip Code: 28615 County: Ashe
 Description of Geographical Data Point (e.g., MW): Approximate UST Field
 Location Method (GPS, topographical map, online map, other): GIS Address Matching
 Latitude (decimal degrees): 36.447705 Longitude(decimal degrees): -81.606581

1.2 Contact Information
 UST/AST Owner: J. Gwyn Gambil, Inc (out of business) Email: N/A
Address: 681 Beaver Creek School Road, West Jefferson, NC 28694 Tel: [phone]
 UST/AST Operator: Not Applicable (USTs removed) Email:
Address: Tel:
 Property Owner: Earnest & Donna Osborne Email: N/A
Address: 2790 Big Laurel Lane, Creston, NC 28615 Tel: [phone]
 Property Occupant: Creston Superette Email: N/A
Address: 12295 NC Highway 88 West, Creston, NC 28615 Tel:
 Consultant/Contractor: CES Group Engineers, LLP. Email: [e-mail]
Address: 3525 Whitehall Park Drive, Ste150, Charlotte, NC 28273 Tel: [phone] x1008
 Analytical Laboratory: Waypoint Analytical State Certification No: 402
Address: 449 Springbrook Road, Charlotte, NC 28217 Tel: [phone]
 Drilling Contractor: Carolina Soil Investigations Email: [e-mail]
Address: 132 Gurney Road, Olin, NC 28660 Tel: [phone]
1.3 Release Information
 Date Discovered: 3/25/2000
 Estimated Quantity of Release: Unknown
 Cause of Release: Leak in system piping connections
 Source of Release (e.g., Dispenser/Piping/UST):
Dispenser Piping
 Sizes and Contents of Tanks or Other Containment from which the Release Occurred:
4,000-gal gasoline
USTs; (1) 3,000-gal
diesel UST

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1.4 Certification
I, Charles D. Heleine, a North Carolina Licensed Professional Engineer employed by CES,
do certify that the information contained in this report is accurate, to the best of my knowledge.
E-Signature 07/01/2022 Charles D. Heleine, NC PE No. 27196
CES Group Engineers, LLP (CES) is licensed to practice engineering in North Carolina. The firm license number is F-1240.
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2.0 EXECUTIVE SUMMARY
The purpose of this Phase I Limited Site Assessment (LSA) is to provide the information necessary for the North Carolina Department of Environmental Quality (NCDEQ) to evaluate the level of risk to human health and the environment resulting from the apparent release of petroleum-related constituents from a reported leak in fuel line connections from a removed underground storage tank (UST) system, located at the Creston Superette, 12295 NC Highway 88 West, Creston, Ashe County, North Carolina (hereafter identified as the site, subject site,
subject property or property). The site location, including topographic features, is depicted on Figure 1. CES Group Engineers, LLP (CES) has been authorized to perform groundwater monitoring activities by the North Carolina Department of Environmental Quality (NCDEQ),
represented by Scott Ryals, PE, Environmental Engineer. A Phase I LSA of the subject property was completed by CES to evaluate if contamination
identified during the closure of the UST system in March 2020 further impacted subsurface soils and groundwater at depths greater than 10-feet below grade in the area of the former fuel lines and dispensers, and if the potential exists for nearby water supply wells to be impacted by the
documented contamination. During closure of the UST system in March 2020 by WithersRavenel (WR), NCDEQ was notified of a release condition via the submittal of a UST-61 form that documented the collection of soil samples from beneath the removed fuel lines and dispensers, reporting concentrations of TPH-DRO and TPH-GRO above NCDEQ Action Levels. Upon discovery of soil contamination from the vicinity of the fuel lines and dispensers, over-excavation activities immediately commenced onsite, with a total of approximately 249.92-tons of soils exhibiting signs of petroleum contamination in the vicinity of the USTs, fuel lines and
dispensers subsequently being removed and transported offsite for disposal at a treatment facility. It was reported by WR that approximately 95.68-tons of soils exhibiting signs of petroleum contamination in the vicinity of the fuel lines and dispensers were over-excavated to a depth of
10-feet below grade, and included within the total amount of 249.92-tons that was ultimately transported offsite for treatment. Upon completion of over-excavation activities from the former fuel lines and dispensers, a total of 8 post-excavation soil samples were collected at a depth of approximately 10-feet below grade by WR, which reported concentrations of VOCs, sVOCs, and MassDEP VPH and EPH fractions above Soil-to-Water Maximum Soil Contaminant Concentrations (MSCCs). Based on over-excavation soil samples reporting concentrations above MSCCs in March 2020, on June 6, 2022, under the direction of CES, one (1) soil boring was installed in the area of the former fuel lines and dispensers, and was subsequently converted to a 2-inch temporary groundwater monitoring well to facilitate the collection of soil and groundwater samples for laboratory analysis.
Per the requirements of a Limited Site Assessment, the first sample (14-feet below grade) from native soils located below the previously over-excavated depth of approximately 10-feet below grade was collected in laboratory provided vials and glassware, stored on ice, and hand delivered
under chain-of-custody (COC) procedures on June 8, 2022 to Waypoint Analytical (Waypoint) of Charlotte, North Carolina (NC Certification No. 402) for laboratory analysis of VOCs by 8260, sVOCs by 8270, Metals (Pb & Cr) and VPH and EPH by MassDEP methodologies. Soil laboratory analytical results reported all concentrations of petroleum-related constituents below Soil to Water Maximum Contaminant Concentration, Residential Soil Cleanup Levels and
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Industrial/Commercial MSCCs from MW-1. However, total chromium was reported above NCDEQ Soil Standards, at a concentration level of 40.9 mg/kg.
Upon completion of the soil boring to a depth of approximately 18-feet below grade (due to subsurface refusal), and subsequent conversion to a 2-inch diameter temporary monitoring well,
depth to groundwater (DTW) measurements were recorded using a water level meter capable of detecting light non-aqueous phase liquid (LNAPL or Free Product) to an accuracy of 0.01 feet. Free product was not detected in temporary monitoring well MW-1. A DTW measurement from MW-1 was recorded at a depth of approximately 17-feet below grade. Groundwater samples were then collected from MW-1, placed on ice and submitted under COC procedures to Waypoint for analysis of VOCs by 6200B and 504.1, Aromatics by 602, Base/Neutrals by 625, Metals (Pb & Cr) and VPH and EPH by MassDEP methodologies. Groundwater laboratory analytical results reported all concentrations of petroleum-related constituents below NCDEQ 2L Standards from MW-1. However, total chromium was reported above the NCDEQ 2L Standard, at a concentration level of 217 ug/l.
Municipal water distribution systems provided by Ashe County are not available to serve the subject property and surrounding properties.
Based on prior actions completed at the site in March 2020, i.e. the excavation and removal of approximately 249.92-tons of soils exhibiting signs of petroleum contamination in the vicinity of
the USTs, fuel lines and dispensers, with subsequent soil and groundwater sampling from monitoring well MW-1 completed as part of the LSA (June 2022) reporting concentrations of petroleum-related constituents below applicable NCDEQ Soil and Groundwater Standards, and without the presence of an onsite, or nearby water supply well serving potable water to owners and occupants of the subject and surrounding properties, it is the opinion of CES that although residual petroleum-related constituents remain in-situ from the area of the former USTs, fuel lines and dispensers, soils and groundwater at depths greater than approximately 14-feet below grade have not been impacted, and therefore, it is recommended the site be considered Low-Risk, and no further actions relative to the reported release of petroleum are necessary at this time. Due to the presence of chromium reported above NCDEQ Soil and Groundwater Standards from
soil and groundwater samples collected from temporary monitoring well MW-1 on June 6, 2022, it is the recommendation of CES that sampling of the inactive onsite water supply well be conducted to evaluate the potential for chromium impacts. If chromium is present at a level above
applicable standards in the inactive onsite water supply well, it would be recommended that this water supply well be properly abandoned, and additional sampling and chromium analysis be conducted on a sample from the water supply well located approximately 815-feet to the east,
which currently services the onsite building. In the event that total chromium is detected in excess of applicable standards in either water supply well, it would be the recommendation of CES that further chromium speciation analysis be performed to evaluate the levels present of trivalent chromium and/or hexavalent chromium, with the presence of hexavalent chromium potentially requiring further action.
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3.0 SITE HISTORY AND CHARACTERIZATION
The subject site where this LSA was performed, where contaminated soil was discovered during the removal of an UST system in March 2020, which included two 4,000-gallon gasoline USTs, one 3,000-gallon diesel UST, associated fuel delivery lines and two dispensers, consists of one parcel, identified as Ashe County Parcel Identification (ID) Number 02110010, and is situated immediately south of NC Highway 88 West, as shown on Figure 1. The site is in a rural and residential area of Creston, Ashe County, North Carolina, with the North Fork New River bordering
the site to the south, and is situated in an area of mixed historical land use, including light commercial, residential, agricultural, open space and undeveloped, forested land purposes. Current use of the site includes the operation of a convenience store and deli (i.e., a Superette)
with rental apartments located on the second floor of the onsite building. Portions of the property to the north, west and east of the onsite building, contain asphalt and/or gravel areas. To the south of the onsite building are grassy areas leading toward the North Fork New River. Figure 2
depicts pertinent site features.
3.1 Responsible Party Information
UST Owner/Operator: J. Gwyn Gambil, Inc. (out of business) Address: 681 Beaver Creek School Road, West Jefferson, NC 28694 Phone: [phone] Other Person(s) Associated With USTs: (Site accepted into State-Lead Acceptance Program) Address: N/A Phone: N/A
Current Property Owner: Earnest & Donna Osborne Address: 2790 Big Laurel Lane, Creston, NC 28615 Phone: [phone] On March 13, 2022, the site was accepted into the NCDEQ State-Lead Acceptance Program to
conduct further investigative measures relative to Incident Number 45352. Additional responsible party information is provided in Table B-1 and Table B-2, and above in Section 1.2.
3.2 UST Information
The UST system removed in March 2020, included two 4,000-gallon gasoline USTs, one 3,000-gallon diesel UST, associated fuel delivery lines and two dispensers, and was owned and operated by J. Gwyn Gambill, Inc, which is reportedly, and currently out of business. According to reviewed information, the UST system last operated in 2015. A general summary of the UST system is presented below, with further information included in Tables B-1 and B-2:
UST ID No Current/Last Contents Capacity (gallons) Date Installed Date Removed Discovery of Release
1 Diesel 3,000 3/3/1977 3/24/2020 No 2 Gasoline 4,000 3/3/1977 3/24/2020 No 3 Gasoline 4,000 3/3/1977 3/24/2020 No
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The approximate and former location and orientation of the UST system is depicted on Figure 2.
3.3 AST Information
A total of 3 above ground storage tanks (ASTs) were identified onsite during this LSA, and are summarized below:

AST ID No Current/Last Contents Use Secondary Containment Location
1 Kerosene Retail sale of kerosene No Adjacent to NE building corner 2 Diesel Retail sale of diesel fuel Yes East of AST 1
3 Heating Oil Fuel source for apartments No Adjacent to S facing exterior wall of building
The approximate locations of the ASTs are depicted on Figure 2.
3.4 Release Description
As reported in the UST Closure Report, dated May 8, 2020, and prepared by WithersRavenel (WR), a release to subsurface soils, i.e., soil contamination, was encountered during the removal of the gasoline fuel lines and dispensers, and diesel fuel dispenser in March 2020, as evident by soil concentrations of TPH reported above NCDEQ Action Levels. No soil samples collected from near, or below the USTs exhibited TPH concentrations above NCDEQ Action Levels. On March 26, 2020, WR prepared and submitted a UST-61 form to NCDEQ, the Winston-Salem Regional Office, documenting the discovery of a petroleum release from the area of the former fuel lines and dispensers. The UST-61 form, prepared by WR, and included in the UST Closure Report, dated May 8, 2020,
is included in Appendix A. A full copy of the UST Closure Report can be viewed on the NCDEQ, edocs.deq.nc.gov, website.
3.5 Site Characteristics
The subject property is un-zoned land in Ashe County, and includes one parcel, with Ashe County Parcel Identification Number 02110010, occupying an area of approximately 1-acre. According to Ashe County GIS, the Highest and Best Use of the subject property has been identified as Secondary Comm/Ind Land. The adjoining property to the north of the site is Highway 88 West with farmland directly across the roadway. The adjoining property to the east of the site is cropland. The adjoining property to the south of the site is North Fork New River, with undeveloped, forested land across the river. The adjoining property to the west was observed to be occupied by a single-story structure that appears to be currently unoccupied. The subject property currently operates as Creston Superette, a small market / convenience store with deli, and distributes retail diesel and kerosene to the general public. The 2-story Creston Superette structure contains approximately 3,500-square feet, with an unknown year of
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construction. However, according to the Google Earth imagery, the existing building has been onsite since at least the year 1994. No further information relative to the onsite building was
readily available. Prior to the removal of the UST system in March 2020, it has been reported that the subject
property sold retail gasoline and diesel fuel since the year 1977 (year of UST installation). The UST system was centrally located in front of the onsite building, with a canopy over the fuel dispensers, and with the tank field located immediately to the west of the fuel dispensers. During the removal of the UST system, the canopy was removed to facilitate the removal of the tanks, and over-excavation activities. The Site is situated along the south line of NC Highway 88 West, a two (2)-lane, asphalt surfaced, urban section roadway. The subject site is served by electrical utilities, with the heating oil AST providing a source of heat for the onsite structure. Public water distribution and sanitary sewer services are not available to serve the site.
3.6 Prior Actions
Prior to the removal of the UST system in March 2020, applicable permits were filed with the NCDEQ Winston-Salem Regional Office (GW/UST-3) by WR, and permission was received from
the Ashe County Fire Marshal by the tank removal contractor, Eastern Environmental Management. As the UST system was prepared for removal, a total of 2,701-gallons of remaining liquids were extracted from the USTs and fuel lines, each UST was purged of vapors and oxygen
levels were reduced, and oxygen (O2) and lower explosive limits (LEL) were measured under the supervision of the Ashe County Fire Marshal.
During the removal of the USTs, WR personnel were onsite to field screen encountered soils with a MiniRAE 3000 PID and collect soil samples for onsite analysis of TPH-DRO and TPH-GRO from a mobile laboratory with analytical technician, provided by RedLab, LLC (RedLab) of Wilmington, North Carolina. A summary of the onsite analysis of TPH-DRO and TPH-GRO by RedLab is summarized below:
• TPH-DRO and TPH-GRO was reported below NCDEQ Action Levels from soil samples collected from below the USTs; and
• TPH-DRO and TPH-GRO was reported above NCDEQ Action Levels from soil samples collected from the vicinity of the fuel lines and dispensers.
Upon discovery of soil contamination from the vicinity of the fuel lines and dispensers, over-excavation activities immediately commenced onsite, with a total of approximately 249.92-tons of soils exhibiting signs of petroleum contamination in the vicinity of the USTs, fuel lines and dispensers subsequently being removed and transported offsite for disposal at a treatment facility. It was reported by WR that approximately 95.68-tons of soils exhibiting signs of petroleum contamination in the vicinity of the fuel lines and dispensers were over-excavated to a depth of 10-feet below grade, and included within the total amount of 249.92-tons that was ultimately
transported offsite for treatment. No soils, other than those soils required to safely remove the 3 USTs were excavated and removed from the UST field. Upon completion of over-excavation activities from beneath the former fuel lines and dispensers, a total of 8 post-excavation soil samples that were collected at a depth of approximately 10-feet below grade, reported concentrations of VOCs, sVOCs, and MassDEP VPH and EPH fractions
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above Soil-to-Water Maximum Soil Contaminant Concentrations (MSCCs).
Applicable data tables and figures, prepared by WR and included in the UST Closure Report, dated May 8, 2020, are included in Appendix A.
A full copy of the UST Closure Report can be viewed on the NCDEQ, edocs.deq.nc.gov, website.

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4.0 RISK CHARACTERIZATION
4.1 Part I – Groundwater/Surface Water/Vapor Impacts
High Risk
1. Has the release contaminated any water supply well including any well used for non-drinking purposes ? NO Not to our knowledge. 2. Is a water supply well used for drinking water located within 1,000 feet of the source area of the release ? YES Municipal water distribution systems are not available to serve the subject property and surrounding properties. 3. Is a water supply well not used for drinking water (e.g., irrigation, washing cars, industrial
cooling water, filling swimming pools) located within 250 feet of the source area of the release ? YES
A water supply well is located on the subject property, adjacent to the northwest corner of the onsite building. According to the property owner, Earnest Osborne, this well is
currently inactive, with the lines to the building disconnected after a new water supply well to service the onsite building was drilled prior to the Osborne’s acquiring the subject property in 2019, and is located approximately 815-feet to the east. Mr. Osborne stated that this inactive water well may be utilized in the future for dust control of the gravel backfilled area in front of the onsite building. 4. Does groundwater within 500 feet of the source area of the release have the potential for use (there is no other source of water supply other than the groundwater) ? YES Municipal water distribution systems are not available to serve the subject property and
surrounding properties. 5. Do vapors from the release pose a threat of explosion because of accumulation of the
vapors in a confined space or pose any other serious threat to public health, public safety or the environment ? NO
Intermediate Risk 6. Are there any other factors that would cause the release to pose an imminent danger to public health, public safety, or the environment ? NO

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7. Is a surface water body located within 500 feet of the source area of the release ? YES The North Fork New River is located approximately 135-feet to the south of the source area at its nearest point
8. Is the source area of the release located within an approved or planned wellhead protection area as defined in 42 USC 300h-7(e) ? NO 9. Is the release located in the Coastal Plain physiographic region as designated on a map entitled “Geology of North Carolina” published by the Department in 1985 ? NO 10. Do the levels of groundwater contamination for any contaminant exceed the gross contamination levels (See Table 2.) established by the Department ? NO
4.2 Part II – Land Use
Property Containing Source Area of Release
1. Does the property contain one or more primary or secondary residences (permanent or temporary) ? YES Apartments on the second floor of the onsite building are occupied as primary residences. 2. Does the property contain a school, daycare center, hospital, playground, park, recreation area, church, nursing home, or other place of public assembly ? NO 3. Does the property contain a commercial (e.g., retail, warehouse, office/business space etc.) or industrial (e.g., manufacturing, utilities, industrial research and development, chemical/petroleum bulk storage, etc.) enterprise, an inactive commercial or industrial enterprise, or is the land undeveloped ?
YES The subject property operates as Creston Superette, a retail grocery store with deli.
4. Do children visit the property ? YES
Is access to the property reliably restricted consistent with its use (e.g., by fences, security personnel or both) ? NO
5. Do pavement, buildings, or other structures cap the contaminated soil ?
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NO
Currently, the area of the former dispenser island (ie, source area) has been backfilled with crushed stone to grade, but is considered an impervious surface due to compaction at grade level. According to the property owner, Earnest Osborne, future plans include
asphalt-paving activities in this area. If yes, what mechanisms are in place or can be put into place to ensure that the contaminated soil will remain capped in the foreseeable future ? Not Applicable. 6. What is the zoning status of the property ? Not Applicable According to the Ashe County Planning Department, land in Creston is un-zoned. 7. Is the use of the property likely to change in the next 20 years ? NO
Property Surrounding Source Area of Release
1. What is the distance from the source area of the release to the nearest primary or secondary residence (permanent or temporary) ? 400 Feet
Not including the occupied second floor apartments at the subject property. 2. What is the distance from the source area of the release to the nearest school, daycare center, hospital, playground, park, recreation area, church, nursing home or other place of public assembly ? Greater than 1,500-feet 3. What is the zoning status of properties in the surrounding area ? Not Applicable
According to the Ashe County Planning Department, land in Creston is un-zoned. 4. Briefly characterize the use and activities of the land in the surrounding area.
The site is generally located in an area of light commercial, residential, agricultural, open space and undeveloped, forested land uses. The site is bordered to the north by NC
Highway 88 West, a 2-lane asphalt-paved rural section roadway, with a steep grassy hill used for pasture land purposes located immediately across NC Highway 88 West. The site is bordered to the east by agricultural cropland. The site is bordered to the south by the North Fork New River. The site is bordered to the west by two (2) abandoned structures in disrepair.

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5.0 RECEPTOR INFORMATION
5.1 Water Supply Wells
As part of this LSA, a water supply well survey was conducted by interviewing the owners of the subject property, conducting a limited windshield survey (limited due to safety issues of stopping along NC Highway 88 West as a high-speed roadway) and sending out Request for
Water Supply Well Information forms to property owners located within a 1,500-feet radius of the subject property. According to information obtained from the subject property owner, nearby and surrounding property owners, and Ashe County, properties along NC Highway 88 West and surrounding areas are serviced by water supply wells or natural springs, as municipal water distribution systems are not available to serve the subject property and surrounding properties. On May 31, 2022, CES sent out Request for Water Supply Well Information forms to properties within a 1,500-feet radius of the subject property. Due to the presence of numerous parcels of undeveloped and/or forested land within the 1,500-feet radius, a total of 9 Water Supply Well Information forms were returned to CES, or information was otherwise
communicated to CES. Although a Water Supply Well Information form was not returned to CES from the adjoining property to the west of the site (Parcel ID No.: 02110009), per conversations with Donna Osborne, this property is served by a natural spring that is located
on the property across NC Highway 88 West, and does not have an onsite water supply well. Table B-5 summarizes public and private water supply well information.
5.2 Public Water Supplies
No public water supplies, except for the onsite old water supply well (non-community transient) that currently does not service the subject property, and the new water supply well located approximately 815-feet to the east that provides the source of water for the subject property, are known to exist with a 1,500-feet radius of the subject property. According to North Carolina Source Water Assessment Program (SWAP) website, the new water supply well associated with the subject property is not listed within the SWAP database. Municipal water distribution systems provided by Ashe County are not available to serve the subject property and surrounding properties.
5.3 Surface Water
According to the NC SWAP website, the North Fork New River, a Class C surface water body, is located approximately 135-feet to the south of the source area at its nearest point. Class
C surface waters are protected for uses such as aquatic life propagation, survival and maintenance of biological integrity (including fishing and fish), wildlife, secondary contact recreation, and agriculture. Secondary contact recreation means wading, boating, other uses
not involving human body contact with water, and activities involving human body contact with water, where such activities take place on an infrequent, unorganized, or incidental basis. Additional Class C surface waters located near the subject property include Big Laurel Creek, approximately 2,250-feet to the west, and Rich Hill Creek, approximately 2,100-feet to the north-northeast.
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5.4 Wellhead Protection Areas
According to the NC SWAP website, no wellhead protection areas are in Ashe County.
5.5 Deep Aquifers in the Coastal Plain Physiographic Region
Not Applicable to the subject site.
5.6 Subsurface Structures
Limited underground utilities (subsurface electrical lines) have been identified at the subject site, and therefore, the potential exists for soil contamination to be in contact with these underground utilities. However, based on the location of soil contamination encountered during the UST removal and over-excavation activities conducted In March 2020, and a review of NC 811 locating services markings for the electrical lines, remaining and residual contaminated soil is not expected to be in contact with underground utilities. Groundwater has been measured at approximately 17-feet below ground surface at the site. Because the underground utilities are expected to be at a substantially shallower depth than 17-feet below grade, the utility lines would not be considered receptors or conduits for ground water contaminant migration. Figure 4 depicts a 1,500-feet Potential Receptor Map.

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6.0 LAND USE
6.1 Property Owners and Occupants
Land use in the vicinity of the subject property can be characterized as light commercial, residential, agricultural, open space and undeveloped, forested land. Based on presumed groundwater flow direction to the south at the subject property and surrounding properties,
property owners and occupants within or contiguous to the area containing contamination and/or where the contamination may be expected to migrate were reviewed and summarized in Table B-6. However, based on presumed groundwater flow direction to the south from the site towards the North Fork New River, nearby and surrounding property owners and occupants are not expected to be impacted by the apparent release. Additionally, soil and groundwater samples collected from the source area at 14-feet below grade (soil) and 17-feet below grade (groundwater) reported petroleum-related constituents below applicable state standards. However, concentrations of total chromium in soil and groundwater were reported above applicable NCDEQ Soil and Groundwater Standards.
6.2 Sensitive Land Use Features
No sensitive land use features, such as schools, daycare centers, nursing homes, hospitals, playgrounds, churches, camps, or other places of assembly, have been identified within 1,500 feet of the source of the release. However, a farmland preservation property is located approximately 1,000-feet to the northeast of the site. Specific land use information for the
vicinity of the site is summarized in Table B-10, with aerial imagery depicting land use included on Figure 4.

CES Project No. 7913.0522E 18 July 1, 2022
7.0 SITE GEOLOGY AND HYDROGEOLOGY
According to the Geological Map of North Carolina (1985), the subject site is located within the Blue Ridge Physiographic Province, is underlain by the sedimentary and metamorphic rocks of the Blue Ridge Belt within the Blue Ridge, and within the biotite granitic gneiss formation. A
description of the underlaying Rock Unit Ybgg is pinkish gray to light gray, massive to well foliated, granitic to quartz monzonitic; and includes variably mylonitized orthogneiss and paragneiss, interlayered amphibolite, calc-silicate rock, and marble, and includes granites of Bryson City area; Straight Fork. According to the US Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey, soils at the subject property consist of Tusquitee loam (TsD), 8 to 15 percent slopes and are well-drained loam and very gravelly fine sandy loam. Encountered soils from temporary monitoring well MW-1 were generally classified as a grey to light brown and reddish dense clay, with weathered rock and stone impediments encountered at
approximately 12-feet below grade. According to a review of applicable USGS topographic mapping for the subject property and
onsite observations, it has been determined that natural surface drainage in the vicinity of the subject site is generally in a southerly direction, with a steep gradient from the properties directly across NC Highway 88 West towards the North Fork New River, which is located immediately to
the south of the subject property. While not always the case, groundwater flow direction typically follows the direction of surface water flow, and is, therefore, anticipated to flow southerly towards the North Fork New River. Man-made improvements may alter natural local drainage patterns to some degree. The data obtained and reported herein is representative of conditions only at the referenced boring and monitoring well location and is not necessarily indicative of conditions elsewhere on the subject property.

CES Project No. 7913.0522E 19 July 1, 2022
8.0 SAMPLING RESULTS
8.1 Phase I Investigation
On June 6, 2022, under the direction of a CES environmental scientist, one soil boring was installed at the northern extent of the previous over-excavation activities conducted in March 2020, to facilitate the completion of one 2-inch temporary groundwater well for groundwater
collection purposes, by a sub-contracted driller, Carolina Soil Investigations, LLC of Olin, North Carolina, via direct-push methods utilizing a track-mounted geoprobe rig, Model 7822DT. Based on a review of site conditions and documented backfilling of the previously over-excavated area with crushed stone, as reported in the UST Closure Report, dated May 8, 2020, and prepared by WithersRavenel of Cary, North Carolina, soil boring / temporary monitoring well MW-1 was installed immediately outside the backfilled crushed stone to avoid collapsing of subsurface materials while the boring was advanced, and then converted to a 2-inch temporary groundwater monitoring well. During direct-push drilling methods on June 6, 2022, the advancement of the soil boring was terminated at a depth of approximately 18-feet below grade due to drilling refusal from encountered stone, rock and ledge, and the boring was subsequently converted to the temporary 2-inch groundwater monitoring at depth.
Subsurface soils were primarily classified as dense grey clay from grade to approximately 6-feet below grade, light brown/reddish clay from approximately 6-feet to 9-feet below grade, and a
greyish/brown dense clay from approximately 9-feet to 18-feet below grade. At approximately 18-feet below grade, moist to wet dense clay was encountered. Figure 2, Site Plan, depicts the location of temporary monitoring well MW-1. A monitoring well construction log and drilling forms for the soil boring / temporary monitoring well are included as Table B-7 and Appendix E, respectively. Upon completion of groundwater sampling activities and prior to site departure on June 6, 2022, CSI abandoned temporary monitoring well MW-1 with the abandonment log included in Appendix E. During the advancement of the soil boring, the CES Environmental Scientist field screened encountered soils with a MiniRAE 2000 Photoionization Detector (PID), calibrated by Eastern Solutions LLC on June 2, 2022, for the presence of volatile organic compounds (VOCs), to facilitate the selection of one soil sample from each boring for subsequent laboratory analysis. PID measurements below the detection limit of 10 ppmv were identified as non-detect (ND). PID
measurements were not recorded above 10 ppmv from any of the screened soil samples from grade to approximately 18-feet below grade, and therefore have been identified as ND.
Per the requirements of a Limited Site Assessment, the first sample (14-feet below grade) from native soils located below the previously over-excavated depth of approximately 10-feet below grade was collected in laboratory provided vials and glassware, stored on ice, and hand delivered
under chain-of-custody (COC) procedures on June 8, 2022, to Waypoint Analytical (Waypoint) of Charlotte, North Carolina (NC Certification No. 402) for laboratory analysis of the following:
• VOCs by 8260 + MTBE/IPE
• sVOCS by 8270 BNA
• MassDEP VPH
• MassDEP EPH
• Metals: Pb + Cr It should be noted that native soils from the boring at a depth of approximately 10 to 13-feet were
CES Project No. 7913.0522E 20 July 1, 2022
not recovered, and therefore, the sample at a depth of approximately 14-feet below grade was collected for laboratory analysis.
Soil laboratory analytical results reported all concentrations of petroleum-related constituents below Soil to Water Maximum Contaminant Concentration, Residential Soil Cleanup Levels and
Industrial/Commercial MSCCs from MW-1. However, total chromium was reported above NCDEQ Soil Standards, at a concentration level of 40.9 mg/kg. A photographic log depicting the site and soil boring location is included in Appendix B. Figure 2 depicts the location of soil boring MW-1. Table B-3 summarizes soil laboratory analytical results. Soil laboratory analytical reports are included in Appendix D. Upon completion of the soil boring to a depth of approximately 18-feet below grade, and subsequent conversion to a 2-inch diameter monitoring well, depth-to-groundwater (DTW)
measurements were recorded using a water level meter capable of detecting light non-aqueous phase liquid (LNAPL) to an accuracy of 0.01 feet. LNAPL was not detected in temporary groundwater monitoring well MW-1. DTW measurement from MW-1 was recorded at a depth of
approximately 17-feet below grade. Due to the limited volume of groundwater present in temporary groundwater monitoring well MW-1, groundwater samples were immediately collected in laboratory provided vials and glassware via a 1.5-inch disposable bailer, stored on ice and hand
delivered under COC procedures on June 8, 2022, to Waypoint for laboratory analysis of the following:
• VOCs by SM 6200B ext + 5 oxy
• VOCs by 504.1 (EDB)
• Aromatics by 602
• Base/Neutrals and Acids by 625 BNA + TIC
• MassDEP VPH
• MassDEP EPH
• Metals: PB + Cr Groundwater laboratory analytical results reported all concentrations of petroleum-related
constituents below NCDEQ 2L Standards from MW-1. However, total chromium was reported above the NCDEQ 2L Standard, at a concentration level of 217 ug/l. Figure 3 depicts a Groundwater Elevation and Concentration Map. Tables B-4 and B-9 summarize groundwater analytical results and depth to groundwater measurements, respectively. Field data sheets for soil and groundwater sampling, along with CES’ standard operating procedures for soil and groundwater investigations, and the prepared and reviewed Job Hazard Analysis (JHA) and Emergency Management and Health & Safety Plan (HASP) are included in Appendix C. Groundwater analytical reports are included in Appendix D.
CES Project No. 7913.0522E 21 July 1, 2022
9.0 CONCLUSIONS AND RECOMMENDATIONS
9.1 Conclusions and Recommendations
Conclusions: A Phase I LSA of the subject property was completed by CES to evaluate if contamination
identified during the closure of the UST system in March 2020 further impacted subsurface soils and groundwater at depths greater than 10-feet below grade on the subject property. Subsequent findings indicated that a soil sample collected from a soil boring at the depth of approximately 14-feet below grade, from the vicinity of the former fuel lines and dispensers, reported concentrations of petroleum-related constituents below NCDEQ Soil Standards, and a groundwater sample collected from the conversion of the soil boring to temporary monitoring well MW-1 reported concentrations of petroleum-related constituents below NCDEQ 2L Standards. However, it should be noted that soil and groundwater concentrations of total chromium were reported above applicable NCDEQ Soil and Groundwater Standards.
Recommendations:
Based on prior actions completed at the site in March 2020, i.e. the excavation and removal of approximately 249.92-tons of soils exhibiting signs of petroleum contamination in the vicinity of
the USTs, fuel lines and dispensers, with subsequent soil and groundwater sampling from monitoring well MW-1 completed as part of the LSA (June 2022) reporting concentrations of petroleum-related constituents below applicable NCDEQ Soil and Groundwater Standards, and without the presence of an onsite, or nearby water supply well serving potable water to owners and occupants of the subject and surrounding properties, it is the opinion of CES that although residual petroleum-related constituents remain in-situ from the area of the former USTs, fuel lines and dispensers, soils and groundwater at depths greater than approximately 14-feet below grade have not been impacted. It is, therefore, recommended that the site be considered Low-Risk, and no further actions relative to the reported release of petroleum are necessary at this time. Due to the presence of chromium reported above NCDEQ Soil and Groundwater Standards from
soil and groundwater samples collected from temporary monitoring well MW-1 on June 6, 2022, it is the recommendation of CES that sampling of the inactive onsite water supply well be conducted to evaluate the potential for chromium impacts. If chromium is present in the inactive
onsite water supply well, it would be recommended that this water supply well be properly abandoned, and additional sampling of the water supply well located approximately 815-feet to the east, which currently services the onsite building, be conducted. In the event that total
chromium is detected in excess of applicable standards in either water supply well, it would be the recommendation of CES that further chromium speciation analysis be performed to evaluate the levels present of trivalent chromium and/or hexavalent chromium, with the presence of hexavalent chromium potentially requiring further action.

CES Project No. 7913.0522E 22 July 1, 2022
10.0 REFERENCES
WithersRavenel of Cary, North Carolina. UST Closure Report dated May 8, 2020.

FIGURES

USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National
Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global
Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S. Department of State Humanitarian
Information Unit; and NOAA National Centers for Environmental Information, U.S. Coastal Relief Model. Data refreshed August, 2021.Figure 1Site Location MapCreston Superette12295 NC Highway 88Creston, Ashe County, North CarolinaCES Project #: 7913.0522E
Drawn on: 06/21/2022
Drawn by: Dawn F. Crowell
Reviewed by: Greg Hans
Folder: U:\NC DEQ UST PROGRAMPROJECT\Creston Superette\
3525 Whitehall Park Drive
Suite 150
Charlotte, North Carolina 28273
T: [phone]
www.ces-group.net
¯
0 0.06 0.12 0.18 0.240.03
Miles
Site Location
DRAWN BY: BN
CHECKED BY: GH
PROJECT NUMBER:
7913.0522 ED
DRAWING TITLE:
SHEET NUMBER:
SEAL:
DATE:NO: DESCRIPTION:
DRAWING REVISIONSPROJECT DESCRIPTION:Site PlanCES GROUP ENGINEERS, LLP
NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net
DATE: 06/29/2022
SCALE : 1" = 10'
1 inch = ft.( IN FEET )10
DRAWN BY: BN
CHECKED BY: GH
PROJECT NUMBER:
7913.0522 ED
DRAWING TITLE:
SHEET NUMBER:
SEAL:
DATE:NO: DESCRIPTION:
DRAWING REVISIONSPROJECT DESCRIPTION:Groundwater Elevation and Concentration MapCES GROUP ENGINEERS, LLP
NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net
DATE: 07/01/2022
SCALE : 1" = 10'
1 inch = ft.( IN FEET )10
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0 0.03 0.06 0.09 0.120.01
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3525 Whitehall Park Drive
Suite 150
Charlotte, North Carolina 28273
T: 704-489-1500
www.ces-group.net
Figure 4Potential Receptor and Land Use Map1500-Feet of Creston Superette12295 NC Highway 88 WestCreston, Ashe County, North CarolinaCES Project # 7913-0522E
Drawn on: 06/30/2022
Drawn by: Dawn F. Crowell
Reviewed by: Greg Hans
Folder: U:\NC DEQ UST PROGRAM PROJECT\Creston Superette\0311400403303114004039

TABLES

Table B-1: Site History – UST/AST System and Other Release Information
Revision Date: 06/30/2022 Incident Number and Name: 45352; Creston Superette UST ID#: WS-10207
1 Kerosene Unknown 430 SW Steel 3.5 x 6 SW Steel Unknown Active No
2 Diesel Unknown 1,000 SW Steel 5.3 x 6 SW Steel Unknown Active No
3 Heating Oil Unknown 550 SW Steel 4.2 x 5.2 SW Steel Unknown Active No
Incident
Number
Material
Released Date of Release
45352 Petroleum Unknown
5.3 x 24 SW Steel 3/3/1977
Permanent
Closure
(March
2020)
Yes3PetroleumGasoline4,000 SW Steel
Yes
Description of
Associated Piping
and Pumps
Was release
associated with
the UST
System?
Description of
Associated Piping
and Pumps
Was release
associated with
the AST
System?
Status of USTDate Tank
Installed
SW Steel 3/3/1977
Permanent
Closure
(March
2020)
Date Tank
Installed
UST ID
Number
Petroleum 3,000 SW Steel 5.3 x 181Diesel
Tank Dimensions
(diameter x length)
Construction
Details
Capacity (in
gallons)
Previous
Contents
Current/Last
Contents
reported above NCDEQ Action Levels
AST ID
Number
Current/Last
Contents *
Previous
Contents *
Capacity (in
gallons)
Construction
Details **Tank Dimensions Status of AST
***
Description of Release
Presence of contaminated soils below the fuel lines and dispensers via soil staining observations and TPH
2 Petroleum Gasoline 4,000 SW Steel 5.3 x 24 SW Steel 3/3/1977
Permanent
Closure
(March
2020)
Yes
Page 1 of 2
Table B-2: Site History - UST/AST Owner/Operator and
Other Responsible Party Information
Revision Date: 06/30/2022 Incident Number and Name: 45352; Creston Superette
UST ID#: WS-10207
2
State Zip
NC 28694
State Zip
State Zip
Street Address
J. Gwyn Gambil, Inc 3/3/1977 to 0/00/2015
UST ID
Number
1
3
Facility ID Number
Name of Owner Dates of Operation
(mm/dd/yy to mm/dd/yy)
00-0-0000022990
City Telephone Number
West Jefferson 336-846-5401
681 Beaver Creek School Road
Name of Other Responsible Party Dates of Release(s)
(mm/dd/yy to mm/dd/yy)
Street Address
City Telephone Number
Incident
Number 45352
Street Address
City Telephone Number
Name of Operator Dates of Operation
(mm/dd/yy to mm/dd/yy)
Page 2 of 2
Table B-3: Summary of Soil Analytical Results
Revision Date: 6/30/2022 Incident Number and Name: Incident No. 45352; Creston Superette UST ID#: WS-10207
6010D 6010D 8260D 8260D MADEP-VPH MADEP-VPH
Sample ID Date Collected (m/dd/yy)
Source Area
(eg. Tank
Grave)
Sample Depth (feet BGS)
PID (ppmv)
MW-1 6/6/22 Dispenser
Area 14'0.0 40.9 10.7 0.005 0.002 5.99 1.88
3.8 270 24 0.085 540 31
1.32 400 930 156 1560 469
6.54 400 14000 1810 23300 7000
Feet BGS = feet below ground surface
mg/kg =milligrams per kilogram
ppmv: parts per million per volume as detected by MiniRAE2000 photoionization detector (PID)
BDL = Below Laboratory Detection Limit
NA = Not applicable
Highlighted Yellow / Bold = Values exceeding the applicable Soil Standards
Concentrations compared to Table - 1, Rev 10/5/2021, Site Checks, Tank Closure, and Initial Response and Abatement (same as current version of Table 1 - Assessment and Corrective Action for UST ReleasesC9-C10 AromaticsAnalytical Method (e.g., VOCs by 8260D) 
Contaminant of Concern (mg/kg) ChromiumLeadMTBESoil-to-Water Maximum Contaminant Concentration
(mg/kg)
Residential Soil Cleanup Levels (mg/kg)AcetoneIndustrial/Commercial MSCC (mg/kg)C9-C12 Aliphtics
Table B-4: Summary of Groundwater Analytical Results
Revision Date: 6/30/2022 Incident Number and Name: Incident No. 45352; Creston Superette UST ID#: WS-10207
6010D 6010D 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B
Sample ID Date
Collected
(m/dd/yy)
Incident Phase
MW-1 6/6/22 LSA 217 11 5.93 J 0.585 0.834 0.670 0.509 0.878 J 5.54 0.494 J 0.300 J 1.11 0.358 J 0.391 J 1.57 1.96 J
10 15 6000 1 70 70 600 4000 20 5 70 400 400 NA NA 500
10000 15000 6000000 5000 70000 70000 80000 4000000 20000 5000 26100 28500 24100 NA NA 50000
µg/l = Micrograms per Liter
GCL = Gross Contamination Level
BDL = Below Laboratory Detection Limit
NA = Not Applicable
J = Detected but below the Reporting Limit; therefore, result is an estimated concentration
Concentrations in BOLD and Highlighted reported above 2L Standards
No concentrations were reported above GCL Standards (June 6, 2022)
Constituents not listed above were reported BDLs
Laboratory analysis performed by Waypoint Analytical, Inc of Charlotte, NC (NC Certification No. 402)o-Xylenem,p-XyleneXylene (Total)Analytical Method (e.g., VOCs by
EPA 6200B) 
Contaminant of Concern (mg/kg)
ChromiumAcetoneBenzeneMethyl tert-butyl ether (MTBE)Methylene Chloriden-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene2L Standard (ug/L) (Effective 4/1/2022)
GCL (ug/L) (Table 2 - Revised
10/8/2020)Chloroformcis-1,2-DichloroetheneMethyl Ethyl Ketone (MEK)EthylbenzeneLead
Table B-5: Public and Private Water Supply Well and Other Receptor Information
Revision Date: 6/30/2022 Incident Number and Name: Incident No. 45352; Creston Superette UST ID#: WS-10207
Water Supply Well and Other Receptor Information
1 WSW Earnest & Donna Osborne Both 336-385-8750 12295 NC Highway 88 West,
Creston, NC
Former onsite WSW 36.44762 -81.60662 IA / NP 45 Down
2 PWS Earnest & Donna
Osborne Both 336-385-8750 Unassigned
Address
Services
onsite Bldg
36.44810
-81.60377 A / P 815 Cross
3 Other (Spring)Not Available (Deeded
to Address)Unknown Not Available 12019 NC Highway 88 West,
Creston, NC
Unknown 36.44834
-81.60171 A / P 1,410 Cross
4 WSW Tom Faulkner Unknown Not Available 12116 NC Highway 88 West,
Creston, NC
Unknown 36.44901
-81.60318 A / P 1,065 Cross / Up
5 WSW Sherry Ridgley Unknown Not Available
12130 NC
Highway 88 West,
Creston, NC
Unknown 36.44860
-81.60382 A / P 815 Cross / Up
6 WSW Marene Osborne Unknown Not Available
12210 NC
Highway 88 West,
Creston, NC
Unknown 36.44860
-81.60529 A / P 465 Cross / Up
7 Other (Spring)Guy Graybeal Unknown 336-385-6804 12410 NC Highway 88 West,
Creston, NC
Unknown 36.44716
-81.60866 A / P 675 Cross
8 WSW No Head, LLC Unknown Not Available 12442 NC Highway 88 West,
Creston, NC
Unknown 36.44694
-81.60907 A / P 830 Cross
9 WSW Dann Stansberry Unknown Not Available 12527 NC Highway 88 West,
Creston, NC
Unknown 36.44630 -81.61057 A / P 1,350 Cross
10 WSW Not Available Unknown Not Available 126 Wishing Waters Edge,
Creston, NC
Unknown 36.44377 -81.60731 A / P 1,390 Down
11 WSW James Wofford Unknown 919-796-7429 Unassigned Address Unknown 36.44459 -81.60608 A / P 1,035 Down
Additional Information for Water Supply Wells (and Other Receptors, if applicable)
Well # / ID (same as above)
Public Water:
Connected / Available / Not Available
Well Currently Used for:
Active / Inactive / Abandoned
Constructio
n Method and Well Type
Total Depth (ft BGS)
Screened Interval (x to y ft BGS)
ft BGS = Feet below ground surface
Private / Public / Semi-Public Casing Depth (ft BGS)
Distance from Source (ft)Street Address for Receptor
* Ex: WSW = Water Supply Well, SWB = Surface Water Body, Resvr = Reservoir, PWS = Public Water Supply, PW = Public Well, SW = Supply Well, WPA = Wellhead Protection Areas, RA = Recharge Areas (for
deep aquifers), Sub = Subsurface Structures, Con = Conduits, Other:
** The location and/or latitude/longitude (IN DECIMAL DEGREES) must be sufficiently accurate and precise to allow easy location of wells (or recovery if buried/paved/covered-over, lost, or otherwise damaged) and for the location / replication of sampling points for any other receptor. Coordinates of Well # 3-11 are estimated based on physical location of onsite structure
*** Status: A = Active or IA = Inactive *and* Use: P = Potable or NP = Non-Potable Use. (Describe further in Additional Information for Water Supply Wells table below.)
Up or Downgradient (if known)Well #Contact Name Source Status & Use ***Type *Owner/User/Both Contact Phone #
Receptor Description and Location
Details **
Latitude/ Longitude ** (decimal degrees)
Page 1 of 1
Table B-6: Contiguous Property Owners/Occupants
Revision Date: 6/30/2022 Incident Number and Name: 45352; Creston Superette UST ID#: WS-10207
Tax Parcel
Number / Map
ID
Owner / Occupant
Name
Address
(Physical)
Address
(Mailing)
2110010 (Subject
Property)Earnest Wayne Osborne
12295 NC HWY 88 W, Creston, NC
28615 2842 Big Laurel Road, Creston, NC 28615
2110272 Earnest Wayne Osborne No address listed 2842 Big Laurel Road, Creston, NC 28615
2110107 Phyllis O Hale (Et Al)No address listed
8052 NC Highway 93, Piney Creek, NC
28663
3114004031 Russell Hallman No address listed 201 Peaceful Ln, Thomasville, NC 27360
2110302 Cemetery No address listed Unknown
Table B-7: Monitoring and Remediation Well Construction Information
Revision Date: 06/30/2022 Incident Number and Name: Incident No. 45352; Creston Superette UST ID#: WS-10207
Well ID Date Installed
(m/dd/yy)
Date Water
Level
Measured (m/dd/yy)
Well Casing Diameter
(in.)
Well
Casing
Depth (ft.
BGS)
Screened
Interval
(x to y ft.
BGS)
Depth of Well (ft.
BGS)
Top of
Casing
Elevation* (ft.)
Depth to
Water from
Top of Casing (ft.)
Free
Product
Thickness
** (ft.)
Initial Groundwater Elevation* (ft.)
Latitude/
Longitude
(decimal degrees)***
MW-1 6/6/2022 6/6/2022 2 10 8 to 18 18 N/A 17.20 0.0 N/A 36.44770
-81.60655
ft BGS = feet below ground
*Reference Point for Elevation Measurements Sea Level
**If free product is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation - Depth to Water] + [free product thickness x 0.8581]
***The location must be sufficiently accurate and precise to allow easy recovery of lost or damaged wells.
Page 1 of 1
Table B-9: Groundwater Elevations and Free Product Thickness
Revision Date: 6/30/2022 Incident Number and Name: Incident No. 45352; Creston Superette UST ID#: WS-10207
Well ID #Top of Casing
Elevation (MSL)
Screened Interval
(top of screen, bottom
of screen)
Date Depth to Water*
Uncorrected (feet)
Free Product
Thickness (feet)
Depth to Water*
Corrected
for Free Product
Thickness(feet)
Groundwater Surface
Elevation (MSL)
MW-1 NA 10 - 18'6/6/2022 17.15 0 17.15 NA
Table B-10: Land Use
Revision Date: 6/30/2022 Incident Number and Name: 45352; Creston Superette UST ID#: WS-10207
Map ID Date Determined Land Use
Feature Location Distance and Direction
from Source Area
2110272 Earnest Wayne Osborne Farmland No address listed 150-ft East (Cross)
2110010 Earnest Wayne Osborne Commercial
12295 NC HWY 88 W,
Creston, NC 28615 Subject Property (Source)
2110107 Phyllis O Hale (Et Al)
Undeveloped /
Vacant No address listed 425-ft West (Cross)
2110005
Angela C. Colvard & Joseph
Richard Woods
Undeveloped /
Vacant
12449 NC HWY 88 W,
Creston, NC 28615 785-ft West (Cross)
2110268
Gerald Denny & Maureena E,
Dann Stansberry Residential
12527 NC HWY 88 W,
Creston, NC 28615 1,350-ft West (Cross)
2110344 Earnest Wayne Osborne Farmland No address listed 480-ft East (Cross)
2110281
Jason Brittain & Johnson
Penny
Residential /
Farmland No address listed 825-ft East (Cross)
2110213
Jason Brittain & Johnson
Penny Residential
12101 NC HWY 88 W,
Creston, NC 28615 935-ft East (Cross)
2110018 Julia Smith & Brett Christian Farmland No address listed 1,255-ft East (Cross)
2110017 Anne Jones Residential
12019 NC HWY 88 W,
Creston, NC 28615 1,410-ft East (Cross)
2110016 Margaret Keys
Undeveloped /
Vacant
2978 ED Little Road, Creston,
NC 28615 1,125-ft East (Cross)
2110216 Tony Setzer & Ann Sue Residential
2797 ED Little Road, Creston,
NC 28615 925-ft East (Cross)
3114004032 Russell Hallman Forested No address listed 470-ft Southeast (Cross/Down)
3114004031 Russell Hallman Forested No address listed 325-ft South (Down)
2110009 Phyllis O Hale (Et Al)Residential
12349 NC HWY 88 W,
Creston, NC 28615 285-ft West (Cross)
3114004025 William Jones Forested No address listed 1,425-ft Southwest (Cross)
3114004026 William Jones Forested No address listed 1,450-ft Southwest (Cross)
3114004027
Midland IRA Inc. FBO
Suzanne Knudsen Forested No address listed 1,460-ft Southwest (Cross)
3114004028 Michael Clark & Cynthia Clark Forested No address listed
1,255-ft South-Southwest
(Cross/Down)
3114004029 Narayan Kapil Forested No address listed
870-ft South-Southwest
(Cross/Down)
3114004030 Tom Tallman Forested No address listed 725-ft South (Down)
3114004033 Liddy Chen Forested No address listed 700-ft South (Down)
3114004034 Liddy Chen Forested No address listed 1,115-ft South (Down)
3114004035 James & Ann Wofford Forested No address listed 1,215-ft South (Down)
3114004039 George Dryden
Undeveloped /
Vacant
2531 ED Little Road, Creston,
NC, 28615 1,500-ft South (Down)
2110015
Robert Whitley & Jaclyn
Dryden Residential
2576 ED Little Road, Creston,
NC 28615 1,375-ft South (Down)
2110211 William Farmer Residential
2755 ED Little Road, Creston,
NC 28615 800-ft Southeast (Cross/Down)
2110004 Joan Barrett Residential
12478 NC HWY 88 W,
Creston, NC 28615 1,025-ft West (Cross)
2110006 No Head LLC Residential
12442 NC HWY 88 W,
Creston, NC 28615 830-ft West (Cross)
2110007 Guy & Patsy Graybeal Residential
12410 NC HWY 88 W,
Creston, NC 28615 675-ft West (Cross)
2110008 Melinda Winebarger Residential
12374 NC HWY 88 W,
Creston, NC 28615 450-ft West (Cross)
2110021 Gregory Lipford Forested No address listed 250-ft North (Up)
2110302 Cemetery Farmland No address listed 500-ft North (Up)
Table B-10: Land Use
Revision Date: 6/30/2022 Incident Number and Name: 45352; Creston Superette UST ID#: WS-10207
2110022 Lorene Osborne Residential
12210 NC HWY 88 W,
Creston, NC 28615
465-ft East-Northeast
(Cross/Up)
2110023 Derek Powell Residential
12184 NC HWY 88 W,
Creston, NC 28615
630-ft East-Northeast
(Cross/Up)
2110024 Jack Farmer Residential
12054 NC HWY 88 W,
Warrenville, NC 28693 1,260-East (Cross)
2110292 Thomas & Lorelei Faulkner Residential
12116 NC HWY 88 W,
Creston, NC 28615
1,065-ft East-Northeast
(Cross/Up)
2110280 Sherry Ridgely Residential
12130 NC HWY 88 W,
Creston, NC 28615
815-ft East-Northeast
(Cross/Up)
2110350 Thomas & Lorelei Faulkner Forested No address listed
1,150-ft North-Northeast
(Up/Cross)
3114004036 Joseph & Susan Redmond Residential
126 Wishing Waters Edge,
Creston, NC 28615 1,390-ft South (Down)
Distances calculated from approximate center of Parcels

APPENDIX A

HISTORICAL DATA

UST-61 24-Hour Release and UST Leak Reporting Form.
For Releases This form should be completed and submitted to the UST Section’s regional office following a known or suspected release from an underground storage tank (UST) system. This form is required to be submitted within 24 hours of discovery of a known or in NC suspected release

(DWM USE ONLY) Incident # Risk (H,I,L,U) Received On Received By Reported by (circle one): Phone, Fax or Report Region

Suspected Contamination? (Y/N) Y Confirmed GW Contamination? (Y/N) N Confirmed Soil Contamination ?(Y/N) Y Samples Taken?(Y/N) Y Free Product? (Y/N) N If Yes, State Greatest
Thickness NA

Facility ID Number 0-0-23990 Date Leak Discovered 3-25-2020 Comm/Non-Commercial? Comm Reg/Non-regulated?
INCIDENT DESCRIPTION
Incident Name: Creston Superette
Address: 12295 Hwy 88 West County: Ashe
City/Town: Creston Zip Code: 28640 Regional Office (circle one): Asheville, Mooresville, Fayetteville, Raleigh, Washington, Wilmington, Winston-Salem
Latitude (decimal degrees): 36.44771 Longitude (decimal degrees) : -81.60666 Obtained by:
・GPS
・Topographic map
・GIS Address matching
X Other
・Unknown
Describe location:
UST 10B Form
Briefly describe suspected or confirmed release: (including but not limited to: nature of release, date of release, amount
of release, amount of free product present and recovery efforts, initial responses conducted, impacts to receptors)
During removal of three fuel dispensers and the piping associated with the three USTs that were 
closed by removal, soil beneath the dispensers and piping exhibited high TPH‐GRO & TPH‐DRO 
concentrations.  Over‐excavation of these soil was conducted until confirmation samples were  
collected.  Petroleum contamination was also identified in soils that were above the three 
USTs.  Contaminated soils were transported off‐site to a permitted disposal facility. 

HOW RELEASE WAS DISCOVERED (Release Code)
(Check one)
・Release Detection Equipment or Methods
X During UST Closure/Removal
・Property Transfer
・Visual/Odor
・Water in Tank
・Water Supply Well Contamination
・Groundwater Contamination
・Surface Water Contamination
・Other (specify)
SOURCE OF CONTAMINATION
Source of Release Cause of Release Type of Release Product Type Released
(Check primary source) (Check primary cause) (Check one) (Check primary product type released)
・ Tank
・ Piping
X Dispenser
・ Submersible Turbine Pump
・ Delivery Problem
・ Spill Bucket
・Other
・ Unknown
Definitions presented on reverse
・ Spill
・ Overfill
・ Corrosion
・ Physical/Mechanical
Damage
・ Install Problem
・ Other
X Unknown
Definitions presented on reverse
X Petroleum
・ Non-Petroleum
・ Both
Location
(Check one)
X Facility
・Residence
・Other

X Gasoline/ Diesel/ ・ Diesel/Veg. Oil
Kerosene Blend
・ Heating Oil ・ Vegetable Oil 100%
・ Other Petroleum ・E10 – E20
Products ・E21 – E84
・ Metals ・E85 – E99
・ Other Inorganics ・Ethanol 100%
・ Other Organics ・E01 – E09
Ownership 1. Municipal 2. Military 3. Unknown 4. Private 5. Federal 6. County 7. State

Operation Type 1. Public Service 2. Agricultural 3. Residential 4. Education/Relig. 5. Industrial 6. Commercial 7. Mining
UST Form 61 (02/19) Page 1 of 2

IMPACT ON DRINKING WATER SUPPLIES
Water Supply Wells Affected? 1. Yes 2. No 3. Unknown
Number of Water Supply Wells Affected Unknown
Water Supply Wells Contaminated: (Include Users Names, Addresses and Phone Numbers. Attach additional sheet if necessary)
1. 2. 3.
UST SYSTEM OWNER
UST Owner/Company J. Gwyn Gambill, Inc.
Point of Contact James G. Gambill Address 681 Beaver Creek School Road
City
West Jefferson
State
NC
Zip Code
28694-7117
Telephone Number
336-846-5401
UST SYSTEM OPERATOR
UST Operator/Company Creston Superette Address 12295 Hwy 88 West
City
Creston
State
NC
Zip Code
28640
Telephone Number
336-385-3455
LANDOWNER AT LOCATION OF UST INCIDENT
Landowner Josephine Owens Address 1230 Little Laurel Road
City Creston State NC Zip Code 28615 Telephone Number 336-385-3455
Draw Sketch of Area (showing two major road intersections) or Attach Map

See attached
Person Reporting Incident: Brian Bellis, P.G. Company: WithersRavenel, Inc. Telephone Number: 919-730-7482
Title: Project Manager Address: 219 Station Road, Unit 101, Wilmington NC 28405 Date: March 26, 2020
UST Form 61 (02/19) Page 2 of 2

Definitions of Sources Tank: means the tank that stores the product and is part of the underground storage tank system Piping: means the piping and connectors running from the tank or submersible turbine pump to the dispenser or other end-use equipment (Vent, vapor recovery, or fill lines are excluded.) Dispenser: includes the dispenser and the equipment used to connect the dispenser to the piping (e.g., a release from a suction pump or from components located above the shear valve) Submersible Turbine Pump (STP) Area includes the submersible turbine pump head (typically located in the tank sump), the line leak detector, and the piping that connects the submersible turbine pump to the tank Delivery Problem: identifies releases that occurred during product delivery to the tank. (Typical causes associated with this source are spills and overfills.) Other: serves as the option to use when the release source is known but does not fit into one of the preceding categories (e.g., for releases from vent lines, vapor recovery lines, and fill lines) Unknown: identifies releases for which the source has not been determined
Definitions of Causes Spill: use this cause when a spill occurs (e.g., when the delivery hose is disconnected from the tank fill pipe or when the nozzle is removed from the dispenser) Overfill: use when an overfill occurs (e.g., overfills may occur from the fill pipe at the tank or when the nozzle fails to shut off at the dispenser) Physical or Mechanical Damage: use for all types of physical or mechanical damage, except corrosion (e.g., puncture of tank or piping, loose fittings, broken components, and components that have changed dimension) Corrosion: use when a metal tank, piping, or other component has a release due to corrosion (e.g., for steel, corrosion takes the form of rust) Installation Problem: use when the problem is determined to have occurred specifically because the UST system was not installed properly Other: use this option when the cause is known but does not fit into one of the preceding categories (e.g., putting regulated substances into monitoring wells) Unknown: use when the cause has not been determined

APPENDIX B

SITE PHOTOGRAPHS

Facing west with the former UST system located between the Creston Superette sign (right) and
onsite building (left)
Facing east with the former UST system located between the Creston Superette sign (left) and onsite building (right)

Adjoining property to the east of the Creston Superette

North Fork New River to the south of the Creston Superette

Adjoining property to the west of the Creston Superette
Location of soil boring / temporary groundwater monitoring well MW-1 with the NC Highway 88 West and the property to the north of the Creston Superette in the background

Additional view of soil boring / temporary monitoring well MW-1 located along the north side wall of the previously over-excavated area
View of onsite diesel AST and fuel dispenser located immediately east-northeast of the onsite building

View of onsite water supply well (not in use) located off the northwestern corner of the onsite building

APPENDIX C

MONITORING FIELD DATA SHEETS,
SAMPLING PROTOCOLS, JOB HAZARD
ANALYSIS, AND HEALTH & SAFETY
PLAN

Appendix C: Groundwater Monitoring Field Data
Completion Date: 06/6/2022 Incident Number and Name: Incident No. 45352; Creston Superette Facility ID No. WS-10207
Well ID
Sampling
Date
(m/dd/yy)
Well
Casing
Diameter
(in.)
Screened
Interval (x to y
ft. BGS)
Depth of
Well (ft. BGS)
Top of
Casing
Elevation
* (ft.)
Depth to
Water from
Top of
Casing (ft.)
Free Product
Thickness**
(ft.)
Groundwater
Elevation* (ft.)Sample Analysis
Number of
Sample
Containers
Proposed
Purged
Volume
(gal)
Actual
Purged
Volume
(gal)
Purge Comments MNA Parameters
MW-1 6/6/2022 2" 10 - 18'
18.2'
(Refusal)N/A 17.15 ND N/A
6200B + 504.1
(EDB) + Metals:
PB & Cr + 602 +
625 + VPH +
EPH + 6200B -
% Oxy
14 N/A N/A
No Bailings due to
limited volume of
groundwater in well
N/A
Creston Superette, NCDEQ Incident No.: 45352, Facility ID No.: WS-10207

1

ENVIRONMENTAL MANAGEMENT AND HEALTH AND SAFETY
PLAN

NCDEQ WS-10207_45352 Creston Superette
12295 NC Hwy 88 West
Creston, Ashe County, NC

CES PROJECT NUMBER: 7913.0522E

Prepared by:

CES GROUP ENGINEERS, LLP
3525 Whitehall Park Drive, Suite 150
Charlotte, NC 28273

May 11, 2022

i

TABLE OF CONTENTS

Page
1.0 INTRODUCTION 1
1.1 PURPOSE/OBJECTIVE 2
1.2 RESPONSIBILITIES FOR HEALTH AND SAFETY 3
1.3 SUBCONTRACTOR’S RESPONSIBILITY 3

2.0 ASSIGNMENT OF RESPONSIBILITY 4
2.1 SITE SAFETY OFFICER 4
2.2 PROJECT MANAGER(S) 5

3.0 BACKGROUND AND HAZARD EVALUATION 7
3.1 PROJECT DESCRIPTION 7
3.2 HAZARD EVALUATION 7
3.3 SAFETY DATA SHEETS (SDS) 8

4.0 AIR MONITORING 9
4.1 MONITORING EQUIPMENT 9
4.2 TYPES AND FREQUENCY OF MONITORING 10
4.2.1 Breathing Zone Monitoring 10
4.2.2 Explosive Gas Source Monitoring 10
4.2.3 Work Area Monitoring 10
4.2.4 Dust Monitoring 10
4.3 ACTION LEVELS 11

5.0 PERSONAL PROTECTIVE EQUIPMENT AND PROCEDURES 11
5.1 RESPIRATORY PROTECTION 11
5.2 PROTECTIVE CLOTHING 12
5.3 LEVELS OF PROTECTION 13
5.3.1 Modified Level D 13
5.3.2 Level D Protection 13
5.3.3 Level C Protection 14
5.3.4 Level B Protection 14

6.0 SITE CONTROL 15
6.1 REGULATED AREAS 15
6.2 ACCESS/SITE SECURITY 16
6.3 POSTING/BARRICADES 16

ii

Page
7.0 POLICIES 16
7.1 GENERAL WORK PRACTICES 16
7.2 HEAVY EQUIPMENT OPERATION 17
7.3 SANITATION 19

8.0 DECONTAMINATION 19
8.1 PERSONAL DECONTAMINATION 20
8.2 EQUIPMENT DECONTAMINATION 21

9.0 TRAINING 22
9.1 BASIC TRAINING 22
9.2 SITE-SPECIFIC TRAINING 22

10.0 HEALTH MONITORING 23
10.1 PHYSICAL EXAMINATION 23
10.2 HEAT STRESS 23
10.3 COLD STRESS 24
10.4 SELF MONITORING 26

11.0 SITE STANDARD OPERATING PROCEDURES 26
11.1 WORK PRACTICES 26
11.2 COMMUNICATION PROCEDURES 27

12.0 EMERGENCY PROCEDURES 28
12.1 GENERAL 28
12.2 RESPONSIBILITIES 29
12.3 EMERGENCY CONTACT LIST 30
12.4 PERSONNEL INJURY IN THE EXCLUSION ZONE 32
12.5 PERSONNEL INJURY IN THE SUPPORT ZONE 32
12.6 FIRE OR EXPLOSION 32
12.7 PERSONAL PROTECTIVE EQUIPMENT FAILURE 32
12.8 POLLUTANT DISCHARGES/SPILLS 32

APPENDIX A Safety Data Sheet (Benzene - Volatile Organic Compounds)

APPENDIX B Emergency Phone Numbers / Contact List

APPENDIX C Route to Hospital

1

ENVIRONMENTAL MANAGEMENT AND HEALTH AND SAFETY PLAN (EMP)

NCDEQ WS-10207_45352 Creston Superette
12295 NC Hwy 88 West
Creston, Ashe County, NC

1.0 INTRODUCTION

This Environmental Management and Health and Safety Plan (EMP), additionally referred to
as the ‘plan”, has been developed for CES Group Engineers, LLP (CES), for application to
work completed during Project NCDEQ WS-10207_45352, Creston Superette, located at
12295 NC Hwy 88 West, in Creston, Ashe County, North Carolina, under CES Project
Number: 7913.0522E. For the purpose of this plan, the term “project” references “NCDEQ
WS-10207_45352 Creston Superette”. Additionally, this plan should also be utilized for any
work completed at surrounding properties where contamination, or additional assessment
activities, may be located. For the purpose of this plan, the term “subsurface investigation”
will include, but is not limited to, geophysical investigations, drilling soil borings with
conversion to temporary monitoring wells, excavation and removal of encountered
underground storage tanks (USTs), and contaminated soils / groundwater, and additional
assessment and remediation activities, which may include hand-augering of soil borings,
installation of monitoring wells and/or remedial recovery wells, groundwater monitoring and
sampling, and injections. The term “subsurface investigation” may also be referred to as
“excavation” in this plan. The plan addresses health and safety procedures and information
relevant to environmental services being provided by CES personnel, and/or subcontracted
personnel. The health and safety portion of the plan provides procedures to minimize: (1)
the potential for accidents from physical hazards, and (2) the potential for exposure to
chemical contaminants during activities which disturb the subsurface materials in the event
that contamination of soil or groundwater by special wastes is encountered. The Project
Manager, assisted by the assigned Site Safety officer, will ensure that all on-site
subcontractor personnel, and site visitors, comply with the specified health and safety
requirements. At least one copy of this EMP will be maintained at the local office of CES, as
well as one copy will be maintained onsite by CES, and/or subcontracted personnel.

As part of CES’ safety program, a site-specific Job Hazard Analysis (JHA) form will be used,
in conjunction with this plan, which will also include the name, address, and telephone

2

number of the nearest hospital in relation to the project address where work is being
completed. CES personnel have been instructed to utilize 911 as the first call should an
accident, or issue, be apparent that warrants an immediate emergency response action. This
plan is intended for general use during subsurface investigation activities completed by CES
personnel, or CES subconsultants, and as a general reference for workers to review and
understand the potential environmental and health and safety conditions that may be present
under normal subsurface investigation conditions. Additionally, this plan should also be
utilized for any work completed at surrounding properties where subsurface investigation
activities are, or may be required.

Prior to initiating subsurface investigation activities, as those referenced above, CES
personnel (Project Manager(s), Site Safety Officer, and/or Field Crews) will complete Job
Hazard Analysis (JHA) and selected CES safety forms which detail job specifics, including
the sequence of basic job steps, potential incidents or hazards, and recommended
procedures to eliminate potential incidents or hazards.

1.1 PURPOSE / OBJECTIVE
The protection of workers and environmental safety and health are major concerns during
this project and cannot be understated. The objective of the EMP is to document procedures
and precautions to be implemented during the geophysical investigation and installation of
soil borings with conversion to temporary monitoring wells, groundwater monitoring and
sampling, and future site assessment, monitoring and/or remediation activities associated
with said borings, in order to provide for and promote safe working conditions at the site
during field activities, specifically at locations where contamination of soil and groundwater
has been documented and/or is expected to be encountered. The safety organization and
procedures have been established based on a previous analysis of potential hazards at the
site. Personal protection measures have been selected in response to these potential
hazards.

This EMP and HASP has also been developed based upon review of the requirements
described in the U.S. Environmental Protection Agency (USEPA) Standard Operating Safety
Guide and the U.S. Department of Labor OSHA standards 29 CFR Part 1910. Reasonable
precautions will be taken by the contractor’s representative and its subcontractors to provide
for and promote the safety and health of workers and the general public. Subcontractors will
be given copies and will be required to follow this EMP.

3

1.2 RESPONSIBILITIES FOR HEALTH AND SAFETY
All site activities which have the potential to expose personnel to site contamination or a
related injury are subject to this EMP. Personnel will be responsible for adherence to the
safety procedures during the performance of the work. In no case may work be performed
in a manner that conflicts with the intent of, or the inherent safety and environmental cautions
expressed in, these procedures. Following due warning(s), personnel who violate safety
procedures will be dismissed from the site, and may be terminated. In the event that
contamination is encountered during regular construction operations, personnel will be
exclusively employed in the affected area of the project site, who have been properly trained
in health and safety regulations associated with handling hazardous materials or special
wastes as specified in the training section (Section 9.0) of this EMP.

The requirements provided herein may be modified as the work progresses to accommodate
changing conditions, but a reduction or increase in the health and safety requirements will
not be made without prior approval by the assigned Site Safety Officer (SSO). The prevention
of adverse health effects and injuries to site workers is totally dependent on the contribution
of all project participants. Open communication among workers, supervisors, and
management concerning safety at the site is an essential element of this EMP.

1.3 SUBCONTRACTOR’S RESPONSIBILITY
The Subcontractor is solely responsible for the health, safety, and protection of their own on-
site personnel during the performance of the survey services work scope. The Subcontractor
will perform the work specified in the contract documents in accordance with the HEALTH
AND SAFETY REQUIREMENTS specified herein, and federal, OSHA, state, and local health
and safety regulations. It will be the responsibility of the Subcontractor to be familiar with the
required health and safety regulations in the performance of this work. The Subcontractor
will designate a Site Safety officer to implement and monitor activities related to this EMP.

Should any unforeseen or site-specific safety-related factor, hazard, or condition become
evident during the performance of the work, the Subcontractor will take immediate and
prudent action to establish and maintain safe working conditions and to safeguard site
personnel, the public, and the environment.

4

2.0 ASSIGNMENT OF RESPONSIBILITY
All site activities which have the potential to expose CES personnel to site contamination or
related injury are subject to this EMP. As previously discussed, all site personnel are
responsible for adherence to the safety procedures during performance of the work. Specific
oversight responsibilities are assigned to various personnel as discussed in the paragraphs
to follow.

2.1 SITE SAFETY OFFICER
The SSO will be assigned to monitor the daily activities to assure that all health and safety
procedures/policies are being followed by CES personnel. This includes communicating the
specific requirements to all personnel, including subcontractors, implementing the EMP,
conducting site inspections to monitor compliance with EMP as required, providing or
coordinating training as required, coordinating the medical monitoring program, coordinating
respirator fit tests as required, coordinating the acquisition, calibration and maintenance of
air monitoring equipment, respirators and other safety equipment, directing on-site health and
safety activities, and reporting safety related incidents or accidents to the Project Manager.

The SSO for CES is: Greg Hans, PMP
CES Group Engineers, LLP
3525 Whitehall Park Drive, Suite 150
Charlotte, NC 28273
704.325.5408 (direct)
617.828.9948 (mobile)

It should be noted that the SSO may and will delegate responsibilities to a representative of
CES, subconsultants and/or subcontractors working at the Site and offsite properties for any
and all tasks associated with additional subsurface investigation activities.

2.2 PROJECT MANAGER(S)
The project manager is ultimately responsible for ensuring that all project participants abide
by the requirements set forth in this plan. Any and all changes in the scope of health and
safety requirements or site characterization will be communicated from the Project Manager
and/or Environmental Scientist to the SSO.

5

Environmental Project Manager: Greg Hans, PMP
CES Group Engineers, LLP
3525 Whitehall Park Drive, Suite 150
Charlotte, NC 28273
704.325.5408 (direct)
617.828.9948 (mobile)

Environmental Scientist: Dawn Crowell, MELP
CES Group Engineers, LLP
3525 Whitehall Park Drive, Suite 150
Charlotte, NC 28273
980.222.0206 (direct)
551.333.4787 (mobile)

3.0 BACKGROUND AND HAZARD EVALUATION

3.1 PROJECT DESCRIPTION

This project involves a geophysical investigation, and the installation of soil borings with
conversion to temporary monitoring wells via mechanical drilling techniques, groundwater
sampling, and potential future assessment, monitoring and remediation of soil and
groundwater contaminants potentially encountered by said borings. Future activities at the
site may include, but are not limited to excavation and removal of encountered underground
storage tanks (USTs), and contaminated soils / groundwater, and additional assessment and
remediation activities, which may include hand-augering of soil borings, installation of
permanent monitoring wells and/or remedial recovery wells, groundwater monitoring, and
injections. During the completion of the aforementioned activities, heavy equipment and
machinery, such as drilling rigs, excavators, back-hoes, dump trucks, etc may be utilized and
present onsite.

3.2 HAZARD EVALUATION
Constant attention will be given to physical hazards encountered during work day activities,
particularly those activities associated near heavy equipment such as drilling, subsurface
excavations, and/or earthmoving equipment. An evaluation of the potential hazards

6

associated with site activities has been completed by reviewing the general construction
scope of work for each of the projects, to be performed by others. The following potential
exposure pathways have been identified:

· Dermal contact, inhalation and ingestion of contaminated soils and
groundwater
· Inhalation and ingestion of contaminated vapors and particles
· Ingestion of waste solids (accidental/poor hygiene)
· Dermal contact with waste solids

Given that subsurface investigation activities may occur in close proximity to ongoing or future
construction (ie, excavations) related activities that may disturb surficial and subsurface soils,
pipes, etc and the physical properties of the contaminants that may be present at these
locations, there is a potential respiratory hazard from contaminants such as petroleum related
compounds, and therefore a contact hazard from petroleum related compounds. A
respiratory hazard from dust and contaminated dust particles may also exist during nearby
drilling, excavation and removal activities.

It is recognized that site hazard evaluation is a dynamic and on-going process that changes
on a daily basis during progression of the work. However, significant deviation from the
prescribed site characterization will necessitate re-evaluation and possible EMP revision.
Communication from the SSO will initiate the re-evaluation process by the Project Manager.

3.3 SAFETY DATA SHEETS (SDS)
Consistent with 29 CFS 1910.1200, (Hazard Communication Standard) applicable Safety
Data Sheets (or equivalent) will be kept on-site, in each vehicle, and with the Project
Manager. All subcontractors must ensure that their employees are informed of their rights
and responsibilities under the OSHA Hazard Communication Standard. Subcontractors will
provide SDS sheets for items which they bring on the site, as applicable. Due to the presence
of VOCs, a SDS for Benzene (prepared by Marathon Petroleum Company, dated 5/14/2015),
as VOC concentrations may be encountered onsite, has been included as Appendix A. It
should be noted that the attached SDS is representative of potential chemicals and materials
that may be encountered in the field during subsurface investigation activities. Should these,
or any other chemicals or hazardous materials, actually be encountered by CES employees
while in the field, the hazards and exposures of these chemicals or hazardous materials will

7

be re-evaluated.

4.0 AIR MONITORING
The purpose of air monitoring during subsurface investigation activities is to identify and
quantify airborne contaminants to determine the level of protection needed. Should air
monitoring for airborne contaminants be necessary, air monitoring with direct reading
instruments will be conducted during all intrusive activities. Four categories of air monitoring
will be conducted as follows:
· Breathing Zone Monitoring
· Explosive Gas Source Monitoring
· Work Area Monitoring
· Dust Monitoring

Equipment to be used in conducting air monitoring activities, along with a description of the
type and frequency of monitoring and associated action levels are discussed in the
paragraphs to follow. It should be noted that the contractors working in active construction
zones, including but not limited to excavations, trenches, bore holes, etc should be
responsible for proper air monitoring of these areas. However, should CES feel the need to
perform additional air monitoring, the following procedures (as outlined in sections 4.0
through 6.0, and to an extent, sections 7.0 through 11.0) may be implemented.

4.1 MONITORING EQUIPMENT
If CES employees are working in, or near, active construction zones where the potential
exists for chemical hazards and exposures to be present, the breathing zones will be
monitored using a MiniRAE portable VOC monitor. These instruments use a photoionization
detector that is designed to measure trace quantities of VOCs with a parts-per-million (ppm)
sensitivity range. It does not detect methane. The survey instrument will be calibrated using
an appropriate standard according to manufacturer’s instructions. The VOC monitor will be
calibrated prior to each use if the instrument is used infrequently, or daily when in constant
use.

If the MiniRAE portable VOC monitor detects elevated levels of VOC concentrations (> 50
ppmv), in ambient air at the site, a Gastech 02 /explosion/H2S meter will be used to measure
oxygen concentrations, explosion potential, and hydrogen sulfide (H2S) concentration. The

8

instrument will be calibrated with methane and H2S according to the manufacturer’s
instructions.

Air monitoring equipment will be certified intrinsically safe and operated by personnel trained
in the use of the specific equipment provided.

4.2 TYPES AND FREQUENCY OF MONITORING
4.2.1 Breathing Zone Monitoring
The breathing zone of a representative employee suspected of greatest exposure for each
job category engaged in work with potentially hazardous substances will be monitored as
follows:

· For excavation operations, monitor the breathing zone of the
equipment operator and laborers with an OVM when the waste
material is initially exposed. The results of the monitoring, the
employee’s name, and the work activity will be recorded in the
daily log

4.2.2 Explosive Gas Source Monitoring
During all operations identified as having a fire/explosion hazard, a combustible gas meter
set to measure the lower explosive level (LEL) will be used to continuously monitor the top of
the trench or excavation.

4.2.3 Work Area Monitoring
Each work area associated with hazardous waste spills and/or contamination will be
monitored at least one time each day with an OVM to determine the concentration of
contaminants being released into the general area.

4.2.4 Dust Monitoring
Chemical exposure via inhalation will be mitigated through the evaluation of wind velocity,
and common sense. Personal protective equipment will be utilized as necessary (based on
specific action levels) to prevent chemical exposure in excess of the exposure limits.

When possible, personnel should be situated upwind of work activity when working at the
site. Excavated areas should be allowed to vent for one to two minutes prior to investigative

9

activities to allow any vapors, dusts, or gases to dissipate. Liquids and solids should never
be smelled to confirm the presence or absence of chemicals.

The SSO or CES representative will screen the site for dusty conditions to prevent inhalation
of chemicals in particulate form (e.g. residue on soil grains). If dusty conditions are observed,
all workers will wear appropriate respiratory protection designed for dusts. Extremely dusty
conditions may require dust suppression via water mist or spray prior to returning to work.

4.3 ACTION LEVELS
The action levels as prescribed by the National Institute for Occupational Safety and Health
(NIOSH) will be used to initiate protective actions including, but not limited to, use of personal
protective devices, shut down of specific work activities, and site evacuation. A current
volume of the NIOSH Pocket Guide (electronic version) to Chemical hazards will, or may be
utilized as an on-site referenced by the SSO.

5.0 PERSONAL PROTECTIVE EQUIPMENT AND PROCEDURES

5.1 RESPIRATORY PROTECTION
During excavation or construction activities in an area where special wastes are expected or
have been encountered, the use of respiratory protection equipment may be required.
Respiratory protection is of primary importance as inhalation is one of the major routes of
exposure to chemical toxicants. Respiratory protective devices include air purifying
respirators, air-line respirators, and self-contained breathing apparatus.

The following respiratory protection practices will be observed by all workers at the Site when
conditions warrant respiratory protection:

· The respiratory protection utilized on-site will be in accordance
with OSHA, 29 CFR 1910.134

· Only properly cleaned, maintained, NIOSH/MSHA-approved,
respirators will be used on-site (if required)

· Selection of respirators, as well as any decisions regarding
upgrading or downgrading of respiratory protection, will be

10

made by the SSO

· Air-purifying cartridges will be replaced on a regular basis (at
least once per day) as determined by the SSO

· No employee will be assigned to tasks requiring the use of
respirators if, based upon the most recent examination, a
physician determines that the employee will be unable to
function normally wearing a respirator or that the safety or
health of the employee or other employees will be
compromised by use of a respirator

· Persons required to wear full-face respirators must not have
beards or moustaches that interfere with proper respirator seal.
All personnel wearing full-face respirators or personnel working
in the exclusion zone will be required to be clean-shaven prior
to each day’s shift. This will be strictly enforced by the SSO

· All personnel required to use APRs must be properly fit tested
prior to engaging in field activities in accordance with OSHA
standards (29 CFR 1910.1025)

5.2 PROTECTIVE CLOTHING
To protect workers against dermal contact with contaminants, the following apparel must be
worn during site-specific work activities depending on the level of protection specified for
those activities (Section 5.3 of this EMP):

· Disposable Tyvek coveralls
· PVC-coated or equivalent coveralls for splash protection
· Nitrile gloves or equivalent
· Inner gloves - latex or vinyl
· Outer disposable boots
· Hard hat
· Chemical-resistant boots (Neoprene, PVC, or equivalent)

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· Hearing protection (as applicable)
· Steel-toed safety shoes
· Goggles or safety glasses will be worn at all times in the work area
· Sleeves taped to gloves and cuffs taped to boots
· Face shield attachments for use with hard hats
· Disposable, chemical-resistant outer boots

Upgrading or downgrading selected protective equipment will be the decision of the SSO
based on assessment of exposure potential during specific tasks.

5.3 LEVELS OF PROTECTION
The levels of protection to be utilized at the site, and the activities to which they apply, are
described in the following paragraphs. The SSO will select the appropriate level of PPE
based on air monitoring results.

5.3.1 Modified Level D
This is the minimum level of protective clothing to be worn at the site during subsurface
investigation activities. All workers, supervisors, and visitors will be required to don the
following clothing prior to entering the project site. Based on the anticipated activities to be
performed at the site, it is anticipated that Modified Level D will provide adequate protection
coverage.

· Work clothes
· Hard hat
· Safety shoes
· Visibility vest
· Work gloves (only as necessary)

5.3.2 Level D Protection
Level D protection includes chemical resistant gloves and will be used for site work whenever
contact with contaminated equipment or materials is possible. The following clothing will be
required for Level D:

· Disposable, chemical-resistant outer boots
· Coveralls (work uniform)
· Hard hat
· Eye protection (safety glasses, goggles, or face-shield)*

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· Safety shoes
· Nitrile gloves*
* Optional, as determined by SSO

Dust masks shall be used to reduce employee exposure to fugitive dust, an optional Level D
device. The absence of dusty conditions at the site will be justification for the SSO to permit
personnel to remove their masks.

5.3.3 Level C Protection
Level C will be used for site work when the inhalation and dermal contact hazard is elevated.
When conditions for Level C protection are appropriate, the following equipment will be
required:
· Tyvek coveralls/chemical-resistant protective coverall
· Gloves (inner latex gloves and outer nitrile gloves)
· Hard hat
· Safety shoes
· Full-face or half-face air purifying respirator with organic vapor
cartridge (or other proper type cartridge for the intended use,
as determined by the SSO)
· Chemical-resistant outer boots
· Tape gloves and boots to coveralls to prevent leakage
· Hearing protection (as determined by SSO)

5.3.4 Level B Protection
Level B will be used for site work when inhalation and dermal contact hazard are elevated to
the point that a positive pressure, supplied air source is needed.

· Saranex coveralls/chemical-resistant clothing
· Gloves (inner latex gloves and outer nitrile gloves)
· Hard hat
· Self-contained breathing apparatus (SCBA), or Supplied Air-
Line Respirator (SAR)
· Chemical-resistant safety boots
· Gloves and boots taped to prevent leakage

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6.0 SITE CONTROL

The purpose of site control is to minimize potential contamination of workers and to protect
the surrounding area from hazards found at the site. If the project site is not secured by
fencing or other suitable site control means and is not routinely patrolled by police or other
independent security personnel; certain procedures must be followed to ensure suitable site
control and limitation of access so that those persons who may be unaware of site conditions
are not exposed to hazards.

All excavations left open and unattended by site personnel will be appropriately barricaded
and visibly posted with “No Trespassing” or other appropriate signage. All heavy machinery
and equipment shall be locked or chained each evening upon completion of daily activities.
All potentially contaminated media, such as soil, will be covered with plastic prior to leaving
the site.

6.1 REGULATED AREAS
As appropriate to the task conducted, the site vicinity will be divided into three zones to allow
control of worker exposures. These zones are described as follows:

· Exclusion Zone. This zone includes the actual area of
contamination and localized work area where specific
investigative and/or construction equipment is operating. This
zone has the highest inhalation exposure potential, and/or
presents a high probability of skin contact with cutaneous
percutaneous - affecting chemicals. New exclusion zones
may exist during certain site-specific activities. This will be
defined by the SSO and access by individuals not necessary
to operation will be limited. (Level D is minimum).

· Contamination Reduction Zone. This zone includes the areas
immediately surrounding the Exclusion Zone. All personnel
and equipment leaving the Exclusion Zone shall be
decontaminated in this zone.

14

Support Zone. This zone covers all areas outside of the
Contamination Reduction Zone. Administrative activities are
conducted in the Support zone, as well as equipment supply
and first aid supply. It is essential that contamination be kept
out of this zone.

6.2 ACCESS/SITE SECURITY
Access to contaminated work areas (Exclusion and Contamination Reduction Zones) will be
regulated and limited to authorized persons. Such persons include the Contractor’s
employees, designated equipment operators, and designated union representatives, as
applicable. The SSO will enforce access limitations during work hours.

6.3 POSTING/BARRICADES
Warning signs will be posted and hung, as applicable, in readily visible locations in or near
contaminated work areas. Barricades or barricade tape will be utilized to prevent access to
various work areas as indicated above.

7.0 POLICIES

7.1 GENERAL WORK PRACTICES
General work practices to be employed on-site are as follows:

· At least one copy of this EMP will be available at the work site

· No food or beverages will be present or consumed in the
exclusion or contamination reduction zones. No tobacco
products will be present or used, and cosmetics will not be
applied in the exclusion or contamination reduction zones

· No matches or lighters are permitted in the exclusion or
contamination reduction zones

· During operations within an area of contamination, all
employees will be required to wash their hands and face before
eating, drinking, smoking, or applying cosmetics

15

· Field personnel must observe each other for signs of exposure.
Indications of adverse effects include, but are not limited to, the
following:
- Changes in complexion and skin
discoloration
- Changes in coordination
- Changes in demeanor
- Excessive salivation and
pupillary response
- Changes in speech pattern

Field personnel will be cautioned to inform the SSO of non-
visible effects of exposure such as the following:

- Headaches
- Dizziness
- Nausea
- Blurred vision
- Cramps
- Irritation of eyes, skin, or respiratory tract
·
7.2 HEAVY EQUIPMENT OPERATION
Extra attention should be paid to the following information regarding work around heavy
equipment (cranes, excavators, front end/backhoe loaders, drilling rigs, etc.).

· Use common sense

· Follow OSHA requirements found in 29 CFR 1910 and 29 CFR
1926

· Wear hard hats, hearing protection, and safety glasses at all
times (when not prohibited by the use of air purifying
respirators). Wear other protective gear as specified in the
Health and Safety Plan

16

· A closed cab or cage will be required for equipment used at the
site

· Pay attention at all times

· Maintain visual contact at all times

· Establish hand signal communication when verbal
communication is difficult. Select one person per work group
to be the one to give hand signals to equipment operators

· Be aware of footing at all times

· Be sure that all heavy equipment has a backup alarm

· Be sure that only qualified people operate heavy equipment

· Use chains, hoists, straps, and other equipment to safely move
heavy materials

· Use proper personal lifting techniques. (Use your legs, not your
back)

· Never walk directly in back of, or to the side of, heavy
equipment without the operator’s knowledge

· Never use a piece of equipment unless you are familiar with its
operation. This applies to heavy as well as light equipment (for
example, chain saws)

· Make sure all precautions have been taken before moving pipe
sections and other materials to be utilized during this project as
they are extremely heavy. Let the equipment, not your body,
do the moving

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· Be sure that no underground or overhead power lines, sewer
lines, gas lines, or telephone lines will present a hazard in the
work area

7.3 SANITATION
Onsite sanitation facilities (e.g., wash stations, etc.) may be provided for use by field
personnel assigned to the work if work activities involve the direct handling of contaminated
soils and groundwater.

8.0 DECONTAMINATION

The process of removing or neutralizing contaminants that have accumulated on personnel
and equipment is critical to personnel protection. Decontamination protects workers from
hazardous substances that may contaminate and eventually permeate the protective
clothing, respiratory equipment, tools, vehicles, and other equipment used on site.
Decontamination protects site personnel in the following ways: minimizing the transfer of
harmful materials into clean areas; preventing the mixing of incompatible chemicals; and
protecting the community by preventing uncontrolled transportation of contaminants from the
site.

General – Each time an employee enters the Contamination Reduction Zone from the
Exclusion Zone, he/she just make a thorough self-examination. Equipment must be removed
without exposure to the wearer. Hands and face must be scrubbed before eating or use of
tobacco or cosmetic products to avoid accidental ingestion of wastes. Footwear must be
changed prior to leaving the Contamination Reduction Zone to avoid “tracking” of
contaminants outside the area.

Clothing – The Contractor will provide all required protective clothing. Protective clothes will
be left in the change facility. No clothing (including boots) is to be worn or carried away from
the site. Soiled clothing is to be disposed of as appropriate.

Respirators – All required respirators will be provided and maintained by the Contractor and
will be cleaned daily. Cleaning and maintenance will be performed in accordance with the
appropriate OSHA standard (29 CFR 1910.134).

18

Packaging of Waste Items – All disposable clothing and other contaminated material will be
placed in containers for storage on-site. Personnel will make a conscious effort to minimize
the volume of contaminated materials. Legible and understandable precautionary labels will
be affixed prominently to containers of contaminated scrap, waste, debris, and clothing.
Containers will be disposed with other solids in an EPA-approved manner.

8.1 PERSONAL DECONTAMINATION
Minimum measures to be undertaken for decontamination are outlined below. These
measures are to be followed, as applicable, unless the SSO specifies that a higher level of
decontamination is warranted, and accordingly, sets forth upgraded decontamination
procedures.
MINIMUM MEASURES FOR DECONTAMINATION
STATION PROCEDURES
1. Equipment Drop 1. Deposit equipment used on site (tools, sampling
devices and containers, monitoring instruments, radios,
clipboards, etc.) on plastic drop cloths or in different
containers with plastic liners. During hot weather
operations, a cool down station may be set up within this
area.
2. Outer Garment, Boots and
Gloves Wash and Rinse
2. Scrub outer boots, outer gloves and fully encapsulating
suit with decon solution or detergent and water. Rinse off
using copious amounts of water.
3. Outer Boot and Glove
Removal
3. Remove outer boots and gloves. Deposit in container
with plastic liner.
4. Tank Change 4. If worker leaves Exclusion Zone to change air tanks,
this is the last step in the decontamination procedure.
Worker’s air tank is exchanged, new outer gloves and boot
covers donned, joints taped, and worker returns to duty.
5. Boot, Gloves and Outer
Garment Removal
5. Boots, fully-encapsulated suit, inner gloves removed
and deposited in separate containers lined with plastic.
6. SCBA Removal 6. SCBA backpack and facepiece is removed (avoid
touching face with fingers). SCBA deposited on plastic
sheets.
7. Field Wash 7. Hands and face are thoroughly washed. Shower as
soon as possible.

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EQUIPMENT NEEDED TO PERFORM MINIMUM DECONTAMINATION MEASURES

STATION EQUIPMENT
1 A. Various Size Containers
B. Plastic Liners
C. Plastic Drop Cloths
2 A. Container (20-30 Gallons)
B. Decon. Solution or Detergent Water
C. Rinse Water
D. 2-3 Long-Handled, Soft Bristled Scrub
Brushes
3 A. Container (20-30 Gallons)
B. Plastic Liners
C. Bench or Stools
4 A. Air Tanks or Masks and Cartridges,
depending Upon Level.
B. Tape
C. Boot Covers
D. Gloves
5 A. Containers (20-30 Gallons)
B. Plastic Liners
C. Bench or Stools
6 A. Plastic Sheets
B. Basin or Bucket
C. Soap and Towels
D. Bench or Stools

8.2 EQUIPMENT DECONTAMINATION
Any items taken into the Exclusion Zone will be assumed to be contaminated. In general,
vehicles, equipment, and materials brought into the Exclusion Zone will remain in the
Exclusion Zone until no longer necessary to the project.

20

All contaminated vehicles and equipment will be decontaminated before they are taken off-
site. The Contractor will provide and maintain the following facilities for equipment
decontamination:
- equipment decontamination pad
- contaminated water collection system
- high-pressure water or steam cleaners
- trisodium phosphate detergent
- wire brushes and scrapers

9.0 TRAINING
9.1 BASIC TRAINING
All employees who will perform work at the site must have completed environmental and
safety training as approved and/or provided by CES, the Owner, the Contractor, or if required,
by 3rd party General Contractor.

9.2 SITE-SPECIFIC TRAINING
Employees assigned to the site may, as needed, be given site-specific training and field
experience to include the following topics:
- Acute and chronic effects of the toxic chemicals found at the site
- Routes of potential exposure and field activities which could result in such
exposure
- Need for personal protection, types of protection, fit effectiveness and
limitations
- Medical surveillance program
- Work zones established at the site
- Prohibited activities in the Exclusion and Contamination Reduction Zones
- Engineering controls and safe work practices associated with each
employee’s work assignment, including dust control measures
- Personal and equipment decontamination procedures
- Emergency response procedures
- Basic operational safety, emphasizing hazards expected on-site
- Drum handling procedures
- Spill control
- Sampling procedures
- Site communication procedures

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10.0 HEALTH MONITORING

10.1 PHYSICAL EXAMINATION
The Contractor may require all of its field workers to pass a pre-employment medical
examination prior to working at the site. The examination shall include a complete medical
and occupational history, and an evaluation from the attending physician as to whether the
employee is qualified to work in areas where exposure to chemicals or physical stress is
possible, and is physically able to use protective equipment, including respirators.

10.2 HEAT STRESS
Subsurface investigation tasks, assignments, projects etc will, or may be conducted during
all four season, winter, spring, summer and fall. Accordingly, warm temperatures during
these time periods may put extra physical stress on the body. Long periods of exposure to
heat may cause illness, particularly if the employee is not accustomed to working in hot areas.
Also, heat builds up inside protective clothing, so there is a risk of heat stress even if outside
temperatures are moderate.

The signs, symptoms and treatment of heat stress are outlined below. All individuals
participating in work in the Exclusion Zone and Contamination Reduction Zones should be
monitored regularly for heat stress symptoms.

Heat Cramps

Symptoms: painful muscle spasms

Cause: profuse sweating and drinking large amounts of water

Treatment: provide liquids with electrolytes (sodium, potassium) like diluted
Gatorade

22

Heat Exhaustion

Symptoms: weakness, fatigue, dizziness; pale, cool, moist skin; heavy sweating;
Headache; nausea; and fainting

Cause: reduced blood volume resulting from dehydration from profuse
sweating and insufficient replacement of water and salts

Treatment: If worker is conscious, rest in cool place; replace water and electrolytes
lost in sweat; if unconscious, get medical help immediately. DO NOT
give liquids if person is unconscious
Heat Stroke

Symptoms: very dry, hot skin with red mottled or bluish appearance; confusion;
Convulsions; unconsciousness; rapidly rising temperature

Cause: body becomes overheated because the worker does not sweat.
Can be fatal.

Treatment: call for medical help immediately; move person to cool place;
remove PPE; use wet towels or water and fan to cool while waiting
for help.

10.4 COLD STRESS
Subsurface investigation tasks, assignments, projects etc will, or may be conducted during
all four season, winter, spring, summer and fall. Accordingly, cold temperatures during these
time periods may put extra physical stress on the body. Long periods of exposure to cold
may cause illness, particularly if the employee is not accustomed to working in cold areas.
Cold stress occurs by driving down the body’s skin temperature and eventually the body
temperature (core temperature).

The signs, symptoms and treatment of cold stress are outlined below. All individuals
participating in work in the Exclusion Zone and Contamination Reduction Zones should be
monitored regularly for cold stress symptoms.

23

Hypothermia:

Symptoms: shivering, reduced circulation, slow/weak pulse, slowed breathing, lack
of coordination, irritability, confusion, sleepy behavior
Cause: body heat is lost faster than it can be replaced and normal body
temperature drops below 95 degrees F

Treatment: move person to warm and dry area, remove wet clothes and replace
with dry clothes, layer with blankets, give warm sweetened liquids, if
unconscious, get medical help immediately. DO NOT give liquids if
person is unconscious

Frostbite

Symptoms: reddened skin, with development of gray/white patches, numbness,
firm or hard parts affected, blisters
Cause: freezing of skin and underlying tissues typically affecting extremities,
particularly the feet and hands

Treatment: move person to warm and dry area, remove wet clothes and replace
with dry clothes, layer with blankets, give warm sweetened liquids, if
unconscious, get medical help immediately. DO NOT give liquids if
person is unconscious. DO NOT rub affected area, DO NOT break
blisters, DO NOT try to directly warm the frostbite areas without
medical attention

Trench Foot

Symptoms: redness of skin, swelling, numbness, blisters

Cause: prolonged exposure to wet and cold temperatures, constantly wet and
cold feet, wet and cold feet lose heat 25x faster than dry feet

Treatment: call for medical help immediately; remove the shoes, boots, wet
socks, dry the feet

24

10.5 SELF MONITORING
While at the site, CES employees and sub-contractors will be required to monitor their own
health and that of their co-workers. Visual observations include:

- behavioral changes
- change in appetite
- coordination losses
- gum and lip discoloration
- increased salivation
- pupil dilation
- sensation losses
- skin rashes
- slurred speech

Any abnormalities or changes are to be reported to the physician and investigated
immediately. Such aspects could be symptoms of toxic exposure and must not be allowed to
persist without medical attention. In addition, all accidents and injuries, no matter how small,
are to be reported to the SSO and investigated.

11.0 SITE STANDARD OPERATING PROCEDURES

11.1 WORK PRACTICES
The need to exercise caution in the performance of specific work tasks is made more acute
due to weather conditions, restricted mobility, and reduced peripheral vision caused by the
protective gear itself, the need to maintain the integrity of the protective gear, and the
increased difficulty in communicating caused by respirators. Work at the site will be
conducted according to established procedures and guidelines for the safety and health of
all involved. Among the most important of these principles for working at the site are:

- In any unknown situation, always assume the worst conditions and plan
accordingly

- Establish and maintain communication

25

- Minimize contact with excavated or contaminated materials. Plan work
work areas, decontamination areas, and procedures to accomplish this.
Do not place equipment on drums or on the ground. Do not sit or stand
on drums or other materials

- Employ disposable items when possible to minimize risks during
decontamination and possible cross-contamination during
sampling/handling.
This will require a common-sense approach to potential risks and costs

- Smoking, eating, or drinking after entering the work zone and before
decontamination will not be allowed. Oral ingestion of contaminants from
your hands are a likely means of introduction of the toxic substances into the
body

- Avoid heat and other work stresses relating to wearing the protective gear.
Work breaks and proper tracking are planned to prevent stress-related
accidents or fatigue

- Maintain monitoring systems. Conditions can change quickly if sub-surface
areas of contamination are penetrated

- Be observant of not only your own immediate surroundings but also that of
others. It is a team effort to notice and warn of impending dangerous
situations. Extra precautions are necessary when working near heavy
equipment while utilizing personal protective gear, as vision, hearing, and
communication may be restricted by the protective gear

- Be aware that chemical contaminants may aggravate or worsen symptoms
of other illnesses or intoxication. Avoid use of alcohol and working when ill

11.2 COMMUNICATION PROCEDURES
Personnel in the Exclusion Zone shall remain within sight of other project personnel, and
should work in conjunction with another individual. Since it is not anticipated that the project
area will encompass a large area at any given time, radio communication will not be required.

26

The following standard hand signals will be used in the event that communication is required
amongst workers in and/or between the Exclusion Zone and Contamination Reduction Zone.

Hand gripping throat Out of air, cannot breathe

Grip partner’s wrist, or both Leave area immediately
Hands around partner’s waist

Rotating hands above the head Need assistance

Right hand thumb up OK, I’m all right, I understand

Right hand thumb down No, negative

12.0 EMERGENCY PROCEDURES

12.1 GENERAL
A comprehensive emergency response plan has been developed to handle all on-site
emergencies. A list of site conditions which might require implementation of the plan includes
but is not limited to:

- Fire or explosion on-site
- Serious employee injury
- Accumulation of combustible gases or vapors at concentrations greater than
background
- Oxygen concentration below 19.5%
- Unsafe working conditions, such as inclement weather or hazardous material
releases
- Major release of toxic materials for which appropriate PPE is not being worn
by workers

27

12.2 RESPONSIBILITIES
The emergency coordinator is the SSO (Greg Hans) or assigned CES representative working
onsite; the alternate or back-up is the Environmental Scientist (Dawn Crowell). The
emergency coordinator is responsible for:

- Assessing the situation and determining whether an emergency exists which
requires activating the plan
- Directing all efforts in the area, including evacuating personnel and minimizing
property loss
- Ensuring that outside emergency services such as fire departments, police,
ambulance, and hospitals are notified when necessary
- Directing the shut-down of site operations when necessary
- Notifying regulatory agencies as necessary

28

12.3 EMERGENCY CONTACT LIST

Emergency Contact Phone Number
Environmental PM: Greg Hans, PMP 617.828.9948 (M)
CES Group Engineers, LLP 704.325.5408 (D)

SSO (if assigned by Dawn Crowell, CES Group Engineers
And/or
by Env PM) Carolina Soil Investigations 704.539.5279
(Assigned CSI field crew chief)

Back-up PM Dawn Crowell 551.333.4787 (M)
CES Group Engineers, LLP 980.222.0206 (D)

Police: North Carolina Highway Patrol 911
West Jefferson Police Department 336.246.9410

Hospital: Johnson County Community Hospital 423.727.1100
1901 South Shady Street
Mountain City, TN 37683

Fire: Pond Mountain Fire Station 11-1 336.385.6090

Doctor: Johnson County Community Hospital 423.727.1100

Ambulance 911

NCDENR (Winston-Salem Region) 336.776.9800

Directions to the nearest hospital: Johnson County Community Hospital, 1901 South
Shady Street, Mountain City, TN 37683

Refer to Appendix C.

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12.4 PERSONNEL INJURY IN THE EXCLUSION ZONE
When there is an injury in the Exclusion Zone, a continuous horn blast will be sounded as an
emergency signal (as applicable). Upon the sounding of the emergency signal, all site
personnel shall assemble in the personnel decontamination area. Rescue personnel will
enter the Exclusion Zone (if required) to remove the injured person. The SSO, or CES
representative, will evaluate the nature of the injury and call for an ambulance (if needed),
and the affected person will be decontaminated to the extent possible prior to movement to
the Support Zone. The appropriate first aid will be administered. No persons shall re-enter
the Exclusion Zone until the cause of the injury or symptom is determined.

12.5 PERSONAL INJURY IN THE SUPPORT ZONE
Upon notification of an injury in the Support Zone, the SSO, or CES representative, will
assess the nature of the injury. If the injury or absence of the injured person does not affect
the performance of site personnel, operations may continue while appropriate first aid and
follow-up is initiated. If the injury increases the risk to others, the designated emergency
signal (continuous horn blast) shall be sounded, and all site personnel shall move to the
decontamination line for further instructions. Activities on-site will stop until the added risk is
removed or minimized.

12.6 FIRE OR EXPLOSION
Upon notification of a fire or explosion on-site, a continuous horn blast will be sounded, and
all site personnel will assemble at the decontamination area. The fire department must be
alerted and all personnel moved as soon as possible to a safe distance.

12.7 PERSONAL PROTECTIVE EQUIPMENT FAILURE
If any site worker experiences a failure or alteration of protective equipment which may alter
the protection factor, that person and his/her work partner must immediately leave the
Exclusion Zone. Re-entry shall not be permitted until the equipment has been appropriately
repaired or replaced.

12.8 POLLUTANT DISCHARGES/SPILLS
In the event of an unauthorized discharge of pollutants or contaminants into the soil, sewers, or
ambient air, the person first finding such an incident should immediately notify the Project
Manager and/or the SSO. The Project Manager and/or SSO will immediately notify Greg Hans
or Dawn Crowell and the Local Fire / Emergency Management agency (Creston Volunteer Fire
Department at 336.385.6500).
APPENDIX A
SAFETY DATA SHEETS
(BENZENE)

SAFETY DATA SHEET
SDS ID NO.:0156MAR019
Revision Date 05/14/2015
1. IDENTIFICATION
Product Name:Marathon Petroleum Benzene
Synonym:Benzene; Cyclohexatriene
Product Code:0156MAR019
Chemical Family:Petroleum Hydrocarbon
Recommended Use:Solvent. Chemical intermediate.
Restrictions on Use:All others.
SDS information:1-419-421-3070
Emergency Telephone:[phone]
2. HAZARD IDENTIFICATION
Classification
OSHA Regulatory Status
This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200)
Skin corrosion/irritation Category 2
Serious eye damage/eye irritation Category 2A
Germ cell mutagenicity Category 1B
Carcinogenicity Category 1A
Specific target organ toxicity (repeated exposure)Category 1
Aspiration toxicity Category 1
Acute aquatic toxicity Category 2
Hazards Not Otherwise Classified (HNOC)
Static accumulating flammable liquid
Label elements
EMERGENCY OVERVIEW
Manufacturer, Importer, or Responsible Party Name and Address:
MARATHON PETROLEUM COMPANY LP
539 South Main Street
Findlay, OH 45840
Flammable liquids Category 2
Danger
HIGHLY FLAMMABLE LIQUID AND VAPOR
May accumulate electrostatic charge and ignite or explode
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 1 of 10
May be fatal if swallowed and enters airways
Causes skin irritation
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
Precautionary Statements - Prevention
Obtain special instructions before use
Do not handle until all safety precautions have been read and understood
Keep away from heat/sparks/open flames/hot surfaces. - No smoking
Keep container tightly closed
Ground/bond container and receiving equipment
Use explosion-proof electrical/ventilating/lighting/equipment
Use only non-sparking tools.
Take precautionary measures against static discharge
Do not breathe dust/fume/gas/mist/vapors/spray
Do not eat, drink or smoke when using this product
Wash hands and any possibly exposed skin thoroughly after handling
Wear protective gloves/protective clothing/eye protection/face protection
Avoid release to the environment
Precautionary Statements - Response
IF exposed or concerned: Get medical attention
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
If eye irritation persists: Get medical attention
IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower
If skin irritation occurs: Get medical attention
Wash contaminated clothing before reuse
IF SWALLOWED: Immediately call a POISON CENTER or doctor
Do NOT induce vomiting
In case of fire: Use water spray, fog or regular foam for extinction
Precautionary Statements - Storage
Store in a well-ventilated place. Keep cool
Store locked up
Precautionary Statements - Disposal
Dispose of contents/container at an approved waste disposal plant
3. COMPOSITION/INFORMATION ON INGREDIENTS
Benzene is a six carbon aromatic petroleum hydrocarbon.
Composition Information:
Name CAS Number % Concentration
Benzene 71-43-2 99-100
All concentrations are percent by weight unless material is a gas. Gas concentrations are in percent by volume.
Causes serious eye irritation
May cause genetic defects
May cause cancer
Causes damage to organs (blood, blood-forming organs, immune system) through prolonged or repeated exposure
Toxic to aquatic life
Appearance Clear Liquid Physical State Liquid Odor Sweet , Distinct
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 2 of 10
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
4. FIRST AID MEASURES
First Aid Measures
General Advice:In case of accident or if you feel unwell, seek medical advice immediately (show directions
for use or safety data sheet if possible).
Inhalation:Remove to fresh air. If not breathing, institute rescue breathing. If breathing is difficult,
ensure airway is clear, give oxygen and continue to monitor. If heart has stopped,
immediately begin cardiopulmonary resuscitation (CPR). Keep affected person warm and at
rest. GET IMMEDIATE MEDICAL ATTENTION.
Skin Contact:Immediately wash exposed skin with plenty of soap and water while removing contaminated
clothing and shoes. May be absorbed through the skin in harmful amounts. Get medical
attention if irritation persists.
Place contaminated clothing in closed container until cleaned or discarded. If clothing is to
be laundered, inform the person performing the operation of contaminant's hazardous
properties. Destroy contaminated, non-chemical resistant footwear.
Eye Contact:Flush immediately with large amounts of water for at least 15 minutes. Eyelids should be
held away from the eyeball to ensure thorough rinsing. Gently remove contacts while
flushing. Get medical attention if irritation persists.
Ingestion:Do not induce vomiting because of danger of aspirating liquid into lungs, causing serious
damage and chemical pneumonitis. If spontaneous vomiting occurs, keep head below hips,
or if patient is lying down, turn body and head to side to prevent aspiration and monitor for
breathing difficulty. Never give anything by mouth to an unconscious person. Keep affected
person warm and at rest. GET IMMEDIATE MEDICAL ATTENTION.
Most important signs and symptoms, both short-term and delayed with overexposure
Adverse Effects:Overexposure to vapors may cause eye, skin and respiratory irritation. Headache,
drowsiness, dizziness, loss of coordination, disorientation and fatigue. Prolonged and
repeated contact may cause defatting and drying of the skin and may lead to irritation
and/or dermatitis. Prolonged or repeated exposure may cause adverse effects on blood,
blood-forming organs, and immune system.
Indication of any immediate medical attention and special treatment needed
Notes To Physician:INHALATION: This material (or a component) sensitizes the myocardium to the effects of
sympathomimetic amines. Epinephrine and other sympathomimetic drugs may initiate
cardiac arrhythmias in individuals exposed to this material. Administration of
sympathomimetic drugs should be avoided.
INGESTION: This material represents a significant aspiration and chemical pneumonitis
hazard. Induction of emesis is not recommended.
5. FIRE-FIGHTING MEASURES
Suitable extinguishing media
For small fires, Class B fire extinguishing media such as CO2, dry chemical, foam (AFFF/ATC) or water spray can be used. For
large fires, water spray, fog or foam (AFFF/ATC) can be used. Firefighting should be attempted only by those who are adequately
trained and equipped with proper protective equipment.
Unsuitable extinguishing media
Do not use straight water streams to avoid spreading fire.
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 3 of 10
Specific hazards arising from the chemical
This product has been determined to be a highly flammable liquid per the OSHA Hazard Communication Standard and should be
handled accordingly. Vapors may travel along the ground or be moved by ventilation and ignited by many sources such as pilot
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
lights, sparks, electric motors, static discharge, or other ignition sources at locations distant from material handling. Flashback can
occur along vapor trail. For additional fire related information, see NFPA 30 or the Emergency Response Guidebook 130.
Hazardous combustion products
Smoke, carbon monoxide, and other products of incomplete combustion.
Explosion data
Sensitivity to Mechanical Impact No.
Sensitivity to Static Discharge Yes.
Special protective equipment and precautions for firefighters
Firefighters should wear full protective clothing and positive-pressure self-contained breathing apparatus (SCBA) with a full
face-piece, as appropriate. Avoid using straight water streams. Water may be ineffective in extinguishing low flash point fires, but
can be used to cool exposed surfaces. Avoid excessive water spray application. Water spray and foam (AFFF/ATC) must be
applied carefully to avoid frothing and from as far a distance as possible. Keep run-off water out of sewers and water sources.
Additional firefighting tactics
FIRES INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or
monitor nozzles. Cool containers with flooding quantities of water until well after the fire is out. Do not direct water at source of leak
or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of
tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles: if this is
impossible, withdraw from area and let fire burn.
EVACUATION: Consider initial downwind evacuation for at least 1000 feet. If tank, rail car or tank truck is involved in a fire,
ISOLATE for 5280 feet (1 mile) in all directions; also, consider initial evacuation of 5280 feet (1 mile) in all directions.
6. ACCIDENTAL RELEASE MEASURES
Personal precautions:Keep public away. Isolate and evacuate area. Shut off source if safe to do so. Eliminate all
ignition sources.
Protective equipment:Use personal protection measures as recommended in Section 8.
Emergency procedures:Advise authorities and National Response Center (800-424-8802) if the product has
entered a water course or sewer. Notify local health and pollution control agencies, if
appropriate.
Environmental precautions:Avoid release to the environment. Avoid subsoil penetration.
Methods and materials for
containment:
Contain liquid with sand or soil.
Methods and materials for cleaning
up:
Use suitable absorbent materials such as vermiculite, sand, or clay to clean up residual
liquids. Recover and return free product to proper containers. When recovering free liquids
ensure all equipment is grounded and bonded. Use only non-sparking tools.
7. HANDLING AND STORAGE
Safe Handling Precautions:NEVER SIPHON THIS PRODUCT BY MOUTH. Static accumulating flammable liquid. Use
appropriate grounding and bonding practices. Bonding and grounding may be insufficient to
eliminate the hazard from static electricity. Do not expose to heat, open flames, strong
oxidizers or other sources of ignition. Use only non-sparking tools. Do not cut, drill, grind or
weld on empty containers since explosive residues may remain. Avoid contact with skin,
eyes and clothing. Avoid breathing vapors or mists. Use only with adequate ventilation.
Use personal protection measures as recommended in Section 8. Exercise good personal
hygiene including removal of soiled clothing and prompt washing with soap and water.
Comply with all applicable EPA, OSHA, NFPA and consistent state and local requirements.
NFPA Health 2 Flammability 3 Instability 0 Special Hazard -
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 4 of 10
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
Hydrocarbons are basically non-conductors of electricity and can become electrostatically
charged during mixing, filtering, pumping at high flow rates or loading and transfer
operations. If this charge reaches a sufficiently high level, sparks can form that may ignite
the vapors of flammable liquids. Sudden release of hot organic chemical vapors or mists
from process equipment operating under elevated temperature and pressure, or sudden
ingress of air into vacuum equipment may result in ignition of vapors or mists without the
presence of obvious ignition sources. Nozzle spouts must be kept in contact with the
containers or tank during the entire filling operation.
Storage Conditions:Store in properly closed containers that are appropriately labeled and in a cool,
well-ventilated area.
Incompatible Materials Strong oxidizing agents.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Name ACGIH TLV OSHA PELS:OSHA - Vacated PELs NIOSH IDLH
Benzene
71-43-2
0.5 ppm TWA
2.5 ppm STEL
Skin - potential significant
contribution to overallexposure by the cutaneous
route
TWA: 10 ppm (applies to
industry segments exempt
from the benzene
standard)TWA: 1 ppm
STEL: 5 ppm
(see 29 CFR 1910.1028)
25 ppm Ceiling
1 ppm TWA
5 ppm STEL
500 ppm
Notes:The manufacturer has voluntarily elected to provide exposure limits contained in OSHA's
1989 air contaminants standard in its SDSs, even though certain of those exposure limits
were vacated in 1992.
Engineering measures:Local or general exhaust required in an enclosed area or when there is inadequate
ventilation. Use mechanical ventilation equipment that is explosion-proof.
Personal protective equipment
Eye protection:Use goggles or face-shield if the potential for splashing exists.
Skin and body protection:For non-exposure jobs or where exposure is expected to be less than 15 minutes, neoprene
gloves can be used to prevent skin contact. For all exposure jobs expected to be greater
than 15 minutes, Viton® gloves should be used to prevent skin contact. Glove suitability is
based on workplace conditions and usage. Contact the glove manufacturer for specific
advice on glove selection and breakthrough times. Depending upon the conditions of use
and specific work situations, additional protective equipment and/or clothing may be
required to control exposures.
Respiratory protection:Approved organic vapor chemical cartridge or supplied air respirators should be worn for
exposures to any components exceeding the established exposure limits. Observe
respirator assigned protection factors (APFs) criteria cited in federal OSHA 29 CFR
1910.134. Self-contained breathing apparatus should be used for fire fighting.
Hygiene measures:Handle in accordance with good industrial hygiene and safety practice. Avoid contact with
skin, eyes and clothing.
9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
Physical State Liquid
Appearance Clear Liquid
Color Colorless
Odor Sweet , Distinct
Odor Threshold 12 ppmv
Property Values (Method)
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Melting Point / Freezing Point 5.5 °C / 42 °F
Initial Boiling Point / Boiling Range 80 °C / 176 °F
Flash Point -11 °C / 12 °F
Evaporation Rate 5.1 (Butyl acetate = 1)
Flammability (solid, gas)Not applicable.
Flammability Limit in Air (%):
Upper Flammability Limit:7.1
Lower Flammability Limit:1.4
Explosion limits:No data available.
Vapor Pressure 3.21 psia @ 100°F
Vapor Density 2.7 (Air = 1)
Specific Gravity / Relative Density 0.883
Water Solubility No data available.
Solubility in other solvents No data available.
Partition Coefficient No data available.
Decomposition temperature No data available.
pH:Not applicable.
Autoignition Temperature 562 °C / 1044 °F
Kinematic Viscosity 0.593 cSt @ 100°F
Dynamic Viscosity No data available.
Explosive Properties No data available.
VOC Content (%)No data available.
Density No data available.
Bulk Density Not applicable.
10. STABILITY AND REACTIVITY
Chemical stability The material is stable at 70°F (21°C ), 760 mmHg pressure.
Possibility of hazardous reactions None under normal processing.
Hazardous polymerization Will not occur.
Conditions to avoid Sources of heat or ignition.
Incompatible Materials Strong oxidizing agents.
Hazardous decomposition products None known under normal conditions of use.
11. TOXICOLOGICAL INFORMATION
Potential short-term adverse effects from overexposures
Inhalation Overexposure may cause respiratory tract irritation and central nervous system
depression. Breathing high concentrations of this material, for example, in a confined space
or by intentional abuse, can cause irregular heartbeats which can cause death.
Eye contact Irritating to eyes.
Skin contact Irritating to skin. May be absorbed through the skin in harmful amounts. Effects may
become more serious with repeated or prolonged contact.
Ingestion May be fatal if swallowed or vomited and enters airways. May cause irritation of the mouth,
throat and gastrointestinal tract. May cause central nervous system depression or effects.
Acute toxicological data
Name Oral LD50 Dermal LD50 Inhalation LC50
Benzene > 2000 mg/kg (Rat)> 5000 mg/kg (Rabbit)> 20 mg/l (Rat) 4 h
Reactivity The product is non-reactive under normal conditions.
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 6 of 10
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
71-43-2
Delayed and immediate effects as well as chronic effects from short and long-term exposure
BENZENE: Studies of workers exposed to benzene show clear evidence that overexposure
can cause cancer and other diseases of the blood forming organs including Acute
Myelogenous Leukemia (AML), and Aplastic Anemia (AA), an often fatal disease. Some
studies suggest overexposure to benzene may also be associated with Myelodysplastic
Syndrome (MDS). Findings from a case control study of workers exposed to benzene was
reported during the 2009 Benzene Symposium in Munich included an increase in Acute
Myeloid Leukemias and Non-Hodgkins Lymphoid Neoplasms (NHLN) of the subtype
follicular lymphoma (FL) in some occupational categories. Some studies of workers
exposed to benzene have shown an association with increased rates of chromosome
aberrations in circulating lymphocytes. One study of women workers exposed to benzene
suggested a weak association with irregular menstruation. However, other studies of
workers exposed to benzene have not demonstrated clear evidence of an effect on fertility
or reproductive outcome in humans. Benzene can cross the placenta and affect the
developing fetus. Cases of AA have been reported in the offspring of persons severely
overexposed to benzene. Studies in laboratory animals indicate that prolonged, repeated
exposure to high levels of benzene vapor can cause bone marrow suppression and cancer
in multiple organ systems. Studies in laboratory animals show evidence of adverse effects
on male reproductive organs following high levels of exposure but no significant effects on
reproduction have been observed. Embryotoxicity has been reported in studies of
laboratory animals but effects were limited to reduced fetal weight and minor skeletal
variations. Benzene has been classified as a proven human carcinogen by OSHA and a
Group 1 (Carcinogenic to Humans) material by IARC. The current proposed IARC
classification for benzene is summarized as follows: Sufficient evidence for Acute Myeloid
Leukemia; limited evidence for Acute Lymphatic Leukemia, Chronic Lymphatic Leukemia,
Non-Hodgkin Lymphoma, and Multiple Myeloma.
Adverse effects related to the physical, chemical and toxicological characteristics
Signs and Symptoms Overexposure to vapors may cause eye, skin and respiratory irritation. Inhalation of high
vapor concentrations may cause symptoms like headache, dizziness, tiredness, nausea
and vomiting Repeated or prolonged skin contact may cause drying, reddening, itching and
cracking.
Sensitization Not expected to be a skin or respiratory sensitizer.
Mutagenic effects May cause genetic defects.
Carcinogenicity Cancer designations are listed in the table below
Name ACGIH
(Class)
IARC
(Class)
NTP OSHA
Benzene
71-43-2
Confirmed human
carcinogen (A1)
Carcinogenic to humans (1)Known to be human
carcinogen
Known carcinogen
Reproductive toxicity None known.
Specific Target Organ Toxicity
(STOT) - single exposure
Not classified.
Specific Target Organ Toxicity
(STOT) - repeated exposure
Blood. Blood-forming organs. Immune system.
Aspiration hazard May be fatal if swallowed or vomited and enters airways.
12. ECOLOGICAL INFORMATION
Ecotoxicity This product should be considered toxic to aquatic organisms.
Name Algae/aquatic plants Fish Toxicity to Crustacea
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 7 of 10
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
Microorganisms
Benzene
71-43-2
72-hr EC50 = 29 mg/l
Algae
96-hr LC50 = 5.3 mg/l
Rainbow trout
(flow-through)
-48-hr EC50 = 8.76-15.6 mg/l
Daphnia magna (Static)
Persistence and degradability Readily biodegradable in the environment.
Bioaccumulation Not expected to bioaccumulate in aquatic organisms.
Mobility in soil May partition into air, soil and water.
Other adverse effects No information available.
13. DISPOSAL CONSIDERATIONS
Description of Waste Residues
This material may be a flammable liquid waste.
Safe Handling of Wastes
Handle in accordance with applicable local, state, and federal regulations. Use personal protection measures as required. Use
appropriate grounding and bonding practices. Use only non-sparking tools. Do not expose to heat, open flames, strong oxidizers or
other sources of ignition. No smoking.
Disposal of Wastes / Methods of Disposal
The user is responsible for determining if any discarded material is a hazardous waste (40 CFR 262.11). Dispose of in accordance
with federal, state and local regulations.
Methods of Contaminated Packaging DisposalEmpty containers should be completely drained and then discarded or recycled, if possible. Do not cut, drill, grind or weld on empty
containers since explosive residues may be present. Dispose of in accordance with federal, state and local regulations.
14. TRANSPORT INFORMATION
DOT (49 CFR 172.101):
UN Proper Shipping Name:Benzene
UN/Identification No:UN 1114
Class:3
Packing Group:II
TDG (Canada):
UN Proper Shipping Name:Benzene
UN/Identification No:UN 1114
Transport Hazard Class(es):3
Packing Group:II
15. REGULATORY INFORMATION
US Federal Regulatory Information:
US TSCA Chemical Inventory Section 8(b):This product and/or its components are listed on the TSCA
Chemical Inventory.
EPA Superfund Amendment & Reauthorization Act (SARA):
SARA Section 302:This product does not contain any component(s) included on EPA's Extremely Hazardous
Substance (EHS) List.
Name CERCLA/SARA - Section 302 Extremely Hazardous
Substances and TPQs
Benzene NA
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 8 of 10
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0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
SARA Section 304:This product may contain component(s) identified either as an EHS or a CERCLA
Hazardous substance which in case of a spill or release may be subject to SARA reporting
requirements:
Name Hazardous Substances RQs
Benzene 10
SARA Section 311/312:The following EPA hazard categories apply to this product:
Acute Health Hazard
Chronic Health Hazard
Fire Hazard
SARA Section 313:This product may contain component(s), which if in exceedance of the de minimus
threshold, may be subject to the reporting requirements of SARA Title III Section 313 Toxic
Release Reporting (Form R).
Name CERCLA/SARA 313 Emission reporting:
Benzene 0.1 % de minimis concentration
State and Community Right-To-Know Regulations:
The following component(s) of this material are identified on the regulatory lists below:
Benzene
Louisiana Right-To-Know:Not Listed
California Proposition 65:Carcinogen, initial date 2/27/87
Developmental toxicity, initial date 12/26/97
Male reproductive toxicity, initial date 12/26/97
New Jersey Right-To-Know:SN 0197
Pennsylvania Right-To-Know:Environmental hazard; Special hazardous substance
Massachusetts Right-To Know:Carcinogen; Extraordinarily hazardous
Florida Substance List:Not Listed
Rhode Island Right-To-Know:Toxic (skin); Flammable (skin); Carcinogen (skin)
Michigan Critical Materials Register List:100 lb Annual usage threshold
Massachusetts Extraordinarily Hazardous Substances:Carcinogen; Extraordinarily hazardous
California - Regulated Carcinogens:Not Listed
Pennsylvania RTK - Special Hazardous
Substances:
Present
New Jersey - Special Hazardous Substances:Carcinogen; Flammable - third degree; Mutagen
New Jersey - Environmental Hazardous
Substances List:
SN 0197 TPQ: 500 lb
Illinois - Toxic Air Contaminants:Present
New York - Reporting of Releases Part 597 -
List of Hazardous Substances:
10 lb RQ (air); 1 lb RQ (land/water)
Canada DSL/NDSL Inventory:This product and/or its components are listed either on the Domestic Substances List (DSL)
or are exempt.
Canadian Regulatory Information:This product has been classified in accordance with the hazard criteria of the Controlled
Products Regulations and the SDS contains all of the information required by those
regulations.
Name Canada - WHMIS: Classifications of
Substances:
Canada - WHMIS: Ingredient
Disclosure:
Benzene B2,D2A,D2B 0.1%
Note:Not applicable.
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 9 of 10
16. OTHER INFORMATION
_____________________________________________________________________________________________
0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015
Prepared By Toxicology and Product Safety
Revision Notes
Revision Date 05/14/2015
Disclaimer
The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the
date of its publication. The information is intended as guidance for safe handling, use, processing, storage,
transportation, accidental release, clean-up and disposal and is not considered a warranty or quality specification. The
information relates only to the specific material designated and may not be valid for such material used in combination
with any other materials or in any process, unless specified in the text.
SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 10 of 10
APPENDIX B
EMERGENCY PHONE NUMBERS

Emergency Contact Phone Number
Environmental PM: Greg Hans, PMP 617.828.9948 (M)
CES Group Engineers, LLP 704.325.5408 (D)

SSO (if assigned by Dawn Crowell, CES Group Engineers
And/or
by Env PM) Carolina Soil Investigations 704.539.5279
(Assigned CSI field crew chief)

Back-up PM Dawn Crowell 551.333.4787 (M)
CES Group Engineers, LLP 980.222.0206 (D)

Police: North Carolina Highway Patrol 911
West Jefferson Police Department 336.246.9410

Hospital: Johnson County Community Hospital 423.727.1100
1901 South Shady Street
Mountain City, TN 37683

Fire: Pond Mountain Fire Station 11-1 336.385.6090

Doctor: Johnson County Community Hospital 423.727.1100

Ambulance 911

NCDENR (Winston-Salem Region) 336.776.9800

Directions to the nearest hospital: Johnson County Community Hospital, 1901 South
Shady Street, Mountain City, TN 37683

Refer to Appendix C.

APPENDIX C
ROUTE TO HOSPITAL

Starting at approximate address of 12295 NC Hwy 88 West, Creston, NC 28615

End at Johnson County Community Hospital 1901 S. Shady St, Mountain City, TN 37683

APPENDIX D

SOIL AND GROUNDWATER WELL
LABORATORY REPORTS AND CHAIN-
OF-CUSTODY RECORDS

Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.

6/17/2022
CES Group Greg Hans
274 N. Hwy 16, Ste 300 Denver, NC, 28037
Ref: Analytical Testing
Lab Report Number: 22-159-0001 Client Project Description: Creston Superette
Dear Greg Hans:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/8/2022 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 33
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202237735State ProgramNorth Carolina
12/31/2022402State ProgramNorth Carolina
07/31/202299012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Page 1 of 1 00016/22-159-0001
Page 2 of 33
Report Number:
Sample Summary Table
Client Project Description:
22-159-0001
Creston Superette
Lab No Client Sample ID Matrix Date Collected Date Received
06/06/2022 11:25Solids 91571 MW-1 06/08/2022 09:00
Page 3 of 33
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
22-159-0001
Report Limit
Project:Creston Superette
V 91571MW-1
40.9 06/16/2022 19:196010DChromiummg/Kg - dry 0.212
10.7 06/16/2022 19:196010DLeadmg/Kg - dry 0.098
J0.005 06/10/2022 13:488260DAcetonemg/Kg - dry 0.003
J0.002 06/10/2022 13:488260DMethyl tert-butyl ether (MTBE)mg/Kg - dry 0.0008
J5.99 06/09/2022 12:57MADEP-VPH Aliphatic C9-C12 mg/Kg - dry 5.71
J1.88 06/09/2022 12:57MADEP-VPH Aromatic C9-C10 mg/Kg - dry 0.780
20.1 06/13/2022 11:15SW-DRYWT Moisture %
Page 4 of 33

Client: CES Group CASE NARRATIVE
Project: Creston Superette Lab Report Number: 22-159-0001
Date: 6/17/2022
Metals Analysis Method 6010D Sample 91333 (SB-01) Analyte: Lead
QC Batch No: V20054/V19775 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A post
digestion spike was performed and passed quality control acceptance ranges. No matrix interference is suspected.

Page 5 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
20.1 %Moisture 1 06/13/22 11:15 SW-DRYWTADC
40.9 mg/Kg - dry 0.212 0.625Chromium 1 06/16/22 19:19 6010DEDV
10.7 mg/Kg - dry 0.098 0.375Lead 1 06/16/22 19:19 6010DEDV
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 6 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 LOW
8260D Prep Batch(es):V19819 06/10/22 08:00
0.005 J mg/Kg - dry 0.003 0.025Acetone 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.025Acrolein 1 06/10/22 13:48 V19820TBL
<0.0009 mg/Kg - dry 0.0009 0.025Acrylonitrile 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.006Benzene 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.006Bromobenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Bromochloromethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Bromodichloromethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Bromoform 1 06/10/22 13:48 V19820TBL
<0.002 mg/Kg - dry 0.002 0.012
Bromomethane 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.006n-Butylbenzene 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.006sec-Butyl benzene 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.006tert-Butyl benzene 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.006Carbon Disulfide 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Carbon Tetrachloride 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.006Chlorobenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006
Chlorodibromomethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.012Chloroethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Chloroform 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.012Chloromethane 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.0062-Chlorotoluene 1 06/10/22 13:48 V19820TBL
<0.0005 mg/Kg - dry 0.0005 0.0064-Chlorotoluene 1 06/10/22 13:48 V19820TBL
<0.0009 mg/Kg - dry 0.0009 0.006Di-Isopropyl Ether (DIPE)1 06/10/22 13:48 V19820TBL
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 7 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 LOW
8260D Prep Batch(es):V19819 06/10/22 08:00
<0.0006 mg/Kg - dry 0.0006 0.0121,2-Dibromo-3-Chloropropane 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.0061,2-Dibromoethane 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.006Dibromomethane 1 06/10/22 13:48 V19820TBL
<0.0004 mg/Kg - dry 0.0004 0.0061,2-Dichlorobenzene 1 06/10/22 13:48 V19820TBL
<0.0005 mg/Kg - dry 0.0005 0.0061,3-Dichlorobenzene 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.0061,4-Dichlorobenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.012Dichlorodifluoromethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.0061,1-Dichloroethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006
1,2-Dichloroethane 1 06/10/22 13:48 V19820TBL
<0.0009 mg/Kg - dry 0.0009 0.0061,1-Dichloroethene 1 06/10/22 13:48 V19820TBL
<0.0010 mg/Kg - dry 0.0010 0.006cis-1,2-Dichloroethene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006trans-1,2-Dichloroethene 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.0061,2-Dichloropropane 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.0061,3-Dichloropropane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.0062,2-Dichloropropane 1 06/10/22 13:48 V19820TBL
<0.0010 mg/Kg - dry 0.0010 0.006
1,1-Dichloropropene 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.006cis-1,3-Dichloropropene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006trans-1,3-Dichloropropene 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.006Ethylbenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.062Ethyl Tertiary Butyl Ether (ETBE)1 06/10/22 13:48 V19820TBL
<0.0010 mg/Kg - dry 0.0010 0.012Hexachlorobutadiene 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.012n-Hexane 1 06/10/22 13:48 V19820TBL
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 8 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 LOW
8260D Prep Batch(es):V19819 06/10/22 08:00
<0.0008 mg/Kg - dry 0.0008 0.0252-Hexanone 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.006Isopropylbenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.0064-Isopropyl toluene 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.025Methyl Ethyl Ketone (MEK)1 06/10/22 13:48 V19820TBL
0.002 J mg/Kg - dry 0.0008 0.006Methyl tert-butyl ether (MTBE)1 06/10/22 13:48 V19820TBL
<0.018 mg/Kg - dry 0.018 0.0254-Methyl-2-Pentanone 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.012Methylene Chloride 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.012Naphthalene 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.006
n-Propylbenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Styrene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.0061,1,1,2-Tetrachloroethane 1 06/10/22 13:48 V19820TBL
<0.0004 mg/Kg - dry 0.0004 0.0061,1,2,2-Tetrachloroethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Tetrachloroethene 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.006Toluene 1 06/10/22 13:48 V19820TBL
<0.0007 mg/Kg - dry 0.0007 0.0121,2,3-Trichlorobenzene 1 06/10/22 13:48 V19820TBL
<0.0008 mg/Kg - dry 0.0008 0.012
1,2,4-Trichlorobenzene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.0061,1,1-Trichloroethane 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.0061,1,2-Trichloroethane 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.006Trichloroethene 1 06/10/22 13:48 V19820TBL
<0.002 mg/Kg - dry 0.002 0.012Trichlorofluoromethane 1 06/10/22 13:48 V19820TBL
<0.0009 mg/Kg - dry 0.0009 0.0061,2,3-Trichloropropane 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.0061,2,4-Trimethylbenzene 1 06/10/22 13:48 V19820TBL
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 9 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5035 LOW
8260D Prep Batch(es):V19819 06/10/22 08:00
<0.0007 mg/Kg - dry 0.0007 0.0061,3,5-Trimethylbenzene 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.012Vinyl Acetate 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.012Vinyl Chloride 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.006o-Xylene 1 06/10/22 13:48 V19820TBL
<0.001 mg/Kg - dry 0.001 0.012m,p-Xylene 1 06/10/22 13:48 V19820TBL
<0.0006 mg/Kg - dry 0.0006 0.006Xylene (Total)1 06/10/22 13:48 V19820
Surrogate: 4-Bromofluorobenzene 99.8 Limits: 70-130%06/10/22 13:481 TBL V19820
Surrogate: Dibromofluoromethane 101 Limits: 84-123%06/10/22 13:481 TBL V19820
Surrogate: Toluene-d8 99.6 Limits: 76-129%06/10/22 13:481 TBL V19820
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8270E Prep Batch(es):V19797 06/10/22 10:00
<0.145 mg/Kg - dry 0.145 0.826Acenaphthene 1 06/10/22 19:32 V19929JC1
<0.131 mg/Kg - dry 0.131 0.826Acenaphthylene 1 06/10/22 19:32 V19929JC1
<0.190 mg/Kg - dry 0.190 0.826Aniline 1 06/10/22 19:32 V19929JC1
<0.178 mg/Kg - dry 0.178 0.826Anthracene 1 06/10/22 19:32 V19929JC1
<0.173 mg/Kg - dry 0.173 0.826Benzo(a)anthracene 1 06/10/22 19:32 V19929JC1
<0.183 mg/Kg - dry 0.183 0.826
Benzo(a)pyrene 1 06/10/22 19:32 V19929JC1
<0.182 mg/Kg - dry 0.182 0.826Benzo(b)fluoranthene 1 06/10/22 19:32 V19929JC1
<0.170 mg/Kg - dry 0.170 0.826Benzo(g,h,i)perylene 1 06/10/22 19:32 V19929JC1
<0.171 mg/Kg - dry 0.171 0.826Benzo(k)fluoranthene 1 06/10/22 19:32 V19929JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 10 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8270E Prep Batch(es):V19797 06/10/22 10:00
<0.725 mg/Kg - dry 0.725 2.50Benzoic Acid 1 06/10/22 19:32 V19929JC1
<0.131 mg/Kg - dry 0.131 0.826Benzyl alcohol 1 06/10/22 19:32 V19929JC1
<0.147 mg/Kg - dry 0.147 0.826Bis(2-Chloroethoxy)methane 1 06/10/22 19:32 V19929JC1
<0.133 mg/Kg - dry 0.133 0.826Bis(2-Chloroethyl)ether 1 06/10/22 19:32 V19929JC1
<0.170 mg/Kg - dry 0.170 0.413Bis(2-Chloroisopropyl)ether 1 06/10/22 19:32 V19929JC1
<0.150 mg/Kg - dry 0.150 0.826Bis(2-ethylhexyl)phthalate 1 06/10/22 19:32 V19929JC1
<0.136 mg/Kg - dry 0.136 0.8264-Bromophenyl phenyl ether 1 06/10/22 19:32 V19929JC1
<0.141 mg/Kg - dry 0.141 0.413Butyl benzyl phthalate 1 06/10/22 19:32 V19929JC1
<0.115 mg/Kg - dry 0.115 0.826
4-Chloro-3-methylphenol 1 06/10/22 19:32 V19929JC1
<0.140 mg/Kg - dry 0.140 0.4134-Chloroaniline 1 06/10/22 19:32 V19929JC1
<0.145 mg/Kg - dry 0.145 0.8262-Chloronaphthalene 1 06/10/22 19:32 V19929JC1
<0.122 mg/Kg - dry 0.122 0.8262-Chlorophenol 1 06/10/22 19:32 V19929JC1
<0.157 mg/Kg - dry 0.157 1.254-Chlorophenyl phenyl ether 1 06/10/22 19:32 V19929JC1
<0.177 mg/Kg - dry 0.177 0.826Chrysene 1 06/10/22 19:32 V19929JC1
<0.287 mg/Kg - dry 0.287 0.826Dibenz(a,h)anthracene 1 06/10/22 19:32 V19929JC1
<0.148 mg/Kg - dry 0.148 0.826
Dibenzofuran 1 06/10/22 19:32 V19929JC1
<0.118 mg/Kg - dry 0.118 0.8261,2-Dichlorobenzene 1 06/10/22 19:32 V19929JC1
<0.121 mg/Kg - dry 0.121 0.8261,3-Dichlorobenzene 1 06/10/22 19:32 V19929JC1
<0.122 mg/Kg - dry 0.122 0.4131,4-Dichlorobenzene 1 06/10/22 19:32 V19929JC1
<0.183 mg/Kg - dry 0.183 0.8263,3'-Dichlorobenzidine 1 06/10/22 19:32 V19929JC1
<0.119 mg/Kg - dry 0.119 0.8262,4-Dichlorophenol 1 06/10/22 19:32 V19929JC1
<0.225 mg/Kg - dry 0.225 0.826Diethyl phthalate 1 06/10/22 19:32 V19929JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 11 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8270E Prep Batch(es):V19797 06/10/22 10:00
<0.217 mg/Kg - dry 0.217 0.826Dimethyl phthalate 1 06/10/22 19:32 V19929JC1
<0.135 mg/Kg - dry 0.135 0.4132,4-Dimethylphenol 1 06/10/22 19:32 V19929JC1
<0.133 mg/Kg - dry 0.133 0.826Di-n-butyl phthalate 1 06/10/22 19:32 V19929JC1
<0.300 mg/Kg - dry 0.300 1.884,6-Dinitro-2-methylphenol 1 06/10/22 19:32 V19929JC1
<0.650 mg/Kg - dry 0.650 1.882,4-Dinitrophenol 1 06/10/22 19:32 V19929JC1
<0.120 mg/Kg - dry 0.120 0.8262,4-Dinitrotoluene 1 06/10/22 19:32 V19929JC1
<0.135 mg/Kg - dry 0.135 0.8262,6-Dinitrotoluene 1 06/10/22 19:32 V19929JC1
<0.178 mg/Kg - dry 0.178 0.413Di-n-Octyl Phthalate 1 06/10/22 19:32 V19929JC1
<0.153 mg/Kg - dry 0.153 0.826
Fluoranthene 1 06/10/22 19:32 V19929JC1
<0.160 mg/Kg - dry 0.160 0.826Fluorene 1 06/10/22 19:32 V19929JC1
<0.132 mg/Kg - dry 0.132 0.826Hexachlorobenzene 1 06/10/22 19:32 V19929JC1
<0.122 mg/Kg - dry 0.122 0.826Hexachlorobutadiene 1 06/10/22 19:32 V19929JC1
<0.196 mg/Kg - dry 0.196 0.826Hexachlorocyclopentadiene 1 06/10/22 19:32 V19929JC1
<0.099 mg/Kg - dry 0.099 0.826Hexachloroethane 1 06/10/22 19:32 V19929JC1
<0.224 mg/Kg - dry 0.224 0.826Indeno(1,2,3-cd)pyrene 1 06/10/22 19:32 V19929JC1
<0.239 mg/Kg - dry 0.239 0.826
Isophorone 1 06/10/22 19:32 V19929JC1
<0.132 mg/Kg - dry 0.132 0.8261-Methylnaphthalene 1 06/10/22 19:32 V19929JC1
<0.125 mg/Kg - dry 0.125 0.8262-Methylnaphthalene 1 06/10/22 19:32 V19929JC1
<0.121 mg/Kg - dry 0.121 0.8262-Methylphenol 1 06/10/22 19:32 V19929JC1
<0.106 mg/Kg - dry 0.106 0.8263&4 Methylphenol 1 06/10/22 19:32 V19929JC1
<0.180 mg/Kg - dry 0.180 0.826Naphthalene 1 06/10/22 19:32 V19929JC1
<0.121 mg/Kg - dry 0.121 0.8262-Nitroaniline 1 06/10/22 19:32 V19929JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 12 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
3546
8270E Prep Batch(es):V19797 06/10/22 10:00
<0.150 mg/Kg - dry 0.150 0.8263-Nitroaniline 1 06/10/22 19:32 V19929JC1
<0.116 mg/Kg - dry 0.116 0.4134-Nitroaniline 1 06/10/22 19:32 V19929JC1
<0.145 mg/Kg - dry 0.145 0.413Nitrobenzene 1 06/10/22 19:32 V19929JC1
<0.111 mg/Kg - dry 0.111 0.8262-Nitrophenol 1 06/10/22 19:32 V19929JC1
<0.146 mg/Kg - dry 0.146 0.8264-Nitrophenol 1 06/10/22 19:32 V19929JC1
<0.329 mg/Kg - dry 0.329 0.826N-Nitrosodimethylamine 1 06/10/22 19:32 V19929JC1
<0.226 mg/Kg - dry 0.226 0.826N-Nitrosodiphenylamine 1 06/10/22 19:32 V19929JC1
<0.147 mg/Kg - dry 0.147 0.826N-Nitroso-di-n-propylamine 1 06/10/22 19:32 V19929JC1
<0.434 mg/Kg - dry 0.434 1.25
Pentachlorophenol 1 06/10/22 19:32 V19929JC1
<0.260 mg/Kg - dry 0.260 0.826Phenanthrene 1 06/10/22 19:32 V19929JC1
<0.140 mg/Kg - dry 0.140 0.826Phenol 1 06/10/22 19:32 V19929JC1
<0.167 mg/Kg - dry 0.167 0.826Pyrene 1 06/10/22 19:32 V19929JC1
<0.099 mg/Kg - dry 0.099 0.413Pyridine 1 06/10/22 19:32 V19929JC1
<0.133 mg/Kg - dry 0.133 0.8261,2,4-Trichlorobenzene 1 06/10/22 19:32 V19929JC1
<0.120 mg/Kg - dry 0.120 0.8262,4,5-Trichlorophenol 1 06/10/22 19:32 V19929JC1
<0.120 mg/Kg - dry 0.120 0.826
2,4,6-Trichlorophenol 1 06/10/22 19:32 V19929JC1
8270ESurrogate: Phenol-d5 82.3 Limits: 34-121%06/10/22 19:321 JC1
Surrogate: 2-Fluorobiphenyl 84.3 Limits: 44-115%06/10/22 19:321 JC1 V19929
Surrogate: 2-Fluorophenol 85.6 Limits: 35-115%06/10/22 19:321 JC1 V19929
Surrogate: Nitrobenzene-d5 72.3 Limits: 37-122%06/10/22 19:321 JC1 V19929
Surrogate: 4-Terphenyl-d14 94.6 Limits: 54-127%06/10/22 19:321 JC1 V19929
Surrogate: 2,4,6-Tribromophenol 89.8 Limits: 39-132%06/10/22 19:321 JC1 V19929
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 13 of 33
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0001
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Superette
Report Date : 06/17/2022
Sample ID :
Lab No :
Sampled:MW-1
91571 Matrix:
6/6/2022 11:25
Solids
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
MAEPH (Prep)
MADEP-EPH Prep Batch(es):V19940 06/13/22 13:30
<11.4 mg/Kg - dry 11.4 62.2Aliphatic C9-C18 1 06/16/22 15:26 V19941JC1
<15.1 mg/Kg - dry 15.1 62.2Aliphatic C19-C36 1 06/16/22 15:26 V19941JC1
<17.6 mg/Kg - dry 17.6 62.2Aromatic C11-C22 1 06/16/22 15:26 V19941JC1
MADEP-EPHSurrogate: 2-Bromonaphthalene 89.7 Limits: 40-140%06/16/22 15:261 JC1
MADEP-EPHSurrogate: Chlorooctadecane 61.8 Limits: 40-140%06/16/22 15:261 JC1
MADEP-EPHSurrogate: OTP Surrogate 62.8 Limits: 40-140%06/16/22 15:261 JC1
Surrogate: 2-Fluorobiphenyl 82.1 Limits: 40-140%06/16/22 15:261 JC1 V19941
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
MAVPH (Prep)
MADEP-VPH Prep Batch(es):V19766 06/09/22 08:00
<1.53 mg/Kg - dry 1.53 10.0
Aliphatic C5-C8 100 06/09/22 12:57 V19767TBL
5.99 J mg/Kg - dry 5.71 10.0Aliphatic C9-C12 100 06/09/22 12:57 V19767TBL
1.88 J mg/Kg - dry 0.780 10.0Aromatic C9-C10 100 06/09/22 12:57 V19767TBL
MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)115 Limits: 70-130%06/09/22 12:57100 TBL
MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)109 Limits: 70-130%06/09/22 12:57100 TBL
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 14 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Metals Analysis
6010D
V20054QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3050B
QC Prep:V19775
Associated Lab Samples: 91571
LRB-V19775 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
06/16/22 18:080.5000.170<0.170mg/KgChromium
06/16/22 18:080.3000.079<0.079mg/KgLead
LCS-V19775Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
11356.750.0mg/KgChromium 80-120
1105.495.00mg/KgLead 80-120
V 91333-MS-V19775 V 91333-MSD-V19775Matrix Spike & Matrix Spike Duplicate
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
MSD
%Rec RPD
63.0 97.062.450.050.014.3mg/KgChromium 96.0 75-125 0.9 20
31.4 152*27.75.005.0023.8mg/KgLead 78.0 75-125 12.5 20
V 91333-PDS-V19775Post Digestion Spike
Parameter
Analyzed%
Recovery
PDS
ResultUnits
06/16/22 18:2899.0130mg/KgChromium
06/16/22 18:2810024.4mg/KgLead
Page 1 of 17Date:06/17/2022 01:48 PM
Page 15 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V19820QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 LOW
QC Prep:V19819
Associated Lab Samples: 91571
LRB-V19819 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 12:520.0200.002<0.002mg/KgAcetone
06/10/22 12:520.0200.001<0.001mg/KgAcrolein
06/10/22 12:520.0200.0008<0.0008mg/KgAcrylonitrile
06/10/22 12:520.0050.0006<0.0006mg/KgBenzene
06/10/22 12:520.0050.0005<0.0005mg/KgBromobenzene
06/10/22 12:520.0050.0008<0.0008mg/KgBromochloromethane
06/10/22 12:520.0050.001<0.001mg/KgBromodichloromethane
06/10/22 12:520.0050.001<0.001mg/KgBromoform
06/10/22 12:520.0100.001<0.001mg/KgBromomethane
06/10/22 12:520.0050.0005<0.0005mg/Kgn-Butylbenzene
06/10/22 12:520.0050.0006<0.0006mg/Kgsec-Butyl benzene
06/10/22 12:520.0050.0005<0.0005mg/Kgtert-Butyl benzene
06/10/22 12:520.0050.0006<0.0006mg/KgCarbon Disulfide
06/10/22 12:520.0050.001<0.001mg/KgCarbon Tetrachloride
06/10/22 12:520.0050.0007<0.0007mg/KgChlorobenzene
06/10/22 12:520.0050.0009<0.0009mg/KgChlorodibromomethane
06/10/22 12:520.0100.0009<0.0009mg/KgChloroethane
06/10/22 12:520.0050.001<0.001mg/KgChloroform
06/10/22 12:520.0100.0006<0.0006mg/KgChloromethane
06/10/22 12:520.0050.0005<0.0005mg/Kg2-Chlorotoluene
06/10/22 12:520.0050.0004<0.0004mg/Kg4-Chlorotoluene
06/10/22 12:520.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE)
06/10/22 12:520.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane
06/10/22 12:520.0050.0006<0.0006mg/Kg1,2-Dibromoethane
06/10/22 12:520.0050.0006<0.0006mg/KgDibromomethane
06/10/22 12:520.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene
06/10/22 12:520.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene
Page 2 of 17Date:06/17/2022 01:48 PM
Page 16 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V19820QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 LOW
QC Prep:V19819
Associated Lab Samples: 91571
LRB-V19819 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 12:520.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene
06/10/22 12:520.0100.001<0.001mg/KgDichlorodifluoromethane
06/10/22 12:520.0050.0008<0.0008mg/Kg1,1-Dichloroethane
06/10/22 12:520.0050.001<0.001mg/Kg1,2-Dichloroethane
06/10/22 12:520.0050.0007<0.0007mg/Kg1,1-Dichloroethene
06/10/22 12:520.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene
06/10/22 12:520.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene
06/10/22 12:520.0050.0004<0.0004mg/Kg1,2-Dichloropropane
06/10/22 12:520.0050.0006<0.0006mg/Kg1,3-Dichloropropane
06/10/22 12:520.0050.001<0.001mg/Kg2,2-Dichloropropane
06/10/22 12:520.0050.0008<0.0008mg/Kg1,1-Dichloropropene
06/10/22 12:520.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene
06/10/22 12:520.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene
06/10/22 12:520.0050.0006<0.0006mg/KgEthylbenzene
06/10/22 12:520.0500.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE)
06/10/22 12:520.0100.0008<0.0008mg/KgHexachlorobutadiene
06/10/22 12:520.0100.0007<0.0007mg/Kgn-Hexane
06/10/22 12:520.0200.0006<0.0006mg/Kg2-Hexanone
06/10/22 12:520.0050.0005<0.0005mg/KgIsopropylbenzene
06/10/22 12:520.0050.001<0.001mg/Kg4-Isopropyl toluene
06/10/22 12:520.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK)
06/10/22 12:520.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE)
06/10/22 12:520.0200.015<0.015mg/Kg4-Methyl-2-Pentanone
06/10/22 12:520.0100.001<0.001mg/KgMethylene Chloride
06/10/22 12:520.0100.0010<0.0010mg/KgNaphthalene
06/10/22 12:520.0050.0005<0.0005mg/Kgn-Propylbenzene
06/10/22 12:520.0050.001<0.001mg/KgStyrene
Page 3 of 17Date:06/17/2022 01:48 PM
Page 17 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V19820QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 LOW
QC Prep:V19819
Associated Lab Samples: 91571
LRB-V19819 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 12:520.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane
06/10/22 12:520.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane
06/10/22 12:520.0050.0009<0.0009mg/KgTetrachloroethene
06/10/22 12:520.0050.0007<0.0007mg/KgToluene
06/10/22 12:520.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene
06/10/22 12:520.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene
06/10/22 12:520.0050.001<0.001mg/Kg1,1,1-Trichloroethane
06/10/22 12:520.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane
06/10/22 12:520.0050.0009<0.0009mg/KgTrichloroethene
06/10/22 12:520.0100.002<0.002mg/KgTrichlorofluoromethane
06/10/22 12:520.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane
06/10/22 12:520.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene
06/10/22 12:520.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene
06/10/22 12:520.0100.0005<0.0005mg/KgVinyl Acetate
06/10/22 12:520.0100.0005<0.0005mg/KgVinyl Chloride
06/10/22 12:520.0050.0005<0.0005mg/Kgo-Xylene
06/10/22 12:520.0100.001<0.001mg/Kgm,p-Xylene
06/10/22 12:524-Bromofluorobenzene (S)101 70-130
06/10/22 12:52Dibromofluoromethane (S)101 84-123
06/10/22 12:52Toluene-d8 (S)100 76-129
LCS-V19819 LCSD-V19819Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
0.097 97.693.80.0930.100mg/KgAcetone 29-198 3.9 20
0.121 1211170.1170.100mg/KgAcrolein 70-130 3.3 20
Page 4 of 17Date:06/17/2022 01:48 PM
Page 18 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V19820QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 LOW
QC Prep:V19819
LCS-V19819 LCSD-V19819Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
0.107 1071050.1050.100mg/KgAcrylonitrile 65-134 1.8 20
0.047 94.297.00.0480.050mg/KgBenzene 74-127 2.9 20
0.048 97.499.20.0490.050mg/KgBromobenzene 73-125 1.8 20
0.049 99.01000.0500.050mg/KgBromochloromethane 72-134 1.0 20
0.048 96.896.40.0480.050mg/KgBromodichloromethane 75-122 0.4 20
0.049 98.296.80.0480.050mg/KgBromoform 66-135 1.4 20
0.047 95.81020.0500.050mg/KgBromomethane 20-180 6.0 20
0.049 98.21050.0520.050mg/Kgn-Butylbenzene 65-135 6.3 20
0.047 95.81010.0500.050mg/Kgsec-Butyl benzene 66-131 5.0 20
0.047 95.61010.0500.050mg/Kgtert-Butyl benzene 67-132 5.6 20
0.047 94.499.40.0490.050mg/KgCarbon Disulfide 61-129 5.1 20
0.045 91.01000.0500.050mg/KgCarbon Tetrachloride 64-143 9.8 20
0.049 99.21010.0500.050mg/KgChlorobenzene 74-118 1.9 20
0.048 97.898.00.0490.050mg/KgChlorodibromomethane 73-122 0.2 20
0.047 95.499.60.0490.050mg/KgChloroethane 33-149 4.3 20
0.046 93.497.40.0480.050mg/KgChloroform 73-127 4.1 20
0.047 95.01010.0500.050mg/KgChloromethane 45-143 5.7 20
0.048 96.61010.0500.050mg/Kg2-Chlorotoluene 67-124 4.8 20
0.048 96.61010.0500.050mg/Kg4-Chlorotoluene 71-126 4.8 20
0.051 1021030.0510.050mg/KgDi-Isopropyl Ether (DIPE)59-159 0.9 20
0.049 99.81010.0500.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 1.5 20
0.048 97.695.80.0470.050mg/Kg1,2-Dibromoethane 70-132 1.8 20
0.047 95.496.40.0480.050mg/KgDibromomethane 74-133 1.0 20
0.049 99.81010.0500.050mg/Kg1,2-Dichlorobenzene 72-123 1.3 20
0.050 1001030.0510.050mg/Kg1,3-Dichlorobenzene 71-120 2.7 20
0.049 99.01020.0510.050mg/Kg1,4-Dichlorobenzene 71-123 2.9 20
Page 5 of 17Date:06/17/2022 01:48 PM
Page 19 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V19820QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 LOW
QC Prep:V19819
LCS-V19819 LCSD-V19819Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
0.045 91.498.40.0490.050mg/KgDichlorodifluoromethane 26-146 7.3 20
0.049 98.61010.0500.050mg/Kg1,1-Dichloroethane 74-127 2.8 20
0.050 1011000.0500.050mg/Kg1,2-Dichloroethane 68-128 1.1 20
0.047 95.41020.0510.050mg/Kg1,1-Dichloroethene 67-149 7.0 20
0.049 98.81030.0510.050mg/Kgcis-1,2-Dichloroethene 76-134 4.5 20
0.049 98.41040.0520.050mg/Kgtrans-1,2-Dichloroethene 73-132 5.5 20
0.049 98.499.20.0490.050mg/Kg1,2-Dichloropropane 73-130 0.8 20
0.050 10198.40.0490.050mg/Kg1,3-Dichloropropane 75-124 2.2 20
0.048 97.41020.0500.050mg/Kg2,2-Dichloropropane 50-142 4.2 20
0.047 94.899.00.0490.050mg/Kg1,1-Dichloropropene 71-130 4.3 20
0.050 1001010.0500.050mg/Kgcis-1,3-Dichloropropene 71-125 1.1 20
0.050 1021020.0500.050mg/Kgtrans-1,3-Dichloropropene 68-123 0.1 20
0.047 95.498.80.0490.050mg/KgEthylbenzene 74-128 3.5 20
0.099 99.499.60.0990.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 0.2 20
0.049 98.61050.0520.050mg/KgHexachlorobutadiene 64-125 6.4 20
0.048 97.01040.0510.050mg/Kgn-Hexane 70-130 6.5 20
0.052 1061020.0500.050mg/Kg2-Hexanone 61-157 3.8 20
0.044 89.094.20.0470.050mg/KgIsopropylbenzene 68-126 5.6 20
0.048 97.61010.0500.050mg/Kg4-Isopropyl toluene 68-129 3.8 20
0.049 99.495.60.0470.050mg/KgMethyl Ethyl Ketone (MEK)63-149 3.8 20
0.047 95.695.80.0470.050mg/KgMethyl tert-butyl ether (MTBE)70-130 0.2 20
0.051 10399.00.0490.050mg/Kg4-Methyl-2-Pentanone 57-162 4.3 20
0.049 99.61000.0500.050mg/KgMethylene Chloride 74-129 0.8 20
0.046 93.894.40.0470.050mg/KgNaphthalene 57-157 0.6 20
0.048 97.01010.0500.050mg/Kgn-Propylbenzene 67-130 4.4 20
0.049 99.41020.0510.050mg/KgStyrene 77-121 2.5 20
Page 6 of 17Date:06/17/2022 01:48 PM
Page 20 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V19820QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5035 LOW
QC Prep:V19819
LCS-V19819 LCSD-V19819Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
0.049 99.81010.0500.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 0.7 20
0.047 94.892.00.0460.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 2.9 20
0.049 98.01030.0510.050mg/KgTetrachloroethene 68-130 4.5 20
0.047 95.497.80.0480.050mg/KgToluene 71-129 2.4 20
0.051 1031040.0520.050mg/Kg1,2,3-Trichlorobenzene 68-130 0.5 20
0.052 1051070.0530.050mg/Kg1,2,4-Trichlorobenzene 66-125 1.5 20
0.046 93.098.80.0490.050mg/Kg1,1,1-Trichloroethane 67-131 6.0 20
0.047 94.293.40.0460.050mg/Kg1,1,2-Trichloroethane 70-133 0.8 20
0.048 96.01020.0510.050mg/KgTrichloroethene 75-133 6.2 20
0.049 98.41060.0520.050mg/KgTrichlorofluoromethane 44-146 7.2 20
0.048 96.694.00.0470.050mg/Kg1,2,3-Trichloropropane 60-137 2.7 20
0.048 96.699.00.0490.050mg/Kg1,2,4-Trimethylbenzene 69-129 2.4 20
0.047 95.81010.0500.050mg/Kg1,3,5-Trimethylbenzene 69-128 5.0 20
0.055 1111090.0540.050mg/KgVinyl Acetate 60-140 1.4 20
0.048 96.01030.0510.050mg/KgVinyl Chloride 48-147 6.6 20
0.048 96.097.80.0480.050mg/Kgo-Xylene 74-126 1.8 20
0.095 95.597.60.0970.100mg/Kgm,p-Xylene 75-124 2.1 20
97.897.84-Bromofluorobenzene (S)70-130
10099.4Dibromofluoromethane (S)84-123
101101Toluene-d8 (S)76-129
Page 7 of 17Date:06/17/2022 01:48 PM
Page 21 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Semivolatile Organic Compounds - GC/MS
8270E
V19929QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V19797
Associated Lab Samples: 91571
LRB-V19797 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 16:050.6600.116<0.116mg/KgAcenaphthene
06/10/22 16:050.6600.105<0.105mg/KgAcenaphthylene
06/10/22 16:050.6600.152<0.152mg/KgAniline
06/10/22 16:050.6600.143<0.143mg/KgAnthracene
06/10/22 16:050.6600.139<0.139mg/KgBenzo(a)anthracene
06/10/22 16:050.6600.147<0.147mg/KgBenzo(a)pyrene
06/10/22 16:050.6600.146<0.146mg/KgBenzo(b)fluoranthene
06/10/22 16:050.6600.136<0.136mg/KgBenzo(g,h,i)perylene
06/10/22 16:050.6600.137<0.137mg/KgBenzo(k)fluoranthene
06/10/22 16:052.000.580<0.580mg/KgBenzoic Acid
06/10/22 16:050.6600.105<0.105mg/KgBenzyl alcohol
06/10/22 16:050.6600.118<0.118mg/KgBis(2-Chloroethoxy)methane
06/10/22 16:050.6600.107<0.107mg/KgBis(2-Chloroethyl)ether
06/10/22 16:050.3300.136<0.136mg/KgBis(2-Chloroisopropyl)ether
06/10/22 16:050.6600.120<0.120mg/KgBis(2-ethylhexyl)phthalate
06/10/22 16:050.6600.109<0.109mg/Kg4-Bromophenyl phenyl ether
06/10/22 16:050.3300.113<0.113mg/KgButyl benzyl phthalate
06/10/22 16:050.6600.092<0.092mg/Kg4-Chloro-3-methylphenol
06/10/22 16:050.3300.112<0.112mg/Kg4-Chloroaniline
06/10/22 16:050.6600.116<0.116mg/Kg2-Chloronaphthalene
06/10/22 16:050.6600.098<0.098mg/Kg2-Chlorophenol
06/10/22 16:051.000.126<0.126mg/Kg4-Chlorophenyl phenyl ether
06/10/22 16:050.6600.142<0.142mg/KgChrysene
06/10/22 16:050.6600.230<0.230mg/KgDibenz(a,h)anthracene
06/10/22 16:050.6600.119<0.119mg/KgDibenzofuran
06/10/22 16:050.6600.094<0.094mg/Kg1,2-Dichlorobenzene
06/10/22 16:050.6600.097<0.097mg/Kg1,3-Dichlorobenzene
Page 8 of 17Date:06/17/2022 01:48 PM
Page 22 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Semivolatile Organic Compounds - GC/MS
8270E
V19929QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V19797
Associated Lab Samples: 91571
LRB-V19797 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 16:050.3300.097<0.097mg/Kg1,4-Dichlorobenzene
06/10/22 16:050.6600.147<0.147mg/Kg3,3'-Dichlorobenzidine
06/10/22 16:050.6600.095<0.095mg/Kg2,4-Dichlorophenol
06/10/22 16:050.6600.180<0.180mg/KgDiethyl phthalate
06/10/22 16:050.6600.174<0.174mg/KgDimethyl phthalate
06/10/22 16:050.3300.108<0.108mg/Kg2,4-Dimethylphenol
06/10/22 16:050.6600.107<0.107mg/KgDi-n-butyl phthalate
06/10/22 16:051.500.240<0.240mg/Kg4,6-Dinitro-2-methylphenol
06/10/22 16:051.500.520<0.520mg/Kg2,4-Dinitrophenol
06/10/22 16:050.6600.096<0.096mg/Kg2,4-Dinitrotoluene
06/10/22 16:050.6600.108<0.108mg/Kg2,6-Dinitrotoluene
06/10/22 16:050.3300.143<0.143mg/KgDi-n-Octyl Phthalate
06/10/22 16:050.6600.123<0.123mg/KgFluoranthene
06/10/22 16:050.6600.128<0.128mg/KgFluorene
06/10/22 16:050.6600.106<0.106mg/KgHexachlorobenzene
06/10/22 16:050.6600.097<0.097mg/KgHexachlorobutadiene
06/10/22 16:050.6600.157<0.157mg/KgHexachlorocyclopentadiene
06/10/22 16:050.6600.079<0.079mg/KgHexachloroethane
06/10/22 16:050.6600.179<0.179mg/KgIndeno(1,2,3-cd)pyrene
06/10/22 16:050.6600.191<0.191mg/KgIsophorone
06/10/22 16:050.6600.106<0.106mg/Kg1-Methylnaphthalene
06/10/22 16:050.6600.100<0.100mg/Kg2-Methylnaphthalene
06/10/22 16:050.6600.097<0.097mg/Kg2-Methylphenol
06/10/22 16:050.6600.084<0.084mg/Kg3&4 Methylphenol
06/10/22 16:050.6600.144<0.144mg/KgNaphthalene
06/10/22 16:050.6600.096<0.096mg/Kg2-Nitroaniline
06/10/22 16:050.6600.120<0.120mg/Kg3-Nitroaniline
Page 9 of 17Date:06/17/2022 01:48 PM
Page 23 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Semivolatile Organic Compounds - GC/MS
8270E
V19929QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V19797
Associated Lab Samples: 91571
LRB-V19797 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 16:050.3300.093<0.093mg/Kg4-Nitroaniline
06/10/22 16:050.3300.116<0.116mg/KgNitrobenzene
06/10/22 16:050.6600.088<0.088mg/Kg2-Nitrophenol
06/10/22 16:050.6600.117<0.117mg/Kg4-Nitrophenol
06/10/22 16:050.6600.263<0.263mg/KgN-Nitrosodimethylamine
06/10/22 16:050.6600.181<0.181mg/KgN-Nitrosodiphenylamine
06/10/22 16:050.6600.118<0.118mg/KgN-Nitroso-di-n-propylamine
06/10/22 16:051.000.347<0.347mg/KgPentachlorophenol
06/10/22 16:050.6600.208<0.208mg/KgPhenanthrene
06/10/22 16:050.6600.112<0.112mg/KgPhenol
06/10/22 16:050.6600.134<0.134mg/KgPyrene
06/10/22 16:050.3300.079<0.079mg/KgPyridine
06/10/22 16:050.6600.107<0.107mg/Kg1,2,4-Trichlorobenzene
06/10/22 16:050.6600.096<0.096mg/Kg2,4,5-Trichlorophenol
06/10/22 16:050.6600.096<0.096mg/Kg2,4,6-Trichlorophenol
06/10/22 16:052-Fluorobiphenyl (S)71.2 44-115
06/10/22 16:052-Fluorophenol (S)71.1 35-115
06/10/22 16:05Nitrobenzene-d5 (S)63.4 37-122
06/10/22 16:054-Terphenyl-d14 (S)80.8 54-127
06/10/22 16:052,4,6-Tribromophenol (S)70.8 39-132
06/10/22 16:05Phenol-d5 (S)66.0 34-121
LCS-V19797 LCSD-V19797Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
1.48 88.693.41.561.67mg/KgAcenaphthene 40-123 5.2 20
Page 10 of 17Date:06/17/2022 01:48 PM
Page 24 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Semivolatile Organic Compounds - GC/MS
8270E
V19929QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V19797
LCS-V19797 LCSD-V19797Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
1.47 88.091.01.521.67mg/KgAcenaphthylene 32-132 3.3 20
2.02 1211272.121.67mg/KgAniline 12-197 4.8 20
1.50 89.894.61.581.67mg/KgAnthracene 47-123 5.1 20
1.52 91.092.81.551.67mg/KgBenzo(a)anthracene 49-126 1.9 20
1.77 1061101.841.67mg/KgBenzo(a)pyrene 45-129 3.8 20
1.66 99.41011.681.67mg/KgBenzo(b)fluoranthene 45-132 1.1 20
1.53 91.693.41.561.67mg/KgBenzo(g,h,i)perylene 43-134 1.9 20
1.59 95.295.21.591.67mg/KgBenzo(k)fluoranthene 47-132 0.0 20
1.24 74.277.21.291.67mg/KgBenzoic Acid 10-83 3.9 20
1.45 86.891.61.531.67mg/KgBenzyl alcohol 29-122 5.3 20
1.30 77.881.41.361.67mg/KgBis(2-Chloroethoxy)methane 36-121 4.5 20
1.29 77.280.21.341.67mg/KgBis(2-Chloroethyl)ether 31-120 3.8 20
1.42 85.087.41.461.67mg/KgBis(2-Chloroisopropyl)ether 33-131 2.7 20
1.57 94.095.81.601.67mg/KgBis(2-ethylhexyl)phthalate 51-133 1.8 20
1.50 89.894.01.571.67mg/Kg4-Bromophenyl phenyl ether 46-124 4.5 20
1.61 96.497.61.631.67mg/KgButyl benzyl phthalate 48-132 1.2 20
1.30 77.881.41.361.67mg/Kg4-Chloro-3-methylphenol 45-122 4.5 20
1.15 68.870.01.171.67mg/Kg4-Chloroaniline 17-106 1.7 20
1.45 86.891.61.531.67mg/Kg2-Chloronaphthalene 41-114 5.3 20
1.36 81.488.01.471.67mg/Kg2-Chlorophenol 34-121 7.7 20
1.47 88.091.61.531.67mg/Kg4-Chlorophenyl phenyl ether 45-121 4.0 20
1.54 92.294.61.581.67mg/KgChrysene 50-124 2.5 20
1.21 72.473.01.221.67mg/KgDibenz(a,h)anthracene 45-134 0.8 20
1.46 87.491.01.521.67mg/KgDibenzofuran 44-120 4.0 20
1.23 73.678.41.311.67mg/Kg1,2-Dichlorobenzene 33-117 6.2 20
1.21 72.476.61.281.67mg/Kg1,3-Dichlorobenzene 30-115 5.6 20
Page 11 of 17Date:06/17/2022 01:48 PM
Page 25 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Semivolatile Organic Compounds - GC/MS
8270E
V19929QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V19797
LCS-V19797 LCSD-V19797Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
1.20 71.874.81.251.67mg/Kg1,4-Dichlorobenzene 31-115 4.0 20
0.975 58.362.21.041.67mg/Kg3,3'-Dichlorobenzidine 22-121 6.4 20
1.25 74.880.21.341.67mg/Kg2,4-Dichlorophenol 40-122 6.9 20
1.53 91.695.21.591.67mg/KgDiethyl phthalate 50-124 3.8 20
1.51 90.494.01.571.67mg/KgDimethyl phthalate 48-124 3.8 20
1.43 85.689.81.501.67mg/Kg2,4-Dimethylphenol 30-127 4.7 20
1.68 1011041.741.67mg/KgDi-n-butyl phthalate 51-128 3.5 20
1.21 72.474.81.251.67mg/Kg4,6-Dinitro-2-methylphenol 29-132 3.2 20
1.28 76.677.21.291.67mg/Kg2,4-Dinitrophenol 27-129 0.7 20
1.59 95.297.61.631.67mg/Kg2,4-Dinitrotoluene 48-126 2.4 20
1.59 95.296.41.611.67mg/Kg2,6-Dinitrotoluene 46-124 1.2 20
1.62 97.099.41.661.67mg/KgDi-n-Octyl Phthalate 45-140 2.4 20
1.50 89.893.41.561.67mg/KgFluoranthene 50-127 3.9 20
1.52 91.093.41.561.67mg/KgFluorene 43-125 2.5 20
1.48 88.693.41.561.67mg/KgHexachlorobenzene 45-122 5.2 20
1.18 70.677.21.291.67mg/KgHexachlorobutadiene 32-123 8.9 20
1.30 77.879.61.331.67mg/KgHexachlorocyclopentadiene 32-117 2.2 20
1.17 70.072.41.211.67mg/KgHexachloroethane 28-117 3.3 20
1.52 91.091.01.521.67mg/KgIndeno(1,2,3-cd)pyrene 45-133 0.0 20
1.17 70.074.81.251.67mg/KgIsophorone 30-122 6.6 20
1.23 73.678.41.311.67mg/Kg1-Methylnaphthalene 40-119 6.2 20
1.20 71.876.01.271.67mg/Kg2-Methylnaphthalene 38-122 5.6 20
1.44 86.290.41.511.67mg/Kg2-Methylphenol 32-122 4.7 20
1.22 73.077.81.301.67mg/Kg3&4 Methylphenol 34-119 6.3 20
1.21 72.476.61.281.67mg/KgNaphthalene 35-123 5.6 20
1.48 88.691.61.531.67mg/Kg2-Nitroaniline 44-127 3.3 20
Page 12 of 17Date:06/17/2022 01:48 PM
Page 26 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Semivolatile Organic Compounds - GC/MS
8270E
V19929QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3546
QC Prep:V19797
LCS-V19797 LCSD-V19797Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
1.28 76.680.21.341.67mg/Kg3-Nitroaniline 33-119 4.5 20
1.41 84.486.81.451.67mg/Kg4-Nitroaniline 63-147 2.7 20
1.21 72.475.41.261.67mg/KgNitrobenzene 34-122 4.0 20
1.19 71.274.81.251.67mg/Kg2-Nitrophenol 36-123 4.9 20
1.54 92.294.61.581.67mg/Kg4-Nitrophenol 30-132 2.5 20
1.15 68.871.81.201.67mg/KgN-Nitrosodimethylamine 10-146 4.2 20
1.79 1071131.881.67mg/KgN-Nitrosodiphenylamine 38-127 4.9 20
1.32 79.082.61.381.67mg/KgN-Nitroso-di-n-propylamine 36-120 4.4 20
1.61 96.499.41.661.67mg/KgPentachlorophenol 25-133 3.0 20
1.50 89.894.61.581.67mg/KgPhenanthrene 50-121 5.1 20
1.37 82.088.01.471.67mg/KgPhenol 34-121 7.0 20
1.56 93.497.61.631.67mg/KgPyrene 47-127 4.3 20
0.796 47.649.00.8191.67mg/KgPyridine 10-80 2.8 20
1.15 68.873.61.231.67mg/Kg1,2,4-Trichlorobenzene 34-118 6.7 20
1.46 87.488.01.471.67mg/Kg2,4,5-Trichlorophenol 41-124 0.6 20
1.45 86.890.41.511.67mg/Kg2,4,6-Trichlorophenol 39-126 4.0 20
85.691.02-Fluorobiphenyl (S)44-115
84.990.62-Fluorophenol (S)35-115
67.072.4Nitrobenzene-d5 (S)37-122
94.097.04-Terphenyl-d14 (S)54-127
93.395.72,4,6-Tribromophenol (S)39-132
81.687.3Phenol-d5 (S)34-121
Page 13 of 17Date:06/17/2022 01:48 PM
Page 27 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Massachusetts EPH
MADEP-EPH
V19941QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAEPH (Prep)
QC Prep:V19940
Associated Lab Samples: 91571
LRB-V19940 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/14/22 16:4550.09.20<9.20mg/KgAliphatic C9-C18
06/14/22 16:4550.012.2<12.2mg/KgAliphatic C19-C36
06/14/22 16:4550.014.2<14.2mg/KgAromatic C11-C22
06/14/22 16:452-Fluorobiphenyl (S)82.5 40-140
06/14/22 16:452-Bromonaphthalene (S)89.0 40-140
06/14/22 16:45Chlorooctadecane (S)81.5 40-140
06/14/22 16:45OTP Surrogate (S)70.5 40-140
LCS-V19940Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
85.051.260.2mg/KgAliphatic C9-C18 40-140
10080.480.2mg/KgAliphatic C19-C36 40-140
88.3151171mg/KgAromatic C11-C22 40-140
85.22-Fluorobiphenyl (S)40-140
92.52-Bromonaphthalene (S)40-140
84.5Chlorooctadecane (S)40-140
79.1OTP Surrogate (S)40-140
V 91823-MS-V19940 V 91823-MSD-V19940Matrix Spike & Matrix Spike Duplicate
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
MSD
%Rec RPD
45.4 75.555.160.360.1<9.22mg/KgAliphatic C9-C18 91.3 40-140 19.3 50
81.0 10194.780.480.1<12.2mg/KgAliphatic C19-C36 118 40-140 15.5 50
183 108148171170<14.2mg/KgAromatic C11-C22 86.5 40-140 21.1 50
92.22-Fluorobiphenyl (S)82.3 40-140
Page 14 of 17Date:06/17/2022 01:48 PM
Page 28 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Massachusetts EPH
MADEP-EPH
V19941QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAEPH (Prep)
QC Prep:V19940
V 91823-MS-V19940 V 91823-MSD-V19940Matrix Spike & Matrix Spike Duplicate
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
MSD
%Rec RPD
98.72-Bromonaphthalene (S)76.6 40-140
82.0Chlorooctadecane (S)86.0 40-140
88.0OTP Surrogate (S)74.1 40-140
Page 15 of 17Date:06/17/2022 01:48 PM
Page 29 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
QC Prep Batch Method:
Massachusetts VPH
MADEP-VPH
V19767QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAVPH (Prep)
QC Prep:V19766
Associated Lab Samples: 91571
LRB-V19766 Matrix: SOLLab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/09/22 10:128.001.22<1.22mg/KgAliphatic C5-C8
06/09/22 10:128.004.56<4.56mg/KgAliphatic C9-C12
06/09/22 10:128.000.624<0.624mg/KgAromatic C9-C10
06/09/22 10:122,5-Dibromotoluene (FID) (S)126 70-130
06/09/22 10:122,5-Dibromotoluene (PID) (S)121 70-130
LCS-V19766 LCSD-V19766Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
27.0 84.388.128.232.0mg/KgAliphatic C5-C8 70-130 4.3 50
35.1 11011135.632.0mg/KgAliphatic C9-C12 70-130 1.4 50
12.6 11812113.010.7mg/KgAromatic C9-C10 70-130 3.1 50
1141132,5-Dibromotoluene (FID) (S)70-130
1241222,5-Dibromotoluene (PID) (S)70-130
Page 16 of 17Date:06/17/2022 01:48 PM
Page 30 of 33
Quality Control Data
22-159-0001Report No:
Project Description:
Client ID:CES Group
Creston Superette
Dry Weight Determination
SW-DRYWT
V19811QC Analytical Batch:
Analysis Method:
Analysis Description:
V 91606-DUPDuplicate
Max RPD
Parameter
AnalyzedRPDDUP
Result
Result
Units
20.0 06/13/22 11:150.629.429.2%Moisture
V 91716-DUPDuplicate
Max RPD
Parameter
AnalyzedRPDDUP
Result
Result
Units
20.0 06/13/22 11:151.821.121.5%Moisture
Page 17 of 17Date:06/17/2022 01:48 PM
Page 31 of 33
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:22-159-0001
CES Group
00012
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT-15 15.0C
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Angelo Norvell Date & Time:06/08/2022 10:22:37
Special precautions or instructions included?
Comments:
Page 32 of 33
Page 33 of 33

Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.

6/30/2022
CES Group Greg Hans
274 N. Hwy 16, Ste 300 Denver, NC, 28037
Ref: Analytical Testing
Lab Report Number: 22-159-0000 Client Project Description: Creston Supertte
Dear Greg Hans:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/8/2022 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 32
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202237735State ProgramNorth Carolina
12/31/2022402State ProgramNorth Carolina
07/31/202299012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Page 1 of 1 00016/22-159-0000
Page 2 of 32
Report Number:
Sample Summary Table
Client Project Description:
22-159-0000
Creston Supertte
Lab No Client Sample ID Matrix Date Collected Date Received
06/06/2022 12:45Aqueous 91570 MW-1 06/08/2022 09:00
Page 3 of 32
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
22-159-0000
Report Limit
Project:Creston Supertte
V 91570MW-1
0.217 06/16/2022 13:556010DChromiummg/L 0.002
0.011 06/29/2022 13:146010DLeadmg/L 0.002
J5.93 06/18/2022 06:226200BAcetoneµg/L 1.80
0.585 06/18/2022 06:226200BBenzeneµg/L 0.180
0.834 06/18/2022 06:226200BChloroformµg/L 0.220
0.670 06/18/2022 06:226200Bcis-1,2-Dichloroethene µg/L 0.200
0.509 06/18/2022 06:226200BEthylbenzeneµg/L 0.170
J0.878 06/18/2022 06:226200BMethyl Ethyl Ketone (MEK)µg/L 0.710
5.54 06/18/2022 06:226200BMethyl tert-butyl ether (MTBE)µg/L 0.140
J0.494 06/18/2022 06:226200BMethylene Chloride µg/L 0.330
J0.300 06/18/2022 06:226200Bn-Propylbenzene µg/L 0.190
1.11 06/18/2022 06:226200B1,2,4-Trimethylbenzene µg/L 0.190
J0.358 06/18/2022 06:226200B1,3,5-Trimethylbenzene µg/L 0.180
J0.391 06/18/2022 06:226200Bo-Xylene µg/L 0.210
1.57 06/18/2022 06:226200Bm,p-Xylene µg/L 0.420
J1.96 06/18/2022 06:226200BXylene (Total)µg/L 0.210
Page 4 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Test Results Units MDL MQL By Analytical
Method
Date / Time
Analyzed
DF
<1.00 µg/L 1.00 10.03,3-Dimethyl-1-butanol 1 06/18/22 06:22 6200BJLB
0.217 mg/L 0.002 0.005Chromium 1 06/16/22 13:55 6010DEDV
0.011 mg/L 0.002 0.006Lead 1 06/29/22 13:14 6010DEDV
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 5 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V20136 06/17/22 14:00
5.93 J µg/L 1.80 10.0Acetone 1 06/18/22 06:22 V20140JLB
0.585 µg/L 0.180 0.500Benzene 1 06/18/22 06:22 V20140JLB
<0.210 µg/L 0.210 0.500Bromobenzene 1 06/18/22 06:22 V20140JLB
<0.420 µg/L 0.420 1.00Bromochloromethane 1 06/18/22 06:22 V20140JLB
<0.160 µg/L 0.160 0.500Bromodichloromethane 1 06/18/22 06:22 V20140JLB
<1.50 µg/L 1.50 5.00Bromoform 1 06/18/22 06:22 V20140JLB
<0.280 µg/L 0.280 1.00Bromomethane 1 06/18/22 06:22 V20140JLB
<0.180 µg/L 0.180 0.500n-Butylbenzene 1 06/18/22 06:22 V20140JLB
<0.200 µg/L 0.200 0.500
sec-Butyl benzene 1 06/18/22 06:22 V20140JLB
<0.920 µg/L 0.920 2.00tert-Butyl benzene 1 06/18/22 06:22 V20140JLB
<0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 06/18/22 06:22 V20140JLB
<0.190 µg/L 0.190 0.500Chlorobenzene 1 06/18/22 06:22 V20140JLB
<0.190 µg/L 0.190 0.500Chlorodibromomethane 1 06/18/22 06:22 V20140JLB
<0.430 µg/L 0.430 1.00Chloroethane 1 06/18/22 06:22 V20140JLB
0.834 µg/L 0.220 0.500Chloroform 1 06/18/22 06:22 V20140JLB
<0.220 µg/L 0.220 0.500
Chloromethane 1 06/18/22 06:22 V20140JLB
<0.200 µg/L 0.200 0.5002-Chlorotoluene 1 06/18/22 06:22 V20140JLB
<0.200 µg/L 0.200 0.5004-Chlorotoluene 1 06/18/22 06:22 V20140JLB
<0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 06/18/22 06:22 V20140JLB
<1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 06/18/22 06:22 V20140JLB
<0.230 µg/L 0.230 0.500Dibromomethane 1 06/18/22 06:22 V20140JLB
<0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 06/18/22 06:22 V20140JLB
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 6 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V20136 06/17/22 14:00
<0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 06/18/22 06:22 V20140JLB
<0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 06/18/22 06:22 V20140JLB
<1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 06/18/22 06:22 V20140JLB
<0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 06/18/22 06:22 V20140JLB
<0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 06/18/22 06:22 V20140JLB
<0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 06/18/22 06:22 V20140JLB
0.670 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 06/18/22 06:22 V20140JLB
<0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 06/18/22 06:22 V20140JLB
<0.190 µg/L 0.190 0.500
1,2-Dichloropropane 1 06/18/22 06:22 V20140JLB
<0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 06/18/22 06:22 V20140JLB
<0.210 µg/L 0.210 2.002,2-Dichloropropane 1 06/18/22 06:22 V20140JLB
<0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 06/18/22 06:22 V20140JLB
<0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 06/18/22 06:22 V20140JLB
<0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 06/18/22 06:22 V20140JLB
<42.0 µg/L 42.0 200Ethanol 1 06/18/22 06:22 V20140JLB
0.509 µg/L 0.170 0.500
Ethylbenzene 1 06/18/22 06:22 V20140JLB
<0.059 µg/L 0.059 10.0Ethyl Tertiary Butyl Ether (ETBE)1 06/18/22 06:22 V20140JLB
<0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 06/18/22 06:22 V20140JLB
<0.380 µg/L 0.380 1.002-Hexanone 1 06/18/22 06:22 V20140JLB
<0.180 µg/L 0.180 0.500Isopropylbenzene 1 06/18/22 06:22 V20140JLB
<0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 06/18/22 06:22 V20140JLB
0.878 J µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 06/18/22 06:22 V20140JLB
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 7 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V20136 06/17/22 14:00
5.54 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 06/18/22 06:22 V20140JLB
<0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 06/18/22 06:22 V20140JLB
0.494 J µg/L 0.330 2.00Methylene Chloride 1 06/18/22 06:22 V20140JLB
<0.470 µg/L 0.470 1.00Naphthalene 1 06/18/22 06:22 V20140JLB
0.300 J µg/L 0.190 0.500n-Propylbenzene 1 06/18/22 06:22 V20140JLB
<0.220 µg/L 0.220 0.500Styrene 1 06/18/22 06:22 V20140JLB
<1.60 µg/L 1.60 10.0tert-Butyl Alcohol (TBA)1 06/18/22 06:22 V20140JLB
<0.350 µg/L 0.350 10.0tert-Butyl formate (TBF)1 06/18/22 06:22 V20140JLB
<1.90 µg/L 1.90 10.0
tert-Amyl Alcohol (TAA)1 06/18/22 06:22 V20140JLB
<0.280 µg/L 0.280 10.0tert-Amyl Methyl Ether (TAME)1 06/18/22 06:22 V20140JLB
<0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 06/18/22 06:22 V20140JLB
<0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 06/18/22 06:22 V20140JLB
<0.220 µg/L 0.220 0.500Tetrachloroethene 1 06/18/22 06:22 V20140JLB
<0.220 µg/L 0.220 0.500Toluene 1 06/18/22 06:22 V20140JLB
<0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 06/18/22 06:22 V20140JLB
<0.310 µg/L 0.310 0.500
1,2,4-Trichlorobenzene 1 06/18/22 06:22 V20140JLB
<0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 06/18/22 06:22 V20140JLB
<0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 06/18/22 06:22 V20140JLB
<0.180 µg/L 0.180 0.500Trichloroethene 1 06/18/22 06:22 V20140JLB
<0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 06/18/22 06:22 V20140JLB
<0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 06/18/22 06:22 V20140JLB
1.11 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 06/18/22 06:22 V20140JLB
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 8 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V20136 06/17/22 14:00
0.358 J µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 06/18/22 06:22 V20140JLB
<1.00 µg/L 1.00 5.00Vinyl Acetate 1 06/18/22 06:22 V20140JLB
<0.170 µg/L 0.170 0.500Vinyl Chloride 1 06/18/22 06:22 V20140JLB
0.391 J µg/L 0.210 0.500o-Xylene 1 06/18/22 06:22 V20140JLB
1.57 µg/L 0.420 1.00m,p-Xylene 1 06/18/22 06:22 V20140JLB
1.96 J µg/L 0.210 0.500Xylene (Total)1 06/18/22 06:22 V20140
Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%06/18/22 06:221 JLB V20140
Surrogate: Dibromofluoromethane 108 Limits: 70-130%06/18/22 06:221 JLB V20140
Surrogate: 1,2-Dichloroethane - d4 103 Limits: 70-130%06/18/22 06:221 JLB V20140
Surrogate: Toluene-d8 108 Limits: 70-130%06/18/22 06:221 JLB V20140
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V19827 06/13/22 09:40
<7.26 µg/L 7.26 10.2Acenaphthene 1 06/13/22 23:08 V20090JC1
<7.08 µg/L 7.08 20.4Acenaphthylene 1 06/13/22 23:08 V20090JC1
<6.70 µg/L 6.70 10.2Anthracene 1 06/13/22 23:08 V20090JC1
<5.18 µg/L 5.18 10.2Benzidine 1 06/13/22 23:08 V20090JC1
<6.78 µg/L 6.78 10.2Benzo(a)anthracene 1 06/13/22 23:08 V20090JC1
<4.76 µg/L 4.76 10.2Benzo(a)pyrene 1 06/13/22 23:08 V20090JC1
<4.61 µg/L 4.61 10.2
Benzo(b)fluoranthene 1 06/13/22 23:08 V20090JC1
<4.32 µg/L 4.32 10.2Benzo(g,h,i)perylene 1 06/13/22 23:08 V20090JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 9 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V19827 06/13/22 09:40
<4.96 µg/L 4.96 10.2Benzo(k)fluoranthene 1 06/13/22 23:08 V20090JC1
<11.7 M µg/L 11.7 51.0Benzoic Acid 1 06/13/22 23:08 V20090JC1
<8.77 µg/L 8.77 10.2Benzyl alcohol 1 06/13/22 23:08 V20090JC1
<5.78 µg/L 5.78 10.2Bis(2-Chloroethoxy)methane 1 06/13/22 23:08 V20090JC1
<7.45 µg/L 7.45 10.2Bis(2-Chloroethyl)ether 1 06/13/22 23:08 V20090JC1
<6.72 µg/L 6.72 10.2Bis(2-Chloroisopropyl)ether 1 06/13/22 23:08 V20090JC1
<8.98 µg/L 8.98 10.2Bis(2-ethylhexyl)phthalate 1 06/13/22 23:08 V20090JC1
<6.39 µg/L 6.39 20.44-Bromophenyl phenyl ether 1 06/13/22 23:08 V20090JC1
<4.62 µg/L 4.62 10.2
Butyl benzyl phthalate 1 06/13/22 23:08 V20090JC1
<5.33 µg/L 5.33 10.24-Chloro-3-methylphenol 1 06/13/22 23:08 V20090JC1
<7.53 M µg/L 7.53 20.42-Chloronaphthalene 1 06/13/22 23:08 V20090JC1
<6.71 µg/L 6.71 10.22-Chlorophenol 1 06/13/22 23:08 V20090JC1
<7.13 µg/L 7.13 20.44-Chlorophenyl phenyl ether 1 06/13/22 23:08 V20090JC1
<5.49 µg/L 5.49 10.2Chrysene 1 06/13/22 23:08 V20090JC1
<6.13 µg/L 6.13 20.4Dibenz(a,h)anthracene 1 06/13/22 23:08 V20090JC1
<5.18 µg/L 5.18 20.4
Dibenzofuran 1 06/13/22 23:08 V20090JC1
<6.03 µg/L 6.03 10.21,2-Dichlorobenzene 1 06/13/22 23:08 V20090JC1
<5.95 µg/L 5.95 10.21,3-Dichlorobenzene 1 06/13/22 23:08 V20090JC1
<6.03 µg/L 6.03 10.21,4-Dichlorobenzene 1 06/13/22 23:08 V20090JC1
<6.73 µg/L 6.73 10.23,3'-Dichlorobenzidine 1 06/13/22 23:08 V20090JC1
<5.65 µg/L 5.65 10.22,4-Dichlorophenol 1 06/13/22 23:08 V20090JC1
<9.54 µg/L 9.54 20.4Diethyl phthalate 1 06/13/22 23:08 V20090JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 10 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V19827 06/13/22 09:40
<7.98 µg/L 7.98 10.2Dimethyl phthalate 1 06/13/22 23:08 V20090JC1
<11.2 µg/L 11.2 20.42,4-Dimethylphenol 1 06/13/22 23:08 V20090JC1
<7.50 µg/L 7.50 10.2Di-n-butyl phthalate 1 06/13/22 23:08 V20090JC1
<10.1 µg/L 10.1 30.64,6-Dinitro-2-methylphenol 1 06/13/22 23:08 V20090JC1
<10.9 µg/L 10.9 30.62,4-Dinitrophenol 1 06/13/22 23:08 V20090JC1
<5.30 µg/L 5.30 10.22,4-Dinitrotoluene 1 06/13/22 23:08 V20090JC1
<6.02 µg/L 6.02 20.42,6-Dinitrotoluene 1 06/13/22 23:08 V20090JC1
<5.11 µg/L 5.11 10.2Di-n-Octyl Phthalate 1 06/13/22 23:08 V20090JC1
<6.15 µg/L 6.15 10.2
Fluoranthene 1 06/13/22 23:08 V20090JC1
<7.42 µg/L 7.42 10.2Fluorene 1 06/13/22 23:08 V20090JC1
<5.87 µg/L 5.87 20.4Hexachlorobenzene 1 06/13/22 23:08 V20090JC1
<6.00 µg/L 6.00 20.4Hexachlorobutadiene 1 06/13/22 23:08 V20090JC1
<6.02 µg/L 6.02 20.4Hexachlorocyclopentadiene 1 06/13/22 23:08 V20090JC1
<5.32 M µg/L 5.32 10.2Hexachloroethane 1 06/13/22 23:08 V20090JC1
<6.32 µg/L 6.32 10.2Indeno(1,2,3-cd)pyrene 1 06/13/22 23:08 V20090JC1
<6.84 µg/L 6.84 10.2
Isophorone 1 06/13/22 23:08 V20090JC1
<1.12 µg/L 1.12 10.21-Methylnaphthalene 1 06/13/22 23:08 V20090JC1
<7.06 µg/L 7.06 10.22-Methylnaphthalene 1 06/13/22 23:08 V20090JC1
<8.04 µg/L 8.04 10.2Naphthalene 1 06/13/22 23:08 V20090JC1
<8.04 µg/L 8.04 10.2Nitrobenzene 1 06/13/22 23:08 V20090JC1
<5.60 µg/L 5.60 10.22-Nitrophenol 1 06/13/22 23:08 V20090JC1
<2.87 µg/L 2.87 10.24-Nitrophenol 1 06/13/22 23:08 V20090JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 11 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
625.1 (Prep)
625.1 Prep Batch(es):V19827 06/13/22 09:40
<11.1 µg/L 11.1 20.4N-Nitrosodiphenylamine 1 06/13/22 23:08 V20090JC1
<8.26 µg/L 8.26 20.4N-Nitroso-di-n-propylamine 1 06/13/22 23:08 V20090JC1
<9.92 µg/L 9.92 51.0Pentachlorophenol 1 06/13/22 23:08 V20090JC1
<6.47 µg/L 6.47 10.2Phenanthrene 1 06/13/22 23:08 V20090JC1
<2.92 µg/L 2.92 10.2Phenol 1 06/13/22 23:08 V20090JC1
<5.53 µg/L 5.53 10.2Pyrene 1 06/13/22 23:08 V20090JC1
<6.38 M µg/L 6.38 10.21,2,4-Trichlorobenzene 1 06/13/22 23:08 V20090JC1
<6.42 µg/L 6.42 20.42,4,6-Trichlorophenol 1 06/13/22 23:08 V20090JC1
625.1Surrogate: Phenol-d5 19.4 Limits: 10-63%06/13/22 23:081 JC1
Surrogate: 2-Fluorobiphenyl 54.1 Limits: 49-118%06/13/22 23:081 JC1 V20090
Surrogate: 2-Fluorophenol 27.1 Limits: 22-84%06/13/22 23:081 JC1 V20090
Surrogate: Nitrobenzene-d5 45.7 Limits: 43-123%06/13/22 23:081 JC1 V20090
Surrogate: 4-Terphenyl-d14 80.2 Limits: 49-151%06/13/22 23:081 JC1 V20090
Surrogate: 2,4,6-Tribromophenol 68.3 Limits: 31-144%06/13/22 23:081 JC1 V20090
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
EPA-504.1(PREP)
EPA-504.1 Prep Batch(es):V20049 06/17/22 11:00
<0.00345 µg/L 0.00345 0.02091,2-Dibromoethane 1 06/17/22 12:32 V20059JC1
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 12 of 32
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 28037
22-159-0000
00012
CES Group
274 N. Hwy 16, Ste 300
Greg Hans
Denver
Received : 06/08/2022
Creston Supertte
Report Date : 06/30/2022
Sample ID :
Lab No :
Sampled:MW-1
91570 Matrix:
6/6/2022 12:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
MAEPH (Prep)
MADEP-EPH Prep Batch(es):V19876 06/14/22 09:14
<28.2 µg/L 28.2 350Aliphatic C9-C18 1 06/17/22 14:50 V20086JLK
<124 µg/L 124 500Aliphatic C19-C36 1 06/17/22 14:50 V20086JLK
<61.2 µg/L 61.2 250Aromatic C11-C22 1 06/17/22 14:50 V20086JLK
MADEP-EPHSurrogate: 2-Bromonaphthalene 87.3 Limits: 40-140%06/17/22 14:501 JLK
MADEP-EPHSurrogate: Chlorooctadecane 59.0 Limits: 40-140%06/17/22 14:501 JLK
MADEP-EPHSurrogate: OTP Surrogate 59.5 Limits: 40-140%06/17/22 14:501 JLK
Surrogate: 2-Fluorobiphenyl 83.3 Limits: 40-140%06/17/22 14:501 JLK V20086
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
MAVPH (Prep)
MADEP-VPH Prep Batch(es):V19793 06/10/22 08:00
<11.5 µg/L 11.5 50.0
Aliphatic C5-C8 1 06/10/22 13:38 V19794TBL
<25.8 µg/L 25.8 50.0Aliphatic C9-C12 1 06/10/22 13:38 V19794TBL
<4.02 µg/L 4.02 50.0Aromatic C9-C10 1 06/10/22 13:38 V19794TBL
MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)105 Limits: 70-130%06/10/22 13:381 TBL
MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)115 Limits: 70-130%06/10/22 13:381 TBL
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQLMinimum valueM
Page 13 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Metals Analysis
6010D
V20014QC Analytical Batch(es):
Analysis Method:
Analysis Description:
3005A
QC Prep:V19802
Associated Lab Samples: 91570
LRB-V19802 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
06/16/22 13:360.0050.002<0.002mg/LChromium
06/16/22 13:360.0060.002<0.002mg/LLead
LCS-V19802Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
1101.101.00mg/LChromium 80-120
1090.1090.100mg/LLead 80-120
V 91178-MS-V19802 V 91178-MSD-V19802Matrix Spike & Matrix Spike Duplicate
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
MSD
%Rec RPD
1.11 1111.101.001.00< 0.002mg/LChromium 110 75-125 0.9 20.0
0.113 1110.1100.1000.1000.002mg/LLead 108 75-125 2.6 20.0
V 91178-PDS-V19802Post Digestion Spike
Parameter
Analyzed%
Recovery
PDS
ResultUnits
06/16/22 14:371082.69mg/LChromium
06/16/22 14:371050.263mg/LLead
Page 1 of 16Date:06/30/2022 08:19 AM
Page 14 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V20140QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V20136
Associated Lab Samples: 91570
LRB-V20136 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/18/22 02:3010.01.80<1.80µg/LAcetone
06/18/22 02:300.5000.180<0.180µg/LBenzene
06/18/22 02:300.5000.210<0.210µg/LBromobenzene
06/18/22 02:301.000.420<0.420µg/LBromochloromethane
06/18/22 02:300.5000.160<0.160µg/LBromodichloromethane
06/18/22 02:305.001.50<1.50µg/LBromoform
06/18/22 02:301.000.280<0.280µg/LBromomethane
06/18/22 02:300.5000.180<0.180µg/Ln-Butylbenzene
06/18/22 02:300.5000.200<0.200µg/Lsec-Butyl benzene
06/18/22 02:302.000.920<0.920µg/Ltert-Butyl benzene
06/18/22 02:300.5000.180<0.180µg/LCarbon Tetrachloride
06/18/22 02:300.5000.190<0.190µg/LChlorobenzene
06/18/22 02:300.5000.190<0.190µg/LChlorodibromomethane
06/18/22 02:301.000.430<0.430µg/LChloroethane
06/18/22 02:300.5000.220<0.220µg/LChloroform
06/18/22 02:300.5000.220<0.220µg/LChloromethane
06/18/22 02:300.5000.200<0.200µg/L2-Chlorotoluene
06/18/22 02:300.5000.200<0.200µg/L4-Chlorotoluene
06/18/22 02:300.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE)
06/18/22 02:302.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane
06/18/22 02:300.5000.230<0.230µg/LDibromomethane
06/18/22 02:300.5000.220<0.220µg/L1,2-Dichlorobenzene
06/18/22 02:300.5000.190<0.190µg/L1,3-Dichlorobenzene
06/18/22 02:300.5000.210<0.210µg/L1,4-Dichlorobenzene
06/18/22 02:305.001.20<1.20µg/LDichlorodifluoromethane
06/18/22 02:300.5000.240<0.240µg/L1,1-Dichloroethane
06/18/22 02:300.5000.150<0.150µg/L1,2-Dichloroethane
Page 2 of 16Date:06/30/2022 08:19 AM
Page 15 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V20140QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V20136
Associated Lab Samples: 91570
LRB-V20136 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/18/22 02:300.5000.150<0.150µg/L1,1-Dichloroethene
06/18/22 02:300.5000.200<0.200µg/Lcis-1,2-Dichloroethene
06/18/22 02:300.5000.180<0.180µg/Ltrans-1,2-Dichloroethene
06/18/22 02:300.5000.190<0.190µg/L1,2-Dichloropropane
06/18/22 02:300.5000.130<0.130µg/L1,3-Dichloropropane
06/18/22 02:302.000.210<0.210µg/L2,2-Dichloropropane
06/18/22 02:300.5000.200<0.200µg/L1,1-Dichloropropene
06/18/22 02:300.5000.210<0.210µg/Lcis-1,3-Dichloropropene
06/18/22 02:300.5000.150<0.150µg/Ltrans-1,3-Dichloropropene
06/18/22 02:3020042.0<42.0µg/LEthanol
06/18/22 02:300.5000.170<0.170µg/LEthylbenzene
06/18/22 02:3010.00.059<0.059µg/LEthyl Tertiary Butyl Ether (ETBE)
06/18/22 02:303.000.350<0.350µg/LHexachlorobutadiene
06/18/22 02:301.000.380<0.380µg/L2-Hexanone
06/18/22 02:300.5000.180<0.180µg/LIsopropylbenzene
06/18/22 02:300.5000.089<0.089µg/L4-Isopropyl toluene
06/18/22 02:305.000.710<0.710µg/LMethyl Ethyl Ketone (MEK)
06/18/22 02:301.000.140<0.140µg/LMethyl tert-butyl ether (MTBE)
06/18/22 02:301.000.078<0.078µg/L4-Methyl-2-Pentanone
06/18/22 02:302.000.330<0.330µg/LMethylene Chloride
06/18/22 02:301.000.470<0.470µg/LNaphthalene
06/18/22 02:300.5000.190<0.190µg/Ln-Propylbenzene
06/18/22 02:300.5000.220<0.220µg/LStyrene
06/18/22 02:3010.01.60<1.60µg/Ltert-Butyl Alcohol (TBA)
06/18/22 02:3010.00.350<0.350µg/Ltert-Butyl formate (TBF)
06/18/22 02:3010.01.90<1.90µg/Ltert-Amyl Alcohol (TAA)
06/18/22 02:3010.00.280<0.280µg/Ltert-Amyl Methyl Ether (TAME)
Page 3 of 16Date:06/30/2022 08:19 AM
Page 16 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V20140QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V20136
Associated Lab Samples: 91570
LRB-V20136 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/18/22 02:300.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane
06/18/22 02:300.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane
06/18/22 02:300.5000.220<0.220µg/LTetrachloroethene
06/18/22 02:300.5000.220<0.220µg/LToluene
06/18/22 02:300.5000.380<0.380µg/L1,2,3-Trichlorobenzene
06/18/22 02:300.5000.310<0.310µg/L1,2,4-Trichlorobenzene
06/18/22 02:300.5000.160<0.160µg/L1,1,1-Trichloroethane
06/18/22 02:300.5000.096<0.096µg/L1,1,2-Trichloroethane
06/18/22 02:300.5000.180<0.180µg/LTrichloroethene
06/18/22 02:300.5000.180<0.180µg/LTrichlorofluoromethane
06/18/22 02:300.5000.270<0.270µg/L1,2,3-Trichloropropane
06/18/22 02:300.5000.190<0.190µg/L1,2,4-Trimethylbenzene
06/18/22 02:300.5000.180<0.180µg/L1,3,5-Trimethylbenzene
06/18/22 02:305.001.00<1.00µg/LVinyl Acetate
06/18/22 02:300.5000.170<0.170µg/LVinyl Chloride
06/18/22 02:300.5000.210<0.210µg/Lo-Xylene
06/18/22 02:301.000.420<0.420µg/Lm,p-Xylene
06/18/22 02:3010.01.00<1.00µg/L3,3-Dimethyl-1-butanol
06/18/22 02:304-Bromofluorobenzene (S)102 70-130
06/18/22 02:30Dibromofluoromethane (S)106 70-130
06/18/22 02:301,2-Dichloroethane - d4 (S)102 70-130
06/18/22 02:30Toluene-d8 (S)108 70-130
Page 4 of 16Date:06/30/2022 08:19 AM
Page 17 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V20140QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V20136
LCS-V20136 LCSD-V20136Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
37.3 93.290.736.340.0µg/LAcetone 40-160 2.7 20.0
18.9 94.597.519.520.0µg/LBenzene 70-130 3.1 20.0
21.2 10610821.620.0µg/LBromobenzene 70-130 1.8 20.0
20.1 10197.519.520.0µg/LBromochloromethane 70-130 3.0 20.0
21.8 10910621.220.0µg/LBromodichloromethane 70-130 2.7 20.0
22.7 11410921.820.0µg/LBromoform 70-130 4.0 20.0
17.9 89.592.018.420.0µg/LBromomethane 60-140 2.7 20.0
20.9 10510721.420.0µg/Ln-Butylbenzene 70-130 2.3 20.0
22.0 11011222.420.0µg/Lsec-Butyl benzene 70-130 1.8 20.0
21.6 10810921.820.0µg/Ltert-Butyl benzene 70-130 0.9 20.0
20.9 10510520.920.0µg/LCarbon Tetrachloride 70-130 0.0 20.0
20.6 10310420.720.0µg/LChlorobenzene 70-130 0.4 20.0
21.0 10510120.120.0µg/LChlorodibromomethane 70-130 4.3 20.0
17.4 87.089.517.920.0µg/LChloroethane 60-140 2.8 20.0
19.5 97.598.519.720.0µg/LChloroform 70-130 1.0 20.0
17.8 89.089.017.820.0µg/LChloromethane 60-140 0.0 20.0
21.7 10910921.820.0µg/L2-Chlorotoluene 70-130 0.4 20.0
21.2 10610721.320.0µg/L4-Chlorotoluene 70-130 0.4 20.0
19.6 98.099.519.920.0µg/LDi-Isopropyl Ether (DIPE)70-130 1.5 20.0
24.5 12311222.420.0µg/L1,2-Dibromo-3-Chloropropane 70-130 8.9 20.0
19.9 99.598.019.620.0µg/LDibromomethane 70-130 1.5 20.0
22.5 11311322.620.0µg/L1,2-Dichlorobenzene 70-130 0.4 20.0
21.6 10811122.220.0µg/L1,3-Dichlorobenzene 70-130 2.7 20.0
21.9 11011322.520.0µg/L1,4-Dichlorobenzene 70-130 2.7 20.0
18.3 91.592.518.520.0µg/LDichlorodifluoromethane 60-140 1.0 20.0
19.3 96.599.019.820.0µg/L1,1-Dichloroethane 70-130 2.5 20.0
Page 5 of 16Date:06/30/2022 08:19 AM
Page 18 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V20140QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V20136
LCS-V20136 LCSD-V20136Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
18.2 91.090.018.020.0µg/L1,2-Dichloroethane 70-130 1.1 20.0
19.3 96.598.519.720.0µg/L1,1-Dichloroethene 70-130 2.0 20.0
19.9 99.599.519.920.0µg/Lcis-1,2-Dichloroethene 70-130 0.0 20.0
19.2 96.097.519.520.0µg/Ltrans-1,2-Dichloroethene 70-130 1.5 20.0
19.4 97.097.019.420.0µg/L1,2-Dichloropropane 70-130 0.0 20.0
21.6 10810821.620.0µg/L1,3-Dichloropropane 70-130 0.0 20.0
19.2 96.099.519.920.0µg/L2,2-Dichloropropane 70-130 3.5 20.0
18.9 94.596.519.320.0µg/L1,1-Dichloropropene 70-130 2.0 20.0
22.5 11311723.420.0µg/Lcis-1,3-Dichloropropene 70-130 3.9 20.0
22.3 11211623.220.0µg/Ltrans-1,3-Dichloropropene 70-130 3.9 20.0
540 10899.8499500µg/LEthanol 60-140 7.8 20.0
20.6 10310621.120.0µg/LEthylbenzene 70-130 2.3 20.0
41.1 10310541.840.0µg/LEthyl Tertiary Butyl Ether (ETBE)70-130 1.6 20.0
22.8 11411122.120.0µg/LHexachlorobutadiene 70-130 3.1 20.0
20.2 10110220.320.0µg/L2-Hexanone 60-140 0.4 20.0
21.9 11011021.920.0µg/LIsopropylbenzene 70-130 0.0 20.0
21.8 10910921.720.0µg/L4-Isopropyl toluene 70-130 0.4 20.0
18.7 93.592.518.520.0µg/LMethyl Ethyl Ketone (MEK)60-140 1.0 20.0
20.2 10110220.320.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.4 20.0
19.1 95.593.518.720.0µg/L4-Methyl-2-Pentanone 60-140 2.1 20.0
19.7 98.510120.120.0µg/LMethylene Chloride 70-130 2.0 20.0
19.9 99.598.519.720.0µg/LNaphthalene 70-130 1.0 20.0
21.5 10811122.120.0µg/Ln-Propylbenzene 70-130 2.7 20.0
21.3 10710821.520.0µg/LStyrene 70-130 0.9 20.0
41.7 10410441.640.0µg/Ltert-Butyl Alcohol (TBA)40-140 0.2 20.0
44.1 11011445.640.0µg/Ltert-Butyl formate (TBF)40-140 3.3 20.0
Page 6 of 16Date:06/30/2022 08:19 AM
Page 19 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V20140QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V20136
LCS-V20136 LCSD-V20136Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
17.0 85.092.518.520.0µg/Ltert-Amyl Alcohol (TAA)40-140 8.4 20.0
40.9 10210541.840.0µg/Ltert-Amyl Methyl Ether (TAME)40-140 2.1 20.0
21.3 10710921.820.0µg/L1,1,1,2-Tetrachloroethane 70-130 2.3 20.0
24.1 12111723.320.0µg/L1,1,2,2-Tetrachloroethane 70-130 3.3 20.0
20.4 10210420.820.0µg/LTetrachloroethene 70-130 1.9 20.0
19.0 95.096.519.320.0µg/LToluene 70-130 1.5 20.0
21.9 11011122.220.0µg/L1,2,3-Trichlorobenzene 70-130 1.3 20.0
21.4 10710621.220.0µg/L1,2,4-Trichlorobenzene 70-130 0.9 20.0
20.8 10410721.420.0µg/L1,1,1-Trichloroethane 70-130 2.8 20.0
21.4 10710521.020.0µg/L1,1,2-Trichloroethane 70-130 1.8 20.0
19.2 96.097.519.520.0µg/LTrichloroethene 70-130 1.5 20.0
19.7 98.597.019.420.0µg/LTrichlorofluoromethane 60-140 1.5 20.0
21.2 10610821.620.0µg/L1,2,3-Trichloropropane 70-130 1.8 20.0
21.5 10810821.520.0µg/L1,2,4-Trimethylbenzene 70-130 0.0 20.0
21.4 10711122.120.0µg/L1,3,5-Trimethylbenzene 70-130 3.2 20.0
21.7 10910520.920.0µg/LVinyl Acetate 60-140 3.7 20.0
18.8 94.095.019.020.0µg/LVinyl Chloride 60-140 1.0 20.0
20.5 10310420.720.0µg/Lo-Xylene 70-130 0.9 20.0
42.5 10610742.940.0µg/Lm,p-Xylene 70-130 0.9 20.0
21.9 11090.018.020.0µg/L3,3-Dimethyl-1-butanol 70-130 19.5 20.0
1011024-Bromofluorobenzene (S)70-130
113115Dibromofluoromethane (S)70-130
1021041,2-Dichloroethane - d4 (S)70-130
106105Toluene-d8 (S)70-130
Page 7 of 16Date:06/30/2022 08:19 AM
Page 20 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V20090QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V19827
Associated Lab Samples: 91570
LRB-V19827 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/13/22 17:4610.07.12<7.12µg/LAcenaphthene
06/13/22 17:4620.06.94<6.94µg/LAcenaphthylene
06/13/22 17:4610.06.57<6.57µg/LAnthracene
06/13/22 17:4610.05.08<5.08µg/LBenzidine
06/13/22 17:4610.06.65<6.65µg/LBenzo(a)anthracene
06/13/22 17:4610.04.67<4.67µg/LBenzo(a)pyrene
06/13/22 17:4610.04.52<4.52µg/LBenzo(b)fluoranthene
06/13/22 17:4610.04.24<4.24µg/LBenzo(g,h,i)perylene
06/13/22 17:4610.04.86<4.86µg/LBenzo(k)fluoranthene
06/13/22 17:4650.011.5<11.5µg/LBenzoic Acid
06/13/22 17:4610.08.60<8.60µg/LBenzyl alcohol
06/13/22 17:4610.05.67<5.67µg/LBis(2-Chloroethoxy)methane
06/13/22 17:4610.07.30<7.30µg/LBis(2-Chloroethyl)ether
06/13/22 17:4610.06.59<6.59µg/LBis(2-Chloroisopropyl)ether
06/13/22 17:4610.08.80<8.80µg/LBis(2-ethylhexyl)phthalate
06/13/22 17:4620.06.26<6.26µg/L4-Bromophenyl phenyl ether
06/13/22 17:4610.04.53<4.53µg/LButyl benzyl phthalate
06/13/22 17:4610.05.23<5.23µg/L4-Chloro-3-methylphenol
06/13/22 17:4620.07.38<7.38µg/L2-Chloronaphthalene
06/13/22 17:4610.06.58<6.58µg/L2-Chlorophenol
06/13/22 17:4620.06.99<6.99µg/L4-Chlorophenyl phenyl ether
06/13/22 17:4610.05.38<5.38µg/LChrysene
06/13/22 17:4620.06.01<6.01µg/LDibenz(a,h)anthracene
06/13/22 17:4620.05.08<5.08µg/LDibenzofuran
06/13/22 17:4610.05.91<5.91µg/L1,2-Dichlorobenzene
06/13/22 17:4610.05.83<5.83µg/L1,3-Dichlorobenzene
06/13/22 17:4610.05.91<5.91µg/L1,4-Dichlorobenzene
Page 8 of 16Date:06/30/2022 08:19 AM
Page 21 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V20090QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V19827
Associated Lab Samples: 91570
LRB-V19827 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/13/22 17:4610.06.60<6.60µg/L3,3'-Dichlorobenzidine
06/13/22 17:4610.05.54<5.54µg/L2,4-Dichlorophenol
06/13/22 17:4620.09.35<9.35µg/LDiethyl phthalate
06/13/22 17:4610.07.82<7.82µg/LDimethyl phthalate
06/13/22 17:4620.010.9<10.9µg/L2,4-Dimethylphenol
06/13/22 17:4610.07.35<7.35µg/LDi-n-butyl phthalate
06/13/22 17:4630.09.92<9.92µg/L4,6-Dinitro-2-methylphenol
06/13/22 17:4630.010.6<10.6µg/L2,4-Dinitrophenol
06/13/22 17:4610.05.20<5.20µg/L2,4-Dinitrotoluene
06/13/22 17:4620.05.90<5.90µg/L2,6-Dinitrotoluene
06/13/22 17:4610.05.01<5.01µg/LDi-n-Octyl Phthalate
06/13/22 17:4610.06.03<6.03µg/LFluoranthene
06/13/22 17:4610.07.27<7.27µg/LFluorene
06/13/22 17:4620.05.75<5.75µg/LHexachlorobenzene
06/13/22 17:4620.05.88<5.88µg/LHexachlorobutadiene
06/13/22 17:4620.05.90<5.90µg/LHexachlorocyclopentadiene
06/13/22 17:4610.05.22<5.22µg/LHexachloroethane
06/13/22 17:4610.06.20<6.20µg/LIndeno(1,2,3-cd)pyrene
06/13/22 17:4610.06.71<6.71µg/LIsophorone
06/13/22 17:4610.01.10<1.10µg/L1-Methylnaphthalene
06/13/22 17:4610.06.92<6.92µg/L2-Methylnaphthalene
06/13/22 17:4610.07.88<7.88µg/LNaphthalene
06/13/22 17:4610.07.88<7.88µg/LNitrobenzene
06/13/22 17:4610.05.49<5.49µg/L2-Nitrophenol
06/13/22 17:4610.02.81<2.81µg/L4-Nitrophenol
06/13/22 17:4620.010.9<10.9µg/LN-Nitrosodiphenylamine
06/13/22 17:4620.08.10<8.10µg/LN-Nitroso-di-n-propylamine
Page 9 of 16Date:06/30/2022 08:19 AM
Page 22 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V20090QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V19827
Associated Lab Samples: 91570
LRB-V19827 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/13/22 17:4650.09.73<9.73µg/LPentachlorophenol
06/13/22 17:4610.06.34<6.34µg/LPhenanthrene
06/13/22 17:4610.02.86<2.86µg/LPhenol
06/13/22 17:4610.05.42<5.42µg/LPyrene
06/13/22 17:4610.06.25<6.25µg/L1,2,4-Trichlorobenzene
06/13/22 17:4620.06.29<6.29µg/L2,4,6-Trichlorophenol
06/13/22 17:462-Fluorobiphenyl (S)58.4 49-118
06/13/22 17:462-Fluorophenol (S)32.2 22-84
06/13/22 17:46Nitrobenzene-d5 (S)52.2 43-123
06/13/22 17:464-Terphenyl-d14 (S)82.6 49-151
06/13/22 17:462,4,6-Tribromophenol (S)67.3 31-144
06/13/22 17:46Phenol-d5 (S)23.1 10-63
LCS-V19827 LCSD-V19827Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
32.2 64.458.629.350.0µg/LAcenaphthene 47-145 9.4 20.0
30.5 61.056.828.450.0µg/LAcenaphthylene 33-145 7.1 20.0
35.9 71.865.232.650.0µg/LAnthracene 27-133 9.6 20.0
27.0 54.025.212.650.0µg/LBenzidine 15-150 72.7*20.0
35.7 71.464.832.450.0µg/LBenzo(a)anthracene 33-143 9.6 20.0
49.3 98.690.245.150.0µg/LBenzo(a)pyrene 17-163 8.8 20.0
45.6 91.282.441.250.0µg/LBenzo(b)fluoranthene 24-159 10.1 20.0
42.6 85.276.638.350.0µg/LBenzo(g,h,i)perylene 10-219 10.6 20.0
43.4 86.879.639.850.0µg/LBenzo(k)fluoranthene 11-162 8.6 20.0
<11.5 0.0*23.011.550.0µg/LBenzoic Acid 10-125 0.0 20.0
Page 10 of 16* QC Fail Date:06/30/2022 08:19 AM
Page 23 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V20090QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V19827
LCS-V19827 LCSD-V19827Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
26.0 52.052.426.250.0µg/LBenzyl alcohol 16-107 0.7 20.0
27.1 54.251.625.850.0µg/LBis(2-Chloroethoxy)methane 33-184 4.9 20.0
24.5 49.046.623.350.0µg/LBis(2-Chloroethyl)ether 12-158 5.0 20.0
25.4 50.849.624.850.0µg/LBis(2-Chloroisopropyl)ether 36-166 2.3 20.0
36.1 72.267.033.550.0µg/LBis(2-ethylhexyl)phthalate 10-158 7.4 20.0
35.6 71.262.631.350.0µg/L4-Bromophenyl phenyl ether 53-127 12.8 20.0
36.8 73.667.233.650.0µg/LButyl benzyl phthalate 10-152 9.0 20.0
27.9 55.854.427.250.0µg/L4-Chloro-3-methylphenol 22-147 2.5 20.0
29.0 58.0*53.2*26.650.0µg/L2-Chloronaphthalene 60-118 8.6 20.0
23.1 46.246.023.050.0µg/L2-Chlorophenol 23-134 0.4 20.0
32.3 64.657.028.550.0µg/L4-Chlorophenyl phenyl ether 25-158 12.5 20.0
36.4 72.867.633.850.0µg/LChrysene 17-168 7.4 20.0
34.5 69.062.631.350.0µg/LDibenz(a,h)anthracene 10-227 9.7 20.0
31.2 62.457.628.850.0µg/LDibenzofuran 39-114 8.0 20.0
18.3 36.634.817.450.0µg/L1,2-Dichlorobenzene 32-129 5.0 20.0
18.4 36.833.216.650.0µg/L1,3-Dichlorobenzene 20-124 10.2 20.0
18.0 36.033.216.650.0µg/L1,4-Dichlorobenzene 20-124 8.0 20.0
30.8 61.654.427.250.0µg/L3,3'-Dichlorobenzidine 10-262 12.4 20.0
26.6 53.249.224.650.0µg/L2,4-Dichlorophenol 39-135 7.8 20.0
36.5 73.065.632.850.0µg/LDiethyl phthalate 10-114 10.6 20.0
35.2 70.464.232.150.0µg/LDimethyl phthalate 10-112 9.2 20.0
28.7 57.454.627.350.0µg/L2,4-Dimethylphenol 32-119 5.0 20.0
40.7 81.474.037.050.0µg/LDi-n-butyl phthalate 10-118 9.5 20.0
33.6 67.261.430.750.0µg/L4,6-Dinitro-2-methylphenol 10-181 9.0 20.0
35.0 70.062.031.050.0µg/L2,4-Dinitrophenol 10-191 12.1 20.0
37.2 74.466.433.250.0µg/L2,4-Dinitrotoluene 39-139 11.3 20.0
Page 11 of 16* QC Fail Date:06/30/2022 08:19 AM
Page 24 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V20090QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V19827
LCS-V19827 LCSD-V19827Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
34.6 69.263.231.650.0µg/L2,6-Dinitrotoluene 50-158 9.0 20.0
44.7 89.480.240.150.0µg/LDi-n-Octyl Phthalate 10-146 10.8 20.0
37.6 75.267.433.750.0µg/LFluoranthene 26-137 10.9 20.0
33.5 67.060.030.050.0µg/LFluorene 59-121 11.0 20.0
34.5 69.063.631.850.0µg/LHexachlorobenzene 10-152 8.1 20.0
18.8 37.634.817.450.0µg/LHexachlorobutadiene 24-116 7.7 20.0
20.5 41.035.617.850.0µg/LHexachlorocyclopentadiene 32-117 14.0 20.0
16.6 33.2*29.4*14.750.0µg/LHexachloroethane 40-113 12.1 20.0
42.0 84.074.037.050.0µg/LIndeno(1,2,3-cd)pyrene 10-171 12.6 20.0
25.5 51.049.224.650.0µg/LIsophorone 21-196 3.5 20.0
23.8 47.644.822.450.0µg/L1-Methylnaphthalene 40-135 6.0 20.0
23.5 47.043.621.850.0µg/L2-Methylnaphthalene 18-121 7.5 20.0
22.2 44.442.621.350.0µg/LNaphthalene 21-133 4.1 20.0
24.1 48.245.822.950.0µg/LNitrobenzene 35-180 5.1 20.0
24.0 48.044.222.150.0µg/L2-Nitrophenol 29-182 8.2 20.0
15.2 30.427.013.550.0µg/L4-Nitrophenol 10-132 11.8 20.0
42.3 84.676.238.150.0µg/LN-Nitrosodiphenylamine 69-152 10.4 20.0
26.3 52.653.426.750.0µg/LN-Nitroso-di-n-propylamine 10-230 1.5 20.0
39.7 79.472.236.150.0µg/LPentachlorophenol 14-176 9.4 20.0
36.6 73.265.432.750.0µg/LPhenanthrene 54-120 11.2 20.0
11.2 22.421.810.950.0µg/LPhenol 10-112 2.7 20.0
36.7 73.467.633.850.0µg/LPyrene 52-115 8.2 20.0
19.7 39.4*37.2*18.650.0µg/L1,2,4-Trichlorobenzene 44-142 5.7 20.0
31.6 63.256.028.050.0µg/L2,4,6-Trichlorophenol 37-144 12.0 20.0
62.258.82-Fluorobiphenyl (S)49-118
30.330.82-Fluorophenol (S)22-84
Page 12 of 16* QC Fail Date:06/30/2022 08:19 AM
Page 25 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
625.1 - Base/Neutrals and Acids by GC/MS
625.1
V20090QC Analytical Batch(es):
Analysis Method:
Analysis Description:
625.1 (Prep)
QC Prep:V19827
LCS-V19827 LCSD-V19827Laboratory Control Sample & LCSD
LCSD
ResultParameter
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
46.848.2Nitrobenzene-d5 (S)43-123
79.875.64-Terphenyl-d14 (S)49-151
77.570.12,4,6-Tribromophenol (S)31-144
22.022.6Phenol-d5 (S)10-63
Page 13 of 16Date:06/30/2022 08:19 AM
Page 26 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
EDB and DBCP by Microextraction GC/ECD
EPA-504.1
V20059QC Analytical Batch(es):
Analysis Method:
Analysis Description:
EPA-504.1(PREP)
QC Prep:V20049
Associated Lab Samples: 91570
LRB-V20049 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
06/17/22 11:040.02000.00330<0.00330µg/L1,2-Dibromoethane
LCS-V20049 LCSD-V20049Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
0.276 1101120.2790.250µg/L1,2-Dibromoethane 70-130 1.0 20.0
V 92086-DUP-V20049Duplicate
Max RPD
Parameter
AnalyzedRPDDUP
Result
Result
Units
20.0 06/17/22 13:390.0<0.0231< 0.0231µg/L1,2-Dibromoethane
V 91570-MS-V20049Matrix Spike
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
0.289 1100.262< 0.00347µg/L1,2-Dibromoethane 70-130
Page 14 of 16Date:06/30/2022 08:19 AM
Page 27 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Massachusetts EPH
MADEP-EPH
V20086QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAEPH (Prep)
QC Prep:V19876
Associated Lab Samples: 91570
LRB-V19876 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/17/22 09:2335028.242.1µg/LAliphatic C9-C18
06/17/22 09:23500124<124µg/LAliphatic C19-C36
06/17/22 09:2325061.2<61.2µg/LAromatic C11-C22
06/17/22 09:232-Fluorobiphenyl (S)87.7 40-140
06/17/22 09:232-Bromonaphthalene (S)95.0 40-140
06/17/22 09:23Chlorooctadecane (S)59.5 40-140
06/17/22 09:23OTP Surrogate (S)63.0 40-140
LCS-V19876 LCSD-V19876Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
340 56.658.5351600µg/LAliphatic C9-C18 40-140 3.1 50.0
598 74.775.2602800µg/LAliphatic C19-C36 40-140 0.6 50.0
1300 76.483.514201700µg/LAromatic C11-C22 40-140 8.8 50.0
81.284.72-Fluorobiphenyl (S)40-140
88.592.72-Bromonaphthalene (S)40-140
58.562.5Chlorooctadecane (S)40-140
61.066.5OTP Surrogate (S)40-140
Page 15 of 16Date:06/30/2022 08:19 AM
Page 28 of 32
Quality Control Data
22-159-0000Report No:
Project Description:
Client ID:CES Group
Creston Supertte
QC Prep Batch Method:
Massachusetts VPH
MADEP-VPH
V19794QC Analytical Batch(es):
Analysis Method:
Analysis Description:
MAVPH (Prep)
QC Prep:V19793
Associated Lab Samples: 91570
LRB-V19793 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
06/10/22 12:2750.011.5<11.5µg/LAliphatic C5-C8
06/10/22 12:2750.025.8<25.8µg/LAliphatic C9-C12
06/10/22 12:2750.04.02<4.02µg/LAromatic C9-C10
06/10/22 12:272,5-Dibromotoluene (FID) (S)106 70-130
06/10/22 12:272,5-Dibromotoluene (PID) (S)120 70-130
LCS-V19793 LCSD-V19793Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
285 95.096.6290300µg/LAliphatic C5-C8 70-130 1.7 50.0
319 106106318300µg/LAliphatic C9-C12 70-130 0.3 50.0
116 116115115100µg/LAromatic C9-C10 70-130 0.8 50.0
97.697.52,5-Dibromotoluene (FID) (S)70-130
1111102,5-Dibromotoluene (PID) (S)70-130
Page 16 of 16Date:06/30/2022 08:19 AM
Page 29 of 32
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:22-159-0000
CES Group
00012
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT-15 15C
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Angelo Norvell Date & Time:06/08/2022 10:05:00
Special precautions or instructions included?
Comments:
Page 30 of 32
Page 31 of 32
Sample ID Report Lab No
LRB 22-159-0000 LRB-V19827
Paramater Result Units
Dilution
Factor Method Analysis Date/Time Analyst Batch ID
NO TICS REPORTED 0 ug/L 1 625.1 6/13/2022 17:46 JMV V20090
Sample ID Report Lab No
MW-1 22-159-0000 V 91570
Paramater Result Units
Dilution
Factor Method Analysis Date/Time Analyst Batch ID
NO TICS REPORTED 0 ug/L 1 625.1 6/13/2022 23:08 JMV V20090
Page 32 of 32

APPENDIX E

SOIL BORING LOG AND MONITORING
WELL CONSTRUCTION /
ABANDONMENT FORMS

CES Project No.: 7913.0522E Boring Number: MW-1 Page: 1 of 1
Site Name: Creston Superette Boring Location: Former fuel lines and dispensers (Ie, Source
Area)

Address: 12295 NC Highway 88
West, Creston, NC
Date: June 6, 2022 Sample Number Lab Sample Sample Recovery (5 Foot Intervals) Depth (feet) Detailed Soil and Rock Description PID (PPMV) Remarks / Notes

1__ 50%
5__ (4-5'): Grey dense clay 6.0 No Staining/Slight Odor

100%
(7-8’): Light brown/reddish clay 1.4 No Staining/Slight Odor
10__ (8-10'): Grey dense clay 0.1 No Staining/Odor (10-13’): No recovery due to rock/stone 40% MW-1 * 15__ (14-15’): Greyish/brown dense clay, moist 0.0 No Staining/Odor 18__ End of Boring at approximately 18 feet below grade

Note: Stratification lines are approximate; in-situ transition between soil types may be gradual.
Ground Water Data: Drilling Information: Drilling Co.: Carolina Soil Investigations, LLC
Water Indication (during boring): 17’ Engineer/Geologist: Greg Hans, PMP
Ground Water Depth (after boring): 17.20’ Drilling Method: Geoprobe Direct Push via Trac Mounted 7822DT Drill Rig
PID Reading (instrument units): PPMV Sampling Method: 5-foot sample liners
Borehole Depth: 18’
Abandonment: June 6, 2022
CES Group Engineers, LLP

3525 Whitehall Park Drive, Suite 150, Charlotte, NC 28273

WELL CONSTRUCTION RECORD (GW-1)

4. Date Well(s) Completed: Well ID#
5a. Well Location:
Facility/Owner Name Facility ID# (if applicable)
Physical Address, City, and Zip
County Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees: (if well field, one lat/long is sufficient)
N W
6.Is(are) the well(s): Permanent or Temporary
7. Is this a repair to an existing well: Yes or No
If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form.
8.For Geoprobe/DPT or Closed-Loop Geothermal Wells having the same construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wellsdrilled:
9. Total well depth below land surface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′)
10.Static water level below top of casing: (ft.) If water level is above casing, use “+”
11. Borehole diameter: (in.)
12.Well construction method: (i.e. auger, rotary, cable, direct push, etc.)
22.Certification:
Signature of Certified Well Contractor Date
By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner.
23.Site diagram or additional well details: You may use the back of this page to provide additional well site details or wellconstruction details. You may also attach additional pages if necessary.
SUBMITTAL INSTRUCTIONS
24a. For All Wells: Submit this form within 30 days of completion of well construction to the following:
Division of Water Resources, Information Processing Unit,
1617 Mail Service Center, Raleigh, NC 27699-1617
24b. For Injection Wells: In addition to sending the form to the address in 24a above, also submit one copy of this form within 30 days of completion of well construction to the following:
Division of Water Resources, Underground Injection Control Program,
1636 Mail Service Center, Raleigh, NC 27699-1636
24c. For Water Supply & Injection Wells: In addition to sending the form to the address(es) above, also submit one copy of this form within 30 days of completion of well construction to the county health department of the county where constructed.
Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 6-6-2018
Print Form
For Internal Use Only:
FOR WATER SUPPLY WELLS ONLY:
13a. Yield (gpm) Method of test:
13b. Disinfection type: Amount:
NC Well Contractor Certification Number
Carolina Soil Investigations, LLC
Company Name
2.Well Construction Permit #: List all applicable well construction permits (i.e. UIC, County, State, Variance, etc.)
3.Well Use (check well use):
14. WATER ZONES
FROM TO DESCRIPTION
ft. ft.
ft. ft.
15. OUTER CASING (for multi-cased wells) OR LINER (if applicable)
FROM TO DIAMETER THICKNESS MATERIAL
ft. ft. in.
16. INNER CASING OR TUBING (geothermal closed-loop)
FROM TO DIAMETER THICKNESS MATERIAL
ft. ft. in.
ft. ft. in.
Water Supply Well:
Municipal/Public
Residential Water Supply (single)
Residential Water Supply (shared)
Wells > 100,000 GPD
Agricultural
Geothermal (Heating/Cooling Supply)
Industrial/Commercial Irrigation
17. SCREEN
FROM TO DIAMETER SLOT SIZE THICKNESS MATERIAL
ft. ft. in.
ft. ft. in.
18. GROUT
FROM TO MATERIAL EMPLACEMENT METHOD & AMOUNT
Non-Water Supply Well:
Monitoring Recovery
ft. ft.
ft. ft.
Injection Well: Aquifer Recharge Groundwater Remediation
Aquifer Storage and Recovery Salinity Barrier
Aquifer Test Stormwater Drainage
Experimental Technology Subsidence Control
Geothermal (Closed Loop) Tracer
Geothermal (Heating/Cooling Return) Other (explain under #21 Remarks)
ft. ft.
19. SAND/GRAVEL PACK (if applicable)
FROM TO MATERIAL EMPLACEMENT METHOD
ft. ft.
ft. ft.
20. DRILLING LOG (attach additional sheets if necessary)
FROM TO DESCRIPTION (color, hardness, soil/rock type, grain size, etc.)
ft. ft.
ft. ft.
ft. ft.
ft. ft.
ft. ft.
ft. ft.
ft. ft.
21. REMARKS
1.Well Contractor Information:
___________________________________________________________
Well Contractor Name
WELL ABANDONMENT RECORD
Form GW-30 North Carolina Department of Environmental Quality - Division of Water Resources Revised 2-22-2016
1.Well Contractor Information:
Well Contractor Name (or well owner personally abandoning well on his/her property)
NC Well Contractor Certification Number
Company Name
2.Well Construction Permit #:
List all applicable well construction permits (i.e. UIC, County, State, Variance, etc.) if known
3.Well use (check well use):
Water Supply Well:
□Agricultural □Municipal/Public
□Geothermal (Heating/Cooling Supply)□Residential Water Supply (single)
□Industrial/Commercial □Residential Water Supply (shared)
□Irrigation
Non-Water Supply Well:
□Monitoring □Recovery
Injection Well:
□Aquifer Recharge □Groundwater Remediation
□Aquifer Storage and Recovery □Salinity Barrier
□Aquifer Test □Stormwater Drainage
□Experimental Technology □Subsidence Control
□Geothermal (Closed Loop)□Tracer
□Geothermal (Heating/Cooling Return) □Other (explain under 7g)
4. Date well(s) abandoned:
5a. Well location:
Facility/Owner Name Facility ID# (if applicable)
Physical Address, City, and Zip
County Parcel Identification No. (PIN)
5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees:
(if well field, one lat/long is sufficient)
N W
CONSTRUCTION DETAILS OF WELL(S) BEING ABANDONED
Attach well construction record(s) if available. For multiple injection or non-water supply wells
ONLY with the same construction/abandonment, you can submit one form.
6a. Well ID#:
6b. Total well depth: (ft.)
6c. Borehole diameter: (in.)
6d. Water level below ground surface: (ft.)
6e. Outer casing length (if known): (ft.)
6f. Inner casing/tubing length (if known): (ft.)
6g. Screen length (if known): (ft.)
WELL ABANDONMENT DETAILS
7a. For Geoprobe/DPT or Closed-Loop Geothermal Wells having the same
well construction/depth, only 1 GW-30 is needed. Indicate TOTAL NUMBER of
wells abandoned:
7b. Approximate volume of water remaining in well(s): (gal.)
FOR WATER SUPPLY WELLS ONLY:
7c. Type of disinfectant used:
7d. Amount of disinfectant used:
7e. Sealing materials used (check all that apply):
□Neat Cement Grout □Bentonite Chips or Pellets
□Sand Cement Grout □Dry Clay
□Concrete Grout □Drill Cuttings
□Specialty Grout □Gravel
□Bentonite Slurry □Other (explain under 7g)
7f. For each material selected above, provide amount of materials used:
7g. Provide a brief description of the abandonment procedure:
8.Certification:
Signature of Certified Well Contractor or Well Owner Date
By signing this form, I hereby certify that the well(s) was (were) abandoned in
accordance with 15A NCAC 02C .0100 or 2C .0200 Well Construction Standards
and that a copy of this record has been provided to the well owner.
9.Site diagram or additional well details:
You may use the back of this page to provide additional well site details or well
abandonment details. You may also attach additional pages if necessary.
SUBMITTAL INSTRUCTIONS
10a. For All Wells: Submit this form within 30 days of completion of well
abandonment to the following:
Division of Water Resources, Information Processing Unit,
1617 Mail Service Center, Raleigh, NC 27699-1617
10b. For Injection Wells: In addition to sending the form to the address in 10a
above, also submit one copy of this form within 30 days of completion of well
abandonment to the following:
Division of Water Resources, Underground Injection Control Program,
1636 Mail Service Center, Raleigh, NC 27699-1636
10c. For Water Supply & Injection Wells: In addition to sending the form to the
address(es) above, also submit one copy of this form within 30 days of completion
of well abandonment to the county health department of the county where
abandoned.
For Internal Use ONLY: