NCG080791_MONITORING INFO_20190613

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO
Iv U rJ "/ I
DOC TYPE
❑HISTORICAL FILE
MONITORING REPORTS
DOC DATE
❑ acd��3
YYYYMMDD

ENVIRONMENTAL CORPORAVON
June13 2019
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCGO80000
CO[ NCGO80791
To Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989 • 800-881-1098 • Fax [phone]
www shamrockenviro com • info@shamrockenviro corn
RECEI EF
JUN 133 2019
CENTRAL FILES
DINR SECTION
Please find enclosed documents This data consists of second scmr-annual sampling The results
of the sampling event demonstrate conformance with permit standards
For any questions related to this matter, please contact me at 800 881 1098
Sincerely,
Jun lulgswoi i CIH, C , CHMM, REM
Dir for of Health, Safety &, Environmental
Enclosure
Cc Tim Hyatt
Chris Fieeman
Steve Davis
Greg Kiser
File SWDMRCo%Lr R Page 1 of 1

A yx;wqjl
WNW
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For gindonce on�fdhng out this form, please visit btto./loot t<al.ncdcili .oi c/wcb/It /nodes-Stormwater/
Permit No of Certiflcate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 4/05/2019
Time of Inspection 0850 am
Total Event Precipitation (inches) 0 71
Was this a "Representative Storm Event" or Measureable Storm Event" as defltied by the pei mit?
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring i equirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" of during a measureable storm event " Howevei,
some permits do not have this requirement Please i efer to these definitions, if applicable
A "representative storm event" is a storm event that measures gi eatet than 0 1 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greatei than
0 3 inches has occur red A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable stoi m event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the perinittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signAure, i certify thA this report is accur e and complete to the best of my knowledge
(SignaturetofPermittee of
Page 1 of 2
SWU 242 last modified 7/31/2013

1 Outfall Description
Outfall No SWO01 Structure (pipe, ditch, etc ) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area
Light industrial
2 Color Desc> >be the color of the dischai ge using basic colors (red, brown, blue, etc ) and tint
(light, medium, dark) as descriptors Cleai
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc ) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 �2?
3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface coves ed with floating solids
L, 2 3 4 5
b Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
1 2 3 4 5
7 Is thei e any foam in the stormwater discharge? Yes
8 Is thei a an oil sheen in the stoi mwater discharge? Yes
9 Is there evidence of erosion or deposition at the outfall? Yes 1co
10 Other Obvious Indicators of stormwater Pollution
List and describe
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 List modified 7/31/2013

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted May 17, 2018
CERTIFICATE OF COVERAGE NO N0008 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY —Me ritechShamrock Lab Cert # 165/5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2019
SAMPLE PERIOD ® Jan -June ❑ July -Dec
or ❑ Monthly' _ _ (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow [:]WaterSupply ❑SA
®Other WS-V, NSW
PLEASE REMEMBER TO SIGN ON THE REVERSE ­311
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 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
-
Part B Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable)
Outfal l
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
SW-001
04/05/2019
<5 mg/L
14 mg/L
71
For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
S WU-250 last re-, iced April 11 2013
Page I of 2

STORM EVENT CHARACTERISTICS
Date 04/05/2019 (first event sampled)
Total Event Precipitation (inches) 057
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 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 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 DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results (or at end of monitoring period 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
there are significant penaltiqs-fgf submitting fall information, including the possibility of fines and imprisonment for knowing violations "
(Signature of Permittee
_6/13/2019
(Date)
Additional copies of this form may be downloaded at http //Portal ncdenr orR/web/wq/ws/su/npdessw#tab-4
SWU-250
last revised April 11 2013
Page 2 of 2

A
SHAMROCK
ENVIRONMENTAL CORPORATION
4
H by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected April 5, 2019 0850 firs
Sample ID SW-001
Sample Analyzed April 5, 2019 0900 firs
Sample ID SW-001
Results 7 1 pH Units
Results Certified By Qd
Jim Hollinp_sworth
Date April 5, 2019

Meritech, Inc.
Environmental Laboratory
-wLaboratory Certification No 165
Contact Chris Freeman
Client Shamrock Environmental Corp
6106 Corporate Park Di ive
Brown Summit, NC 27455
Meritech Work Order # 04081904 Sample 519080 Grab
Parameters Result Anal3�sls_Date
Total Suspended Solids 14 mg/L 4/10/19
Oil & Gt ease (HEM) <5 mg/L 4/15/19
Report Date 4/17/2019
Project Patton Ave
PO # 05-TKC-19-5999
Date Sample Rcvd 4/8/2019
Reporting Limit
2 5 mg/L
5 mg/L
4/5/19
Method
SM 2540 D
EPA1664B
I hereby certify that I have reviewed and approve these data
LaboratofyAre—preventative
642 Tamco Road, Reidsville, North Carolina 27320
tel [phone] fax [phone]

amlis Chain of Custody Record (COC)
V NPDES#
Client �/�ylnj(J� Phone
Address ` Lal�a c--,&CO Fax
� SI'� Email tn1
Project T�lari_Sh/
P O # 1 r2C
Attention , ' r Turn Around rate'
'RUSH work needs prior approval,
How would you like yoY report sent? harges Apply
Circle all that apply Email(preterredl, Fax ail std o a s) 3s 24 rs
®
ERIT���y INC.
ENVIRONMENTAL LABORATORIES
642TamcD Rd Phone [phone]
Reidsville NC 27320 Fax [phone]
ti
Email info@meritechlabs cam
www merltechlabs com
Sample Location and/or ID #
Sampling Dates & Times
Person Taking Sample (sign/Print)
Lab Use Only
Start
End
Camp?
Grab?
#af
Copt
Test(s)
Required
On Ice?
Yes / No
pH OK7
Cl OK7
Date
Time
Date
Time
L'
W�t-- T<Z 0
V
Temperature Upon
Receipt,� y c
rY
Method of
Shipment
Dechlorinatien (<0 5 ppm) of Ammonia Cyanide Phenol and TKN samples must be done in the field prior to reservation "*'
Comments for"
Compositor#
UPS
Jug #
Fed Ex
Are th a results for regulatory p pos s7 Yes No
R ort results In mg/L mg/kg [ ug/L
Hand Delivery
h
Relinq ,,Y a Time.
Received by Date Time
E)pV
Other
Relingm h by Ti a
�--
Re Date ime
t Z3
Relmqui e b �ye Tinge r
L
ed h Time
M
Z�'7( v

National Water Information System: Web Interface
USGS Water Roaources
Click to hideNews Bulletins
USGS Home
Contact USGS
Search USGS
u to bteua� 1 ogVUJ 9r�, grit„,,,,
Surface water • United States • GO
pain Un. 3404-0117.14 Mai
USGS 02095000 SOUTH BUFFALO CR NEAR GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this Alto Time series Daily data GO
Click to hidestation-specific text
This station is operated in cooperation with the City Qf Grggagbgrro-, North Carolina
0
GRIEVi5138140
Boating y-&pj
This station managed by the South Atlantic WSC Raleigh Field Office
Available Parameters
Period of Record
❑ All 3 Available Parameters for this site
00045 Precipitation(Sum)
1998-08-01 2019-06-12
❑ 00060 Discharge(Max ,Min ,Mean)
1928-09-01 2019-06-12
O 00065 Gage height(Max ,Min ,Mean)
1998-07-21 2019-06-12
Output format
O Graph
O Graph w/ stats
O Graph w/ meas
O Graph w/ (up to 3) parms
OTable
OTab-separated
Days (4) =%Mmmary of all AM011able
data for tbi.5 .5119
s
y_statement
Begin date
2019 04-01
End date
2019 04-05
Daily Sum
Precipitation,
DATE Apr
120191
01 0 OOA
ai o o2A
03 0 00A
GO

Explanation
I A I Approved for publication -- Processing and review completed
Ci7
Accessibility Plog-Ins FOIA Privacy Policies and Notices
U.S. QepartMeat gt thg Interior l U.S. Geologj��ey
Title USGS Surface -Water Daily Data for the Nation
URL https //waterdata usgs gov/nwis/dv?
Page Contact Information North Carolina water Data 5uQport Team
Page East Modified 2019 06-13 17 41 12 EDT
0 97 0 87 cawwOl

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Energy, Mineral and Land Resources General Permit No NCG080000
Date submitted 2 11 2019
CERTIFICATE OF COVERAGE NO NCGO8 0 0 0 0 (, O
FACILITY NAME Shamrock Environmental Corporation Iv C,
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock Lab Cert # 165//5481
Comments on sample collection or analysis
g o 771 SAMPLE COLLECTION YEAR 2018
SAMPLE PERIOD ❑ Jan -June 0 July -Dec
or ❑ Monthly' month
ECEIVEDDISCHARGING TO CLASS ❑ORW ❑HQW [—]Trout ❑PNA
❑Zero -flow [—]Water Supply ❑SA
FEB 15 Zals MotherWS V NSW
;,ENTRA,L FILES PLEASE REMEMBER TO SIGN ON THE REVERSE 4
DWR SECTION
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new oil per month? ❑ yes ■0 no (lf yes, complete Part A)
Part A Vehicle & Equipment Maintenance Areas Monitoring Requirements (If applicable) ❑ No discharge this period'
Outfall No
Date Sample Collected'
(mo/dd/yr)
24-hour rainfall amount,
Inches3
Non -Polar Oil & Grease
mg/L
Total Suspended Solids,
mg/L
New Motor or Hydraulic Oil Usage,
gal/mon
Benchmarks
_
-
15
100 or 50"
-
Parameter Code
-
46529
00552
C0530
NCOIL
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall
'For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
'The total precipitation must be recorded using data from an on site rain gauge Unattended sites may be eligible for a waiver of the rain gauge requirement
' See General Permit text, Table 1, identifying the especially sensitive receiving water classifications where the more protective benchmark applies
Note Results must be reported in numerical format For exam le do not report Below Detection Limit, BDL, <PQL, Non -detect, ND, or other similar non -
numerical format When results are below the applicable limits, they must be reported in the format, "<XX mg/L", where XX is the numerical value of the
detection limit, reporting limit, etc in mg/L Conversely, where fecal coliform results exceed the dilution upper limit, report the result as ">XX"
Permit Date 11/1/2018-5/31/2021 SWU 248 last revised 11/1/2018
Page 1 of 2

PartB Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable) ❑ No discharge this period1
Outfall
No
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Sample Collected'
mo/dd/yr
Total Suspended
Solids,
mg/L
pH,
Standard units
Non -Polar Oil &
Grease,
mg/L
Permit Limit
_
-
100 or 504
6 0 — 9 0
15
Parameter Code
-
46529
C0530
00400
00552
SW 001
12 202018
1 44
35
6 19
<5
Footnotes from Part A also apply to this Part B
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 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 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 DEMLR REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mall an oriainal copv of this DMR, includina 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 Enquiry 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 "
Signature of
'z-t 1l 6'1
Date
Permit Date 11/1/2018-5/31/2021 SWU 248, last revised 11/1/2018
Page 2 of 2

Kra -
Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance of filling ow /his form please i vt https I/deq nc gov/aboutldivisions/energy-mineral-land-resources/
npdes-stormwater-gps
Pennit No N/C/G/$ /0 / 0 /0 /0 / 0 / or Certificate of Coverage No NICIGIGl01$101719 / 1
Facility Name SHAMROCK ENVIRONMNETAL CORPORATION
County GUILFORD
Inspector JIM HOLLINGSWORTH
Date of Inspection 12 20 2018
Time of Inspection 1845
Total Event Precipitation (inches) 1 44
Phone No 336 375 1989
All pen -nits require qualitative monitoring to be performed during a "measurable storm event ' i
A "measurable storm e,% ent" is a storm event that results in an actual discharge from the pennitted site
outfall The previous measurable storin event must have been at least 72 hours prioi The 72-hour storm
interval does not apply it the pennittee is able to document that a shorter interval is representative for
local stone events during the sampling period, and the pennittee obtains approval from the local DEMIIR
Regional Office
By this signature, I certify that this report is accurate and complete to the best of tiiy knowledge
(Signature of Penni"e or Designee)
1 Outfall Description
Outfall No 001
Receiving Stieam
S Buffalo Creek
Structure (pipe, ditch, etc ) Pipe0tch
Describe the industrial activities that occur within the outfall drainage area I-Ignt inaustnai transport
tank Cleaning
Page 1 of 2
S%VU 242 1 JS1 mndilLcd 06r01/2018

2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc ) and tint
(light, medium, dark) as descriptors near
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil, weak
chlorine odor, etc ) None
4 ClaritN Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy
coo®o05
5 Floating Solids Choose the number which best describes the amount of floating solids in the
stormwater discharge, where I is no solids and 5 is the surface covered with floating solids
0 0 0 0 0
6 Suspended Solids Choose the number which best describes the amount of suspended solids in
the storinwater discharge, where 1 is no solids and 5 is extremely muddy
0 * @ @ 0
7 is there any foam in the storinwater discharge? Yes No
8 Is there an oil sheen in the storinwater discharge r ►'es No
9 is there evidence of erosion or deposition at the outfalh Yes V No
10 Other Obvious Indicators of Stormwater Pollution
List and describe None
Note Loiv clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition may be
indicative of pollutant exposure 1 hese conditions f►arrant further inNestigation
Page 2 of 2
S W U 242 1 tit modil icd 06101/20 I S

A
SHAMROCK
ENYIRONMENTAE CORPORATION
A
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected December 20, 2018 1845 hrs
Sample ID SW-001
Sample Analyzed December 20, 2018 1855 hrs
Sample I SW-001
Results 6 2 pH Units
Results Certified By — 0- :�i
m Hol in orth
Date ecember 20, 2018

Chain of Custody Record (COC)
�-- NPDES#
Client QM6� �Y_^ Phone
Address Fax
Email
Project
P O #
Attention I Turn Around Time`
How w uld you ! e your report sent? 'RUSH work needs prior approval
Circle all that apply rred), Fax, Mail 5td 10 a s) 244 a�s
(pr e_ i D� s
il
NiERITECH, INC.
Aft ENVIRONMENTAL LABORATORIES
642 Tamco Rd Phone [phone]
i
Reidsville NC 27320 Fax [phone]
Email info@meritechlabscam
www m e ntec h la bs co m
Sample Location and/or ID #
Sampling Dates & Times
Pe Ta In salrpl�Ign/Print) `
(�`jj
Lab Use Only
Start
End
Comp?
Grab?
#of
Cont
Test(s)
Required
On Ice? Yes
/ No
pH OK?
CI OK?
Date
Time
Date
Time
D
b 3
Temperature Upon Receipt
Method of
Shipment
Dechlorination (<0 5 m) of Ammonia Cyanide, Phenol and TKN samples must be done In the field priorto preservation
Comments f _ n �Z'L1) h
V f
Compositor
UPS
Jug it
Fed Ex
re these cults for regulatory purposes? Yes (ago-
Report results in mg/L mg/kg Q, ug/L
Hand Delivery
Relinquish by . / Dat , Time ,��
V dz-�2I I
Received by Date Time
r�
�E Other
s,
Ftelinquisheof I V Date Time
Rec Ive by Date Time
Relinquished by Date Time
Rec y L D t Time I(J
V r /

Merltech, Inc,
Environmental Laboratory
Laboratory Certification No 165
Contact Jim Hollingsworth
Client Shamrock Environmental Corp
6106 Corporate Park Drive
Brown Summit, NC 27455
Meritech Work Order # 12211803
Parameters
Total Suspended Solids
Oil & Grease (HEM)
Sample SQ001 Grab
Result Analysis Date
35 mg/L 12/26/18
<5 mg/L 1/1/19
Report Date 1/3/2019
Date Sample Rcvd 12/21/2018
12/20/18
Repox_trng Limit Method
2 5 mg/L SM 2540 D
5 mg/L EPA 1664B
I hereby certify that I have reviewed and approve these data A�z
Lahora&ffy Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel [phone] fax [phone]

l 1 1 i 1
National Water Information System Web Interface
USGS water Resources
Click to hideNews Bulletins
• Please see news--on-new formats
• Full News
USGS Home
Contact USGS
Search USGS
Data Cate o Geographic Area
er • Surface watI United States • GO
USGS 02095000 SOUTH BUFFALO CR NEAR GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data • GO
Click to hidestation-specific text
r
This station is operated in cooperation with the Cry of Greensboro, North Carolina
M
n AFF -1:80RO
Boating safety tips
This station managed by the South Atlantic WSC Raleigh Field Office
Available Parameters
Period of Record
O All 3 Available Parameters for this site
00045 Precipitation (Sum)
1998-08-01 2019-02-10
❑ 00060 Discharge(Max ,Min ,Mean)
1928-09-01 2019-02-10
❑ 00065 Gage height(Max ,Min ,Mean)
1998-07-21 2019-02-10
Output format
O Graph
O Graph w/ stats
O Graph w/ meas
O Graph w/ (up to 3) parms
OTable
O Tab -separated
Days (3) Summary of all available
to for this site
______—__Instantaneous-data availability statement
-- or --
Begin date
2018-12-17
End date T
2018-12-20
Daily Sum
Precipitation,
total, inches
DATE Dec
2018
i7 0 OOP
18 O DOP
19 0 OOp

Explanation
ElProvisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation gf terms
Subscribe for sy5tgM Chan,gU
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U.S. Department of the Interior I J.S. Geological_Survey
Title USGS Surface -Water Daily Data for the Nation
URL https //waterdata usgs gov/nwis/dv?
Page Contact information North Carolina Water Data Support Team
Page Last Modified 2019-02-11 16 45 29 EST
0 93 0 86 caww6l

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted May 17, 2018
CERTIFICATE OF COVERAGE NO NCG08 0791 SAMPLE COLLECTION YEAR 2018
FACILITY NAME _Shamrock Environmental Corporation SAMPLE PERIOD ® Jan -June ❑ July -Dec
COUNTY Guilford — or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Jim Hollingsworth DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Meritech/Shamrock Lab Cert ## 165/5481 ❑Zero -flaw [_]WaterSupply ❑SA
Comments on sample collection or analysis RECEIVED ®Other_WS-V,_NSW
MAY 21 2018 PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Did this facility perform Vehicle Maintenance Activities using more than 55 gaHons�of new motor oil per month? _ yes X no
(if yes, report your analytical results in the table immediately below) DWR SECTION
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
SW-001
03/06/2018
<5 mg/L
19 mg/L
62
E 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
Pagel of 2

STORM EVENT CHARACTERISTICS
Date 03/06/2018 (first event sampled)
Total Event Precipitation (inches) _O 71
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 1, 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 OUTFALL7 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 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 Mad 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 fpr submitting false information, including the possibility of fines and imprisonment for knowing violations "
(Signature
_5/17/2018
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr or>/web/wq/ws/su/npdessw#tab-4
S W U-250
last revised April 1 1 2013
Page 2 of 2

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Foi guidance on filling out this form, please visit htt ortal ncdenr or web Ir n des-Stormwater
Permit No N/C/ G / 8 / 0 / 0 / D/ 0/ 0/ or Cei tificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 3/06/2018
Time of Inspection 1828 pm
Total Event Precipitation (inches) 0
Was this a "Representative Storm Event' or "Measureable Storm Event" as defined by the permit?
(See information below)
I O�EWI
Please verify whether Qualitative Monitoring must be performed during a representative storm
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or dui ing a measuieable storm event" However,
some permits do not have this i equn ement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measui es greatei than 0 1 inches of rainfall
and that is pi eceded by at least 72 hours (3 days) in which no storm event measuring greater than
01 inches has occurs ed A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a stoi m event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shoi ter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, I certify that thisleport is accurate and complete to the best of my knowledge
(Signature f�idrmittee`or Designee)
Pagel of 2
SWU 242 List modified 7/31/2013

1 Outfall Description
Outfall No SW001 Structure (pipe, ditch, etc ) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc ) None
4 Clarity Choose the number which best desci ibes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 � 3 4 5
5 Floating Solids Choose the number which best describes the amount of Floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater dischai ge, where 1 is no solids and 5 is extremely muddy
1 �p 3 4 5
7 Is there any foam in the stormwater discharge? Yes 1�
8 is there an oil sheen in the stormwater discharge? Yes
9 Is there evidence of erosion or deposition at the outfall? Yes
10 Other Obvious Indicators of Stormwater Pollution
List and describe
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Pagc. 2 of 2
SWU742 Last mod3fied7/31/2013

5/17/2018 USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENSBORO NC
USGS Home
Contact USGS
Search USGS
National Water Information System: bleb Interface
USGS Water Resources
Click to hideNews Bulletins
• Please see news on new formats
• Full News Ri
Data Category Geographic Area
Surface Water If I United States GO
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time-senes Daily data • GO
Click to hidestation-specific text
This station is operated in cooperation with the City of Greensboro, North
L %- Vj Carolina
GREENSBDRO
Boating safety tips
This station managed by the South Atlantic WSC Raleigh Field Office
Available Parameters Period of Record
❑ All 3 Available Parameters for this site
0 00045 Precipitation(Sum) 1998-08-01 2018-05-16
❑ 00060 Discharge(Max ,Min ,Mean) 1928-09-01 2018-05-16
❑ 00065 Gage height(Max ,Min ,Mean) 1998-07-21 2018-05-16
Output format
O Graph
O Graph w/ stats
O Graph w/ meas
O Graph w/ (up to 3) parms
@Table
O Tab -separated
Days (3) Summary of all available data for this site
Instantaneous -data availability statement
-- or --
Begin date
F
https Ilwaterdata usgs govinwisldv?cb_00045=on&formal=html&s+te_no=02095000&referred_module=sw&period=&begin_date=2018-03-03&end dale=2018 03 {

5/17/2018 USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENSBORO NC
41)iii 11*3111c]
End date
2018-03-06
Daily Sum
Precipitation,
total. inches
DATE
Mar
2018
03 0 OOA
04 00
05 0 OOA
Ofi 0 71A
COUNT �4
MAX
0.71
MIN
0.00
r-Mianarion
:ElApproved for publication -- Processing and review completed
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department of the Interior I U S Geological Survey SA.ggv'
,
Title USGS Surface -Water Daily Data for the Nation
URL https //waterdata usgs goy/nwis/dv7
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2018-05-17 18 33 46 EDT
0 93 0 86 cawwOl
https //waterdata usgs govinwisldv?cb_00045=on&format=html&site_no=02095000&referred_module=sw&period=&begin date=2018 03 03&end date=2018 03 {

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No 165
Contact Jim Hollingsworth Repoi t Date 3/16/2018
Client Shamrock Environmental Corp
6106 Corporate Park Drive PO # 05-TKC-18-5999
Brown Summit, NC 27455 Date Sample Rcvd 3/8/2018
Meritech Work Order # 03081805 Sample S18067 Grab 3/6/18
Parameters esult Analysis Date Reporting Limi Method
Total Suspended Solids 19 mg/L 3/12/18 2 5 mg/L SM 2540 D
Oil & Gt ease (HEM) <5 mg/L 3/12/18 5 mg/L EPA 1664E
I hereby certify that 1 have reviewed and approve these data 6. a
Laboratory Representative
642 Tainco Road, Reidsville, North Carolina 27320
tel [phone] fax [phone]

4B:C26
Chain of Custody Record (COQ
NPDES#
Client �6T�e �''`'"1~fL� _ Phone 33b
Address ._15' �� Fax
1V G 2-�_ Email
Project
P 0 #
Attention ��f/1 } ?
d
How would you lik your report sent?
Circle all that apply 0mailreferred) , fax, Mail
37�-j!! Sc5
ortrwr) 1LO)V `1
1( C— a S Pict
Turn Around Time*
"RUSH work needs pear approval
Std(10 d ) 3-5 Days z
f1/1 E�ITE�H ��.
1
ENVIRONMENTAL LABORATORIES"-Cl��S�u��
$+ 642 Tamco Rd Phone [phone]
Reidsville NC 27320 Fax [phone]
` Email info@meritechlabs corn
www mentech I a bs co m
Sample Location and/or ID #
Sampling Dates & Times
Person Taking Sample (Sign/Print)
Lab Use Only
start
End
Comp?
Grab?
#af
Cont
Test(s)
Required
On Ire? e
/ No
pH 00
Cl 00
Date
Time
Date
Time
l 5
Temperature Upon Receipt
�CL
Method of
Shipment
Dechlorination (<0 5 ppm) of Ammonia Cyanide
Phenol and TKN same s must be done
in the field pnor to preservation
Comments �,}�
L t
/ 5�
�(v %
Compositor#
Jug #
UPS
Fed Ex
Are these results for regulatory purposes? Yes No
Report r tS In mg/L
mg/kg ug/L
Hand Delivery
Relinquish d by at
/�
Time
Received by
ate T e
'] `t� i-3 0
Other
Relinquish y p e
Time
Re we
to / Time
Reli ui h by atP v Time ) ;�l U

A
SRAMROCK
ENVIRONMENTAL CORPORATION
A
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected March 6, 2018 1828 lirs
Sample ID SW-001
Sample Analyzed March 6, 2018 1835 hrs
Sample ID SW-001
Results 6 2 pH Units
Results Certified By
Jim Hollinttsworth
Date May 17, 201$" "'___

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted October 30, 2017
CERTIFICATE OF COVERAGE NO NCGO8 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock Lab Cert # 165/5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2017
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' _ _ (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
[_]zero -flow [_]Watersupply [_]SA
®Other WS-V, NSW
RECEI ED PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of newt not3r.%ff oc�r month? _ yes X no
(if yes, report vour analvtical results in the table immediately below)
CENTRAL FILES
DWR SECTION
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
SW-001
09/06/2017
<5 mg/L
24 mg/L
60
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 reN 3sed April 11 2013
Page 1 of 2

STORM EVENT CHARACTERISTICS
Date _09/06/2017 (first event sampled)
Total Event Precipitation (inches) _1 14
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 onginal and one copy of this DMR, 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 "
10/30/2017
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/ws/su/npdessw#tab-4
SWU-250 last revised April 11, 2013
Page 2 of 2

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form, please visit httI2//portal ncdenr org/web/Ir/Ir/npde$ Stormwater/
Permit No N/C/ G / 8 / 0 / 0 / 0/ 0/ 0/ or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford
Inspector Jim Hollingsworth_
Date of Inspection 9/6/2017
Time of Inspection 1330 pm_
Total Event Precipitation (inches) 114
Phone No 336 375 1989
Was this a 'Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or "measureable storm event (requirements vary, depending on the permit)
Qualitative monitoring t equirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" of during a "measureable storm event" Howevei,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 0 1 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, I certify that this report is accurate and complete to the best of my knowledge
(Si�natpre of Permittee or Designee)
Pagel of 2
SWU 242 Gast modified 7/31/2013

1 Outfall Description
Outfall No SWO01 Structure (pipe, ditch, etc ) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
61 2 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
61;
2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
2 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes /1 0�
8 Is there an oil sheen in the stormwater discharge? Yes
9 is there evidence of erosion or deposition at the outfall? Yes
10 Other Obvious Indicators of Stormwater Pollution
List and describe T--� N-P—, J-14 5eWL-t�C:O--
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
5WU 242 List modified 7/31/2013

\1
qTo USGS Home
Contact USGS
sciencefor a changing world Search USGS
National Water Information System- Web Interface
USGS Water Resources Data Category Geographic Area
Surface Water United States GO
Click to hideNews Bulletins
• Please see news on new formats
• Full News 02
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data - GO
Click to hidestation-specific text
This station is operated in cooperation with the City of Greensboro,
North Carolina
GREE11S00A0
Boating safety tips
This station managed by the South Atlantic WSC Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
0 00045 Precipitation (Sum)
❑ 00060 Discharge(Max ,Min ,Mean)
❑ 00065 Gage height(Max ,Min ,Mean)
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
OGraph w/ (up to 3) parms
@)Table
OTab-separated
Period of Record
1998-08-01 2017-10-29
1928-09-01 2017-10-29
1998-07-21 2017-10-29

Days (3
-- or --
Begin date
2017-09-03
End date
Explanation
Provisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe For system changes
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
URL https //waterdata usgs gov/nwis/dv7
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2017-10-30 18 06 22 EDT
1 08 0 96 cawwOl
GO
'USA,gWNV

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No 165
Contact Jim Hollingsworth Report Date 9/15/2017
Client Shamrock Environmental Corp
519 Patton Ave PO # 05-TKC-17-5999
Greensboro, NC 27415 Date Sample Rcvd 9/8/2017
Meritech Work Order # 09081710 Sample Patton Ave 517166 Grab 9/6/17
Parameters, Result Analysis Date Reporting Linji Method
Total Suspended Solids
24 mg/L
9/11 /17
2 5 mg/L SM 2540 D
Oil & Grease (HEM)
<5 mg/L
9/14/17
5 mg/L EPA 1664B
I hereby certify that I have reviewed and approve these data a. 44�
Laboratory Representative
1
642 Tamco Road, Reidsville, forth Carolina 27320
tel [phone] fax [phone]

s�a�s Chain of Custody Record (COC)
NPDE5# i
Client �'Gt ✓ Phone 336-37s L
Address nn Pry, - Fax y
n Email, I is ��r0
"° Vi r�
Project }Gn
ii P 0 # k 7
Attention .i �tc ,,1� Turn Around Time*
*RUSH work needs prior approval
ur report sent
How would youV(r
CirclealEthata 1 5td lod ) Ss zpp y referred) , Fax, Mail
Iil/I E R ITEC H INC.
r 1
ENVIRONMENTAL LABORATORIES
642Tamco Rd Phone [phone]
ti Reidsville NC 27320 Fax [phone]
Email info@meritechlabs com
wWw mentechlabs coin
Sample Location and/or ID #
Sampling Dates & Times
Person Taking Sample (Sign/Pnnt)
Lab Use Only
Start
End
Comp?
Grab?
# of
Cant
Test(s) Required
On Ice? Yes
/ No
pH OK7
Cl OK?
Date
Time
Date
Time
Temperature upon Receipt
Method of
Shlprr>ent
""" Dechlonnation <O 5 pm) of Ammonia, Cyanide Phenol and TKN samples must be done in the field prforto preservation
Comments r L�� �, /1 G ��-
r7 j�
Compositor#
Jug #
UPS
Fed Ex
n Arg th se results for regulatory purposes' Yes No
—
pD esults in mg/L mg/kg � ug/L
Hand Delivery
Reh q s by a r Tin
Received by D ! Timt S-v
Other
Re! D to Ti
R ei by 6a 7 Time
4
Ref w by ate Time , n i
(JV
Re rved by Lab e� Time
)
/ y/!

A
SHAMROCK
ENVIRONMENTAL CORPORATION
A
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected September 6, 2017 1330 hrs
Sample ID SW-001
Sample Analwed September 6, 2017 1335 hrs
Sample ID SW-001
Results 6 02 pH Units
Results Certified By - Q C
im IftnipwAorth
Date September 6, 2017

­v�
RHAMROCK
RONMENTAL CORPORATION
May 2, 2017
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCGO80000
C41 NCGO80791
1 o Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989 • 800-881-1098 • Fax [phone]
www shamrockenviro com • info@shamrockenvlro com
Please find enclosed documents Phis data consists of fist semi-annual sampling the results of
the sampling event demonstrate a slight exceedance of TSS standards Corrective actions and re -
inspection indicated slightly elevated TSS was transient and not likely related to site activities
Resampling was conducted on 4-3-2017 and resamplmg results were found to be In conformance
with permit limits for all parameters
For any questions related to this matter, please contact me at 800 881 1098
Sincerely,
Jim)1lmgswor0tClH, C , CHMM, REMDirof Health, Safety & Environmental
Enclosure
Cc David Johnson
Chris Freeman
Steve Davis
Greg Kiser
RECEIVED
MAY 0 5 2017
CENTRAL FILES
DWR SECTION
I ile SWDMRCover R Page I of I

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted May 2, 2017
CERTIFICATE OF COVERAGE NO NCG08 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock Lab Cert # 165 5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2017
SAMPLE PERIOD ® Jan -June ❑ July -Dec
or ❑ Monthly)_ (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow [—]Water Supply ❑SA
®Other WS-V, NSW
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 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 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
SW-001
03/01/2017
<5 mg/L
124 mg/L
68
1 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 03/01/2017 (first event sampled)
Total Event Precipitation (inches) _0 71
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 DMR including all "No Discharge" reports, within 30 days of receipt ot the lab results Lor at end of monitoring eriod 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 "
05/02/2017
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr orR/web/wq/ws/su/npdessw#tab-4
SWU-250 last revised April 11, 2013
Page 2 of 2

A�
AQ=���
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out th►s form, please visit http //portal ncdenr org/web/lrjnpdes stormwater/
Permit No [J/C/ G / 8 / 0 / 0 / 0/ 0/ 0/ or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 3/1/2017
Time of Inspection 1820 pm
Total Event Precipitation (inches) 0 71
Was this a "Representative Storm Event' or "Measureable Storm Event" as defined by the permit?
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event` or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 01 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, 1 certify th t th report is accurate and complete to the best of my knowledge
(Signature of er itteeW Designee)
Pagel of 2
SWU 242 Last modified 7/31/2013

1 Outfall Description
Outfall No SWO01 _ Structure (pipe, ditch, etc) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc ) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e, smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 U0 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
1 (:�p 3 4 5
7 Is there any foam in the stormwater discharge? Yes
a Is there an oil sheen in the stormwater discharge? Yes L-t2l
9 Is there evidence of erosion or deposition at the outfall? Yes CO,---,
10 Other Obvious Indicators of Stormwater Pollution //_
List and describe � 14 } t -Ilk U V. r \ Vk-
a +'Ri rL %, 2 G
► 2 v -e- ►✓i "*' '40-e-
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 Last modified 7/31/2013

Response to 3-1-2017 Stormwater Sampling Event
NCG080000
NCG08 0791
Tier 1 Response
1 Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results No adverse conditions noted Discussed potential Stormwater impacts with site
personnel No new or changed conditions identified Discussed possible lab errors with lab Calculations
reportedly checked No lab error verifiable
2 Identify and evaluate possible causes of the benchmark value exceedance Discussed potential
Stormwater impacts with site personnel No new or changed conditions identified Gray grit is TSS
suspect Source would appear to be broken down asphalt or grout form recent bank stabilization by City
of Greensboro
3 Identify potential and select the specific source controls, operational controls, or physical
improvements to reduce concentrations of the parameters of concern, and/or to bring concentrations
within the benchmark range Reviewed permit conditions with site supervisors Changed non-BMP
booms in upstream drain pathways
4 Implement the selected actions within two months of the inspection Resampling planned on
future representative storm event Conditions under additional evaluation
5 Record each instance of a Tier One response in the SWPPP Include the date and value of the
benchmark exceedence, the inspection date, the personnel conducting the inspection, the selected
actions, and the date the selected actions were implemented Data recorded to SWPPP by way of
inclusion of copy of this report
Resampling on April 3, 2017 indicate all parameters in control and permit ranges

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No 165
Contact Jim Hollingsworth
Client Shamrock Environmental Corp
6106 Corporate Pai k Drive
Brown Summit, NC 27455
Report Date 3/10/2017
Date Sample Rcvd 3/3/2017
Meritech Work Order # 03031705 Sample 517059 Grab 3/1/17
Parameters Result Analy-as Date Rem 1�. im t Method
Total Suspended Solids 124 mg/L 3/6/17 2 5 mg/L SM 2540 D
Oil & Grease (HEM) <5 mg/L 3/7/17 5 mg/L EPA 1664B
I hereby certify that! have reviewed and approve these data G, &�7
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel [phone] fax [phone]

Chain of Custody Record (COC)
_ NPDES#
Client �Phone �34;,_2
b I `
Addre s Fax ^
l:c--,� �.f�,�-�?'"d�Email
�-7 ��"Project
P 0 # �- D1 — 7— S
Attention _ ',� „� Turn AroundsprorTime*
How would you like our report sent "RUSH work needs prior approval
Circle all that apply E ail;pr rred}, Fax, Nlad std zD s) !z va za
F VERITECHy INC.
tENVIRONMENTAL LABORATORIES
642TamcoRd Phone [phone]
Reidsville NC 27320 Fax [phone]
Email Info@meritechlabs cam
wwW merltechlabs com
Sample Location and/or ID #
Sampling Dates & Times
Person Taking Sample (Sign/Print)
Lab Use Only
Start
End
Comp?
Grab?
# of
Cont
Test(s)
Required
On Ice? Yes
/No
pH OK2
CIOK7
Date
Time
Date
-rime
s
.y
Temperature Upon Receipt
�GC_
Method Of
ShipmentPs
"' Dechlorinauon <0 5 ppm) of Ammonia, Cyanide P eno nd TKN samples must be done in the field prior to preservation
Comments r n
Compositor #
pug #
UPS
r�
Fed Ex
Ar hese re lts f r regulatory purposes?,Yes No
n,
Report results In mg/L i ,Jl mg/kg vg/L
Hand Delivery
Relinquished by- Dat Time / `
- / �j
Rece Date q Z rime � u 3 L,
I
Other
Rehnq�nshed / f Rat Time I � l
t
ate U
t Time Qj
Rell hed by / Time
ec y Da rrr¢

Al
StUMOCK
AENVIRONMENTAL CORPORATION
Test Method
Laboratory Certification
Sample Collected
Sample Ill
Sample Analyzed
Sample ID
Results
Results Certified By
Date
pH by Meter
EPA Method 150 1
5481
March 1, 2017 18 20 pm
SW-001
March 1, 2017 18 30 pm
S W-001
6 8 pH Units
Jim Hollingsworth
March 2 2017

SGS'' i
screlnce log 2 chrn ling world
E
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
USGS Home
Contact USGS
Search USGS
Data Category Geo ra hic Area
Surface Water I United States GO
Please see news on new formats
Full News
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data G�
Click to hidestation-specific text
This station is operated in cooperation with the City of Greensboro,
North Carolina
{iIiEENSBDRO
Boating safety tips
This station managed by the South Atlantic WSC Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
0 00045 Precipitation(Sum)
❑ 00060 Discharge(Max ,Min ,Mean)
❑ 00065 Gage height(Max ,Min ,Mean)
Output format
OGraph
OGraph w/ stats
O Graph w/ meas
0 Graph w/ (up to 3) parms
Period of Record
1998-08-01 2017-05-01
1928-09-01 2017-05-01
1998-07-21 2017-05-01

*Table
OTab-separated
Days (3) Summar
Instantar
-- or --
Begin date
2017-02-26
End date
2017-03-01
Daily Sum
Precipitation, total,
inches
Feb
Mar
DATE
2017
2017
Explanation
LProvisional data subject to revision
uestlons about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe for system chanaes
News
i!i
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department „of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
URL https //waterdata usgs gov/nwis/dv7
Page Contact Information North Carolina Water Data Support Team
M
'USA,92.

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCGO80000
Date submitted January 24, 2017
CERTIFICATE OF COVERAGE NO NCG08 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock Lab Cert # 165/5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2016
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply [:]SA
®Other WS-V, NSW
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?
(if yes, report your analytical results in the table immediately below)
Part A Vehicle Maintenance Areas Monitoring Requirements (If applicable)
yes X no
❑ 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)
Outfal 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
SW-001
11/30/2016
<5 mg/L
22 mg/L
68
t For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here
5WU-250 last revised Apnl 11, 2013
Pagel of 2

STORM EVENT CHARACTERISTICS
Date _11 30 2016 (first event sampled)
Total Event Precipitation (inches) _0 26
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (Inches) NA
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 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 Il 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 (or at end of monitoring period in
the caste "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 "
(Signature of Perm
_1/24/2017
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/ws/su/npdessw#tab-4
SWU-250
last revised Apn1 11, 2013
Page 2 of 2

-",F, �'..
AMROCK
ENVIRONMENTAL CORPORATION
August 19, 2016
Division of Water Quality
Attn. DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCGO80000
C01 NCGO80791
1 o Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989 • 800-881-1098 • Fax [phone]
www, shamrockenviro com • info@shamrockenviro corn
RECEIVED
AUG 2 2 �ulb
CENTRAL FILES
DWR SECTION
Please find enclosed documents This data consists of repeat of the first semi-annual sampling
I he results of the sampling event demonstrate conformance with permit limits for all parameters
including HEM Tier 1 response was initiated despite intuition of lab error contribution and
results of resamplmg essentially corroborate the suspected erroneous data in previous sampling
For any questions related to this matter please contact me at 800 881 1098
Sincerely,
Jim lmgswort CIH, C CHMM, REM
Dir or of Health Safety & Environmental
Enclosure
Cc Todd I oftiS
Chris Freeman
Steve Davis
Greg Kiser
E de SWDMRCovLr R Page 1 of 1

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forgurdance on filling out this form, please visit http //portal ncdenr org/web/Ir/nodes stormwater/
Permit No N/C/ G / 8 / 0 / / 0/ 0/ 0/ or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 06/23/2016
Time of Inspection 23 35 pm
Total Event Precipitation (inches) 0 55
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a `representative storm
event" or "measureable storm event" (requirements vary, depending on the permit)
- - - - - -- ---- - - ----- - - -------- - --- ----
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 01 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, 1 certify that this repArt is accurate and complete to the best of my knowledge
(Signature of Pern-Vftko Designee)
Page 1 of 2
SWU 242 Last modified 7/31/2013

I Outfall Description
Outfall No SWO01 _ Structure (pipe, ditch, etc ) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
10 2 3 4 5
5 FloatingSolids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
91
2 3 4 5
7 Is there any foam in the stormwater discharge? Yes
8 Is there an oil sheen in the stormwater discharge? Yes !�0
19 Is there evidence of erosion or deposition at the outfall? Yes
10 Other Obvious Indicators of Stormwater Pollution
List and describe
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 Last modified 7/31/2013

Semi-annual Stormwater Discharge MonitoringReport
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted August 19, 2016
CERTIFICATE OF COVERAGE NO N0008 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY_ Meritech/Shamrock Lab Cert # 165/5481
Comments on sample collection or analysis HEM exceeds benchmark
significantly but sample observation no oil indicates possible
sampling/analysis error Tier 1 response and re -sampling planned
SAMPLE COLLECTION YEAR 2016
SAMPLE PERIOD ® Jan -June ❑ July -Dec
or ❑ Monthly' month
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply [:]SA
®Other WS-V, NSW
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 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 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
-
PartB 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
SW-001
6/23/2016
<5 mg/L
17 mg/L
63
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 1 1, 2013
Page I of 2

STORM EVENT CHARACTERISTICS
Date _6 23 2016 (first event sampled)
Total Event Precipitation (inches) 073
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this DMR including all "No Discharge" reports, within 30 doys 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
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 ipformation, including the possibility of fines and imprisonment for knowing violations"
(Signature of Perm
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/ws/su/npdessw#tab-4
SWU-250
last revised April 1 1 2013
Page 2 of 2

ENVIRONMENTAL CORPORATION
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected June 23 2016 23 35 pm
Sample ID SW-001
Sample Analyzed June 23, 2016 23 40 pm
Sample ID SW-001
Results 6 3 pH Units
Results Certified By
him Hollin s-,,vorth
Date June 24, 2016

Meritech, Inc.
Environmental Laboratory
+, Laboratory Certification No 165
Contact Chi is Fi eetnan
Client Shamrock Envii onmental Corp
6106 Coi pot ate Pai k Di ive
Bt own Summit, NC 27455
Meritech Work Oi dei # 06271610
Pat ameters
Total Suspended Solids
Oil & Gi ease [HEM]
Result
Sample 516227 Grab
Analysts Date
17 mg/L 6/27/16
<5 mg/L 6/30/16
I her eby certify that I have reviewed and appr ove these data
Repoi t Date 7/5/2016
Pi olect Patton Ave
P 0 # 05-TKC-16-5999
Date Sample Rcvd 6/27/2016
6/23/16
Rcpoi ting Ltnut Method
2 5 mg/L SM 2540 D
5 mg/L EPA 1664A
Labor atory Repr esentative
642 Tamco Road, Reidsville, North Carolina 27320
tel [phone] fax [phone]

32o2un Chain of Custody Record (COC)
j i NPDES#
Client r i1. k GCj- �ti�..�,�,.�,f • [ Phorre
Address °rl -. {,! Fax --
sr'7,�L``s�4 -�'''� �, Email G�27'rt✓19226ne C[,L-'A,lu,C. c
-y?7 Z c" Project _[` man tJ �
P 0 # > - t1g, _- / b
Attention` G�-t`� Turn Around Time•
How would you like your report sent? `RUSH work needs prior approval
- �- Std o s, 3 s 2os
Circle all that apply f it {pre rred) , Fax, Mail
`
URVAUERITECH �i y ��m
w" ENVIRONMENTAL LABORATORIES
642TamcoRd Phone [phone]
Reidsville NC 27320 Fax [phone]
Email info@mentech-labscom
www.meritech-labs.com
Sample Location and/or ID #
Sampling Dates & Times
Person Taking Sample (5tgn/Print) r
- -r. �,�
Lab Use Only
Start
End
Comp ,
Grabs
#of
Cont
Test(s) Required
7
Yes / No
es/
?
pK
ClI OK?
Date
Time
Date
Time
+/
S -U-7
Temperature Upon
Receipt--
) 5
Method of
Shipment
Dechlormation
(<O 5 ppm) of Ammonia Cyanide Phenol and TKN samples must be done in the field priorto preservation "'
Comments 4�J
r} �
Compositor #
lug #
0 UPS
El Fed Ex
Are t e results for regulatory purposes Yes 0 No CD
Report resqks in mg/L mg/kg Q ug/L
EDReti
Hand Delivery
Ti
Received by Dale 7img ,
'+l�tl �� `t
❑° Other
RQ�iquishe �� l Ti
Received by Da`e Time
Retinquishe y Date Time
j Dot

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 1 of 2
-Ri USGS Home
Contact USGS
Search USGS
National Water Information System Web Interface
P•tr Lete o Geo re hw Area
Surface Water United StatesY[GO
Click to hideNews Bulletins
• August 11, 2016 Due to the recent upgrade on Water Data for the Nation, there are problems on
some station graphs that we are actively Investigating
Please see news on new formats
• Full News 0
USGS 02095000 SOUTH BUFFALO CR NEAR GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site ITimesenes Daily data GO
Click to hidestation-specific text
r!9
J This station is operated in cooperation with the City of Greensboro, North Carolina
OAEEKSBORC
Boating safety tips
This station managed by the Raleigh Field Office
Available Parameters Period of Record
❑ All 3 Available Parameters for this site
ED 00045 Precipitation(Sum) 1998-08 01 2016 08 18
00060 Discharge(Max ,Min ,Mean) 1928-09-01 2016 08 18
® 00065 Gage height(Max ,Min ,Mean) 1998-07 21 2016-08 18
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
OGraph w/ (up to 3) parms
@)Table
OTab-separated
Days 3 SummaLry of all available data for this site
Instantaneous -data availability statement
=•r=
Begin date
2016 06 20
End date
2016 D6 23
GO
http Hwaterdata usgs gov/nwis/dv?cb_00045=on&cb_00060=on&cb_00065=on&format=h 8/19/2016

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 2 of 2
Precip-
Dis-
Dis-
Dis-
itation
Gage
Gage
Gage
charge,
charge,
charge,
total,
height,
height,
iheight,
Date
ft3/s,
ft3/s,
ft3/s,
inches,
feet,
feet,
feet,
(M0XImUM)
(Minimum)
(Mean)
(Sum)
(Maximum)
(Minimum)
(Mean)
06/20/2016
06/21/2D16
5 3P
5 8'
4 6P
4 4'
4 9P
4 9P
D DOP
0 QOP
2 52'
2 54P
2 49'
2 48P
2 50P
2 50P
06/22/201b
5 3P
4 4P
4 8P
0 OOP
2 52P
2 48P
2 50P
06/23/2015
15P
3 6P
4 7P
0 73P
2 80'
2 44'
2 49P
Explanation
Provisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Hell)
Data Tips
Explanation of terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department or the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
URL http //waterdata usgs gov/nwis/dv7
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2016 08-19 17 21 59 EDT
033 0 28 vawwOl
http //waterdata usgs gov/nwls/dv?eb_00045=on&cb-00060=on&cb_00065=on&format=h 8/19/2016

M
RONMENTAE CORPORATION
SHAMROCK
June 30, 2016
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE NCG080000
COI NCGO80791
To Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989 • 800-881-1098 • Fax [phone]
www shamrockenvlro corn • info@shamrockenviro com
RECOlVt`_-t0
JUL 0 5 2016
CENTRAL. FILES
DWR SECTION
Please find enclosed documents This data consists of first semi-annual sampling The results of
the sampling event demonstrate a Tier I exceedance conformance with permit limits for HEM
Tier 1 response has been initiated despite intuition of lab error contribution Re -sampling
planned
For any questions related to this matter, please contact me at 800 881 1098
Sincerely,
v[ '
Jim lingswort CIH, C&CHMM,, REM
Dir or of Health, Safety & Environmental
Enclosure
Cc Todd Loftis
Chris Freeman
Steve Davis
Greg Kiser
File SWDMRCmer R Page l of I

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted 09/24/2015
CERTIFICATE OF COVERAGE NO NCG08 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock Lab Cert # 165/5481
Comments on sample collection or analysis HEM exceeds benchmark
significantly but sample observation (no oil) indicates possible
sampling/analysis error Tier 1 response and re -sampling planned
SAMPLE COLLECTION YEAR 2016
SAMPLE PERIOD ® Jan -June ❑ July -Dec
or ❑ Monthly' (month)
QISC ARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
VED ❑Zero -flow ❑Water Supply ❑SA
11L 0 5 1915 ®other WS-VNSW
DwR SE�-rION PLEASE REMEMBER TO SIGN ON THE REVERSE 3
ON
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 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 (5GT-HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0— 9 0
15
-
PartB Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable)
Outfal 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
SW-001
5/17/2016
70 mg/L
<2 5 mg/L
64
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 _5 17 2016 (first event sampled)
Total Event Precipitation (inches) 055
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 OUTFALL7 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 Dischar_ ece"" reports, within 30 days of receipt of the lab results for at end of monitoring period 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
there are significant penalties for submitting false information including the possibility of fines and imprisonment for knowing violations "
CZ3 0 AL/'�
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr org/web/wq/ws/su/npdessw#tab-4
SWU-250 last revved April 11, 2013
Page 2 of 2

RECEIVED
JUL 0 5 2016
Response to 5-17-2016 Stormwater Sampling Event CENTRAL FILES
Nccos000a oWR SECTION
NCGO8 0791
Tier 1 Response
1 Conduct a Stormwater management inspection of the facility within two weeks of receiving
sampling results No adverse conditions noted Discussed potential Stormwater impacts with site
personnel No new or changed conditions identified Discussed possible lab errors with lab Calculations
reportedly checked No lab error verifiable
2 Identify and evaluate possible causes of the benchmark value exceedance Discussed potential
Stormwater impacts with site personnel No new or changed conditions identified
3 Identify potential and select the specific source controls, operational controls, or physical
improvements to reduce concentrations of the parameters of concern, and/or to bring concentrations
within the benchmark range Reviewed permit conditions with site supervisors
4 Implement the selected actions within two months of the inspection Resampling planned on
future representative storm event Conditions under additional evaluation
5 Record each instance of a Tier One response in the SWPPP Include the date and value of the
benchmark exceedence, the inspection date, the personnel conducting the inspection, the selected
actions, and the date the selected actions were implemented Data to be recorded to SWPPP

A
ENVISHAMROCK
RONMENTAL CORPORATION
PH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected May 17, 2016 12 10 pm
Sample ID SW-001
Sample Analysed May 17, 2016 12 15 pm
Sample ID SW-001
Results 6 4 pH Units
Results Certified By Q/,�
AM llm sworth
Date May 17, 2016
RECEIVED
JUL 0 5
CENTRAL FILES
OWR SECTION

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted 09/24/2015
CERTIFICATE OF COVERAGE No NCG08 0791 SAMPLE COLLECTION YEAR 2015
FACILITY NAME _Shamrock Environmental Corporation SAMPLE PERIOD ® Jan -June ❑ July -Dec
COUNTY Guilford or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Jim Hollingsworth DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Meritech Shamrock Lab Cert # 165/5481 ❑Zero -flow ❑Water Supply ❑SA
Comments on sample collection or analysis RECEIVED ®Other WS-V, NSW
sp 2 9 N15 PLEASE REMEMBER TO SIGN ON THE REVERSE
C11 ES
Did this facility perform Vehicle Maintenance Activities using more than 55 gINRallons �f 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,thispheriod1
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 U as ge
Annual average gal/mo
Benchmark
-
50 or 100 see permit
Within 6 0 — 9 0
15
-
PartB 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 (SG T-HEM), mg/L
Total Suspended Solids,
mg/L
pH,
Standard units
Permit Limit
-
15
50 or 100 see permit
6 0 — 9 0
SW-001
8/31/2015
<5mg/L
1 2 5 mg/L
62
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 8/31/2015 (first event sampled)
Total Event Precipitation (inches) 034
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (Inches) NA
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 OUTFALL7 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 lab results for at end of monitorina 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 "
,� ('2r, 1 A(r
(Dale)
Additional copies of this form may be downloaded at http //portal ncdenr ori7/web/wq/ws/su/npdessw#tab-4
SWU-250 last revised April 11 2013
Page 2 of 2

�l
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forgu+dance on filling out this form, please visit http// ortal ncdenr ore/web/Ir/nodes-stormwater/
Permit No N/C/ G / 8 / 0 / 0 / 0/ 0/ 0/ or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Todd Loftis/Jim Hollingsworth
Date of Inspection 08/31/2015
Time of Inspection 7 45 am
Total Event Precipitation (inches) 0 34
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below) M
® Yes ❑ No n
Please verify whether Qualitative Monitoring must be performed during a "representative storm
0
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 0 1 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event' is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, I certify that this report is accurate and complete to the best of my knowledge
Page 1 of 2
SWU 242 Last modified 7/31/2013

I Outfall Description
Outfall No SWO01 _ Structure (pipe, ditch, etc ) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc ) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
(-�) 2 3 4 5
5 Floating Solids Choose the number which best describes the amount of Floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
( 2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
2 3 4 5
7 Is there any foam in the stormwater discharge? Yes l�
8 Is there an oil sheen in the stormwater discharge? Yes
9 Is there evidence of erosion or deposition at the outfall? Yes
10 Other Obvious Indicators of stormwater Pollution
List and describe _ 0 0 0 VA-e� Z) v,L��—,j
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU242 Last modified7/31/2013

A
SHAMROCK
ENV{RdNMENTAI CORPORATION
4
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected August 31, 2015 07 45 am
Sample ID SW-001
Sample Analyzed August 31, 2015 07 55 am
Sample ID SW-001
Results 6 2 pH Units
Results Certified By (��4 44�-t��
im ollm srr orth
Date August 31, 2015

Meritech, Inc.
Environmental Laboratory
' Laboratory Certification No 165
Contact Chris Pi eeman
Client Shamrock limvtronmental Cot p
519 Patton Ave
Gi eensboro, NC 27406
Repot t Date 9/8/2015
Date Sample Rcvd 8/31/201S
Mentech Work Oi der # 08311501 Sample SWD01(PA) 515100 Grab
Eariknieters Result Analvsis Date Reporting Lltnit
Total Suspended Solids 12 mg/L 9/1/15 2 5 mg/L
Oil & Gi ease (HEM) <5 mg/L 9/3/15 5 ing/L
8/31/15
Method
SM 2540 D
EPA1664A
I her ebY cerIJ'
that I have r eviewed and appr ove these data 6 - ..Y V_X_ -
ti
Laboratory Rep esentative
642 Tamco Road, Reidsville, Noi th Carolina 27320
tel [phone] fax [phone]

yv Chain of Custody Record (COC)
NPDES#
Client �z �'�,1N'r`^-�"'`-� � Phone
Address W 0 (. c Oar Qrr� k�✓ Fax
V M; 5,).- - k N—cY.� Email
L r 2 Protect
JPO#
Attention % Turn Around Time`
'RUSH work needs prior approval
How would your ourreportsent?
Circle all that apply Email (preferred) , Fax, Mad Std ] a s} 3 S��Days 2=
I!n E R I T E C F INC.
ENVIRONMENTAL LABORATORIES
642 TamcoAd Phone [phone]
Reidsville NC 27320 Fax [phone]
Email info@ merstech-la bs com
www.meritech-labscom
Sample Location and/or ID #
Sampling Dates & Times
Person Taking Sample (Stgn/Print)
Lab Use Only
Start
End
Comp-,
Grab-)
# of
Cont.
Test(s) Required
On ice?
Yes / No
pH OK7
Cl OK7
D to
Time
ate
Time
Sw`rno a
-V�
C
wA Ok
4-
Temperature en
I ee,q4
Method Of
Shipment
Dechlorination (<p 5 ppm) of Am-nonia Cyanide Phenol and TKN samples must be done in the field prof to,preservation "`
Comments -
Compositor#
1jug #
� UPS
t�t
�r Fed Ex
Are t ese ults for regulatory purposes? Yes No Q-
Repo Ults in mg/L mg/kg (aug/L Q
=Hand Delivery
Relm ,s e y
er i
t T
R ve Time
3 f 2:>80
Qt Other
�n e ate Tim
Rec +ved by Date Time
Relinquished by f Date Tune
RoKved lVb /� yifi
�t /
V Timef, C
O F

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page I of 3
USGS Home
Contact USGS
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Category Geographic Area
Surface Water I United States v GO
• July 9, 2015 - The NWIS Mapper is back online
• Try our new Mobile -friendly water data site from your mobile device'
• Full News I®
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
M
This station is operated in cooperation with the City of Greensboro,
North Carolina
G RIEFHSA MAD,
Boating safety tips
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
❑ 00060 Discharge(Mean,Max ,Min )
W 00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
OGraph w/ (up to 3) parms
Period of Record
1928-09-01 2015-09-23
1998-08-01 2015-09-23
1998-07-21 2015-09-23
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02095000&referr 9/24/2015

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS
Page 2 of 3
*Table
OTab-separated
Days (5) Sum
-- or --
Begin date
2015-08-27
End date
2015-09-01
II avai
anstantaneous-Data ava11aointy statement
Daily Sum
Precipitation, total,
inches
Aug
Sep
DATE
Z015
2015
�00
000
�4����
5
19
20 uu
21 ��
22 ��
23 ��
http //waterdata usgs gov/nwis/dv9c6_00045=on&format=html&site_no=02095000&referr 9/24/2015

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS
Page 3 of 3
24 �u
25 ��
26 00
27 O 00 P
ZS OOOP�
29 QQQp�
30 OOOP�
31 034P�
00
COUNT 00
MAX 0.34
MIN 0 OD
Explanation
Provisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
URL http //waterdata usgs gov/nwis/dv7
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2015-09-24 12 31 15 EDT
0 54 0 52 caww02
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02095000&referr 9/24/2015

P015�_
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance onfilling out this form please visit http //portal ncdenr orgjweb jlrjnpdes-stormwaterj
'ermit No N/C/ G / 8 / 0 / 0 / 0/ 0/ 0/ or Certificate of Coverage No
acihty Name Shamrock Environmental Corporation
ounty Guilford Phone No 336 375 ] 989
Inspector Todd Loftis/Jim Hollingsworth _ FrIFNEU
Date of Inspection 06/25/2015
Time of Inspection 9 50 am
CENTRAL FILES
Total Event Precipitation (inches) <01 DWR SECTION
Was this a "Representative Storm Event" or "Measureable Storm Event4as f ned by the permit?
(See information below) V
ElYes ®No
Please verify whether Qualitative Monitoring must be performed during a "representatp Storm
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 01 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permrttee
obtains approval from the local DWQ Regional Office
By this s_!Znature, I certify- this report is accurate and complete to the best of my knowledge
(SigKatVre of Permittee or Designee)
Page 1 of 2
SWU 242 Last modified 7/31/2013

I Outfall Description
Outfall No SWO01 Structure (pipe, ditch, etc ) Pipe/Ditch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc ) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
19 2 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
rf1 2 3 4 5
5 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
(1) 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes /Va
S Is there an oil sheen in the stormwater discharge? Yes e
9 Is there evidence of erosion or deposition at the outfall? Yes P
10 Other Obvious Indicators of Stormwater Pollution
List and describe _ Ia —, GDA 29,—
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
5WU 242 Last modified 7/31/2013

USGS Current Conditions for USGS 02095000 SOUI H BUFFALO CR NEAR GREENS Page 1 of 3
USGS Home
Contact USGS
Ego
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Category Geographic Area
Surface Water uI United States v GO
• July 9, 2015 - The NWIS Mapper is back online
• Try our new Mobile -friendly water data site from your mobile device'
• Full News Z
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
Fp'-VThis station is operated in cooperation with the City of Greensboro,
North Carolina
c;i����isgoao
Boating safety tips
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
❑ 00060 Discharge(Mean,Max ,Min }
R 00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
OGraph w/ (up to 3) parms
Period of Record
1928-09-01 2015-08-23
1998-08-01 2015-08-23
1998-07-21 2015-08-23
http Hwaterdata usgs gov/nwis/dv?cb-00045=on&fon-nat=html&site-no=02095000&referr 8/24/2015

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS
Page 2 of 3
©Table
OTab-separated
Days (5) Sum
lInstantaneous-data availability statement
-- or --
Begin date
2015-06-21
End date
2015-06-26
Daily Sum
Precipitation,
total, inches
DATE � u n
2015
21 O OO p
22 0 00 P
23 0 00 P
24 D 00 P
25 0 05 P
26 0 J
ICOUNT11 6 1
I MAX II 0.67 1
MIN II 0.00 1
Explanation
EfFovisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Hela
Data Tips
Explanation of, terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
U9!�
http //waterdata usgs gov/nwlsldv9cb_00045=on&format=htmt&site_no=02095000&referr 8/24/2015

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 3 of 3
URL http //waterdata usgs gov/nwis/dv7
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2015-08-24 19 55 43 EDT
0 59 0 5 vaww02
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02095000&referr 8/24/2015

ME.I2ITECH, INC.
Environmental Laboratories
Laboratory Cernf cat►on No 165
AW
Contact Chris Freeman
Client Shami ock Envu onmental Corp
519 Patton Ave
Gi eensboi o, NC 27406
Repoi t Date 7/8/2015
Sample Received 6/29/2015
Met itech Woi k Oi der # 06291502 Sample S15088 Grab 6/25/15
Parameter Bgsul AnReporting Limit Method
Total Suspended Solids 12 mg/L 6/29/15 2 5 mg/L SM 2540 D
Oil & Grease (HEM) <5 mg/L 7/6/15 5 ing/L EPA 1664A
I hereby certify that I have reviewed and approve these data
Laboratory Rept esentative
642 Tamco Road Reidsville, NC 27320
P(336) 342-4748 F(336) 342-1522

CHAIN OF CUSTODY FORM
MOM
6106 Corporate Park Dr
Browns Summit, NC 27214
Phone [phone]
Fax [phone]
Attn. Lab Mana er
Sampling Site Location/Info
Analysis
or Evaluation
It
uutd
x
Spec�a]
lasbucnaus
},
{�4141l
f
§317221C Lion
Sample
Matrix
Contarner
Tvpe.
# of
Coraaw=
Samptmg
rJI`irnc
Preservative
1 �-o
f
cc
i
G
k
Ls 150 q
Special Instructions
t�
Zg a G 2�
1=
z5 �5` etc z_-,
Turn=und Trine: (Check)
11 Same nay o 72 Hours
❑ 24 Hours ❑ s nays
r
qQLlS
� /uaC
�(,, {
❑ 48 Hours tandard
emc
Sample -kjrrty upon —capt:
❑ Intact ❑ On Ice
* Note For wastewaters, if MDL exceeds the effluent limit, lab shall provide proof of efforts to resolve effluent sample detection limits reported higher than permit limits [due to matrix
interference] shall consist of the information included in "Chapter 1 - Checklist of Laboratory Data Required to Support a Claim that the Permittee was Unable to Measure Pollutants Due to
Matrix Problems" of EPA Guidance on Analytical Problems Assocuated with Compliance Monitoring [Publication 821-B-93-001 June 1993]

SHAMROCK
ENVIRONMENTAL CORPORATION
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected June 25, 2015 09 50am
Sample ID 5W-001
Sample Analyzed June 25, 2015 10 00am
Sample ID SW-001
Results 7 3 pH Units
Results Certified By
im Hollins north
Date _ June 25, 2015

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form, please visit httpj/portal ncdenr.org/web/lr/npdes-stormwaterl
Permit No N/C/ G / 8 / 0 / 0 / 0/ 0/ 0/ or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Todd Loftis
Date of Inspection 06/27/2015
Time of Inspection 4 52 pm
Total Event Precipitation (inches) 122
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below )
❑ Yes ® No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event' However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 0 1 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
01 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, l,cerpfy that this report is accurate and complete to the best of my knowledge
(SighatGre of Permittee or Designee)
Pagel of 2
5WU 242 Last modified 7/31/2013

I Outfall Description
Outfall No SW001 Structure (pipe, ditch, etc ) Pipe/Duch
Receiving Stream S Buffalo creek
Describe the industrial activities that occur within the outfall drainage area Light industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc ) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc ) No Odor
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 2 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
/ 11 2 3 4 5 -
7 Is there any foam in the stormwater discharge? Yes SNo
8 Is there an oil sheen in the stormwater discharge? Yes No
9 Is there evidence of erosion or deposition at the outfall? Yes QVo J
10 Other Obvious Indicators of Stormwater Pollution `/
List and describe
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 Last modified 7/31/2013
I

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date submitted 06/17/2014
CERTIFICATE OF COVERAGE NO NCGO8 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock _ Lab Cert # 165/5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2015
SAMPLE PERIOD ® Jan -June ❑ July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow [:]WaterSupply ❑SA
®Other WS-V, NSW
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 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 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
SW-001
6/27/2015
<5mg/L
4 mg/L
63
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 6/27/2015 (first event sampled)
Total Event Precipitation (inches) 122
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 on origrnal and one copy .of this DMR, inc!uding 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 impnsonment for knowing violations "
(Signatu re/6f y'erm ittee)
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr ore/web/wq/ws/su/npdessw#tab-4
SWU-250
last revised April 11, 2013
Page 2 of 2

USGS Current Conditions for USGS 02095000 SOU I H BUFFALO CR NEAR GREENS Page 1 of 3
USGS Home
Contact USGS
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Cate o / Geographic Area
Surface Water ^v1 lUnitedStates mvl GO
• June 16, 2015
• Try our new Mobile -friendly water data site from your mobile device'
• New improved user interface
• Full News f®
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
rA-tjThis station is operated in cooperation with the City of Greensboro,
North Carolina
nRFEHSnORO
Boating safety tips
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
❑ 00060 Discharge(Mean,Max ,Min )
00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
Period of Record
1928-09-01 2015-06-28
1998-08-01 2015-06-28
1998-07-21 2015-06-28
http 1/waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02095000&referr 6/29/2015

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 2 of 3
OGraph w/ (up to 3) parms
OTable
OTab-separated
Days (4) Summary of all available data for this site �o
-- or --
Begin date
2015-06-24
End date
Explanation
Provisional data sub]ect to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation Ur�,g011�
URL http //waterdata usgs gov/nwis/dv7
http Hwaterdata usgs gov/nwis/dv?cb_00045=on&format=html&srte_no=02095000&referr 6/29/2015

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 3 of 3
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2015-06-29 17 21 29 EDT
❑ 54 0 52 sdww02
http //waterdata usgs gov/nwis/dv9cb_00045=on&format=html&site_no=02095000&referr 6/29/2015

MERITECH, INC.
Environmental Laboratories
Laboratory Cerification No 165
s
E-
Contact Chi Is Freeman
Client Shamrock Envn onmental Cot p
519 Patton Ave
Greensboro, NC 27406
Merttech Work Ot der # 07011510 Sample S15089 Grab
Rararaggt C Hesn1C Analysis Date
Total Suspended Solids 4 mg/L 7/2/15
Oil & Grease (ITEM) <5 mg/L 7/6/15
C
Repot t Date 7/9/2015
Project Pelton Ave SW
Sample Received 7/1/2015
6/27/15
Reporting Limit Metlla4
2 5 mg/L SM 2540 D
5 mg/L EPA 1664A
I hereby certify that I have rep# v c � avq , NC =O�- V U
P(336) 342-4748 F(336) 342-1522 Labw story Reps esentative

r(Al
-.aMWCK
ENY,xpNYS NiAl CpVOtATIOH
Shamrock Environmental Corporation
6106 Corporate Park Drive
Browns Summit NC 27214
CHAIN OF CUSTODY
Client Name/Address
5��vaaG ✓, �.,
Protectf PO Number
Cc &Lsw
Analysis
Required
m w
�+
0
Special Instructions
Protect Manager—�k {Y\ S� ��
Sampler 1 r 5
Phone Number 22& g7j jria
Fax Number 3-5& 375 it I
Sample Name
Cate
Time
Grab or
Comp
Matrix
Container
Tyjrpe
No
n tS k I (}
1 Z
{L
l0.^A
rs Is S
Re'inqurshed By Daterl-ime
FM
D e!T
� �same
Turnaround Time (Check)
day 72 hours
24 hours 5 days
48 hours normal
R 5Ke�I)ateiTIme
�1f1� t f {
d y �atJTme
:Z? f 1
Me; i ui By atefirme
R By Datelrime
15 J oo-7
Sample Integrity (Check)
In,act on ice

Al
SHAMROCK
AENVIRONMENTAL CORPORATION
pH by Meter
Test Method EPA Method 150 1
Laboratory Certification 5481
Sample Collected June 27, 2015 4 52pm
Sample ID SW-001
Sample Analysed June 27, 2015 5 OOpm
Sample ID SW-001
Results 6 3 pH Units
Results Certified By )�� vl� .
JA Hollm svvorth
Date vJune 25, 2015

7).h.k
ENVIRONMENTAL CORPORATION
August 24, 2015
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCG080000
COI NCGO80791
To Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989 • 800-881-1098 • Fax [phone]
www shamrockenviro com • info a@shamrockenviro com
Please find enclosed documents This data is related two of several attempts at collecting
samples that meet representative standards of the General Permit during the first half of 2015
The first attempt resulted in generation of a sample but rainfall did not exceed the permit
threshold The second sample was conducted during a significant rain event and yielded
sufficient sample but there was not a ram -free period of 72 hours prior to the sampling event
Otherwise the results of both sampling events demonstrate conformance with permit limits
For any questions related to this matter, please contact me at 800 881 1098
Sincerely,
r
�#
Jim91,
ngswort CIH, C &,CHMM, REM
DirdClor of Health, Safety & Environmental
Enclosure
Cc Tun Smith
Todd Loftis
Chris Freeman
Steve Davis
Greg Kiser
File SWDMRCover R Page 1 of i

ENVIRONMENTAL CORPORATION
December 29, 2014
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCGO80000
COI NCGO80791
To Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989. 800-881-1098 • Fax [phone]
www shamrockenviro com • info@shamrockenviro com
Please find enclosed documents referenced in but inadvertently omitted from the correspondence
dated December 23, 2014 (copy enclosed) This is the data related the two unsuccessful attempts
at collecting samples that meet permit requirement As noted the final sampling event conducted
11/06/2014 and referenced in our original submittals included successful and the compliant
sampling event
For any questions related to this matter, please contact me at 800 881 1098
Sincerely,
Jim lingswoWCCIH, C , CHMM, REM
Dir or of Health, Safety & Environmental
Enclosure
Cc Tim Smith
Todd Loftis
Chris Freeman
Steve Davis
Greg Kiser
File 2014 11 06 SWDYIRCover R Page 1 of 1

A�
j'A
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit http.//mortaIn cdenr org/web/wgjwsIsu/npdessw#tart -4
Permit No N/C/ G / 0 / 8 / 0 / 0/ 0 / 0 / or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 10/10/2014
Time of Inspection 18 30 PM
Total Event Precipitation (inches) 0 21
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or `measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 0 1 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, 1 certify t4at this report is accurate and complete to the best of my knowledge
(SigrAtu/e of Permittei`'ar Designee
Page 1 of 2
SWU 242 Last modified 10/25/2012

I
a
1 Outfall Description
Outfall No 001 Structure (pipe, ditch, etc ) Pipe
Receiving Stream S Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area Light Industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
X 2 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
X 2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
X 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes X No
8 Is there an oil sheen in the stormwater discharge? Yes X No
9 is there evidence of erosion or deposition at the outfall? Yes X No
10 Other Obvious Indicators of Stormwater Pollution
List and describe None observed Note insufficient flow at time of observation to allow for sample
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
SWU 242 LaSL modified 10/25/2012
Page 2 of 2

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220 Page 1 of 3
USGS Home
Contact USGS
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Category Geographic Area
Surface Water v I United States v GO
• Try our new Mobile -friendly water data site from your mobile device'
• Full News 11@
USGS 02094770 SOUTH BUFFALO CREEK AT US
220 AT GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
This station is operated in cooperation with the City of Greensboro,
North Carolina
11AFFUS6OR0
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
© 00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
❑ 00060 Discharge(Mean,Max ,Min }
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
OGraph w/ (up to 3) parms NEW
*Table
OTab-separated
Period of Record
2000-01-01 2014-12-22
1998-07-21 2014-12-22
1998-08-01 2014-12-22
http //waterdata usgs gov/nwis/dv9cb_00045=on&format=html&site_no=02094770&refe 12/23/2014

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220
Page 2 of 3
Days (4
-- or --
Begin date
2014-10-07
End date
2014-10-11
Daily Sum
Precipitation,
total, inches
DATE Oct
2014
07 O OO P
OS O OO P
09 OOOP
10 021�
E:1T]KE
00
COUNT
MAX 0 21
MIN 10 00
Explanation
UEr—ovisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
H__ I p
Data Tips
Explanation of terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
URL http //waterdata usgs gov/nwis/dv?
Policies and Notices
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2014-12-23 15 24 11 EST
0 49 0 48 vaww02
��A:gL-j�•4
TAK C Pmog
...AMERiCA
http 1/waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&refe 12/23/2014

USGS Current Conditions for USGS 02094770 SOU"I H BUFFALO CREEK AT US 220 Page 3 of 3
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&refe 12/23/2014

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form, please visit http //portal ncdenr.org/web/wq/ws/su/nndessw#tab-4
Permit No N/C/ G / 0 / $ / 0 / 0/ 0 / 0 / or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation _
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 8/01/2014
Time of Inspection 09 35 AM
Total Event Precipitation (inches) 0 67
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below )
❑ Yes ® No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or 'measureable storm event" (requirements vary, depending on the permit)
--- ---- ----- - - _ - ---------------- -__--- ------- ---_ ___---------- --------_____ �_____— ______
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event " However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 01 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
01 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DW(
onal Office
By this signature, I certify that;�Os report is accurate and complete to the best of my knowledge
(Signattt6e oVermittee or Vsignee)
Page 1 of 2
SWU 242 Last modified 10/25/2012

I Outfall Description
Outfall No 001 Structure (pipe, ditch, etc ) Pine
Receiving Stream S Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area Light Industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc ) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have Ci e , smells strongly of oil,
weak chlorine odor, etc ) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 X 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
X 2 3 4 5
b Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
X 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes X No
8 is there an oil sheen in the stormwater discharge? Yes X No
9 Is there evidence of erosion or deposition at the outfall? Yes X No
10 Other Obvious Indicators of Stormwater Pollution
List and describe None observed Precipitation on previous day nullified sample results
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 Last modified 10/25/2012

Meritech, Inc.
, Environmental Laboratory
Laboratory Certification No 165
Contact Jay Gainer Report Date 8/7/2014
Client Shamrock Environmental Corp
519 Patton Ave
Greensboro NC 27406 Date Sample Rcvd 8/1/2014
Mentech Work Order # 08011430 Sample 514163 Grab 8/1-2/14
paramgters Rgsult Analysis Date RgPQrUng Limit Method
Total Suspended Solids
12 mg/L
8/5/14
2 5 mg/L SM 2540 D
Oil & Grease (HEM)
< 5 mg/L
8/7/14
5 mg/L EPA 1664A
I hereby certify that I have reviewed and approve these data 4 - Az�
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel [phone] fax.[phone]

08/01/14
Shamrock Environmental Corporation
MO Corporate Park Drive
Browns Summit, NC 27214
(336)-375-1989 Fax # [phone]
CHAIN OF CUSTODY
€nvironmenta! Aatdft Samn
Sampled By Oz,
77 #
Sample
Name
®®
' , '
®�!�m�
Preservative
Ind -
---����
Comments
Relinquished By
Reilnqulshed By
Received By
Received By
jrti Pq /ZZl�

SHAMROCK
ENVIRONMENTAL CORPORATION
Test Method
Laboratory Certification
Sample Received
Sample ID
Results
vH by Meter
EPA Method 150 1
5481
08/01/2014 9 35am
SW-001
638
Results Certified By 4� i
Date

U-GS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220 Page 1 of 3
USGS Home
Contact USGS
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Category Geographic Area
Surface water I United States V GO
• Beginning Thursday, August 7, 2014 the USGS will begin deploying a
release of the USGS Water Data for the Nation web site There are many
servers that need to be updated, so the process may take a couple of days
During this time period you may see an inconsistent user Interface, as some
servers are updated while others are not
• Try our new Mobile -friendly water data site from your mobile device'
• Full News 10
USGS 02094770 SOUTH BUFFALO CREEK AT US
220 AT GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
r4o�V6-0
This station is operated in cooperation with the City of Greensboro,
North Carolina
GAFFIMaiFRO
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
W 00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
❑ 00060 Discharge(Mean,Max ,Min )
Output format
OGraph
OGraph w/ stats
Period of Record
2000-01-01 2014-08-05
1998-07-21 2014-08-05
1998-08-01 2014-08-05
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&referre 8/6/2014

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK A F US 220
Page 2 of 3
O Graph w/ meas
OGraph w/ (up to 3) parmS NEW
*Table
OTab-separated
Days (5) Summary of all avail
__ or --
Begin date
2014-07-28
End date
2014-08-02
Daily Sum
Precipitation, total,
inches
]ul
Aug
DATE
2014
2014
r thi
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&referre 8/6/20 ] 4

USGS Current Conditions for USGS 02094770 SOUTI I BUFFALO CREEK AT US 220
Page 3 of 3
Explanation
Provisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe for system changes,
News
Accessibility Plug -Ins FOIA Privacy Policies and Notices
I S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation ����'-
URL http //waterdata usgs gov/nwis/dv7 7AKM PRIOC
`AMERIGA
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2014-08-06 17 47 00 EDT
0 51 0 46 vaww02
http Hwaterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&referre 8/6/2014

6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989 • 800-881-1098 • Fax [phone]
www shamrockenviro com • Info@ s ha mrockenviro cam
December 23, 2014
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCG080000
COI NCGO80791
To Whom it May Concern
Please find enclosed discharge monitoring report You will note data for 2 unsuccessful attempts
at collecting samples that meet permit requirement The first two include one sample that did not
represent a "representative storm event" and a second that did not have sufficient discharge to
facilitate sampling The final sampling event conducted 11/06/2014 included successful and
compliant sampling event
For any questions related to this matter please contact me at 800 881 1098
Sincerely,
Jim lingswoOiCIH, C , CHMM, REM
D,r or of Health, Safety & Environmental
Enclosure
Cc Tim Smith
Todd Loftis
Chris Freeman
Steve Davis
Greg Kiser
File 2014-11-06 SWDMKover Page I of I

Semi-annual_Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted 06 17 2014
CERTIFICATE OF COVERAGE NO NCG08 0791
FACILITY NAME Shamrock Environmental Corporation _
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY Meritech/Shamrock_ _ Lab Cert # 165/5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2014
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly'. (rriontW
DISCHARGING TO CLASS ❑ORW ❑HQW []Trout ❑PNA
❑Zero -flow ❑Water supply ❑SA
®Other WS-V, NSW
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 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 periods
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
-
PartB 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
SW-001
11/06/2014
<5mg/L
8 mg/L
64
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 I of 2

STORM EVENT CHARACTERISTICS
Date 11/06/2014_ (first event sampled)
Total Event Precipitation (Inches) 055
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
Note If you report a sample value in excess of the benchmark, you must implement Tier I, Tier 2, or Tier 3 responses See General Permit text.
FOR PART A AND PART B MONITORING RESULTS
a A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS SEE PERMIT PART li SECTION B
a 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS SEE PERMIT PART 11 SECTION B
a TIER 3 HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE QUTFALL7 YES[:]NOED
IF YES, HAVE YOU CONTACTED THE BWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this AMR, incfudin4'_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
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 sigprFVnt penalties for sMbmltting false information, including the possibility of fines and imprisonment for knowing violations "
(Signatu
. ) a 1-2-31�
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr orgjweb/w4/ws/su/nndessw#tab-4
SWU-250
last revised April 11, 2013
Page 2 of 2

MCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form, please visit t l c en o w w ws su n d u -
Permit No or Certificate of Coverage No
Facility Name Shamrock EnvirojmenLal Corporation
County Gullfgr Phone No 336,375,1989
Inspector Iim Hollingsworth
Date of Inspection 11/06/2014
Time of Inspection 7 14 PM
Total Event Precipitation (inches) 0.55
Was this a "Representative Storm Event" or' Measureable Storm Event" as defined by the permit?
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a 'representative storm
event" or'ineasureable storm event' (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event' or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 01 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
01 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, I certifk that)is report Is accurate and complete to the best of my knowledge
(Signdtuxe'of Per&ittee or
Pagel of 2
5WU 242 Last modified 10/25/2012

j
1 Outfall Description
Outfall No 9-1 Structure (pipe, ditch, etc) Lipe
Receiving Stream 5_Buffala Creek
Describe the industrial activities that occur within the outfall drainage area Fight Industrial
-
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc) and tint
(light, medium, dark) as descriptors Qgar,,,.._
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 X 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
X 2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids to the stormwater discharge, where 1 is no solids and 5 is extremely muddy
X 2 3 4 5
7 Is there any foam to the stormwater discharge? Yes X No
S Is there an oil sheen in the stormwater discharge? Yes X No
9 Is there evidence of erosion or deposition at the outfall? Yes X No
10 Other Obvious Indicators of stormwater Pollution
List and describe Vone-observed
Note Low clarLty, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
maybe indicative of pollutant exposure These conditions warrant further Investigation
Page 2 of 2
SWU 242 Last modified 10/25/2012

3
eritech, Inc.
*:;so
Environmental Laboratory
Laboratory Certification No.165
Contact jay Galnet Repot t Date 11/18/2014
Client ShamtockCnvltoamentalCoip
519 Patton Ave
Greensboro, NC 27406 Date Sample Rcvd 11/7/2014
Meritech Work Order 0 11071435 Sample 514194 Patton Stormwater SW-001 Grab 11/6/14
Parameters Result Analysis Date Renarting Limit Mef110d
Total Suspended Solids
8 mg/L
11/12/14
2 5 mg/L SM 2540 D
Oil & Gt ease (HEM)
< 5 mg/L
11/17/14
5 mg/L EPA 1664A
T herebycei tffl'thatl have reviewed and approve these data k, a
+ Pp
Laboratory Reps esen [at?ve
642 Tamco Road, Reidsville, Not th Carolina 27320
tel [phone] fax [phone]

11/07/14
Shamrock Environmental Corporation
6106 Corporate Park Onve
Browns SummrL NC 27214
(336)-375-1989
CHAIN OF CUSTODY
Environmental Audit Sample
Fax #' (336)-37&1801 Sampled By Jim Hollingsworth
Sample
Name
..�C�t::L•��0�
comments
Relinquished By,
Relinquished By i 1/3i
Received By
Received By
�DLO �
63;,1A 7'�-

SHAMROCK
ENVIRONmENTAi CORPOIAUON
Test Method
Laboratory Certification
Sample Received
Sample [D
Results
nH by Meter
EPA Method 150 1
5481
11/06/2014 7 20pm
SW-001
640
Results Certified Byeol
Date

11/07/14
Shamrock Environmental Corporation
6106 Corporate Park Drive
Browns Summit, NC 27214
(336)-375-1989
CHAIN OF CUSTODY
Environmental Audit Sample
Fax #[phone] Sampled By Jim Hollingsworth
Name
- . • •
�!�L17OreTrMs
Comments
Relinquished By �j Received By » r
Relinquished By i >/kf-- Received By

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220 Page 1 of 3
USGS Home
k #''Contact USGS
Search USGS
er _.F_::
},sclt'r�ceifrir��fchanymg:w rlrf�
WaterNational Information , Interface
USGS Water Resources Data Category ea ra hic Area
Surface water v I United States v GO
Click to hideNews Bulletins
o Try our new Mobile -friendly water data site from your mobile device'
o Full News 10
USGS 02094770 SOUTH BUFFALO CREEK AT US
220 AT GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time-senes Daily data v GO
Click to hidestation-specific text
GThis station Is operated in cooperation with the City of Greensboro,
O North Carolina
aii;UNSE1oRo
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
00045 Precipltation(5um)
❑ 00065 Gage height(Mean,Max ,Min )
❑ 00060 Discharge(Mean,Max ,Min )
Output format
O Graph
O Graph w/ stats
O Graph w/ meas
OGraph w/ (up to 3) parms
@Table
OTab-separated
Period of Record
2000-01-01 2014-12-22
1998-07-21 2014-12-22
1998-08-01 2014-12-22
GO
http //waterdata usgs gov/nwis/dv'?cb-00045=on&format--html&site—no=02094770&refe 12/23/2014

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220
Page 2 of 3
4) Summary of all availabi
-- or --
Begin date
2014-11-03
End date
ous-data av
Explanation
Provisional data subject to revision
Questions about Sites data?
Feedback on this web site
Automated retrievals
HH 11
Data Tins
Exnlanation of terms
Subscribe for system changes
News
Accessibility Plug -ins FOIA Privacy Policies and Notices
U_SDepartment of the Interior 1 U S. Geological „Survey
Title USGS Surface -Water Daily Data for the Nation
URL http•//waterdata usgs gov/nwis/dv7 -rMPRIcc
wqM �RIC!1
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2014-12-23 15 25 07 EST
0 44 0 47 vaww02
http //waterdata usgs gov/nwis/dv9cb-00045=on&format--html&site—no=02094770&refe 12/23/2014

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220 Page 3 of 3
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&refe 12/23/2014

r
ENVIRONMENTAL CORPORATION
SHAMROCK
December 23, 2014
Division of Water Quality
Attn DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re NCGO80000
COI NCGO80791
To Whom it May Concern
6106 Corporate Park Drive Browns Summit, NC 27214
336-375-1989. 800-881-1098 • Fax [phone]
www shamrockenviro cam • info@shamrockenviro com
RECEIVED
DEC 3 0 2014
CENTRAL FILES
DWR SECTION
Please find enclosed discharge monitoring report You will note data for 2 unsuccessful attempts
at collecting samples that meet permit requirement The first two include one sample that did not
represent a "representative storm event" and a second that did not have sufficient discharge to
tacilitate sampling The final sampling event conducted 11/06/2014 included successful and
compliant sampling event
For any questions related to this matter, please contact me at 800 881 1098
Sincerely,
J1m 11ngswort C1H, C&CHMM,REM,
Dir or of Health, Safety & Environmental
Enclosure
Cc Tim Smith
Todd Loftis
Chris Freeman
Steve Davis
Greg Kiser
File 2014-11-06 SWDMRCover
Page l of 1

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCG080000
Date subm:tted 06 17 2014
CERTIFICATE OF COVERAGE NO NCGQ8 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES _ Jim Hollingsworth
LABORATORY Meritech/Shamrock Lab Cert # 165 5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2014
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW [—]Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
®Other WS-V NSW
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 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 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)
O u tfa I 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
SW-001
11/06/2014
<5mg/L
8 mg/L
64
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 11/06/2014 (first event sampled)
Total Event Precipitation (inches) 055
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
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 DMR, 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 ingwry 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 sig^ant penalties for syjbmitting false information, including the possibility of fines and imprisonment for knowing violations "
(SEgnatu
I a I z3IZ,-,)�
(Date)
Additional copies of this form may be downloaded at http //portal ncdenr orR/web/wq/ws/su/npdessw#tab-4
SWU-250
last revised April 11, 2013
Page 2 of 2

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form please visit httpf /portal ncdenr org/web/wq/ws/su/npdessw#tab 4
Permit No N/C/ G / a / 8 / 0 / 0/ 0 / 0 / or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim -Hollingsworth
Date of Inspection 11/0612014
Time of Inspection 7 14 PM
Total Event Precipitation (inches) 0 55
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below )
M Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event" However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 01 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
01 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, I certif� that is report is accurate and complete to the best of my knowledge
ittee or
Pagel of 2
5WU 242 Last modified 10/25/2012

1 Outfall Description
Outfall No 001 Structure (pipe, ditch, etc ) Pipe
Receiving Stream S Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area Light Industrial
2 Color Describe the color of the discharge using basic colors (red,'brown, blue, etc) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (i e , smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 X 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
X 2 3 4 5
G Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
X 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes X No
S Is there an oil sheen in the stormwater discharge? Yes X No
9 Is there evidence of erosion or deposition at the outfa117 Yes X No
10 Other Obvious Indicators of Stormwater Pollution
List and describe None observed
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 Last modified 10/25/2012

Meritech, Inc,,
PAM Environmental Laboratory
- Laboratory Cer tiHcation No 165
Contact jay Ceninei
Client 5hanu ock Lnvn oumental Coil)
519 Patton Ave
Greensboi o, NC 27406
Repoi t Date 11/18/2014
Date Sample Rcvd 11/7/2014
Mei itech Woi k Oi dei It 11071435 Sample 514194 Patton Stoi mwater SW 001 Gi ab
Pararnetet-s Resul Analysis Date Re ov t ting Lltult
f otal Suspended Solids 8 ing/L 11 /12/14 2 5 mg/L
Oil & Gi ease (HEM) < 5 ing/L 11/17/14 5 mg/L
I het eby cet tidy that I have i eviewed and approve these data
11/6/14
Method
SM 2540 D
EPA1664A
kr 104-C
Labotatoty Representative
642 Tantco Road, Reidsville, Noi th Carolina 27320
tel [phone] fax [phone]

11/07/14
Shamrock Environmental Corporation
5106 Corporate Park Drive
Browns Summit {NC 27214
(335)-375-1989
CHAIN OF CUSTODY
Environmental Audrf Sample
Fax# [phone] Sampled By Jim_ Hollingsworth
�iii�ii��■i�ii�■�i��ir
��i�ii�
i■i�■i
comments
Reltnquishea By C� Received By
Relinquished By x-- Received By
3S'

SRAMROCK
ENVIRONMENTAL CORPORATION
Test Method
Laboratory Certification
Sample Received
Sample ID
Results
Results Certified By
Date
PH by Meter
EPA Method 150 1
5481
11 /06/2014 7 20pm
Sw -00 I
640

i
�r
ii
11/07/14 I CHAIN OF CUSTODY
F
s
Shamrock Environmental Corporation
6106 Corporate Park Drive Environmental Audit Sample
Browns Summit NC 27214 E
(336)-375-1989 Fax # [phone] Sampled By Jim Hollingsworth
s
,i
Sample
Name
W&FTEM4
MM�,
Preservative
'. . • Eft ••
�.
��
�•
�',
■�
•
_��',
Comments
i
Relinquished By
Relinquished By
I
i 1
pi
F
,
9
�I
Received By
Received By

USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK AT US 220 Page 1 of 3
USGS Home
Contact USGS
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Category Geographic Area
Surface Water I United States v GO
• Try our new Mobile -friendly water data site from your mobile device'
• Full News 1®
USGS 02094770 SOUTH BUFFALO CREEK AT US
220 AT GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
This station is operated in cooperation with the City of Greensboro,
North Carolina
QREEliSBdRO
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
© 00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
❑ 00060 Discharge(Mean,Max ,Min )
Output format
OGraph
OGraph w/ stats
OGraph w/ meas
OGraph w/ (up to 3) parms W-+
*Table
OTab-separated
Period of Record
2000-01-01 2014-12- 22
1998-07-21 2014-12-22
1998-08-01 2014-12-22
http //waterdata usgs gov/nwis/dv"cb_00045=on&format=html&site_no=02094770&refe 12/23/2014

' USGS Current Conditions for USGS 02094770 SOUTH BUFFALO CREEK Al US 220
Page 2 of 3
Days (4
-- or --
Begin date
2014-11-03
End date
Explanation
EfliProvisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
gi
Data Tips
Explanation of terms
Subscribe for system changes
News
Accessibility Plug -Ins FOIA Privacy
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation
URL http //waterdata usgs gov/nwis/dv7
Policies and Notices
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 201.4-12-23 15 25 07 EST
0 49 0 47 vaww02
USA.g�r,�
TAKIC PRIOC
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&site_no=02094770&refe 12/23/2014

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No NCGO80000
Date submitted 06 17 2014
CERTIFICATE OF COVERAGE NO NCG08 0791
FACILITY NAME Shamrock Environmental Corporation
COUNTY Guilford
PERSON COLLECTING SAMPLES Jim Hollingsworth
LABORATORY_ Meritech/Shamrock Lab Cert # 165/5481
Comments on sample collection or analysis
SAMPLE COLLECTION YEAR 2014
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ^❑Trout ❑PNA
RECEIVED ❑Zero -flow ❑Water Supply ❑SA
®Other WS-V NSW
JUN 2 0 2014
WATER (Jt1Hu f x aE{,TION PLEASE REMEMBER TO SIGN ON THE REVERSE
VFnR1ulATf.)1 f PporFc 4f ('
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new mtt oNr o{dIT er 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 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
-
PartB 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
SWO-001
04/07/2014
<5mg/L
43 mg/L
768
f 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 _4 07 2014 (first event sampled)
Total Event Precipitation (inches) 161
Date NA (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches) NA
Note If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses See Genera! 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 ❑ NO ❑
REGIONAL OFFICE CONTACT NAME
Mail an original and one copy of this DMR, rncludinq a!1 "Na Discharge"reports, within 30 days of recerpt o 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
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 "
(Signatur oLP'ermlttee) (Date)
Additional copies of this form may be downloaded at http //portal ncdenr ore/web/wq/ws/s_u/npdessw#itab-4
SWU-250 last revised April 11, 2013
Page 2 of 2

A�
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form, please visit http//aortal ncdenr org/web/wq/ws/su/nndessw#tab 4
Permit No N/C/ G / 0 / 8 / 0 / 0/ Q / 0 / or Certificate of Coverage No
Facility Name Shamrock Environmental Corporation
County Guilford Phone No 336 375 1989
Inspector Jim Hollingsworth
Date of Inspection 04/07/2014
Time of Inspection 09 45 a m
Total Event Precipitation (inches) 161
Was this a "Representative Storm Event" or °Measureable Storm Event" as defined by the permit?
(See information below)
® Yes ❑ No
Please verify whether Qualitative Monitoring must be performed during a "representative storm
event" or "measureable storm event" (requirements vary, depending on the permit)
Qualitative monitoring requirements vary Most permits require qualitative monitoring to be
performed during a "representative storm event" or during a "measureable storm event " However,
some permits do not have this requirement Please refer to these definitions, if applicable
A "representative storm event" is a storm event that measures greater than 0 1 inches of rainfall
and that is preceded by at least 72 hours (3 days) in which no storm event measuring greater than
0 1 inches has occurred A single storm event may contain up to 10 consecutive hours of no
precipitation
A "measurable storm event" is a storm event that results in an actual discharge from the E
t
permitted site outfall The previous measurable storm event must have been at least 72 hours
prior The 72-hour storm interval does not apply if the permittee is able to document that a shorter I'I
interval is representative for local storm events during the sampling period, and the permittee
obtains approval from the local DWQ Regional Office
By this signature, I certify that this report is accurate and complete to the best of my knowledge
of Permittee or Designee)
Page 1 of 2
5WU 242 Last modified 10/25/2012

1 Outfall Description
Outfall No 001 Structure (pipe, ditch, etc ) Pipe
Receiving Stream S Buffalo Creek
Describe the industrial activities that occur within the outfall drainage area Light Industrial
2 Color Describe the color of the discharge using basic colors (red, brown, blue, etc ) and tint
(light, medium, dark) as descriptors Clear
3 Odor Describe any distinct odors that the discharge may have (I e , smells strongly of oil,
weak chlorine odor, etc) None
4 Clarity Choose the number which best describes the clarity of the discharge, where 1 is
clear and 5 is very cloudy
1 X 3 4 5
5 Floating Solids Choose the number which best describes the amount of floating solids in
the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids
X 2 3 4 5
6 Suspended Solids Choose the number which best describes the amount of suspended
solids in the stormwater discharge, where 1 is no solids and 5 is extremely muddy
X 2 3 4 5
7 Is there any foam in the stormwater discharge? Yes X No
8 Is there an oil sheen in the stormwater discharge? Yes X No
9 Is there evidence of erosion or deposition at the outfall? Yes X No
10 Other Obvious Indicators of Stormwater Pollution
List and describe None observed
Note Low clarity, high solids, and/or the presence of foam, oil sheen, or erosion/deposition
may be indicative of pollutant exposure These conditions warrant further investigation
Page 2 of 2
SWU 242 Last modified 10/25/2012

SHAMPOCK
ENVIRONMENTAL CORPORATION
A
Test Method
Laboratory Certification
Sample Received
Sample ID
Results
DH by Meter
EPA Method 150 1
5481
04/07/14 9 50am
SW-001
768
Results Certified By
Date o /G7%x

Meritech, Inc.
Environmental Laboratory
Laboratory Certiflcatlon No 165
Contact Jay Gainer/Jim Hollingsworth Report Date 4/17/2014
Client ShamtockEnvironmental Cot p Project# 05 TKC-14-5999
519 Patton Ave
Gi eensboro, NC 27406 Date Sample Rcvd 4/13/2014
Meritech Wotk01det # 04061404 Sample S 14091 Giab 4/7/14
Parameters Result Analysis Date Reporting Liml, Method
Total Suspended Solids 43 rng/L 4/9/14 2 5 mg/L SM 2540 D
Oil & Grease (HEM) < 5 mg/L 4/14/14 5 mg/L EPA 1664A
I hereby certify that I have reviewed and approve these data & I ks-
Laboi atory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel [phone] fax [phone]

Chain of Custody Record (COC)
Client S U v�
Address Cc t e �� '�
(7 �ir>s �,.� r —J`J
?7 I
,
Attention
NPDES#
Phone
I
FaX
Enmd
Project
P o #
ERrTR".
� INC.
ENVIRONMENTAL LABORATORIES
A.—Z A Dmson of Water Technology and Controls, /na
Phone 1-336mM-4748
642 Tamco Rd Fax 1-336�42-1522
Reidsville, NC Z7320 Email srmrtechgbellsouth net
Web Sde www meritech-lab&com
`RUSH work Turn must have p or approval
Sid (10 days)
Qj
3 - 5 Day
Q
24 - 48 Hr
Q
Sample
Location/ID #
Sampling Dates & Times
Person7aIo Sam le Si ature
Rr�od mw
LaO Y�
START
END
Co-P,
Gam'
# of
corns.
Tests Required
2M.s / 2W 7
pH OK7
c12OK?
Data
rune
Dace
Time
z
'� 5 �{
==F
CDfiipO5liDF #
,lug #
'"Decttlorination
(<U 5 pprn) of Ammonia, Cyanide, Phenol or iKN samples must be done in the held prior to preservation
Comments
Method of ShipnwnL
❑ UPS
Fed EX
❑ Hand Delivery
❑ over
Are these results reguiatory purposes
YES NO ❑ 7m
Report results �n
S/ mg/Kg ❑ V� ❑
On [cep
Temperature On Receipt .
Reiinqu Time
Received by Data Time
wished by Q2tR Tune
7 3 O
by Dare T,me
fS3Z�
Re r, D rim 2
by 1 rF PIT

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 1 of 3
USGS Home
Contact USGS
Search USGS
National Water Information System: Web Interface
USGS Water Resources
Click to hideNews Bulletins
Data Category Geo ra hoc Area
Surface Water v United States v GO
• Try our new Mobile -friendly water data site from your mobile device,
• Full News I®
USGS 02095000 SOUTH BUFFALO CR NEAR
GREENSBORO, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site Time -series Daily data v GO
Click to hidestation-specific text
nnj�
This station is operated in cooperation with the City of Greensboro,
North Carolina
DarrHSeOND,
Boating safety tips
This station managed by the Raleigh Field Office
Available Parameters
❑ All 3 Available Parameters for this site
❑ 00060 Discharge(Mean,Max ,Min )
❑./ 00045 Precipitation(Sum)
❑ 00065 Gage height(Mean,Max ,Min )
Output format
O Graph
OGraph w/ stats
O Graph w/ meas
OGraph w/ (up to 3) parms NEW
Period of Record
1928-09-01 2014-06-16
1998-08-01 2014-06-16
1998-07-21 2014-06-16
http //waterdata usgs gov/nwis/dv'?cb_00045=on&format=html&site_no=02095000&rcferr 6/17/2014

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 2 of 3
*Table
OTab-separated
Days (4) Summary of all aval
Instantaneous -data
-- or --
Begin date
2014-04-04
End date
Explanation
UProvisional data subject to revision
Questions about sites/data?
Feedback on this web site
Automated retrievals
Help
Data Tips
Explanation of terms
Subscribe for system changes
News
Ite GO
Accessibility Plug -Ins FOIA Privacy Policies and Notices
U S Department of the Interior I U S Geological Survey
Title USGS Surface -Water Daily Data for the Nation =901
URL http //waterdata usgs gov/nwis/dv7 7AXV i'A109
http //waterdata usgs gov/nwis/dv?cb_00045=on&format=html&srte_no=02095000&referr 6/17/2014

USGS Current Conditions for USGS 02095000 SOUTH BUFFALO CR NEAR GREENS Page 3 of 3
Page Contact Information North Carolina Water Data Support Team
Page Last Modified 2014-06-17 18 12 19 EDT
0 73 0 49 vawwOl
http Hwaterdata usgs gov/nwis/dv9cb_00045=on&format=html&site_no=02095000&referr 6/17/2014