RA-29642_48768_CA_SCH_20221116

3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]
November 30, 2022

Mr. Mark Powers
NCDEQ-UST Section
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628

Re: Site Check Report
NC DOT Raleigh Equipment Depot
5105 Beryl Road
Raleigh, Wake County
North Carolina
Facility ID Number: 00-0-000024718
Incident Number: N/A
GRI Project Number: 4913

Dear Mr. Powers,

Please find enclosed the referenced report for the abovementioned site.
If you have any questions, please contact William Regenthal at 704-845-4010.

Sincerely,
Geological Resources, Inc.

Leslie Maxtone-Graham
Administrative Assistant

Enclosure

Cc: Mr. Doug Leonard; NC DOT Equipment Unit, file

3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]
Engineering Certification: C-2727 • Geology Certification: C-127
Site Check Report
NC DOT Raleigh Equipment Depot
5105 Beryl Road
Raleigh, Wake County
North Carolina
Facility ID Number: 00-0-000024718
Incident Number: N/A
GRI Project Number: 4913

Prepared for:

Mr. Doug Leonard
North Carolina Department of Transportation – Equipment Unit
5105 Beryl Road
Raleigh, North Carolina 27606

November 16, 2022

William Regenthal, P.G.
Project Manager
AJ Discepolo, G.I.T
Staff Scientist

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913
i
EXECUTIVE SUMMARY
The NC DOT Raleigh Equipment Depot site is located at 5105 Beryl Road in Raleigh, Wake County, North
Carolina. The property operates as a maintenance and fueling depot for the North Carolina Department
of Transportation. The site is covered by asphalt and concrete. There are two 10,000-gallon biodiesel,
one 10,000-gallon gasoline, one 500-gallon heating oil, one 25,000-gallon diesel and one 25,000-gallon
gasoline USTs currently in use at the site with two associated gasoline and three diesel dispenser islands.
Two 15,000-gallon #6 fuel oil USTs and product piping were removed from the site on October 30 and 31,
2018.

During site inspection activities, the spill bucket associated with the 10,000-gallon diesel #1 UST failed
hydrostatic testing and a crack was observed in the flange of the spill bucket associated with the 10,000-
gallon gasoline UST. Following the non-passing results, the spill buckets were replaced. Based on this
information, a Site Check was required by NCDEQ.

On November 8, 2022, a Site Check was conducted in the vicinity of the 10,000-gallon diesel #1 UST and
10,000-gallon gasoline UST spill buckets. Two soil samples (DSL-2-.5’ and RUL-2-.5’) were collected to
approximately 0.5 feet beneath the spill buckets, during replacement activities. Soil samples were
collected and submitted for UVF analyses. A detectable concentration of TPH-DRO was reported, however
the concentration was less than the RAL.

Based on this information, a soil quality violation does not exist, and no further assessment is warranted
for this incident.

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913
iii

ACRONYMS
ACM: Asbestos Containing Materials
AFVR: Aggressive Fluid-Vapor Recovery
ARR: Acknowledgement of Report Receipt
AS: Air Sparging
AST: Aboveground Storage Tank
ASTM: American Society for Testing and
Materials
BGS: Below Ground Surface
CAP: Corrective Action Plan
CFR: Code of Federal Regulations
CSA: Comprehensive Site Assessment
DPE: Dual Phase Extraction
DRO: Total Petroleum Hydrocarbons Diesel
Range Organics
DWM: Division of Waste Management
DWR: Department of Water Resources
EPA: Environmental Protection Agency
EPH: Extractible Petroleum Hydrocarbons
ESA: Environmental Site Assessment
GCL: Gross Contamination Level
GRI: Geological Resources, Inc.
GRO: Total Petroleum Hydrocarbons
Gasoline Range Organics
LSA: Limited Site Assessment
MAC: Maximum Allowable Concentration as
specified in T15A NCAC 2L.0202
MADEP: Massachusetts Department of
Environmental Protection
MCC: Maximum Contaminant Concentrations
MMPE: Mobile Multi-Phase Extraction
NAPL: Non-Aqueous Phase Liquid, “Free
Product”
NCDEQ: North Carolina Department of
Environmental Quality
NCDOT: North Carolina Department of
Transportation
NFA: Notice of No Further Action
NORR: Notice of Regulatory Requirements
NOV: Notice of Violation
NPDES: National Pollutant Discharge
Elimination System
NRP: Notice of Residual Petroleum
O&M: Operation and Maintenance
PAHs: Polynuclear Aromatic Hydrocarbons
PCA: Pre-Construction Assessment
RAL: Regulatory Action Level
SCLs: Soil Cleanup Level
SPCC: Spill Prevention Control and
Countermeasures
SVE: Soil Vapor Extraction
SVOCs: Semi-Volatile Organic Compounds
SWPPP: Stormwater Pollution Prevention Plan
TCLP: Toxicity Characteristic Leaching
Procedure (EPA Method SW-846 1311)
TOC: Top of Casing
TPH: Total Petroleum Hydrocarbons
USGS: United States Geological Survey
UST: Underground Storage Tank
UVF: Ultraviolet Fluorescence
VOCs: Volatile Organic Compounds
VPH: Volatile
Petroleum Hydrocarbons

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913

TABLE OF CONTENTS

EXECUTIVE SUMMARY ....................................................................................................................... i
SITE INFORMATION ............................................................................................................................ ii
ACRONYMS ....................................................................................................................................... iii
A. SITE HISTORY AND CHARACTERIZATION .................................................................................1
B. SITE CHECK PROCEDURES .......................................................................................................2
C. SITE INVESTIGATION ..............................................................................................................2
D. SUMMARY AND CONCLUSIONS ..............................................................................................3
E. LIMITATIONS .........................................................................................................................3

FIGURES
Figure 1: Site Location Map
Figure 2: Site Map
Figure 3: Soil Quality Map

TABLES
Table 1: UST Owner/Operator Information
Table 2: UST System Information
Table 3: Summary of Soil Sample Analytical Results

APPENDICES
Appendix A: State Correspondence
Appendix B: UVF Report – Soil Samples

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913
1
A. SITE HISTORY AND CHARACTERIZATION
1. UST Owner and Operator Information:
In accordance with the Site Check Report guidelines, the UST owner and operator information has been
summarized in the attached Table 1.

2. UST System Information:
In accordance with the Site Check Report guidelines, the UST system information has been summarized
in the attached Table 2. There are two 10,000-gallon biodiesel, one 10,000-gallon gasoline, one 500-
gallon heating oil, one 25,000-gallon diesel and one 25,000-gallon gasoline USTs currently in use at the
site with two associated gasoline and three diesel dispenser islands. There are approximately 200 feet
of product piping from the tanks to the dispenser islands. Please note, two 15,000-gallon #6 fuel oil
USTs and product piping were removed from the site on October 30 and 31, 2018. A copy of the NCDEQ
Registered Tank Report is shown below:

3. Non-UST Information:
There are currently no ASTs and no known ASTs formerly at the site.

4. Comprehensive Description of the Release:
During a site inspection, the spill bucket associated with the 10,000-gallon diesel #1 UST failed hydrostatic
testing and the spill bucket casing associated with the 10,000-gallon gasoline UST was damaged. Repairs
were in progress at the time of site check activities. A compliance inspection was completed by NCDEQ
on November 10, 2022 and an NOV was issued by NCDEQ on November 14, 2022. A copy of the NOV is
included in Appendix A.

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913
2
On November 8, 2022, two soil samples (DSL-2-.5’ and RUL-2-.5’) were collected approximately 0.5-feet
beneath the spill buckets of the 10,000-gallon diesel #1 and 10,000-gallon gasoline USTs as repairs were
being conducted. The collected soil samples were and submitted for UVF analyses of TPH-GRO and/or
TPH-DRO. Upon receipt of the laboratory report, it was determined that no reportable release had
occurred.

5. Description of the Site Characteristics:
The NC DOT Raleigh Equipment Depot site is located at 5105 Beryl Road in Raleigh, Wake County, North
Carolina (Figure 1). The property operates as a maintenance and fueling depot. The site is covered by
asphalt and concrete. There are two 10,000-gallon biodiesel, one 10,000-gallon gasoline, one 500-gallon
heating oil, one 25,000-gallon diesel and one 25,000-gallon gasoline USTs with two associated gasoline
and three associated diesel dispenser islands currently in use at the site. Two 15,000-gallon #6 fuel oil
USTs were removed from the site in October 2018. The UST are located in multiple UST basins spread out
across the site. The surrounding properties are a mixture of industrial and residential. A Site Map has
been included as Figure 2.

B. SITE CHECK PROCEDURES
1. Results of Tank and Line Tightness Testing:
Following the failed hydrostatic compliance testing and the observance of the failed flange, the spill
buckets were replaced. Passing tightness testing results for the new spill buckets are included in Appendix
A.

2. Summary of Site Check Procedure:
GRI performed a Site Check on November 8, 2022, that included the collection of one soil sample under
the spill bucket associated with the 10,000-gallon diesel #1 UST and one soil sample from under the spill
bucket associated with the 10,000-gallon gasoline UST. Soil samples were collected from beneath each
removed spill bucket during replacement activities.

3. Soil Excavation Activities:
No soil excavation activities were conducted.

C. SITE INVESTIGATION
1. Field Screening:
The soil samples (DSL-2-.5’ and RUL-2-.5’) collected on November 8, 2022, were not screened with a photo
ionization detector for volatile organic compounds.

2. Soil Sampling Information:
A detectible concentration of TPH-DRO was reported in the soil sample collected from DSL-2-.5’, however
this concertation was less than the RAL. No free product was noted at the site. A soil quality map is
presented as Figure 3. A summary of soil sample analytical results is presented in Table 3. The laboratory

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913
3
report is provided as Appendix B. A summary of the soil sampling data from the November 2022 Site
Check activities is show below: Sample ID Sample Date Gasoline-Range TPH Diesel-Range TPH RAL (mg/kg) 50 100
Soil to Water MCC (mg/kg) NE NE
Residential SCLs (mg/kg) NE NE
DSL-2-.5’ 11/8/2022 <20 8.4
RUL-2-.5’ 11/8/2022 <20 NR

3. Ground Water and Surface Water Sampling Information:
Groundwater was not encountered; therefore, a ground water sample was not collected during the
November 2022 Site Check activities.

4. Quality-Control Measures:
Clean, disposable nitrile gloves were used for the collection of the soil samples. The samples were
collected in new zip lock bags, stored in an iced cooler, and transported to the mobile lab for UVF
analysis was conducted.

D. SUMMARY AND CONCLUSIONS
 The site is industrial and surrounding properties are a mixture of industrial and residential.
 During site inspection activities, non-passing spill buckets associated with the 10,000-gallon diesel
#1 and 10,000-gallon gasoline USTs were observed.
 A Site Check was conducted on November 8, 2022, to determine if a petroleum release had
occurred.
 A detectible concentration of TPH-DRO less than the RAL was reported in the soil sample collected
during the November 2022 Site Check activities.
 Based on this information, a soil quality violation does not exist and no further assessment is
warranted for this incident.
E. LIMITATIONS
This report has been prepared for the exclusive use of North Carolina Department of Transportation –
Equipment Unit for the specific application to the referenced site in Wake County, North Carolina. The
assessment was conducted based on the scope of work and level of effort specified by NCDEQ and with
resources adequate only for that scope of work. Our findings have been developed in accordance with
generally accepted standards of geology and hydrogeology practices in the State of North Carolina,
available information, and our professional judgment. No other warranty is expressed or implied.

___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Site Check Report
Prepared on: November 16, 2022 NC DOT Raleigh Equipment Depot
Project Manager: William Regenthal, P.G. GRI Project No. 4913
4
The data that are presented in this report are indicative of conditions that existed at the precise locations
sampled and at the time the samples were collected. In addition, the data obtained from samples would
be interpreted as being meaningful with respect to parameters indicated in the laboratory report. No
additional information can logically be inferred from these data.

FIGURES
SITE LOCATION
Figure 1
Site Location Map
NCDOT Equipment Depot; Raleigh
5105 Beryl Drive Raleigh, Wake
County, NC
Incident No. N/A
GRI Project No. 49132000 FT
Date: 05/18/2020 Location: 35.790885°N -78.708618°W
D
a
d

TABLES
UST ID Number All USTs Facility ID Number
Owner or Operator?
Owner and Operator
919-733-2220
TABLE 1
UST OWNER/OPERATOR INFORMATION
NC DOT RALEIGH EQUIPMENT DEPOT (INCIDENT NO. N/A)
Name of Owner or Operation
NC DOT- Equipment Unit
Dates of Ownership / Operation
See Table 2
Address
4809 Beryl Road, Raleigh, NC 27606
00-0-0000024718
Telephone Number
Page 1 of 1
Date: 05/12/2020 Facility ID #: 00-0-0000024718
Was Release
Associated
with UST
System?
(Yes / No)
1501-110
Tank #1 Biodiesel Other
Petroleum 10,000 01/01/99 Steel/FRP Unknown DW Flex Active Unknown
1501-102
Tank #4 Gasoline Diesel 10,000 08/01/93 Steel/FRP Unknown FRP Active Unknown
1501-101
Tank #2 Biodiesel unknown 10,000 08/01/93 Steel/FRP Unknown FRP Active Unknown
12 Heating
Oil/Fuel unknown 500 08/01/81 Unknown Unknown Unknown Active Unknown
101-381
Tank #3 Diesel unknown 25,000 05/01/06 DW FRP Unknown DW Flex Active Yes
101-380
Tank #5 Gasoline unknown 25,000 05/01/06 DW FRP Unknown DW Flex Active Unknown
--- #6 Fuel Oil unknown 15,000 Unknown Steel 10'6" x 23' 3" Steel
Removed
(10/30/18)No
--- #6 Fuel Oil unknown 15,000 Unknown Steel 10'6" x 23' 3" Steel Removed
(10/31/18)No
TABLE 2
UST SYSTEM INFORMATION
NC DOT RALEIGH EQUIPMENT DEPOT (INCIDENT NO. N/A)
UST
ID
No.
Current
or Most
Recent
Contents
Previous
Contents
Capacity
(gallons)
Date
Installed
Construction
Details
Tank
Dimensions
Description of
Associated
Product Piping
and
Pumps
Status
of
UST
Page 1 of 1
Date: 11/14/2022 Facility ID: 00-0-0000024718
Sample ID
Date
Collected
(mm/dd/yy)
Sample
Depth
(ft-BGS)
50 100
DSL-2-.5’11/8/2022 0.5 <20 8.4
RUL-2-.5’ 11/8/2022 0.5 <20 NR
RAL (mg/kg)
TABLE 3
SUMMARY OF SOIL SAMPLE ANALYTICAL RESULTS - UVF DATA
NC DOT RALEIGH EQUIPMENT DEPOT (INCIDENT NO. N/A)
Analytical Method UVF
Contaminant of Concern Gasoline-Range TPHDiesel-Range TPH

APPENDICES

APPENDIX A
State Correspondence

NORTH CAROLINA Environmental Quality

North Carolina Department of Environmental Quality | Division of Waste Management
217 West Jones Street | 1646 Mail Service Center | Raleigh, North Carolina 27699-1646
919.707.8171
ROY COOPER Governor
ELIZABETH S. BISER
Secretary
MICHAEL SCOTT
Director
November 14, 2022 CERTIFIED MAIL 9414811899562326617398 RETURN RECEIPT REQUESTED Processing Agent Keisha Staggers
Transportation Building 1 S. Willimington Street 1501 Mail Service Center Raleigh, NC 27699-1501 Re: NOTICE OF VIOLATION OF 15A NCAC 2N .0603(RLS7), .0901(SECD3), .0906(SECD29)
NC DOT Highway (Equipment Depot) 5105 Beryl Drive (DIV 5), Raleigh, NC 27606 Wake County Facility ID#: 00-0-0000024718
Dear Ms. Keisha Staggers:
On November 10, 2022, I conducted a compliance inspection at the above-referenced facility. I observed that underground storage tanks (USTs) at NC DOT Highway (Equipment Depot) are not in compliance with North Carolina UST regulations (North Carolina Administrative Code [NCAC] 2N "Criteria and Standards Applicable to
Underground Storage Tanks). According to those rules (15A NCAC 2N .0203) you are identified as the owner and/or operator of UST(s) at Nc Dot Highway (equipment Depot).
The following violations of the state rules (15A NCAC 2N) were observed on November 10, 2022 at Nc Dot
Highway (equipment Depot). Following each violation are the actions required to correct the violations: Violation 1: 15A NCAC 2N .0603 RLS7; Failure to investigate a suspected release in accordance with federal regulation 40 CFR 280.52 (as incorporated by 15A NCAC 2N .0603) after a failing tightness test of the spill
containment, the presence of fuel in spill containment buckets or the degradation of the spill containment equipment to the point where that equipment can not reasonably be expected to perform its intended function was observed. Corrective Action(s): Tank owners or operators must investigate a suspected release as directed below. 1) The spill containment bucket failed a tightness test or the condition of the spill containment bucket has
deteriorated such that it may need repairing or replacing. All replaced spill buckets must meet the secondary containment requirements of 15A NCAC 2N .0900. You must complete the actions listed below.
Conduct a tightness test (if one has not already been completed) of the existing spill containment bucket(s) integrity (prior to repair/replacement) in accordance with the manufacturer's recommendations* or a code of practice developed by a nationally recognized association. If a testing standard is not available then you must fill the spill containment bucket(s) with clean water to within 1.5 inches of the top of the spill bucket; mark the water level; wait a minimum of 1 hour and re-check the level. A spill containment bucket fails the tightness test if there has been any change in level. Submit a copy of the test results to the inspector at the address provided. If any spill containment bucket fails the tightness test, you must complete all of the following tasks: (a) Conduct a site check around the spill containment bucket for the tanks listed above in accordance with 40 CFR 280.52(b) (as incorporated by 15A NCAC
2N .0603) using the sampling protocol and methodology of the most recent version of the UST Section Guidelines for Site Checks, Tank Closure, and Initial Response and Abatement and submit, within 30 days of receipt of this notice, a site check report or initial abatement report (whichever is applicable) to the inspector at the address

North Carolina Department of Environmental Quality | Division of Waste Management
217 West Jones Street | 1646 Mail Service Center | Raleigh, North Carolina 27699-1646
919.707.8171
provided; AND (b) Repair or replace the spill containment bucket and test the tightness of the spill containment bucket in accordance with the manufacturer's recommendations, a code of practice developed by a nationally recognized association, or the alternate instructions listed above if no standard is available. All replaced spill buckets must meet the secondary containment requirements of 15A NCAC 2N .0900. Within 30 days of receipt of this notice, unless noted differently above, submit a UST-17B, UST Suspected Release 7 Day Notice, with the results and any supporting information for all equipment repairs, equipment replacements, tightness test(s), and site check
as required in the above sections to the inspector at the address provided. * Proper disposal of liquids in accordance with State and Federal requirements is required. See the attached document Recommended ways to dispose of small quantities of petroleum and petroleum/water mixtures for some suggested methods.
Comment: Tank #101-DSL1 N, and #102-REG N: Please provide a UST-23A form documenting tightness testing after installation of new buckets and a copy of site check report. Violation 2: 15A NCAC 2N .0901 SECD3; Failure to provide secondary containment leak detection monitoring for a UST system or UST system component in accordance with 15A NCAC 2N .0901(i). Corrective Action(s): Immediately conduct the following tightness tests in accordance with the manufacturer's written guidelines and PEI/RP 100, 'Recommended Practices for the Installation of Underground Liquid Storage Systems' and/or configure your secondary containment system to allow interstitial monitoring. Complete all items listed below:
1) Secondary containment monitoring results (e.g. sensor status, monthly log for spill bucket monitored by mechanical float) and/or alarm history results (for electronic sensors) were not maintained for each sensor at least once a month. Secondary containment monitoring results and alarm history results (for electronic sensors) for each interstitial sensor are required to be maintained on a monthly basis. Within 30 days of receipt of this notice, submit the next month’s results.
Within 30 days of receipt of this notice, please submit a copy of the tightness test results (if listed above) using the
listed method along with the next month's secondary containment monitoring results and alarm history (for electronic sensors) and any other supporting documentation showing the above items have been corrected to the inspector at the address provided.
Comment: Dispenser #DSL S, #DSL S SAT, Sump #BULK TRANS, #DSL BULK STP, and #REG BULK STP: Please submit a copy next month's Sensor Status and Alarm History reports for each interstitial sensor. (A copy of these reports must be kept like the 0.2 gph printouts that are kept for the Tank leak detection.) Violation 3: 15A NCAC 2N .0906 SECD29; Failure to perform a tightness test of the primary and interstitial space of spill bucket(s) at installation as required by 15A NCAC 2N .0906(d). Corrective Action(s): 1) Conduct a tightness test of the primary and interstitial space of the spill bucket in accordance with the
manufacturer's written guidelines and PEI RP 100 "Recommended Practice for Installation of Underground Liquid Storage Systems."
Within 30 days of receipt of this notice, please submit the test results on form UST-6D/23A, Triennial UST Spill Bucket Integrity Testing to the inspector at the address provided.
Comment: Tank #101-DSL1 N, and #102-REG N: Please provide a UST-23A form documenting tightness testing after installation of new buckets. Inspection Comment: DSL2 N 6.19 SPILL BUCKET LINER.DSL1 N and REG N spill buckets failed three year tightness testing and were replaced with visigauge spill buckets. Site check has been conducted and waiting on site check report.

North Carolina Department of Environmental Quality | Division of Waste Management
217 West Jones Street | 1646 Mail Service Center | Raleigh, North Carolina 27699-1646
919.707.8171
Notice of Deficiency: Deficiency 1: NCGS 143-215.94NN-SS OPTR4; Failure to maintain compliance with UST regulations which requires Primary Operator retraining as required by NCGS 143-215.94NN - 143.215.94SS. Corrective Action(s): Please perform the following corrective action: 1) Within 30 days of receipt of this notice, the Primary Operator designated for this facility must go to the following website http://tankschool.nc.gov and take the NC DEQ on-line course for retraining. Retraining as a Primary Operator must be completed and a Primary Operator training certificate achieved within 30 days of receipt of this notice. Corrective actions must be completed and reported to the inspector at the address provided within 30 days of receipt of this notice, unless otherwise noted in one of the corrective actions listed above. Assessment of civil penalties may
be recommended for violations described in this NOV, as well as, operating permit revocation/denial unless the violations are corrected. If you believe that the inspection findings are in error, or if you have any questions pertaining to this NOV and/or corrective actions please contact me at [phone] or [e-mail].
Sincerely,
Charley Stangle, Environmental Specialist Division of Waste Management, NC DEQ

Enclosures
cc: Michael Phelps w/ Enclosures (electronic) Files (electronic)
UST-6D/23A Triennial UST Spill Bucket Integrity Testing
If any periodic test fails, a suspected release report must be submitted on a UST-17A form,UST Suspected Release 24 Hour Notice.The suspected
release must be investigated, in accordance with 15A NCAC 2N .0603, and defective equipment repairedor replacedin accordance with 15A NCAC
2N .0404/.0900. Results of the investigation must be submitted on a UST-17B form,UST Suspected Release 7 Day Notice.
The primary containment and interstitial space of the spill bucket shall be tested in accordance with the manufacturer’s written guidelines, PEI/RP100
“Recommended Practices for Installation of Underground Liquid Storage Systems” and/or PEI/RP1200 “Recommended Practices for the Testing and
Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities.”
The primary and secondary walls are both considered to be tested at the same time if vacuum is used to test the interstice.
UST FACILITY
Owner / Operator Name Facility Name Facility ID#
Facility Street Address Facility City County
TESTING CONTRACTOR INFORMATION
Company Name Phone E-mail Address
I certify, under penalty of law, that the testing data provided on this form documents the UST system equipment was tested in accordance with the
manufacturer’s guidelines and the applicable national industry standards listed in 15A NCAC 2N .406 and/or 15A NCAC 2N .0900
Print Name of person conducting test Signature of person conducting test Test Date
Identify Spill Bucket (By Tank
Number, Stored Product, etc.)Tank #Tank #Tank #Tank #Tank #
Tank Size
Product
Indicate units for all measurements
Bucket Manufacturer/Model
Bucket Depth
Construction SW DW SW DW SW DW SW DW SW DW
Bucket Installation Type
Direct Bury
Containment
Sump
Direct Bury
Containment
Sump
Direct Bury
Containment
Sump
Direct Bury
Containment
Sump
Direct Bury
Containment
Sump
Test Type Hydrostatic
Vacuum
Hydrostatic
Vacuum
Hydrostatic
Vacuum
Hydrostatic
Vacuum
Hydrostatic
Vacuum
Liquid and debris removed from
spill bucket?Yes No Yes No Yes No Yes No Yes No
Visual inspection (No cracks,
loose parts or separation of the
bucket from fill pipe.)
Pass Fail Pass Fail Pass Fail Pass Fail Pass Fail
Tank riser cap included in test?Yes No
N/A
Yes No
N/A
Yes No
N/A
Yes No
N/A
Yes No
N/A
Drain valve included in test?Yes No
N/A
Yes No
N/A
Yes No
N/A
Yes No
N/A
Yes No
N/A
Wait time between applying
vacuum/water and start of test
Primary Section Test Hydrostatic: Water level must be within 1.5 inches of top of bucket Vacuum: Apply vacuum of 30 inches WC
Begin I End Test Time I I I I I
Begin I End Reading I I I I I
Secondary Interstice Test Vacuum: Apply vacuum of 15 inches WC
Begin I End Test Time I I I I I
Begin I End Reading I I I I I
Pass/fail criteria: Must pass visual inspection. Hydrostatic: Water level drop of less than 1/8 inchin 1 hour; Vacuum single-walled only:
Maintain at least 26 inches water column for 1 minute; Vacuum double-walled: Maintain at least 12 inches water column for 1 minute
Test Results Pass Fail Pass Fail Pass Fail Pass Fail Pass Fail
Comments –(include information on repairs made prior to testing, and recommended follow-up for failed tests)
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY, DIVISION OF WASTE MANAGEMENT, UST SECTION
1646 MAIL SERVICE CENTER, RALEIGH, NC 27699-1646 PHONE [phone] FAX [phone] http://www.wastenotnc.org/5/2020
Direct Bury w/ Direct Bury w/Direct Bury w/Direct Bury w/Direct Bury w/
Liner Liner Liner Liner Liner
Page 1 (Hydrostatic/Vacuum Test)
Date next Spill Bucket integrity test due (required every 3 years)
NC DOT - EQUIPMENT UNIT NC DOT HIGHWAY (EQUIPMENT DEPOT)00-0-0000024718
5105 BERYL DRIVE(DIV 5)RALEIGH WAKE
Superior Services 828-698-6286 [e-mail]
Joe Collins 11/16/2022
1 3 1 1
10000 10000
REG DSL
OPW 1-2100 OPW1-2100
12.5 12.5
1 1
1401 1402 1406 1407
15.0 15.0 15.0 15.0
11/16/2025
UST-22B
Page 2
Annual Leak Detection Equipment Operability Check
(Automatic Tank Gauge/Handheld LD Equipment)
Inspect the leak detection equipment in accordance with manufacturer guidelines and PEI RP 1200, “Recommended Practices for the Testing and Verification of Spill,
Overfill, Leak Detection, and Secondary Containment Equipment at UST Facilities”.
Results must be maintained for at least one year at the UST site or the tank owner or operator’s place of business, and be readily available for inspection.
UST FACILITY
Owner / Operator Name Facility Name Facility ID#:
Facility Street Address Facility City County
CONTRACTOR/PERSON CONDUCTING INSPECTIONS
Company Name Phone Email Address
I certify, under penalty of law, that the testing data provided on this form documents the UST system equipment was checked in accordance
with the manufacturer’s guidelines and the applicable national industry standards listed in 15A NCAC 2N .0407/.0501.
Print Name of person conducting inspection Signature of person conducting inspection Inspection Date
Tank Volume (gallons):
Tank Diameter (inches):
Product:
Automatic Tank Gauge (ATG)N/A
ATG Brand and Model
1.Using tank stick measure fuel level. Stick value agrees
with Fuel float level displayed on console?Yes No Yes No Yes No Yes No
2.Using tank stick measure water level. Stick value
agrees with Water float level displayed on console?Yes No Yes No Yes No Yes No
3.After removing the ATG probe from the tank, has it
been inspected and any damaged or missing parts
replaced?
Yes No Yes No Yes No Yes No
4.Float moves freely on the stem without binding?Yes No Yes No Yes No Yes No
5.Inch level from bottom of stem when 90% alarm is
triggered.
6.Inch level at which the overfill alarm activates
correspond with value programmed in the gauge?Yes No Yes No Yes No Yes No
7.Inch level from bottom when the water float first
triggers an alarm.
8.Inch level at which the water float alarm activates
correspond with value programmed in the gauge?Yes No Yes No Yes No Yes No
If any answers in Lines 1, 2, or 3 (all ATGs); 4, 6, 8 or 9 (for Mag Probes); 10 or 11 (for Cap Probes) are “No”, the system has failed the test.
Test Results Pass Fail Pass Fail Pass Fail Pass Fail
Spill Bucket Interstice Visual Gauge
Gauge manufacturer
N/A
Gauge removed and visually inspected, and no damage
noted?Yes No Yes No Yes No Yes No
O-ring/seals on entry fitting of gauge are present and not
damaged?Yes No Yes No Yes No Yes No
Float mechanism moves freely up and down?
Indicator arrow rotates when float moved up and down
(Franklin Fueling and OPW) or Indicator shows red, Yes No Yes No Yes No Yes No
Any “No” answer indicates the equipment fails the test.
Test Results Pass Fail Pass Fail Pass Fail Pass Fail
Comments and explanation of failing results and other problems noted during inspection:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY, DIVISION OF WASTE MANAGEMENT, UST SECTION
1646 MAIL SERVICE CENTER, RALEIGH, NC 27699-1646 PHONE [phone] FAX [phone] http://www.wastenotnc.org 12/2020
Note: if the facility is using the ATG to obtain data for SIR then the ATG operability check
must be completed.
Magnetostrictive Probes
Capacitance Probes
10.Initiated diagnostic check of probes from console?Yes No Yes No Yes No Yes No
Diagnostic check does not show any open or shorted
segments in measurement section of probe? (Attach Yes No Yes No Yes No Yes No
11.
diagnostic report to form)
9.Alarm reports attached?Yes No Yes No Yes No Yes No
O-ring/seals on entry fitting of gauge are present and not
float in down position (Emco Wheaton)?
Yes No Yes No Yes No Yes No
NC DOT - EQUIPMENT UNIT NC DOT HIGHWAY (EQUIPMENT DEPOT)00-0-0000024718
5105 BERYL DRIVE(DIV 5)RALEIGH WAKE
Superior Services 828-698-6286 [e-mail]
Joe Collins 11/16/2022
10000 10000
96 96
REG DSL
VR TLS 350 VR TLS 350
211465 OPW Edge Float Gauge Assembly
OPW 211465 OPW 211465

APPENDIX B
Laboratory Report – Soil Samples

3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone [phone] • [phone] • Fax [phone]
Engineering Certification: C-2727 • Geology Certification: C-127
UVF Trilogy Analytical Report

Samples Collected: November 8, 2022
Samples Analyzed: November 9, 2022
Site Name: NCDOT Equipment Depot
Site Address: 5105 Beryl Road, Raleigh, NC
GRI Project Number: 4913

November 9, 2022

AJ Discepolo, GIT
Operator

Technical Procedures
Sample Collection and Handling
Soil samples may be collected using any acceptable procedure. Sampler must use a clean pair of nitrile
gloves for each sample collected. The sample will be placed in a clean, sealable bag (ziplock). Once
collected, the sample must be analyzed immediately or placed on ice. The sample may be kept on ice for
up to 48 hours prior to UVF analyses. If the sample cannot be analyzed within 48 hours, the sample may
be extracted and kept at 4 degrees C for up to 14 days. Proper chain-of-custody procedures must be
followed.
Calibration
The UFV Trilogy has standard calibrations stored for the following analysis:
 GRO
 DRO
 Total PAH
 Target PAH
 Heavy PAH
Prior to use, calibration standards are used to perform a 5-point verification on the factory stored
calibrations for GRO and DRO. The calibration standards used are as follows:
GRO
 0.5 ppm
 1 ppm
 3 ppm
 5 ppm
 10 ppm
DRO
 0.1 ppm
 0.5 ppm
 1 ppm
 3 ppm
 5 ppm
Operation
Sample Extraction
 5mg of soil are weighed into a clean extraction jar
 Methanol is added to the extraction jar to create a 2x or 4x dilution
o 2x Dilution: 10 mL of methanol
o 4x Dilution: 20 mL of methanol
 The extraction jar is shaken for several minutes to thoroughly mix the soil with solvent
(methanol)
 The mixture is allowed to settle for several minutes
 A clean syringe is used to draw liquid from the extraction jar
 A clean filter is attached to the end of the syringe and the liquid dispensed through the filter
into a clean test tube
 This liquid is referred to as the extraction
Dilution Preparation
 An adjustable micropipette is used to precisely measure out the amount of extract needed for
the dilution
Technical Procedures
 The measured out amount of the extract is added to a clean test tube and methanol is added
dilute the extract. Examples of dilutions are shown below:

Extract Amount
500 μL
200 μL
100 μL
50 μL
25 μL

Add Solvent to the
5 mL line
5 mL line
5 mL line
5 mL line
5 mL line
2x Extract
Dilution Factor
20x
50x
100x
200x
400x
4x Extract
Dilution Factor
40x
100x
200x
400x
800x

Sample Analyzation
 The dilution is shaken to thoroughly mix, then poured into a clean glass cuvette
 The desired module is inserted into the UVF Trilogy and the corresponding factory calibration is
selected
 “Measure Fluorescence” is pressed on the touchscreen and the reading is recorded
 The reading should be between the concentrations of the calibration standards (GRO: 0.5-10
ppm; DRO 0.1-5 ppm)
o Reading below the calibration standard range are recorded as below the detection limit
 Detection Limit = (lower range of calibration standards range) x dilution factor
(i.e. a GRO sample with a 100x dilution factor has a detection limit of 50 ppm)
o Readings above the calibration standard range should be further diluted and reanalyzed
o Negative readings are an indication of quenching (see below)
 The reading is multiplied by the dilution factor to calculate the final concentration
 Check suspected contaminated samples for quenching by running additional dilutions
o According to the siteLAB Quick Reference Guide:
“Quenching” can occur when the detector is swamped by too many hydrocarbons or
organic interferences, producing low or negative concentrations. Test the sample at
multiple dilutions to confirm results are linear and accurate.”
QA/QC
Calibration
 The UFV Trilogy will be calibrated daily prior to use
 The calibration results will be saved and entered into the calibration log
Method Blank
 A method blank of methanol will be analyzed following calibration and following the last sample
analyzed for each site
Duplicates
 One duplicate will be analyzed for every 20 samples
 The duplicate will be prepared from the extract of the sample and diluted to the same factor as
the sample analyzed
Project Name:Date Collected:
Project Number:Date Analysed:
Project Manager:Operator:
Sample ID Matrix
Dilution
Factor x
GRO
Output
(ppm)
=GRO Value
(mg/Kg)
Dilution
Factor x
DRO
Output
(ppm)
=DRO Value
(mg/Kg)
DSL-2-.5'Soil 40 <0.5 <20 40 0.21 8.4
RUL-2-.5'Soil 40 <0.5 <20 NR NR NR
UVF Analytical Report
siteLAB UVF Trilogy
11/9/2022
11/8/2022
AJ Discepolo
NCDOT Equipment Depot
4913
William Regenthal
Site:
NCDOT Equipment Depot
Report Date:
11/9/2022
Page:
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