NCG080614_MONITORING INFO_20190614

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/v C&,o� OQ/ y
DOC TYPE
❑HISTORICAL FILE
$. MONITORING REPORTS
DOC DATE
❑A(A Dtp f 1
YYYYMMDD

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted 6/14/19
CERTIFICATE OF COVERAGE NO NCG08 0 6 1 4
FACILITY NAME Rex Oil Company
COUNTY Davidson
PERSON COLLECTING SAMPLES Ben Robinson
LABORATORY Mentech, Inc Lab Cert # 165
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2019
SAMPLE PERIOD X❑ Jan -June ❑ July -Dec
or ❑ Monthly' _ _ (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow []Watersupply ❑SA
X❑Other Class C
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes ono
(if yes, report your analytical results in the table immediately below)
Part A Vehicle Maintenance Areas Monitoring Requirements (If applicable)
No discharge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0-9 0
15
-
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (if applicable)
Outfall
No
Date
Sample Collected,
mo/dd/yr
00556
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 — 9 0
5DO-1
06-05-2019
<5
5
712
i For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmari here
SWU-250 last revised ApiiI 11 2013
P,igc. I of 2

STORM EVENT CHARACTERISTICS
Date 06/05/19 (first event sampled)
Total Event Precipitation (inches) 0 38"
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Nate If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO
REGIONAL OFFICE CONTACT NAME
Marl an orrgrnal and one copy of this DMR, including all "Na Discharge" resorts, within 30 days of receipt of the lab, results (or at end of monitoring period m
the case of "No Discharge" reportsi to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh North Carolina 27699 1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true accurate, and complete I am aware that
the,q are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations "
of Permittee)
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/WS/SLI/npdessw#tab 4
SWi)-250 last revised Ap it 1 1 2013
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted 6/14/19
CERTIFICATE OF COVERAGE NO NCG08 0 6 1 4
FACILITY NAME Rex Oil Company
COUNTY Davidson
PERSON COLLECTING SAMPLES Ben Robinson
LABORATORY Meritech, Inc Lab Cert # 165
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2019
SAMPLE PERIOD X❑ Jan -June ❑ July -Dec
or ❑ Monthly) (month)
RECEJ�DISGARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
JUN 18 2019 X❑Other Class C
CEN rRAL FILES
DWR SECTION PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes Xno
(if yes, report your analytical results in the table immediately below)
Part A Vehicle Maintenance Areas Monitoring Requirements (If applicable)
No discharge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 — 9 0
15
-
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (if applicable)
Outfall
No
Date
Sample Collected,
mo/dd/yr
00556
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
- --
15
50 or 100 see permit
6 0 — 9 0
SDO-1
06-05-2019
<5
5
712
i For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU-250 last revised April 11 2013
Page 1 of 2

STORM EVENT CHARACTERISTICS
Date 06/05/1 9(first event sampled)
Total Event Precipitation (inches) 0 38"
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (Inches)
Note if you report a sample valve in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART AAND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART 11 SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO
REGIONAL OFFICE CONTACT NAME
Marl an orrarnal and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results or at end o monrtorrn errod in
the case o "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete I am aware that
thepq are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations "
ture of Permittee)
67 �a
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/,Wq/ws/su/npdessw#itab-4
S W U-211
last revised April 11 2013
Pagc 2 of 2

-e
1
Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted 11/26/18
CERTIFICATE OF COVERAGE NO NCG08 0 6 1 4
FACILITY NAME Rex Oil Company
COUNTY Davidson
PERSON COLLECTING SAMPLES Ben Robinson
LABORATORY Meritech, Inc Lab Cert # 165
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2018
SAMPLE PERIOD ❑ Jan -June 0 July -Dec
or ❑ Monthly' (month)
RECEA/ '
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
DEC 0 3 20fd ❑Zero -flow [:]Watersupply ❑SA
X❑
CEfv T +WL FILES Other Class C
11WR SECTION PLEASE REMEMBER TO SIGN ON THE REVERSE
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes Xno
(if yes, report your analytical results in the table immediately below)
Part A Vehicle Maintenance Areas Monitoring Requirements (If applicable)
❑ No discharge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 — 9 0
15
-
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable)
Outfall
No
Date
Sample Collected,
mo/dd/yr
00556
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 — 9 0
SDO-1
11-12-2018
<5
1 58
742
t For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU-250 last revised April 11 2013
Page I of 2

STORM EVENT CHARACTERISTICS
Date 11/12/18(first event sampled)
Total Event Precipitation (inches) 2 46"
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDANCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES [:]NOV(]
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this DMR, including all "No Discharge" reports, within 30 des of receipt of the lab results (or at end of monitoring'period in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system or those persons
directyqesponsible for gathering the information the information submitted is to the best of my knowledge and belief true, accurate and complete I am aware that
therq ar significant penalties for submitting false information including the possibility of fines and imprisonment for knowing violations "
re of Permittee)
! r G(7
(Date)
itional copies of this form may be downloaded at http //portal ncdenr orp/web/wct/ws/su/npdessw#tab 4
S W U-25 0
last revised April 11 2013
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted 11 /26/18
CERTIFICATE OF COVERAGE NO N0008 0 6 1 4
FACILITY NAME Rex Oil Company
COUNTY Davidson
PERSON COLLECTING SAMPLES Ben Robinson
LABORATORY Merltech, Inc Lab Cert # 165
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2018
SAMPLE PERIOD ❑ Jan -June X❑ July -Dec
or ❑ Monthly) (month)
DISCHARGING TO CLASS ❑ORW ❑HQW []Trout ❑PNA
❑Zero -flow []water supply ❑SA
X❑Other Class C
PLEASE REMEMBER TO SIGN ON THE REVERSE -i
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes X-no
(if yes, report your analytical results in the table immediately below)
Part A Vehicle Maintenance Areas Monitoring Requirements (If applicable)
❑ No discharge this penodl
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
ry Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 — 9 0
15
-
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable)
O utfal I
No
Date
Sample Collected,
mo/dd/yr
00556
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 — 9 0
SDO-1
1 11-12-2018
<5
58
742
I For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SNVU-250 last revised April 11 2013
Page I of 2

STORM EVENT CHARACTERISTICS
Date 11 /12/18 (first event sampled)
Total Event Precipitation (inches) 2 46"
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO
REGIONAL OFFICE CONTACT NAME
Marl an original and one copy of this DMR including all "No Discharge" reports, within 30 days of receipt of the lab results for at end of monitoring period in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699 1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify, under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
dire I responsible for gathering the information, the information submitted is to the best of my knowledge and belief, true accurate, and complete I am aware that
ther re significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations "
of Permitteej
! !
91
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wgZws(su/npdessw#tab 4
t'f
SWU-2--)0
last revised April 1 ] 2013
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted 6/22/18
CERTIFICATE OF COVERAGE NO NCG08 0 6 1 4
FACILITY NAME Rex Oil Company
COUNTY Davidson
PERSON COLLECTING SAMPLES Ben Robinson
LABORATORY Mentech, Inc Lab CErt
Comments on sample collection or analysis
# 165
REC Iv D
3U� 2 7 z018
DvvR sEcFILESN,
SAMPLE COLLECTION YEAR 2018
SAMPLE PERIOD X❑ Jan -June ❑ July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
X❑Other Class C
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _yes Xno
(if yes, report your analytical results in the table immediately below)
Part A Vehicle Maintenance Areas Monitoring Requirements (If applicable)
❑ No discharge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 — 9 0
15
-
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable)
Outfall
No
Date
Sample Collected,
mo/dd/yr
005S6
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (5GT-HEM), mg/L
Total Suspended Solids,
mg/L
pH, Y
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 -- 9 0
SDO-1
5-29-2018
<5
728
731
For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU-250 last revised April 11 2013
Page I of 2

STORM EVENT CHARACTERISTICS
Date 5/29/18 (first event sampled)
Total Event Precipitation (inches) 0 22"
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORF BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO
REGIONAL OFFICE CONTACT NAME
Marl an original and one copy of this DMR, including all "No Discharge" reports, within 30 days o r elpt of the lab results (or at end o monitorrng period In
the caseoffNo Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699 1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"t certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief true accurate, and complete I am aware that
ther"re significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations "
of Perrnmee)
2 9/
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wp/ws/su/npdessw#tab-4
SW U-250
last revised April 11 2013
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted February 27, 2017
CERTIFICATE OF COVERAGE NO NCG080614 RECEI 1/ E&PLE COLLECTION YEAR 2013
FACILITY NAME Rex Oil SAMPLE PERIOD Jan -June X July -Dec
COUNTY Davidson MAR 13 2017 or []Monthly' (month)
PERSON COLLECTING SAMPLES Lynne Hays CENTRAL EILE91SCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY R&A Lab Cert # 34 Comments on sample collection or DWR SECTION ❑Zero -flow [:]WaterSupply ❑SA
analysis ❑Other
Part A Vehicle Maintenance Areas Monitoring Requirements
PLEASE REMEMBER TO SIGN ON THE REVERSE -)
❑ No discharge this period'
Outfall
No
Date 1
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
V Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0-9 0
15
-
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?_ yes _no
(if yes, report your analytical results in the table immediately below)
PartB Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
Outfall
No
Date
Sample Collected,
mo/dd/yr
00556
00530
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/I
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 - 9 0
SDO #1
10/7/16
NA/No Flow
NA/No Flow
NA/No Flow
SDO #2
10/7/16
<5
7380
7 2
i For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU 250 East rep is( d October 25 2012
11acae I of 2

_STORM EVENT CHARACTERISTICS
Date 10/7/16 (first event sampled)
Total Event Precipitation (inches) 44
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
R PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES x NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES x NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results (or at end of monitorinq period in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify, under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true accurate and complete I am aware that
there are significant penalties f submitting false information including the possibility of fines and imprisonment for knowing violations "
Lynne Hays for Rex Oil Company February2 2016
(Signature of Permittee) (Date)
Additional copies of this form may be downloaded at htt portal ncdenr org/webjw9/ws/suLnpdessw#tab-4
SWU 250 last re%ised October 25 2012
Page 2 of 2

. I A1W
k�
f Semi-annual Stormwater Discharge Monitoring Report yed000
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted March 29, 2016
CERTIFICATE OF COVERAGE NO NCG080614 RECEIVED
FACILITY NAME Rex Oil APR 0.5 zGiL
COUNTY Davidson
PERSON COLLECTING SAMPLES Lynne Hays CENTRAL FILES
LABORATORY R&A Lab Cert # 34 Comments on sample ncoNection &ON
analysis
Part A Vehicle Maintenance Areas Monitoring Requirements
AIN
SAMPLE COLLECTION YEAR 30" C; ' f
SAMPLE PERIOD xJan-June July -Dec 406
or ❑ Monthly' (month);tl
DISCHARGING TO CLASS ❑ORW ❑HQW [—]Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
REcEItVED [:]Other
APR 0:) ,,,PLEASE REMEMBER TO SIGN ON THE REVERSE 4
CENTRAL I`ILE%5
DWR SECTION
❑ No discharge this period'
E OutfallI
T No yhn.Sample
k
° 'Date
Collected,
mo/dd/yr
�'
00530
_ 00400 , : ' _
Q 00556 -y
a 'Total Suspended
Solids, mg/L
'�pH, sty`,
Standard units,-,z,y
°Non -Polar Oil and Grease/TPH'EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual aierage gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 = 9 0
15
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes _no
(if yes, report your analytical results in the table immediately below)
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
Outfall—
No
_
W Dates
Sample,Collected,
s mo/dd/yr
00556
00530_
00400
Non-Polar;Oil and Grease/TPH EPA Method
k '
11664 (SGT-HEM)„mg/L -
Total Sus0endedfSolids,
4
mg/L I' _
Standard units
.5ex�
Permit Limit
. ,� k'p
r rz;
rr Y
w 15
f�i-'
50 or 100=see permit
:�'
6 0= 9 0
SDO #1
03/19/16
NA/No Flow
NA/No Flow
NA/No Flow
SDO #2
03/19/16
<5
796
77
i For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU 250 last re%ised October 25 2012
Page I of 2

STORM EVENT CHARACTERISTICS
Date 03/19/16 (first event sampled)
Total Event Precipitation (inches) 10
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES x NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES x NO ❑
REGIONAL OFFICE CONTACT NAME
Mail on original and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt a f the lab results (or at end of monitoring period in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699 1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete I am aware that
there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations '
.44-
Lynne Hays for Rex Oil Company
(Signature of Permittee)
March 29, 2016
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/ws/su/npdessw#tab-4
S W t1-250
last re► ised October 25 2012
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted August 21, 2015
CERTIFICATE OF COVERAGE NO NCG080614 SAMPLE COLLECTION YEAR EIL
SAMPLE PERIOD Jan -June x July -Dec
FACILITY NAME Rex Oil y
COUNTY Davidson or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Lynne Hays DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY R&A Lab Cert # 34 Comments on sample collection or ❑Zero -flow ❑Water Supply ❑SA
analysis RECEIVED ❑Other
Part A Vehicle Maintenance Areas Monitoring Requirements
AUG 2 4 2015
CENTRAL FILES
DWR SECTION
PLEASE REMEMBER TO SIGN ON THE REVERSE -)
❑ No discharge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 -- 9 0
15
-
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes _no
(if yes, report your analytical results in the table immediately below)
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
Outfa ll
No
Date
Sample Collected,
mo/dd/yr
00556
00S30
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 — 9 0
SDO #1
08/06/15
No Flow
No Flow
No Flow
SDO #2
08/06/15
103
489
88
4-
1 For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU 2-)0 last rel, ised October 2i 2012

STORM E,JENT CHARACTERISTICS
Date 08/06/15 (first event sampled)
Total`Event Precipitation (inches) 13
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this OMR, including all "No Discharge" reports, within 30 days of receipt of the lab results (or at end of monitoring Period in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
'I certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information the information submitted is to the best of my knowledge and belief, true accurate, and complete I am aware that
there are significant penalties for submitting false information including the possibility of fines and imprisonment for knowing violations "
Lynne Hays for Rex Oil �Crnpany
(Signature of Permittee)
August 21, 2015
(Date)
Additional copies of this form may be downloaded at http//portal ncdenr org/web/wq/ws/su/npdessw#tab 4
SWU-250
last re+ iced October 25 2012
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report xbl*
s for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted April 21, 2014
CERTIFICATE OF COVERAGE NO NCGO80614
FACILITY NAME Rex Oil
RECEIVED
APR 2 3 2015
COUNTY Davidson
PERSON COLLECTING SAMPLES Lynne Hays CENT
DWR S��FILE
TON
LABORATORY R&A Lab Cert # 34 Comments on sample collection or
analysis
Part A Vehicle Maintenance Areas Monitoring Requirements
SAMPLE COLLECTION YEAR-Bi3�� y '
SAMPLE PERIOD xJ n-Jun July -Dec
a e Ju y
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW []Trout ❑PNA
❑Zero -flow ❑Water Supply [-]SA
[]Other
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
❑ No discharge this period'
Outfall
` No
5
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664,(SGT-HEM), mg/L
New Motor Oil{Usage,-
Annual average gal/ no
Benchmark
-
50 or 100 see permit
Within 6 0-9 0
'=15
—
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month' _yes no
(if yes, report your analytical results in the table immediately below)
PartB Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
Outfall
No
Date
Sample Collected,
mo/dd/yr
00556
00530 a
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L z
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 - 9 0
SDO #1
03/27/15
NA
NA
NA
SDO #2
03/27/15
105
64
78
i For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU-250 last rep used October 25 2012
I' igc 1 of 2

STORM EVENT CHARACTERISTICS
Date 03/27/15 (first event sampled)
Total Event Precipitation (inches) 27
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note if you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one co -y of this DMR, inch al! "No Discharge" reports, within 30 days of receipt of the lab results (or at end of monitoring period in
the case of "No Discharge" reportsl to
Division of Water Quality
Atin DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
'I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete I am aware that
there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations
Lynne Hays for Rex Oil Company
(Signature of Permittee)
April 21, 2015
(Date)
Additional copies of this form may be downloaded at http1/portal ncdenr org/webjwq/ws/su/npdessw#tab-4
SWU-250
last reN ised October 25 2012
I'a-e 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted December 17, 2014
CERTIFICATE OF COVERAGE NO NCGO80614
FACILITY NAME Rex Oil
COUNTY Davidson�+'VE
PERSON COLLECTING SAMPLES Lynne Hays QEC ]a z
LABORATORY R&A Lab Cert # 34 Comments on sample collection or 014
�'tN
analysis p� L
Part A Vehicle Maintenance Areas Monitoring Requirements
SAMPLE COLLECTION YEAR 2013
SAMPLE PERIOD Jan -June xJuly-Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW [—]Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
❑Other
PLEASE REMEMBER TO SIGN ON THE REVERSE -->
❑ No dischorge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530
00400
00556
Total Suspended
Solids, mg/L
pH,
Standard units
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 — 9 0
15
-
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes _no
(if yes, report your analytical results in the table immediately below)
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
Outfall
No
Date
Sample Collected,
mo/dd/yr
00556
00530 '
00400
Non -Polar Oil and Grease/TPH EPA Method
1664 (SGT-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 — 9 0
SDO #1
11/17/14
Not able to sample
Not able to sample
Not able to sample
SDO #Z
11/17/14
142
706
85
i For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
SWU-250 last revised October 25, 2012
Page I of 2

STORM EVENT CHARACTERISTICS
Date 11/17/14 (first event sampled)
Total Event Precipitation (inches) 10
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 £XCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an oriainal and one coriv of this OMR. includina all "No Discharge" reports. within 30 days of receipt of the lab results !or at end of monitorina Denod in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete I am aware that
there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations "
A.�l
Lynne Hays for Rex Oil Company December 17, 2014
(Signature of Permittee) (Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/ws/su/npdessw#tab-4
SWU-250 last re,, ised October 25 2012
Page 2 of 2

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted May 25, 2014
CERTIFICATE OF COVERAGE No NCGO80614 SAMPLE COLLECTION YEAR 2013
FACILITY NAME Rex Oil SAMPLE PERIOD xJan-June July -Dec
COUNTY Davidson or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Lynne Hays 15CHARGING TO CLASS ❑ORW ❑HQW [:]Trout ❑PNA
LABORATORY R&A Lab Cert # 34 Comments an sample collection4., � ❑Zero -flow ❑WaterSupply [:]SAanalysis j�� ❑Other
PLEASE REMEMBER TO SIGN ON THE REVERSE
Part A Vehicle Maintenance Areas Monitoring Requirements C+�pW0poG ❑ No discharge this period'
Outfall
No
Date
Sample Collected,
mo/dd/yr
00530 -
00400
00556
Total Suspended x
Solids; mg/L
pH,
Standard units_
Non -Polar Oil and Grease/TPH EPA
Method 1664 (SGT-HEM), mg/L
New Motor Oil Usage,
-Annual average gal/mo
Benchmark-
-
50 or 100 see permit
Within 6 0 — 9 0
151—
-
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _ yes _no
(if yes, report your analytical results in the table immediately below)
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
Outfall
No
_ Date
Sample Collected,
mo/dd/yr
00556
00530
00400 L
Non=Polar Oil and?Grease/TPH EPA Method
1�;y 1664 (SGT'-HENI), mg/L � , '
Total Suspended Solids,J '
= mg/L E
- ` 'pW y "
Standard units
Permit°Limit `
"` - 1
�} 15
rs 50 or 100 see -permit r-
6 0 -9 0
SDO #1
04/25/14
<5 0
952
862
SDO #2
04/25/14
<5 0
876
866
' For sampling periods with no discharge at any single outfal1, you must still submit this discharge monitoring report with a checkmark here
SWU-250 last revised October 25, 2012
Page 1 of 2

STORM EVENT CHARACTERISTICS
Date 04/25/14 (first event sampled)
Total Event Precipitation (inches) 32
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches)
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See General Permit text
FOR PART A AND PART B MONITORING RESULTS
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART II SECTION B
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART II SECTION B
• TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OUTFALLa YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lob results (or at end of monitoring period in
the case of "No Discharge" reports) to
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure
that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete I am aware that
there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations "
Lynne Hays for Rex Oil CL n
(Signature of Permittee)
May 14, 2014
(Date)
Additional copies of this form may be downloaded at htt ortal ncdenr org/web/wg/ws/su/npdessw#tab-4
S W U-250
last revised October 25, 2012
Page 2 of 2

EnviroUnc
Environmental Compliance Solutions
May 14, 2014
Division of Water Quality
Attn Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject Stormwater Discharge Outfall Monitoring Report
Rex Oil Facility
General Permit Number NCG080000
Please find enclosed the Stormwater Discharge Outfall Monitoring Report for the Rex Oil
site located at 1000 Lexington Avenue in Thomasville If you have any questions please
contact us at [phone]
Yours truly,
Lyle Ha s�
Y Y
109 Gentle Pond Court 0 Winston Salem, NC 27107 0 Phone [phone] Fax [phone]