NCG080791_MONITORING INFO_20200115

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
ljC G 0 p D-� v/
DOC TYPE
❑ HISTORICAL FILE
N MONITORING REPORTS
DOC DATE
❑ 15
YYYYMMDD

�lJ� �I. �L�itl W Va1
ENVIRONMENTAL CORPORATION
January 14, 2020
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 • [e-mail]
RECEIVED
JAN 15 2020
CENTRAL FILES
DWft SECTION
Please find enclosed documents. This data consists of second semi-annual sampling and annual
summary. The results of the sampling event demonstrate conformance with pennit standards.
For any questions related to this matter, please contact me at 800.881.1098.
Sincerely,
Jim)tor
ingswor CIH, C , CHMM, REM
Dirof Health, Safety & Environmental
Enclosure
Cc: Tim Hyatt
Chris Freeman
Steve Davis
Greg Kiser
Fi1e:2019-10-30.SWDMRCoverplussannual Page I of I

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM
Calendar Year 2,019
Individual NPDES Permit No.
or
Certificate of Coverage (COC) No. NCG❑8 EDU ❑i 6 g 0-2 1 Z 'k
This monitoring report summary of the calendar year should be kept on file on -site with the facility SPPP.
Facility Name: Shamrock Environmental Corporation
County: Guilford
Phone Number: (336 ) 375.1989
Outfall No. 001
Total no. of SDOs monitored 1
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No ❑�
Yes ❑ No ❑i
Yes ❑ 1 No
"ECEiVEL.
JAN 15 in",!
Parameter, (units)
Total
Rainfall,
inches
Oil & Grease
HEM
TSS
pH
(pH Units)
Benchmark
Date
mmSample
Collected,lddl
mmlddlyy
N/A
■-__---_-
4/5/2019
0.71
<5 mg/L
14 mg/L
7.1
i
10/30/2019
1.48
<5 mg/L
8 mg/L
7.8
I
I
I
SW U-264 - Generic Annual DMR
Last revised 6/01/2016

Additional Outfall Attachment
Outfall No.
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ �NoO
I Parameter, (units)
Total
Rainfall,
inches
Benchmark
Date Sample
ol lected,
Collected
mmlddlyy
N/A
■--_--�--
i
4
SWU-264 - Generic Annual DMR
Last revised 610112018.,

1
" 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 z c%imprisonment for knowing violations."
Signature
Date 1/14/2020
For questions, contact your local Regional Office:
DEMLR Regional Office Contact Information:
ASHEVILLE REGIONAL OFFICE
FAYETTEVILLE REGIONAL OFFICE
MOORESVILLE REGIONAL OFFICE
2090 US Highway 70
225 Green Street
610 East Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville, NC 28115
[phone]
Fayetteville, NC 28301-5043
[phone]
[phone]
RALEIGH REGIONAL OFFICE
IWASHINGTON REGIONAL OFFICE
IWILNIINGTON REGIONAL OFFICE
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
[phone]
NVINSTON-SALENI REGIONAL OFFICE
CENTRAL OFFICE
1617 Mail Service Center
450 Hanes Mill Rd, Suite 300
Winston-Salem, NC 27105
Raleigh, NC 27699-1617
[phone]
[phone]
SW U-264 - Generic Annual DMR
Last revised 610112018

NCO
Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling our this form, please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
n pdes-sto mi water-gps
Permit No.: N/C/,G/ 8/ 0/ 0 /0 /0 /0 / or Certificate of Coverage No.: N/C/G/ 0/ 8/ 0 /7 /9 /1 /
Facility Name: Shamrock Environmental Corporation
County: Guilford
Inspector: dim Hollingsworth
Date of Inspection: 10/30/2019
Time of Inspection: 1730
Total Event Precipitation (inches): 1.48
Phone No. 336.375.1989
All permits require qualitative monitoring to be performed during a "measurable storm event."
A "measurable storm event" is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable stone event must have been at least 72 hours prior. The 72-hour stone
interval does not apply if the permittee is able to document that a shorter interval is representative for
local stone events during the sampling period, and the perntittee obtains approval from the local DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature �f #ernlirtee or Designee)
1. Outfall Description:
Outfall No. 001
Receiving Stream:
S Buffalo Creek
Wit•
Structure (pipe, ditch, etc.): Pipe/Ditch
Describe the industrial activities that occur within the outfall drainage area: Light Industrial
Page 1 of 2
S W 11-242, Last modif ied 06/01 /2018

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:
(I 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stonnwater 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 stonnwater discharge, where I is no solids and 5 is extremely muddy:
2 3 4 5
7. Is there any foam in the stonnwater discharge? O Yes XNo.
8. Is there an oil sheen in the stonnwater discharge? OYes V-,,No. _
9. Is there evidence of erosion or deposition at the outfall? O Yes �(No.
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
SWU442, Last modified 06/01/2018

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Energy, Mineral and Land Resources General Permit No. NCG080000
Date submitted 01/14/2020
CERTIFICATE OF COVERAGE NO. NCGO8 O 7 9 1 SAMPLE COLLECTIONNEAR 2019
FACILITY NAME Shamrock Environmental Corporation SAMPLE PERIOD ❑ lan-June ❑0 July -Dec
COUNTY Guilford or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES .Jim Hollingsworth DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Mentch/shamrock Lab Cert. # 165/5481 ❑Zero -flow ❑Water Supply ❑SA
Comments on sample collection or analysis: Mother ws-v; vsw
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Did this facility perform Vehicle Maintenance Activities using Imore than 55 gallons of new oil per month? ❑ yes ❑ no (if yes, complete Part A)
Part A: Vehicle & Equipment Maintenance Areas Monitoring Requirements (If applicable) ❑ 1 No discharge this period'
Outfall No.
Date Sample Collected'
(mo/dd/yr)
24-hour rainfall amount,
Inches'
Non -Polar Oil & Grease
mg/L
Total Suspended Solids,
mg/L
New Motor or Hydraulic Oil Usage,
gal/mon
Benchmarks
_
-
15
100 or 504
Parameter Code
-
46529
00552
C0530
NCOIL
S W-001
10/30/2019
1 A8
<5
8
NA
I
1
' 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.
3The 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.
a 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 example, 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 me/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

Part B: 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,
Inches'
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
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 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 DEMLR REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME: j
case of "No Discharge" reaortsl 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:
l
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision inaccordance 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 pena,Jties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
Signature of
Permit Date: 11/1/2018-5/31/2021
Date
SWU-248, last revised 11/1/2018
Page 2 of 2

SHAMROCK
ENVIRONMENTAL CORPORATION
pH by Meter
Test Method: EPA Method 150.1
Laboratory Certification: 5481
Sample Collected: October 30, 2019 5:30pm
Sample ID: SW-001
Sample Analyzed: October 30, 2019 5:40pm
Sample ID: SW-001
Results: 7.8 pH Units
Results Certified By: /&"
014
Jin o11in swort
Date: October 30, 2019

ulna Chain of Custody Record (COC)
, NPDES#:
Client:"�%�/F�LIv�- L-.i� ✓. Phone: 331� 3 l�1SC� 1
Address:. �5 i�c��, �' Fax:
4a/72lnS1o=:17?7 NC Email: 611 svvs
t 0
ProjedI�a`�L' �\ :N'z SWc)
P.O.#: — k C — C
Turn a
+ k.
Attention: needs prior rora
'RUSH work needs approval,
How would yourfike your report sent? Charges Anoll
Circle all that apply: (preferr , Fax, Mail 5td 10 da ) 3-5 Days 24 -48Hrs
ail
p�■/
li/I ERITECH I N\ra
1
ENVIRONMENTAL LABORATORIES
642 Tamco Rd. Phone: [phone]
:. Reidsville NC 27320 Fax: [phone]
Email: [e-mail]
www.meritechlabs.com
Sample Location and/or ID #
Sampling Dates & Times
Person Taking 9ammpl (igniQr�nt): v `
- i 1�
Lab Use Only
Start
End
Comp??
Grab.
roof
Cont.
Test(s)
Required
On Ice?
Yes / No
pH OK?
7
ClOK.
ate
Time
Date
Time
s z
4
i
I
i
TemperatureUpon
Receipt: Z -
Method
Dechlorination <0.5 m) of Ammonia, Cyanide, Phenol and TKN samples must be done in t Id prior to presentation. "•
of
Shipment:
Comments: ,i14 Jw,� 4-) * P,JA
"\ ` 1 IT �'1 rIV, J
Compositor#
1jug
UPS
#
I�❑�
c Fed Ex
Are gs esultsforregulatorypurposes? Yes No [,J!
Rep results In: mg/L X I ug/L
Hand Delivery
Reli ul - Date: Time:
/
Rec te: Time:
I tt i%l
Other
/7p
R i uis ed y: D O Time: l/1 (1!
l/ C J
R ce' dby: Date: Time:
Relinqu a y: a Time:
', a M5�t / (Pate: Time:
Received by Lab: kqfr/ tl i

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: Jim Hollingsworth
Client: Shamrock Environmental Corp.
6106 Corporate Park Drive
Brown Summit, NC 27455
Report Date:
11/7/2019
Project:
Patton Ave SW
P.O. it:
05-TKC-19-5999
Date Sample Rcvd:
11/1/2019
Meritech Work Order # 11011909 Sample: 519268 Grab
Parameters--—Resuli — —`Analysis Date — Reportin imit
10/30/19
Total Suspended Solids 8 mg/L 11/5/19 2.5 mg/L SM 2540 D
Oil & Grease (HEM) <5 mg/L 11/5/19 5 mg/L EPA 1664B
I hereby certify that 1 have reviewed and approve these data. Laboratory
oratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax.[phone]

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USGS 0209553650 BUFFALO -CREEK AT SR2819 NR MCLEANSVILLE, NC
PROVISIONAL DATA SUBJECT TO REVISION
Available data for this site GO
Click to hidestation-specific text
This station is operated in cooperation with the City of Greensboro, North Carolina.
OREERsaeRO
This station managed by the South Atlantic WSC Raleigh Field Office.
Available Parameters Period of Record
D All 3 Available Parameters for this site
Ov 00045 Pretipitation(Sum) 1998-08-01 2020-01-13
O 00060 Discharge(Max., Min., Mean) 1998-08-01 2020.01-13
O 00065 Gage height(Max., Min., Mean) 1998-07-17 2020-01-13
Output format
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O Graph w/ (up to 3) parms
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Days (4) Summary of all available data for this site
_.Instantaneous -data availability statement
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Begin date
2019-10-27
End date
7

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Page Last Modified: 2020-01-14 14:39:53 EST - -- - -- - - --
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