NCG140350_MONITORING INFO_20190204

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
1v q 0,35
DOC TYPE
❑HISTORICAL FILE
,-R�MONITORING REPORTS
DOC DATE
YYYYMMDD

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT DMR —WASTEWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG140000
Calendar Year 2018
'Report ALL WASTEWATER monitoring data on this form (include "No Flow'/"No Discharge" and Limit Violations) from
the previous calendar vear to the DEQ by MARCH 1 of each year.
Certificate of Coverage No. NCG14
Facility Name: Thomas Concrete - Wake Forest Plant
r.nt rnty- Wake
Phone Number: (919 ) 562-1909
Certified Laboratory ESC
CEN l-RAL FBI
CTl4Nl al'I Walls monitored 1
Lab #' ENV 375
Lab #
Wastewater (WW) Discharge Outfall No. 001
Does this outfall discharge WW to SA waters? Yes ❑ No ❑✓
Does this outfall discharge WW to SB or PNA waters? Yes ❑ No M
Does this outfall discharge WW to HOW or ORW waters? Yes ❑ No ✓❑
If so, what is the 7Q10 flow rate? or Tidally influenced waters, 7Q10 not available ❑
Does this outfall discharge WW to Trout jr) designated waters? Yes ❑ No ❑✓
Were there any limit violations in the calendar year? Yes Q No ❑
Outfall No.
001
Daily Flow Rate,
cfs
pH,
SU
TSS,
mgll
SS,
mlll
If applicable
Non -Polar O&G (EPA Method 1664
(SGT-HEM)), mgll
Effluent
Limitations
Gaily Maximum
NQW orORW
50% of 7Q10
Indicate NO FLOW if
applicable
freshwater
6.0-9.0
saltwater
6.8-8.5
Standard
30
HOW
20
HOW l ORW and Tr, or
PNA
10
HQW, ORW, SA,
SB,PNA. orany
Troa,
5
No Limit
Samples above Benchmark
subject to Tiered Responses
15
Date
Sample
Collected,
molddlyr
w �z
`
x
:
6/30118
NO DISCHARGE SEMIANNUAL 1
10/11/18
10,45
862
NIA
NIA
Permit Date 8/1/2017 — 6/3012022
Last Revised 8-22-2017

Certificate of Coverage No. N CG 14 ®3❑ 50®
CERTIFICATION
"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."
[Requlred by 40 CFR §122.24
Signature L— vc N o-
Date
Mail Annual Summary Wastewater DMR to the NCDEQ Central Office:
Note the address is correct— Central Files Is housed in DWR (not DEMLR)
N.C. Department of Environmental Quality (DEQ)
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Central Files Telephone [phone]
Questions? Contact DEMLR Stormwater Permitting Staff in the Central Office at:
[phone]
Permit Date 811/2017—'6I3012022
Last Revised 8-22-2017

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) — STORMWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG140000
Calendar Year 2018
*Report ALL STORMWATER monitoring data on this form (indude "No Flow "Mo Discharge' and Benchmark
Exceedances) from the previous calendar year to the DEQ by MARCH 1 of each year.
Certificate of Coverage No. NCG 140350
Facility Name: Thomas Concrete of Carolina — Wake Forest Plant FEB 4 4 2019
County: Wake CENTRAL FILES
Phone Number: [phone] Total no. of SDOs monitorecptj�R SECTION
Certified Laboratory ESC Lab # ENV 375
Lab #
Stormwater Discharge Outfall (SDO) No. 001 VMA Outfall? Yes ❑ No
Is this outfall currently in Tier 2 for any parameter? Yes ® No ❑
Was this outfall ever in Tier 2 during the past year? Yes ® No ❑
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency ❑
Yes, received approval from DEMLR to reduce monitoring frequency ❑
Other ❑
Outfall No.
Total Rainfall,
inches
Total
Suspended
Solids { ) TSS,
mg/1
pH,
SU
Non -polar O&G
(EPA Method
1664 ( SGT-HEM)) ,
mgll (VMA)
liapplicable
New Motor Oil
Usage (gallmo.)
lrapprrcabfe
Stormwa ter
Benchmarks
Indicate NO FLOW if
applicable
Circle Benchmark
100150
6.0-9.0
15
}55 gahlmo. average requires 75S and
Non -polar O&Gmenitoring
Date Sample
Collected,
moldd! r
01/31/18
NO FLOW
02/28/18
NO FLOW
03/24/18
0.91
114
12.04
N/A
NIA
04/24/18
0.85
398
11.09
N/A
NIA
05/31/18
NO FLOW
06/30/18
NO FLOW
07/30118
1.49
339
11.51
NIA
NIA
08/31/18
NO FLOW
09/30/18
NO FLOW
10/11/18
2.05
862
10.45
NIA
NIA
11/30/18
NO FLOW
12/31/18
NO FLOW
Permit Date 8/1/2017 — 6/30/2022
Last Revised 8-22-2015

Certificate of Coverage No. NCG140350
CERTIFICATION
"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."
[Required by 40 CFR §922,2
Signature
Date 1-so-0
Mail Annual Summary Stormwater DMR to the NCDEQ Central Office:
Note the address is correct— Central Files is housed in DWR (not DEMLR)
N.C. Department of Environmental Quality (DEQ)
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Central Files Telephone [phone]
Questions? Contact DEMLR Stormwater Permitting Staff in the Central Office at:
[phone]
Permit Date $1112017 — 6/30/2022
Last Revised 8-22-2015

ANNUAL SUMMARY DISCHARGE MONITORING
REPORT (DMR) —STORMWATER
SUBMIT TO CENTRAL OFFICE*
General Permit No. NCG140000
Calendar Year 2017
*Report ALL STORMWATER monitoring data on this form (include "No Flow"1"No Discharge" and Benchmark
Exceedances) from the previous calendar year to the DEQ by MARCH I7ofeqchiyea�j r-
.�
Certificate of Coverage No, NCG140350
Facility Name: Thomas Concrete of Carolina - Wake Forest Plant
County: Wake
Phone Number: [phone]
Certified Laboratory ESC
FEB 2 0 Z018
CENTRAL FILES
DWR SECTION
Total no. of SDOs monitored 1
Lab # ENV 375
Lab #
Stormwater Discharge Outfall (SDO) No. 001 VMA Outfall? Yes ❑ No
Is this outfall currently in Tier 2 for any parameter? Yes ® No ❑
Was this outfall ever in Tier 2 during the past year? Yes ® No ❑
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency ❑
Yes, received approval from DEMLR to reduce monitoring frequency ❑
Other ❑
Outfall No.
Total Rainfall,
inches
Total
Suspended
Solids TSS
{ },
mg/1
pH,
SU
Non -polar O&G
(EPA Method
1664 SGT-HEM
(}�
mgll (VMA)
!f applicable
New Motor Oil
Usage (gallmo.)
Napplicable
Stormwater
Benchmarks
Indicate NO FLOWif
applicable
circle Benchmark
1 00150
�7
6.0-9. �
1 $
>s5 g allmo, average requires TSS and
Non -polar O&G monitoring
Date Sample
Collected,MMM
moldd/ r
01/20/17
172
02/28/17
NO FLOW
03/31/17
1.25
47.7
11.52
04/30/17
NO FLOW
05/31/17
NO FLOW
06/30/17
NO FLOW
07/31/17
NO FLOW
08/31/17
NO FLOW
09/30/17
NO FLOW
10/31/17
NO FLOW
11/30/17 =NO
FLOW
12/31/17 1
NO FLOW
Permit Date 8/1/2017 - 6/30/2022
Last Revised 8-22-2015

Certificate of Coverage No. NCG140350
Additional Outfall Attachment (make copies as needed for additional outfalls)
Stormwater Discharge Outfall (SDO} No. VMA Outfall? Yes ❑ No ❑
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No ❑
Was this outfall ever in Tier 2 during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency ❑
Yes, received approval from DEMLR to reduce monitoring frequency ❑
Other ❑
Outfall No.
Total Rainfall,
inches
Total
Suspended
Solids , ( }
m II
pH,
SU
Non -polar O&G
(EPA Method
1664TSS ( SGT-HEM)? ,
mg11 (VMA)
H applicable
New Motor Oil
Usage (gallmo.)
Happucabre
stormwater
Benchmarks
Indicate NO FLOWN
applicable
Circle Benchmark
100150
60-90
..
1 �
�a5 g allmo. average requires T55 and
Non -polar O&G monitoring
Date Sample
Collected,
molddl r
Permit Date 8/1/2017 — 6/30/2022
Last Revised 8-22-2015

Certificate of Coverage No. NCG 140350
Additional Outfall Attachment (make copies as needed for additional outfalls)
Stormwater Discharge Outfall (SDO) No. VMA Outfall? Yes ❑ No ❑
Is this outfall currently in Tier 2 for any parameter? Yes ❑ No ❑
Was this outfall ever in Tier 2 during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, was monthly monitoring discontinued?
Yes, enough consecutive samples below benchmarks to decrease frequency ❑
Yes, received approval from DEMLR to reduce monitoring frequency ❑
Other ❑
Outfall No.
Total Rainfall,
inches
Total
Sus ended p
Solids (TSS),
mg/1
p H,
SU
Non -polar O&G
(EPA Method
1664 (SGT-HEM)),
mgll (VMA)
New Motor Oil
Usage (gal/mo.)
Stormwater
Benchmarks
Indicate NO FLOW7I
applicable
Circle Benchmark
1 OQIrJ�
.
6.0-9�
'� �
�55 gallmo. average requires TSS and
Non-polar0&G monitoring
Date Sample
Collected,
molddl r
Permit Date 8/112017 — 6/30/2022
Last Revised 8-22-2015

Certificate of Coverage No. NCG 140350
CERTIFICATION
"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."
[Required by 40 CFR §122,22]
Signature
Date a
Mail Annual Summary Stormwater DMR to the NCDEQ Central Office:
Note the address is correct — Central Files is housed in DWR (not DEMLR)
N.C. Department of Environmental Quality (DEQ)
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Central Files Telephone [phone]
Questions? Contact DEMLR Stormwater Permitting Staff in the Central Office at:
[phone]
Permit Date 811/2017 — 6/30/2022
Last Revised 8-22-2015

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: April Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2017
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA
❑Trout ®Other,
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Samplingx
-
-
6-9
100 ,
-
-
-
001
NO FLOW
Click here to
enter text.
Click here to
enter text.
Click here to
enter text.
Click here to
enter text.
y
31
' If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)'
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
fi of Months
in Tier 2
Sampling2
6-9
15 7.100
2.,3
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDEN CES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coov of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow" 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."
CLiwzzez 441;ri 4/30/2017
(Signature of Permittee) 61 (Date)
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 3 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring ReporRECEIVED
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Kevin Kelt
CERTIFIED LABORATORY:_ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2017
APR 17 Z017
CENTRAL FILES
DWR SECTION
SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec ®Jan -March ❑April -June
COUNTY: Wake
PHONE NO. (_704 _)853-9437
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: []SA ❑HQW ❑PNA ❑Trout ®Other
OPTIONAL INFO:
Outfall No.
Date Sample
Collected
(mm/dd/yr}
Type of Wastewater
x
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH using
method 1664A
6
SGTdiEM
(mglL]
Discharge
Duration
(minutes)
Total Flow
7
{gallons/day}
-
-
-
6-93.4
303.1
S3-
001
3/31/2017
VE, RM
11.52
47.7
<0.033
60
Total Flow:
350 gpd
1 If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
Z Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
31f an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2

4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TS5 limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 0213.0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW", "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
YOU MUSTSIGN THIS CERTIFICATION FOR ANYINFORMATION 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."
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 2 of 2

(Signature of Permittee)
Permit Date:7/1/2010-06/30/2015
3/31/2017
(Date)
Last Revised 07/13/11
Page 3 of 2

AN"AwA
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out thisform, please visit: http://aortal.ncdenr.org/web/Ir/nodes-stormwater/
Permit No.: N/C/_/_/`/_/_/_/�/ or Certificate of Coverage No.: N/C/fx/ 1 /4_/-u 0
Facility Name: Thomas Concrete of Carolina-Wake_Forest Plant
County: Wake Phone No. (704). 853-9437
Inspector: Kevin Kelt
Date of Inspection:.03131117
Time of Inspection: 1230
Total Event Precipitation (inches): 1.25"
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, I certify that this report is accurate and complete to the best of my knowledge:
-SQ.1�2Gco,�
(Signature of Permittee or Designee)
Pagel of 2
SWU-242, Last modified 7/31/2013

1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Pipe into collection trench
Receiving Stream: Unnamed tributary to Neuse River
Describe the industrial activities that occur within the outfall drainage area: Bulk storage
f raw materials vehicle transport, wastewater treatment.
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: clear. very light yellow tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,
weak chlorine odor, etc.): No distinct 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
S. 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:
1 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 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
B. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 11.52
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

STORMIMATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: March Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2017
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? [—]YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA
❑Trout ®Other,
Outfall No.
Date Sample Collected
(mo/dd/yr OR
NO FLOW)'
pH
(Standard
Units]
TS5
(mg/L)
Event
Duration
(minutes)
Total
4
Rainfall
(in]
In Tier 2
Monthly
Monitoring?
{y/n)
# of Months in Tier
2 Samplingz
-
-
6-9
100 •
-
-
-
-
001
3/31/2017
11.52
47.7
60
1.25
y
30
Nin
c,)( n
}t
.
' If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
' If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/l, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/l.
"For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected 1
(mo/dd/yr)
PH
(standard
Units)
TPH using method
I664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Sampling2
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Orieinal and one coov of this DMR fincludinx all "No Flow" & "No Discharee" reports] within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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.
am aware that t�he�re�a�re�,significa t penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
ZYa4wW-e"' ? 3/31/2017
(Signature of Permittee)
Permit Date:7/1/2011-60/30/2015
(Date)
Last Revised 7/13/11 x.
Page 2 of 2

r;
A�M A A
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: http./Jportal.ncdenr.ore/web/lr/n des-stormwater/
Permit No.: N/C/T/_/_/_/_/�/_/ or Certificate of Coverage No.:
Facility Name: Thomas Concrete of Carolina -Wake Forest Plant
County: Wake Phone No. [phone]
Inspector: Kevin Kelt
Date of Inspection: 31 17
Time of Inspection: 1, 230
Total Event Precipitation (inches): 1.25"
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, I certify that this report is accurate and complete to the best of my knowledge:
, ¢7"X ew C��Uz
(Signature of Permittee or Designee)
Page 1 of 2
SWU-242, Last modified 7/31/2013

1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Pipe into collection trench
Receiving Stream: Unnamed tributary to Neuse River
Describe the industrial activities that occur within the outfall drainage area: Bulk storage
of raw materials, vehicle transport, wastewater treatment.
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: clear, very light yellow tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,
weak chlorine odor, etc.): No distinct 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
S. 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:
1 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 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 11.52
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

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: February Monitoring Event
Part A: Stormwater Monitoring Requirements
RECEIVED
SAMPLE COLLECTION YEAR: 2017 MAR 2 1 20111
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake CENTRAL FILES
PHONE NO. [phone] DWR SECTION
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA
❑Trout ®Other
Outfall No,
Date Sample
Collected
{mo/dd/yr OR
NO FLOW)1
pH
{Standard
Units}
TSS
(mg/L)
Event
Duration
{minutes}
Total
a
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
{y/n}
# of Months in Tier
2
2 Sampling
-
-
6-9
100 '
-
-
-
-
001
NO FLOW
29
' If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/l.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
2
Sampling
6-9
15
100 ,
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow" 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.
am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
C-jawtzze e 4G 2/28/2017
(Signature of Permittee) V (Date)
Permit bate: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 3 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2016
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant SAMPLE QUARTER: ❑Jul -Sept ®Oct -Dec ❑Jan -March [_]April -June
PERSON COLLECTING SAMPLES: Susan Bostian COUNTY: Wake
CERTIFIED LABORATORY: ESC Lab # ENV375
Q4 Lab #
LIMIT VIOLATIONS? YES ❑ NO
Part A: Wastewater Monitoring Requirements
PHONE NO. (_919 _)562-1909
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA []Trout ®Other
OPTIONAL INFO:
Outfall No.
Date Sample
Collected
(mm/dd/yr)
Type of Wastewater
z
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH usingDischarge
method 1664A
5GT-HE1Vl6
(mg/L)
Duration
(minutes)
Total Flow
(gallons da Y)7
-
-
-
6-93,4
303.5
53-
001
NO DISCHARGE
o� V�
CENT
1 >` L-
DWR
SECT16W
>� �.
1 If wastewater systems have not discharged in this quarter— report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
z Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 if an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2

' TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW", "NO DISCHARGE"] WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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."
12/31/2016
Permit Date: 7/1/2010-06/30/201SL-' Last Revised 07/13/11
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2016
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant SAMPLE QUARTER: ®Jul -Sept ❑Oct -Dec ❑Jan -March ❑April -June
PERSON COLLECTING SAMPLES: Susan Bostian COUNTY: Wake
CERTIFIED LABORATORY:_ESC Lab # ENV37S
Q3 Lab #
LIMIT VIOLATIONS? YES ❑ NO
Part A: Wastewater Monitoring Requirements
PHONE NO. (_919 _) 562-1909
ADD TO LISTSERVE? DYES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
OPTIONAL INFO:
Outfall No.
Date Sample
Collected
(mm/dd/yr)
Type of Wastewater
(VE, RM, MD)'
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH usingDischarge
method 1664A
S T-HEM'
Duration
(minutes)
Total Flow
,
(gallons/day)
-
-
-
6-93.4
303 s
53-
001
NO DISCHARGE
AN
FS
ION
Y.
1 If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
z Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 if an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
° pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
Permit Date:7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ, If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY INCLUDING ALL "NO FLOW" "NO DISCHARGE" WITHIN 30 DAYS OF RECEIPT OF SAMPLE OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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."
9/30/2016
Permit Date: 7/1/2010-06/30/2015
Last Revised 07/13/11
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2016
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec ❑Jan -March ®April -June
PERSON COLLECTING SAMPLES: Susan Bostian COUNTY: Wake
CERTIFIED LABORATORY: ESC Lab # ENV375 PHONE NO. (_919 _)562-1909
June WW Samples Lab # Click ADD TO LISTSERVE? ❑YES ®NO EMAIL:
here to enter text.
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitoring Requirements
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
OPTIONAL INFO:
Outfall No.
Date Sample
1
Collected
(mm/dd/yr)
Type of Wastewater
�
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
7PH usingDischarge
method 1664A
S THEM'
Duration
(minutes)
Total Flow
(gallons/day)'
-
-
6-93,4
303,
53
(15)6
-
001
NO DISCHARGE
171 i=r"—r---&
cr��
%II_%.'l.:I
V C
CENT i
ZAL FILES
UVVN
SECTION
' If wastewater systems have not discharged in this quarter —report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 if an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
Permit Date: 7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

° pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
7 Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY INCLUDING ALL "NO FLOW" "NO DISCHARGE" WITHIN 30 DAYS OF RECEIPT OF SAMPLE OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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."
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 2 of 2

(Signature of Permittee)
Permit Date:7/1/2010-06/30/2015
6/30/2016
(Date)
Last Revised 07/13/11
Page 3 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2016
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant SAMPLING PERIOD: ® July -December ❑ January -June
PERSON COLLECTING SAMPLES Kevin Kelt COUNTY Wake
CERTIFIED LABORATORY ESC Lab # ENV 375 PHONE NO. [phone]
Lab # ADD TO LISTSERVE? ❑YES ®NO EMAIL:
OPTIONAL INFO: December Monitoring Event DISCHARGING TO CLASS: USA ❑HQW ❑PNA []Trout ®Other,
Part A: Stormwater Monitoring Requirements
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
[Standard
Units)
TSS
[mg/L)
Event
Duration
(minutes)
Total a
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(Y/n)
# of Months in Tier
2
2 Sampling
-
-
6-9
100-
001
NO FLOW
27
f; Tr
NIL
1� /�
r�
_ _
E -.y I\A`
C
=NTRAL FILES
SECTION
' If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
Z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/l.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfalla
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
i
Sampling
6-9
15
100 ,
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copv of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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
am aware that there are significant enalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
1: is ' % 12/31/2016
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 3 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG14O35O
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375,
Lab #
OPTIONAL INFO: August Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA [-]Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)'
pH
(Standard
Units)
TSS
(mg/L}
Event
Duration
(minutes)
Total
a
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
st of Months in Tier
2
2 Sampling
-
-
6-9
100 '
-
-
-
-
001
NO FLOW
Y
23
17�r+1�'ll�
ern,
. %w—vL_i
V L_L-1
SEP 14
2016
DWR SFr.'
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/l, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/l.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(Standard
Units)
TPH using method
1664ASGT-NJcM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
in Tier 2
Monthly
Monitoring?
(y/n}
# of Months
in Tier Z
2
Sampling
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") to:
Division of Water Quality
Attn: DWQCentral 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.
am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
9/12/2016
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 3 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bostian
CERTIFIED LABORATORY: ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitorine Reauirements
SAMPLE COLLECTION YEAR: 2016
SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec
COUNTY: Wake
®Jan -March ❑April -June
PHONE NO. (_919 _) 562-1909
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
OPTIONAL INFO:
Outfall No.
Date Sample
1
Collected
(mm/dd/yr)
Type of Wastewater
2
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH usingDischarge
method 1664A
SGT HEM6
(mg/L)
Duration
(minutes)
Total Flow
,
(gallons/day)
-
-
-
5-43'4
303.s
53
(15)6
-
-
001
NO DISCHARGE
RAL Eli
-ES
N
' If wastewater systems have not discharged in this quarter— report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
` pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 T5S limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2

5 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY INCLUDING ALL "NO FLOW", "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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."
1:3aml
(Signature of Permittee)
Permit Date:7/1/2010-06/30/2015
4/30/2016
(Date)
Last Revised 07/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: April Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA []Trout ®Other,
Outfall No.
Date Sample
( Collected
mo/dd/yr OR
1
NO FLOW)
pH
(Standard
Units]
TSS
(mg/L]
Event
Duration
(minutes]
Total
4
Rainfall
[in)
In Tier 2
Monthly
Monitoring?
(V/n)
# of Months in Tier
2 Samplingz
-
-
6-92
100 ,
-
-
-
-
001
4/12/16
11.12
384
480
0.49"
Y
19
MAY
13 IJ i 0
CE
14TRAL FILES
UV
TION
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/l.
° For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
[mo/dd/yr}1
PH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
[minutes]
Total
,
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
[y/n]
# of Months
in Tier 2
z
Sampling
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE,REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coov of this DN1R (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN T141S 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.
am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
(Signature of Permittee)
5/31/2016
(Date)
Last Revised 7/13/11
Page 2 of 2
Permit Date: 7/1/2011-60/30/2015

RECEIVED
gj 19 Z016
CENTRAL FILES
DWR SECTION
STORMINATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCGI40000
CERTIFICATE OF COVERAGE No. NCG 1403SO
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant
PERSON COLLECTING SAMPLES Kevin L(elt
CERTIFIED LABORATORY ESC Lob ENV 375_
Lab a
OPTIONAL INFO: September Monitoring Event
Part A. Stormwater Monitoring Reouirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ®luly-0ecomber [] January -June
COUNTY Wake
PHONE NO. (919)S62-1909
ADD TO LISTSERVE7 OYES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA [-]Trout ®Other
' n -NO FLOW- or "NO DISCHARGE, Enter "NO FLOW' or "NO DISCHARGE' for each outfall here. Please make sure to mark the sample period above.
= If a value is In ehrtess of the benchmark, or outside the benchmark range (for pNI, you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly samppng shall be dare until 3 consecutive samples are below the benchmark or within the benchmark range
'TSS bendvnark values are 1W mg/I, except when dlstharglog to ORW, HQW, Trout, and PNA waters where they are 50 mg/i,
' Far each sampled measurablestorm event the total predpitation must be recorded using data from an an -site rain gauge.
Permit Date:7/112011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Acthrlty Monhorbw Reoulrements far fadgttes uslne> 55 Rai of new motor nillmanth — averaged ova a calendaryeaf.
ri
----------
----------
----------
----------
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL {INCLUDING VEHICLE MAINTENANCER YES ❑ NO
HAVE YOU CONTACTED THE REGION7 YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coov of this DMR (IncludsR all "No Flow' & "No Discharse" reports) within 30 days of recelpt o sample for at end of monitoring period
Division of Water Quality
Attn: DWQ Central Files
1617 Mall Service Center
Raleigh, North Carolina 27699-1617
MUMUST SIGN M-15 CEMICATION FOR ANY IMMINA770NREPORTED,
"I certlfy under pe Ity of law, that this document and all attachments were prepared under my direction or supervision In accordance with a system designed to
assure th ed personnel pro riy, gather a evaluate the Information submitted. Based on my Inquiry of the person or persons who manage the system, or
th ersons directly responsW o gather[ t Information, the Information submitted Is, to the best of my knowledge and belief, true, accurate, and complete.
am ne at there are signi(I nt naltles i bmkting false information, Including the possibility of Floes and Imprisonment for knowing violations."
i0131/ZU6
gnature of Permittee) (Date)
Permit Oate: 7/l/2011-60/30/2015 Last Revised 7113/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: June Monitoring Event
Part A: Stormwater Monitoring Requirements
MONITORI G'FORM
A
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ❑ July -December ® January -June 0
COUNTY Wake e`e�
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
PH
{standard
Units)
TSS
(mg/L)
Event
Duration
ura
(minutes)
Total
4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2
2 Sampling
-
-
6-9
100
-
-
-
-
001
6/28/2016
10.22
235
120
1.25
Y
21
,
f
L
r
�I lit
CENTRAL
DWR SE
If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
° For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
V EU
Zolb
FILES
'TION
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No,
Date Sample
Collected 1
(mo/dd/yr)
pH
(Standard
Units)
TPH using method
1664A SGT NEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
,
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Samplingz
6-9
15
100 ,
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Orieinal and one coov of this DMR [includine all "No Flow" & "No Discharee" reoortsl within 30 days of receipt of sample for at end of monitorine period
in case of "No Flow") -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
am aware that there aLrg significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
7/13/2016
(Si ature of Permittee) i1
Permit Date: 7/1/2011-60/30/2015
(Date)
Last Revised 7/13/11
Page 2 of 2

NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
Forguidance on filling out this form, please visit: h /portal.ncdenr.org/web/Ir/nodes-stormwater/
Permit No.: N/C/_/_/_/_/_/_/_/ or Certificate of Coverage No.:
Facility Name: Thomas Concrete of Carolina -Wake Forest Plant
County: Wake Phone No. L919) 562-1909
Inspector: Kevin Kelt
Date of Inspection: 06128/2016
Time of Inspection: 1335
Total Event Precipitation (inches): _1.25"
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below.)
® Yes ❑ No RECEIVED
Please verify whether Qualitative Monitoring mjulslt4plr�"ed during a "representative storm
event" or "measureable storm event" (requiri�r ua[y.�epRIding on the permit).
,-,VVrC
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:
(Signature of PermittVe or Designee)
Page 1 of 2
sWU-242, Last modified 7/31/2013

r
I. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Pipe into collection trench
Receiving Stream: Unnamed tributary to Neuse River
Describe the industrial activities that occur within the outfall drainage area: Bulk storage
of raw materials, vehicle transport, wastewater treatment.
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: clear, light brown
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,
weak chlorine odor, etc.): No distinct Qdor
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:
1 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 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH:
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

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2016
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant SAMPLING PERIOD: ® July -December ❑ January -June
PERSON COLLECTING SAMPLES Kevin Kelt COUNTY Wake
CERTIFIED LABORATORY ESC Lab # ENV 375 PHONE NO. [phone]
Lab # ADD TO LISTSERVE? DYES ®NO EMAIL:
OPTIONAL INFO: July Monitoring Event DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Part A: Stormwater Monitoring Requirements
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
1
NO FLOW)
PH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total 4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(Y/n)
# of Months in Tier
z
2 Sampling
-
-
6-9
100 '
-
-
-
-
001
NO FLOW
Y
22
A
�1
/ V
If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 orTier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 T55 benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected 1
(mo/dd/yr)
pH
(standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfall'
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Sampling2
6-9
15
100 ,
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copv of this DMR (including all "No Flow" & "No Discharge" reports] within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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 Permittee)
Permit Date: 7/1/2011-60/30/2015
8/16/2016
(Date)
Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 37S_
Lab #
OPTIONAL INFO: May Monitoring Event.
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: [] July -December ® January\` u e
COUNTY Wake V ��
PHONE NO. [phone] Mono
ADD TO LISTSERVE? DYES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA [-]Trout ®Other mal
Outfall No.
Date Sample
Collected
� mo/dd/yr OR
NO FLOW)
pH
{Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 SamplingZ
-
-
6-9
100 '
-
-
-
-
001
5/31/2016
Y
20
REC
,.
CENTRE
E FILFq
DWR S
.CTiON
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
TSS benchmark values are 100 mg/l, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(Standard
Units)
TPH using method
1654A5GT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Sampling2
6-9
15
100 ,
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coov of this DMR fincludine all "No Flow" & "No Discharge" renortsl within 30 days of receipt of sample for at end of monitoring period
in case of "No Flow"1 to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFIC4TION 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."
�—jQ /w, 6/7/2016
(Signature of Permittee) 61 Date]
Permit Date:7/1/2011-60/30/2015
rp
Last Revised 7/13/11
Page 3 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: February Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? DYES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other,
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)
pH
[Standard
Units
TS5
(mg/L)
Event
Duration
(minutes]
Total
4
Rainfall
{in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
Z
2 Sampling
-
-
6-9
100 '
-
-
-
-
001
No Discharge
Y
17
MA
C.PNTRP
L FILES
DWR Sj-'_CTION
' If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
TSS benchmark values are 100 mg/l, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/I.
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfa[I
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
n
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Z
Sampling
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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.
am aware that there are si nificant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
�a> x, �G�i 3/31/2016
(Signature of Permittee) 61 (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: January Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: []SA ❑HQW ❑PNA
❑Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)'
pH
[standard
Units)
TSS
(mg/L)
Duration
Du
(minutes)
Total
Rainfall 4
(in)
In Tier 2
Monthly
Monitoring?
(V/n)
# of Months in Tier
2 Samplingz
-
6-9
1002'
-
-
-
001
No Discharge
Y
16
�NTRA i- L
v
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
A For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)'
PH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/!)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
in Tier Z
Monthly
Monitoring?
(y/n)
## of Months
in Tier Z
SamplingZ
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coot/ of this DMR (includine all "No Flow" & "No Discharge" reoorts) within 30 days of receipt of sample for at end of monitoring period
in case of "No Flow"} 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 Permittee)
Permit Date: 7/1/2011-60/30/2015
2 /2 9/2016
(Date)
Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG14035O
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375�
Lab #
OPTIONAL INFO: March Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2016
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? [—]YES ®NO EMAIL:
DISCHARGING TO CLASS: []SA ❑HQW ❑PNA ❑Trout
®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FL0W)1
pH
(Standard
Units)
TS5
(mg/L)
Event
Duration
{minutes)
Total
a
Rainfall
{in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Sampling2
-
-
6-92
1002.3
-
-
-
-
001
No Discharge
Y
18
10
CENT
JR SECTI
N
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/l, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/l.
For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 1 of 2

111�o.
Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)'
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfall 4
(in)
New Motor ail
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
torn
(V/n)
# of Months
in Tier 2
Z
Sampling
6-9
is
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 dais of receipt of sample for at end of monitoring period
in case of "No Flow") 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 Permittee)
Permit Date:7/1/2011-60/30/2015
4/4/2016
(Date)
Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: December Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: [:]SA ❑HQW ❑PNA ❑Trout ®Other,
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
1
NO FLOW]
pH
(Standard
Units}
TSS
m
($/L�
Event
Duration
(minutes)
Total 4
Rainfall
(in)
In Tier 2
Monthly
7
Monitoring.
(y/n)
# of Months in Tier
2
2 Sampling
-
-
6-9
100 ,
-
-
-
-
001
No discharge
Y
11
MAIFF5T
M
DWR
SECTION
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I,
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(Standard
Units)
TPH using method
.1664A 5GT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfalla
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2 Monthly
Monitoring?
[Y/n)
# of Months
in Tier 2
z
Sampling
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DM R (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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."
JG4w., L
(Signature of Permittee)
Permit Date: 7/1/2011-60/30/2015
1/31/2016
( Date)
Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2015
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant SAMPLING PERIOD: ® July -December ❑ January -June
PERSON COLLECTING SAMPLES Kevin Kelt COUNTY Wake
CERTIFIED LABORATORY ESC Lab # ENV 375 PHONE NO. [phone]
Lab # ADD TO LISTSERVE? []YES ®NO EMAIL:
OPTIONAL INFO: October Monitoring Event DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Part A: Stormwater Monitoring Requirements
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)t
pH
(standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
In Tier 2
Monthly
Monitoring)
(y/n)
# of Months in Tier
2 SamplingZ
-
-
6-9
100 '-
001
No discharge
C
W
Y
11
JAN
4 4 2016
r1,r.�ra
t" W N
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
° For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-50/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)l
pH
{Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
,
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
{Y/n)
# of Months
in Tier 2
2
Sampling
6-9 2 115
100 ,
-
-
-
-
-
aP-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copv of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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.
am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
e.
(Signature of Permittee)
12/28/2015
(Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

$0,
STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: April Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL.:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)i
PH
[Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total a
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Sampling2
-
-
6-92
1002,3
_
-
-
001
No Discharge
Y
7
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
a TSS benchmark values are 100 mg/l, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/I.
For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)l
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfall a
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
fi of Months
in Tier 2
Sampling'
6-9'
15'
10o2,3
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coov of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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.
am aware tha.tiiere are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
6/8/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375Y
Lab #
OPTIONAL INFO: September Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout
®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)'
PH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(Y/n)
# of Months in z Tier
2 Sampling
-
-
6-92
1002,3
-
-
-
-
001
9/25/15
11.64
86.0
0.875
Y
10
/_U,...
CENT
RAL FILE
UW--R
SECTION
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
r—
rT1
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
w
'
Outfall
No.
Date Sample
Collected
{mo/dd/yr)'
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfalla
(in)
New Motor oil
Usage
(gal/month)
In Tier 2 Monthly
Monitorin
(Y/n) g'
# of Months
in Tier 2
SamplingZ
6-92
152
1002,3
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES []NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Orieinal and one coov of this DMR (includine all "No Flow" & "No Discharee" reoortsl within 30 days of receipt of sample (or at end of monitorine Deriod
in case of "No Flow") 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
am aware that therepre-signifint enal s for submitting false information, including the possibility of fines and imprisonment for knowing violations."
10/30/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

• '. STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: —Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: July Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: [:]SA ❑HQW ❑PNA []Trout ®Other
Outfall No.
Date Sample Collected
(mo/dd/yr OR
NO FLOW)'
PH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
,
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Sampling2
-
-
6-92
1002,3
-
_
-
001
7/23/15
11.87
77.3
1.375"
Y
10
r► s
NOV 10 2015
CENT. FILES
-AL
DWR SECTION
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
2 If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

}
Part B:_Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month— averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yrJl
PH
(Standard
Units)
TPH using method
1664A SGT--HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring? Mo
(y/n)
# of Months
in Tier 2
2
Sampling
6-9
15
1002,
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge reports)_within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUSTSIGN 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.
am aware that thep-a-,e significant pe�lties jj-1forsubmitting false information, including the possibility of fines and imprisonment for knowing violations."
E. `lt""`rJ'E"", 10/30/2015
(Signature of Permittee) jDate)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

r
PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT No. NCC3140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bastian
CERTIFIED LABORATORY:_ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitorine Reauirements
SAMPLE COLLECTION YEAR: 2015
SAMPLE QUARTER: ®Jul -Sept ❑Oct -Dec ❑Jan -March
COUNTY: Wake
PHONE NO. (_919 _) 562-1909
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
❑April -June"
e
r
DISCHARGING TO CLASS: [:]SA❑HQW ❑PNA ❑Trout ®Other C'"
OPTIONAL INFO: CTM
Outfall No.
Date Sample
1
Collected
(mm/dd/yr)
Type of Wastewater
z
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
method 1664A
SGT-HEMG
(mg/L)
Discharge
Duration
(minutes)
Total Flow
{gallons/day} 7
-
-
6-93.4
303,5
53
(15)6
-
-
001
NO DISCHARGE
ED
�gy IV ulzI
r
DWR
SECT
ON
TPH usingAdc
1 If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge' here. Please make sure to mark the sample quarter above.
Z Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date:7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instۥad is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 0213 .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW", "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FL_O_W_") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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."
C . U�,
(Signature of Permittee)
Permit Date: 7/1/2010-06/30/2015
10/30/2015
(Date)
Last Revised 07/13/11
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring ReportRECEIVED
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO, NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bostian
CERTIFIED LABORATORY:_ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitoring Requirements
AUG 0 7 2015
CENTRAL FILES
SAMPLE COLLECTION YEAR: 2015 DWR SECTION
SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec ❑Jan -March
COUNTY: Wake
PHONE NO. (_919 _)562-1909
ADD TO LISTSERVE? DYES ®NO EMAIL:
®April -June
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other +*1
OPTIONAL INFO:
Outfall No.
Date Sample
Collected'
(mm/dd/yr)
Type of Wastewater
(VE, RM, MD)2
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH using
method 1664A
SGT-HEM6
(mg/L)
Discharge
Duration
(minutes)
Total Flow
(gallons/day)'
Q
-
-
-
6-93.4
303,5
53
(15)6
-
-
001
NO DISCHARGE
f wastewater systems have not discharged in this ouarter— report "No Flow' or "No Discharge" here. Please make sure to mark the sample auarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2

6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
' Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a 5ummer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
F..;?'
46rjua
i' 'Division of Water Quality
Attn: DWQ Central Files
r1617 Mail Service Center
;,Raleigh, North Carolina 27699-1617
[phone]
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."
S c. GO,4A,
(Signature of Permittee)
Permit Date:7/1/2010-06/30/2015
7/31/2015
(Date)
Last Revised 07/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375A
Lab #
OPTIONAL INFO: June Monitoring Event
Part A: Stormwater Monitoring Requirements
RECEIVED
SAMPLE COLLECTION YEAR: 2015 AUG 0 7 2015
SAMPLING PERIOD: ❑ July -December ® January -June ENT
COUNTY Wake CEN* L FILES
PHONE NO. [phone] SECTIONDWR
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HCJW ❑PNA [—]Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)'
pH
(Standard
Units}
TSS
(mg/L)
Event
Duration
(minutes}
Total
Rainfall 4
(in}
In Tier 2
Monthly
Monitoring?
(V/n)
# of Months in Tier
2 Sampling2
-
-
6-9z
1002,3
-
-
-
-
001
No Discharge
Y
9
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range,
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/l.
^ For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
CMMJ
C7
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
PH
(Standard
Units)
TPH using method
1664A SGT NEM
{mg/L}
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfall a
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
2
Sampling
6.92
152
1002,3
-
-
-
-
-
r
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coov of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample for at end of monitoring period
in case of "No Flow") 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.
am aware th"re ar significa penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
7/31/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES NA
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: January Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: []SA ❑HQW
❑PNA ❑Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
Rainfal14
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
Z
2 Sampling
-
-
6-4
100 ,
-
-
-
-
001
No Discharge
y
4
C
EI
CEN
RAL FILES
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/l.
° For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month -- averaged over a calendar year.
'
Outfall
No.
Date Sample
Collected
(mo/dd/yr)1
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
h of Months
in Tier 2
z
Sampling
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ® NO ❑
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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 submittyig false information, including the possibility of fines and imprisonment for knowing violations."
(Signature of Permittee)
3/31/2015
(Date)
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 2 of 2

STORMIMATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375�
Lab #
OPTIONAL INFO: February Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? DYES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout
®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total
Rainfall 4
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Sampling'
-
-
6-9
100 ,
-
-
-
-
001
No Discharge
Y
5
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make Sure to mark the sample period above.
Z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/I.
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part 8: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected 1
(mo/dd/yr)
pH
(Standard
units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfalla
(in)
New Motor Oil
usage
(gal/month)
In Tier 2 Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Samplin82
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") to:
Division of Water Quality
Attn: DWQCentral Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTER:
"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.
am aware that there are significant alties for submittin false information, including the possibility of fines and imprisonment for knowing violations."
3/31/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: March Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
1
NO FLOW]
PH
{Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total 4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
Z
2 Sampling
-
-
6-9
100 '
-
-
-
-
001
No Discharge
Y
6
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
"For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
'
Outfall
No.
Date Sample
Collected 1
(mo/dd/yr)
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Samplingz
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring aeriod
in case of "No Flow") 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.
am aware that there are sign i rant penalties for ubmitting false information, including the possibility of fines and imprisonment for knowing violations."
S1 3/31/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350 SAMPLE COLLECTION YEAR: 2015
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant SAMPLE QUARTER: ❑Jul -Sept ®Oct -Dec ❑Jan -March []April -June
PERSON COLLECTING SAMPLES: Susan Bostian COUNTY: Wake
CERTIFIED LABORATORY:_ESC Lab # ENV375 PHONE NO. (_919 _)562-1909
Lab # ADD TO LISTSERVE? ❑YES ®NO EMAIL:
LIMIT VIOLATIONS? YES ❑ NO ❑ DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA []Trout ®Other
OPTIONAL INFO:
Part A: Wastewater Monitoring Requirements
Outfall No.
Date Sample
1
Collected
(mm/dd/yr)
Type of Wastewater
(VE, RM, MD)'
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH usingDischarge
method 1664A
SGT-HEM'
(mg/L)
(minutes)
Total Flow
,
(gallons/day j
-
-
-
6-93,4
303.5
53
(15)6
-
-
001
NO DISCHARGE
K T'
J I
i� A I-r
S A t F:
iLEe
I If wastewater systems have not discharged in this quarter— report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 T5S limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2
10"
Wm+
romo
`7
050
!1114

6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
r Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 70,10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW. "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing
violations."
�
A C . G,,k
(Signature of Permittee)
Permit Hate: 7/1/2010-06/30/2015
12/28/201S
(Date)
Last Revised 07/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Kevin Kelt
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: July Monitoring Event
Part A: Stormwater Monitoring Requirements
RECEIVED
SAMPLE COLLECTION YEAR: 2015 SEP 17 2015
SAMPLING PERIOD: ® July -December ❑ January-JMITRAL FILES
COUNTY Wake DWR SECTION
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Outfall No.
Date Sample
Collected mo/dd/yr OR
[
NO FLOW)'
pH
(standard
Units}
TS5
(mg/L)
Event
Duration
{minutes)
Total a
Rainfall
{in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
z
2 Sampling
-
-
6-9
100 ,
-
-
-
-
001
7/23/15
11.87
77.3
1.375"
Y
10
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
TSS benchmark values are 100 mg/l, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/i.
° For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/l/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B:. VehiclZ Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
date Sample
Collected
[mo/dd/yr)1
PH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
{mg/L}
Event
Duration
(minutes)
Total
Rainfalla
(in)
New Motor Oil
Usage
{gal/month}
2 Tier
In InTier#
Monthly
Monitoring?
{y/n)
of Months
in Tier 2
z
Sampling
6-9
15
100 '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Orieinal and one coov of this DMR (includine all "No Flow" & "No Dischame" reports] within 30 days of receipt of sample for at end of monitoriniz period
in case of "No Flow") 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.
am awarPAat there are signjfi�can�t} penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
CA""' t� 9/9/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

ISTORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: August Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? OYES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total 4
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(Y/n)
# of Months in Tier
2 Sampling'
-
-
6-9 2100
,
-
-
001
No Discharge
Y
11
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
5M
Z
V)
m r,
n
Or
zM
co
cn
rn
V
N
O
X
M
01
M
0
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)l
PH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
If of Months
in Tier 2
2
Sampling
6-9
15 2
10D '
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one copy of this DMR (including all "No Flow" & "No Discharge" reports] within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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
am aware thatphere ares gnifica�penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
,� 9/9/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

f
STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina -Wake Forest Plant_
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: May Monitoring Event
Part A: Stormwater Monitoriniz Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: ❑ July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA
❑Trout ®Other,
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
PH
(Standard
Units)
TS5
(mg/L)
Event
Duration
(minutes)
Total
a
Rainfall
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Sampling'
-
-
6-92
1002.3
-
-
001
No Discharge
Y
8
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfail here. Please make sure to mark the sample period above.
' If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/I.
For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 1 of 2

Part B: Vehicie Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
( Co/ected
i
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfall a
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
# of Months
in Tier 2
Sampling2
6-91
152
1001"
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANYONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coot/ of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") 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.
am aware that there�signifipnt enal�ie1-sforsubmitting false information, including the possibility of fines and imprisonment for knowing violations."
6/8/2015
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

A*A
J
NCDENR
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form, please visit: http: //portal.ncdenr.org/web/lr/nodes-stormwater/
Permit No.: N/C/_/_/_/_/_/_/_/ or Certificate of Coverage No.:/4_/ a%'3 % 5'/. 0
Facility Name: Thomas Concrete of Carolina -Wake Forest Plant
County: Wake Phone No. [phone]
Inspector: Kevin Kelt
Date of Inspection: 07/23115
Time of Inspection: 1430
Total Event Precipitation (inches): 1.375"
Was this a "Representative Storm Event" or "Measureable Storm Event" as defined by the permit?
(See information below.)
caw- ■=
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, I certify that this report is accurate and complete to the best of my knowledge:
C,
(Signature of Permittee or Designee)
Page 1 of 2
SWU-242, Last modified 7/31/2013

1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) Pipe into collection trench
Receiving Stream: Unnamed tributary to Neuse River
Describe the industrial activities that occur within the outfall drainage area: Bulk storage
of raw materials, vehicle transport. wastewater treatment.
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 distinct odor
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is
clear and S 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:
1 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 No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10, Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 11.87
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

T PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bostian
CERTIFIED LABORATORY: ESC
Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES F] NO ❑
Part A: Wastewater Monitoring Requirements
L
co
p
r
SAMPLE COLLECTION YEAR: 2015
SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec ®Jan -March
COUNTY: Wake
PHONE NO. (_919 _) 562-1909
ADD TO LISTSERVE? []YES ®NO EMAIL:
❑April -June
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
OPTIONAL INFO:
Outfall No.
Date Sample
Collected
(mm/dd/yr}
Type of Wastewater
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH using
method 1664A
SGT Fi L
(mg/L)
Discharge
Duration
{minutes}
Total Flow
{gallons/day}
-
-
-
6-93.4
303.5
53
(15)f,
-
-
001
NO DISCHARGE
1 If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
Z Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 if an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date: 7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but irntead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 0213 .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW". "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW"] TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing
violations." A
(Signature of Permittee)
Permit Date:7/1/2010-06/30/2015
3/31/2015
(Date)
Last Revised 07/13/11
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bostian
CERTIFIED LABORATORY: ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitorine Reauirements
SAMPLE COLLECTION YEAR: 2014
SAMPLE QUARTER: ❑Jul -Sept ®Oct -Dec ❑Jan -March
COUNTY: Wake
PHONE NO. (_919 _)562-1909
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA ❑Trout ❑Other
OPTIONAL INFO:
Outfall No.
Date Sample
1
Collected
(mm/dd/yr)
Type of Wastewater
z
(VE, RM, MD}
pH
(standard}
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH usingDischarge
method 1664A
6
SGT NE)
(mg/L
Duration
(minutes)
Total Flow
7
(gallons/day)
-
-
6-93,4
303.5
53
(15)6
-
-
001
NO DISCHARGE
2015
GENT
Itts
2 If wastewater systems have not discharged in this quarter— report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HOW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2
:11110-
❑April-June
C.2
W
.j
ww+
LAM

e Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
7 Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
{ . ,obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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 Permittee)
Permit Date: 7/1/2010-OG/30/2015
12/29/2014
(Date)
Last Revised 07/13/11
Page 2 of 2

W
STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL. PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE; NO. NCG140350
FACILITY NAME: Thomas Concrete of Carolina -Wake Forest
Plant_
PERSON COLLECTING SAMPLES Andrew Rodak
CERTIFIED LABORATORY ESC Lab # ENV 375�
Lab #
OPTIONAL INFO:
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2014
SAMPLING PERIOD: ® July -December ❑ January June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? [-]YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA ❑Trout ❑Other,
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)1
pH
(Standard
Units)
T55
(mg/t)
Event
Duration
(minutes)
Total
Rainfall'
(in)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months in Tier
2 Sampling
-
6-9
100
-
-
-
001
09/24/14
9.42
280
480
1.82
N
1 If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
Z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
3 TSS benchmark values are 100 mg/I, except when discharging to ORW, HQW, Trout, and PNA waters where they are 50 mg/I.
4 For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 1 of 2

..1
I
Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oil/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr]f
pH
(Standard
Units)
TPH using method
1664A SGT-HEM
(mg/L)
Total Suspended
Solids
(rng/L)
Event
Duration
(minutes)
Total
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
# of Months
in Tier 2
Sampling
6-9
15
1002.3-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Original and one cony of this DMR (including all "No Flow" & "No Discharge" reports) within 30 days of receipt of sample (or at end of monitoring period
in case of "No Flow") to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
YOU 41UST SIGN THIS CERTIFIC4TION 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.
am�y�tdre that there a significant pe Ities for submitting false information, including the possibility of fines and imprisonment for knowing violations."
9/-
(Signature of Permittee)' ( te)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
Page 2 of 2

1�
PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bostlan
CERTIFIED LABORATORY:_ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2014
SAMPLE QUARTER: ®Jul -Sept ❑Oct -Dec ❑Jan -March
COUNTY: Wake
PHONE NO. (,_- 919 --_-_)562-1909
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA []Trout
OPTIONAL INFO:
❑April -June
❑Other
Outfall No.
Date Sample
Collected'
(mm/dd/yr)
Type of Wastewater
(VE, RM, MD)
pH
(standard)
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH using
method 1664A
SGT HEIW
(mg/L)
Discharge
Duration
(minutes)
Total Flow
(gallons/day)'
-
-
-
6-91a
30"'
53
(15)s
-
-
001
09/24/14
VE, RM
9.42
280
0.40
180
9,800 gpd
' If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
31f an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to contlnue monitoring,
pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
S T55 limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 1 of 2

e Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
7 Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 028.0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY_ (INCLUDING ALL "NO FLOW", -NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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 quallfied 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 submltting false Information, Including the possibility of fines and imprisonment for knowing
violations." A /I
(Signature of Permittee)
Permit Date: 7/1/2010-06/30/2015
9/30/2014
(Date)
Last Revised 07/13/11
Page 2 of 2

NCDEN R OCT 0 3 204
Stormwater Discharge Outfall (SDO) CENrRk fil
Qualitative Monitoring Report DWR SECT/OtV
Forguidance on filling out this form, please visit htWV-/=rtal.ncdenr.org/web11r/nodes-storm water(
Permit No.: �1/�/_/_/�/_/_/_/_ _/ or Certificate of Coverage No.: 13 /�./.Q
Facility Name: Thomas -Concrete of Carolina -Wake Forest Plant
County: Wake Phone No.562-1202
Inspector: Andrew Rodai�
Date of Inspection: 09124114
Time of Inspection: 14 O _
Total Event Precipitation (inches): _ 1.82
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, I certify that this r Tort is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
Page 1 of 2

1. Outfall Description:
Outfall No. 01 Structure (pipe, ditch, etc.) P1pe,into collection trench
Receiving Stream: Unnamed tributary to Neuse River
Describe the industrial activities that occur within the outfall drainage area: Bulk storage
of raw matefials. Vehicle trsno , ;,_,yvaste, ter eatment.
2. Color: Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors: Greyish brown, medium tint
3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil,
weak chlorine odor, etc.): _ No -distinct 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
S. 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:
1 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 2 3 4 5
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe pH: 9,42
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

PROCESS WASTEWATER -- Quarterly Discharge Monitoring Report
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Susan Bostian
CERTIFIED LABORATORY: ESC Lab # ENV37S
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitoring~ Requirements
SAMPLE COLLECTION YEAR: 2014
SAMPLE QUARTER: [_]Jul -Sept ❑Oct -Dec ❑Jan -March
COUNTY: Wake
PHONE NO. (_919 _) 562-1909
ADD TO LISTSERVE? []YES ®NO EMAIL:
®April -June
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA ❑Trout ❑Other
OPTIONAL INFO:
Outfall No.
Date Sample
Collected'
(mm/dd/yr)
Type of Wastewater
z
(VE, RM, MD}
pH
{standard}
Total Suspended
Solids
(mg/L)
Settleable
Solids
(mL/L)
TPH using
method IGG4A
SGT-WE)
(mg/L
Discharge
Duration
(minutes)
Total Flow
7
(gallons/day}
-
-
-
6-93,4
- 303'5
53
(15)s
-
-
001
NO DISCHARGE
7tj
L FILES
DWFr
SECTION
1 If wastewater systems have not discharged in this quarter— report "No Flow" or "No Discharge" here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
3 if an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring for that parameter for six months, unless DWQ RO staff
notifies you to continue monitoring,
4 pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
5 TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
Permit Date:7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 028 .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. If the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ, and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING_ ALL "NO FLOW", "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone]
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 tlopre are significant penalties for subtpitting false information, including the possibility of fines and imprisonment for knowing
(Signature of Permittee)
Permit Date:7/1/2010-06/30/2015
9/15/2014
(Date)
Last Revised 07/13/11
Page 2 of 2

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: Thomas Concrete of Carolina -Wake Forest
Plant_
PERSON COLLECTING SAMPLES Susan Bostian
CERTIFIED LABORATORY ESC Lab # ENV 375�
Lab #
OPTIONAL INFO:
Part A: 5tormwater Monitorins Requirements
SAMPLE COLLECTION YEAR: 2014
SAMPLING PERIOD: [] July -December ® January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVEi' ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW []PNA []Trout ❑Other
Outfall No.
Date Sample
Collected
(mo/dd/yr OR
NO FLOW)'
PH
(Standard
Units)
TSS
(mg/L)
Event
Duration
(minutes)
Total /
Rainfall
(in)
In Tler 2
Monthly
Monitoring?
(y/n)
# of Months In Tier
2 Sampling'
-
-
6-92
1002_1
-
-
-
-
001
04/07/14
10.68
65
480
1.42
N
MAY
C:FNTI
DVS
' If "NO FLOW" or "NO DISCHARGE, Enter "NO FLOW" or "NO DISCHARGE" for each outfall here. Please make sure to mark the sample period above.
Z If a value is in excess of the benchmark, or outside the benchmark range (for pH), you must implement the Tier 1 or Tier 2 responses in the General Permit. Tier 2
Monthly sampling shall be done until 3 consecutive samples are below the benchmark or within the benchmark range.
a TSS benchmark values are 100 mg/I, except when discharging to ORW, HOW, Trout, and PNA waters where they are 50 mg/l.
For each sampled measurable storm event the total precipitation must be recorded using data from an on -site rain gauge.
Permit Date: 7/1/2011-60/30/2015
EIVED
0 2 Z014
'AL FILES
TBOG
Last Revised 7/13/11
Page 1 of 2

Part B: Vehicle Maintenance Activity Monitoring Requirements for facilities using > 55 gal of new motor oll/month — averaged over a calendar year.
Outfall
No.
Date Sample
Collected
(mo/dd/yr)l
PH
(Standard
Units)
TPH using method
1664ASGT-NEM
(mg/L)
Total Suspended
Solids
(mg/L)
Event
Duration
(minutes)
Total
Rainfall
(in)
New Motor Oil
Usage
(gal/month)
In Tier 2
Monthly
Monitoring?
(y/n)
A of Months
in Tier 2
Sampling2
6-92
152
1002.3
-
-
-
-
-
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Original and one coDv of this DMR iincludine all "No Flow" & "No Discharee" reports) within 30 days of receipt of sample for at end of monitoring Deriod
in case of "No Flow") to:
Division of Energy, Mineral and Land Resources
Attn: DWQ Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-A 612
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,
gm.aerare that ther are significant enalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
o�-2 01�A
(Signature of Permittee) (Date)
Permit Date: 7/1/2011-60/30/2015
Last Revised 7/13/11
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140350
FACILITY NAME: _Thomas Concrete of Carolina- Wake Forest Plant
PERSON COLLECTING SAMPLES: Andrew Rodak
CERTIFIED LABORATORY:_ESC Lab # ENV375
Lab #
LIMIT VIOLATIONS? YES ❑ NO ❑
Part A: Wastewater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2014
SAMPLE QUARTER: ❑Jul -Sept ❑Oct -Dec ®Jain -March
COUNTY: Wake
PHONE NO. (_919 _) 562-1909
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA ❑Trout
OPTIONAL INFO:
❑April -June
❑Other,
Outfall No.
Date Sample
Collected =
(mm/dd/yr)
Type of Wastewater
(VE, RM, MD)2
pH
(standard)
Total Suspended
SvHds
(mg/L)
Settleable
Solids
(mL/L)
TPH using
method 1664A
SGT HEIW
(mg/L)
Discharge
Duration
(minutes)
Total Flow
(gallons/day)'
_
6_93.4
3o3.5
S3
(15)6
-
-
001
NO DISCHARGE
Click here to
enter text.
Click
mere to
enter
text.
MAY I,
M
i_Ctrll.,t�3
1 If wastewater systems have not discharged in this quarter — report "No Flow" or "No Discharge' here. Please make sure to mark the sample quarter above.
2 Report the abbreviation for the type of Authorized Wastewater Discharges here: Vehicle and Equipment Cleaning (VE), Raw Material Stockpiles (RM), Mixing Drum
Cleanout (MD). Report more than one type if the waste -stream is commingled.
Permit Date: 7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

'If an effluent limit is exceeded twice in a row, the permittee is required to institute monthly monitoring forth at parameter for six months, unless DWQ RO staff
notifies you to continue monitoring.
pH limits are 6-9 S.U. for wastewater discharges to freshwaters, and 6.8-8.5 S.U. for discharges to saltwaters.
s TSS limits are 20 mg/L for wastewater discharges to HQW waters, 10 mg/L for Trout and PNA waters, and 30 mg/L for all other water classifications.
6 Process wastewater discharges shall only be monitored for TPH when commingled with stormwater discharges from VMA areas. TPH does not have a limit for wastewater,
but instead is subject to benchmarks and provisions of Part IV, Section A, including the Tiered Response Action.
Flow rate can be measured continuously or calculated. Flow limits for wastewater discharges to HQW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HQW waters shall obtain a Summer 7Q10 flow and report this information to DWQ. if the permittee cannot
obtain a Summer 7Q10 flow for the receiving waters at the discharge location, the permittee shall notify DWQ and the DWQ Regional Office may require an annual flow
report on a case -by -case basis.
MAIL ORIGINAL AND ONE COPY OF THIS ANNUAL SUMMARY (INCLUDING ALL "NO FLOW", "NO DISCHARGE") WITHIN 30 DAYS OF RECEIPT OF SAMPLE (OR
AT END OF MONITORING PERIOD IN CASE OF "NO FLOW") TO:
Division of Energy, Mineral and Land Resources
Attn: DWQ Central Files
1612 Mail Service Center
Raleigh, North Carolina 27699-1612
[phone]
YOU MUSTSIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"1 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."
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 2 of 2

(Signature of Permittee)
c-/- 2 9- 2o�Y
(Date)
Permit Date; 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 3 of 2