NCG140266_MONITORING INFO_20190826

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
w L& M u au
DOC TYPE.
❑ HISTORICAL FILE
l MONITORING REPORTS
DOC DATE
❑ a v J
YYYYMMDD

1:>DUNCKLEE
& DUNHAM
August 21, 2019
ENVIRONMENTAL GL'OLOGISI'S & ENGINEERS
511 KEISLER DRIVE: - SUITE 102
CARY, NORTH CAROLINA 27518
OFFICE: [phone]
W W W.DUNCKLEEDUNHAM.COM
NCDept ofEnvironmental Quality)
North Carolina Division of Energy, Mineral and Land Resources AUG ? 6 2019
Land Quality Section
Raleigh Regional Office
Raleigh Regional Of 1C8
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier II Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater Tier 11
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of July. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
Duncklee & Dunham, P.C.
y
Staff ngineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, July
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, July
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, July
MAILING ADDRESS - POST' OFFICE Box 639 - CARY, Nown I CAROLINA 27512
NORTH CAROLINA BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS LICENSE C-3559
NOR'I'II CAROLINA BOARD FOR LICENSING OFGFOLOGIS'I'S LICENSE C-261
NC DEQ REGIs'I'ERED I-NVIRON411SNT,U-CONSULTAN7NU,+ISER 00061

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT D - RMWAT _R .
SUBMIT TO REGIONAL OFFICE*
AUU Z 5 JU19
General Permit No. NCG140000
'Use this form if any stonnwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITOR R&Ohmpggpillcc
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2019
County: Wake For Monthly Monitoring: Month: July
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine I
Stormwater Monitoring Requirements
Outfall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/I
(VMA)
Ire IlraGro
New Motor Oil
Usage (gal/mo.)
raPpmenro
Z
1 mo_/dd/yr
or. NO�FLOW"fir'
inches-
*'
YIN
YIN
100
50(0RW.HpW,Tr,PNA)
6.0-9.0
15
>55 pal/mo. rverape
eRulroa T55 and Nanpolar
06G monlWrinp
001
7/23/19
0.72
N
N
SEMI-ANNUAL
N/A
N/A
002
7/23/l9
0.72
Y
Y
29.8
11.46
<5.68
>55 gal/mo
003
7/23/19
0.72
Y
N
121
11.86
N/A
N/A
I
Permit Date 811/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

Certificate of Coverage No. NCG140266
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
knowing violatjors." (Required by 40 CFR§122.221
Mail Benchmark—Exeedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
ASHEVILLE REGIONAL OFFICE I FAYETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE
2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301
Swannanoa, NC 28778 Systel Building Suite 714 Mooresville, NC 28115
[phone] Fayetteville, NC 28301-5043 [phone]
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
943 Washington Square Mall
Washington, NC 27889
[phone]
CENTRAL OFFICE
Questions for The Central Office
Stormwater Permitting Program?
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
P
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

DUNCKLEE
& DUNHAM
September 12, 2019
ENVIRONMENTAL GEOLOGISTS & ENGINEERS
511 KEISLER DRIVE - SUITE 102
CARY, NORTIICAROIANA 27518
OFFICE: [phone]
W W W.DUNCKLEEDUNI IAM.COM
North Carolina Division of Energy, Mineral and Land Resources
Land Quality Section
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier II Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater Tier 11
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of August. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
Duncklee & Dunham, P.C.
Lily Walker
Staff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
NC Dept of Environmental Quality
SFP 17 2019
Raleigh Regional Office
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, August
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, August
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, August
MAILING ADDRESS — POST OrrICE Box 639 — CARY. NoR ni CAROLINA 27512
NORTH CAROLINA BOAR1) OF EXAMINERS FOR ENGINIH7RS AND SURVEYORS LICF.NSI: C-3>59
NORTII C\ROLINA BOARD FOR LIC ENS INC. OF CEO LOG IS'rs LICEN SE C-261
NC DEQ RFG is I. R ED EN VI RONNI ENTAL CONSU I:rANT NUMBER 00061

I) RIO 1014

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) - STORMWATER
SUBMIT TO REGIONAL OFFICE.* �I
General Permit No. NCG140000
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2019
County: Wake For Monthly Monitoring: Month: August
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham, Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitoring Reauirements
Does this SDO
Total
Non-polar'O&G
include Vehicle
Suspended
pH,
(EPA Method 1664
New Motor Oil
Outfall
Date Sample
Total
Is this SDO in
Maintenance
Solids (TSS),
SU
(SGT-HEM)), mg/1
Usage (gal/mo.)
No.
Collected
Rainfall
Tier 2?
Activities (VMA)?
mg/I
(VMA)
I{applicoEH
tte 1caGla
Z '?
Rmo/dd/yr
r
y�
MXwy"
inches-
Y/N
Y/N
100
6A-9.0
15
>54 paNmo. overnge
wv�srss,m Noovmar
sr=£
FLOW
TrPNA)
WORK HOW, Tr,
oacmonitaftq
��.
or.�NO
001
8/30/19
--
N
N
SEMI-ANNUAL
N/A
N/A
002
8/30/19
---
Y
Y
NO DISCHARGE
003
8/30/19
---
Y
N
NO DISCHARGE
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

CERTIFICATION Certificate of Coverage No. NCG140266.0
"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
[Required by 40 CFR §122.22]
Signature �—In N&J�f4) Date q -+C)" IR
Mail Benchmark Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
FAYETTEVILLE REGIONAL OFFICE I MOM SVILLE REGIONAL OFFICI
225 Green Street 610 East Center Avenue/Suite 301
Systel Building Suite 714 Mooresville, NC 28115
Fayetteville, NC 28301-5043 [phone]
[phone]
WASHINGTON REGIONAL OFFICE I WILMINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
Questions for The Central Office
Stormwater Permitting Program?
[phone]
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 - 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

DUNCKLEE
& DUNHAM
September 17, 2019
ENVIRONMENTAL GEOLOGISTS & ENGINEERS
511 KEISLER DRIVE - SUITE H12
CARY, NORTH CAROLINA 27518
OFFICE: (919)85N-9898
W W W.DUNCKLEEDUNHAM.COM
NC Dept of Environmental Quality
North Carolina Division of Energy, Mineral and Land Resources SEP 19 2019
Land Quality Section
Raleigh Regional Office Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier II Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater Tier 11
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of September. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
& Dunham, P.C.
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, September
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, September
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, September
MAILING ADDRESS - POSTOFFICE- Box 639 - CARY, NORTH CAROLINA 27512
NOR III CAROLINA BOARDOF EXAMINERS FOR ENGINEERS AND SURVEYOR$ LICENM7 C-3559
NORTH CAROLINA BOARD FOR LICENSING OF GEOLOGISTS LICENSE C-201
NC DEQ REGISTERLD ENVIRONMENTAL. CONSULTANT NUMBER 00061

I
i13
I , . ; 11, . .

13ENt;HMAKK EActEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER
SUBMIT TOREGIONAL OFFICE*
General Permit No. NCG140000
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2019
County: Wake For Monthly Monitoring: Month: September
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at anyone SW discharge outfall (SDO)? Yes® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Outfall
No.
Date Sample
Collected
Total
Rainfall
Is this 2? in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total "'
Suspended
Solids (TSS),
mg/1
"' .
pH,
SU
Non-pblar;0&G .
(EPA Method 1664
(SGT-HEM));•mg/I .
(VMA) .
- IPo (caale
New:Motor Oil
Usage (gallino.)
raPproaero,
K
t mo/dd/yr�
or "NO FLOW"
inches
YIN
YIN
100
50(GRW,HOW. Tr,PM)
6.0-9.0
15
a55 gaVm .average
e0u4as T55 aM Nun poa
OQGnnNtong
001
NO FLOW
0.59
N
N
SEMI-ANNUAL
N/A
N/A
002
09/05/19
0.59
Y
Y
218
10.74
<5.68
>55 gal/mo
003
09/05/19
0.59
Y
N
114
9.42
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

Certificate of Coverage No. NCG14026B
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
Mail
ASHEVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
JGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
TON-SALEM REGIONAL
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
Date114-19
Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
(ETTEVILLE REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
i,SHINGTON.REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
Questions for The Central Office
Stormwater Permitting Program?
[phone]
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
LMINGTON REGIONAL -OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

DT 7T7�7TT �L'E ENVIRONMENTAL GEOLOGISTS & ENGINEERS
V T V n t 511 KEISLER DRIVE - SUITE 102
& DUNHAM CARY, NORTH CAR01.1NA 27518
OFFICE:I
r> I WWW,DUNCKLLiDUNHIAM,COM
7.
NC Dept of Environmental Quality
May 14, 2019 MAY 16 2019
North Carolina Division of Energy, Mineral and Land Resources Raleigh Regional Office
Land Quality Section
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier Ili Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater Tier II
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of April. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
Duncklee & Dunham, P.C.
LrffEn
Seer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, April
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, April
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, April
MAILING ADDRESS - POS"r 01�1'ICE Box 639 - CARY. NOR"I'II CAROLINA 27512
NOR "III CAROLINA BOARD OF GAAAIINERS FOR ENGINEERS AND SURVE)'ORS 1ACENSE C-3559
NORTH CAROLINA BOARD FOR LICENSING OP GEOLOCIS'1'S LICENSE C-261
NC DEQ REGISTI!RIiD ENVIRONMENT Al. CONSUL I ANT NUMBER 00061

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) - STORMWA
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ® Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: Aril
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes N No ❑
Have you contacted the Regional Office? Yes N No ❑
Whom at the Region did you_speak with? Thad Valentine
Stormwater Monitorina Reauirements
Outfall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/I
(VMA)
IfaPplicable
New Motor Oil
Usage (gal/mo.)
1I epp/(caWe
mo/dd/,yr
INK4N_ FLOW"
inches
Y/N
Y/N
100
50 GRW, Now, Tr. vNn)
6.0-9.0
15
fasTSSaWNoamage
requires T55 a� Non -polar
o&G Mnuorine
001
4/30/19
---
N
N
Semi -Annual
N/A
N/A
002
4/30/19
---
Y
Y
NO DISCHARGE
003
4/30/19
---
Y
N
NO DISCHARGE
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022
Last Revised 8-22-2017
Page 1 of 2

Certificate of Coverage No. NCG140266
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
Signature
Mail
[Required by 40 CFR §122.22]
Date5-13-lq
Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
ASHEVILLE REGIONAL OFFICE I FAYETTEVILLE REGIONAL OFFICE I 510ORESVILLE REGIONAL OFFICE
2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301
Swannanoa, NC 28778 Systel Building Suite 714 Mooresville, NC 28115
[phone] Fayetteville, NC 28301-5043 [phone]
[phone]
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WASHINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
WINSTON-SALEM REGIONAL CENTRAL OFFICE
OFFICE Questions for The Central Office
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103 Stormwater Permitting Program?
[phone] [phone]
Permit Date 8/1/2017 — 6/30/2022
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Last Revised 8-22-2017
Page 2 of 2

n ..
D VNCKLEE ENVIRONMENTAL GEOLOGISTS & ENGINEERS
511 KEISLIiR DRIVE - SUITE 102
I� CARY, NORTH CAROLINA 27518
&DUNHAM OFFICE
I919t xsx-9sva
W W W DUNCKLF.EDUNHAM COM
NC Dept of Environmental Quality
January 18, 2019
JAN z z zoos
North Carolina Division of Energy, Mineral and Land Resources Raleigh Regional Office
Land Quality Section
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier II Monthly Stormwater Discharge Monitoring
Reports
On behalf of 'Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed Stormwater Tier 11
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of January. If you have any questions, please contact us at [phone] or via email at
l [e-mail].
Sincerely,
Duncklee & Dunham, P.C.
Lily Walker
Staff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, January
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, January
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, January
MAILING ADDRESS - POST OFFICE BOX 639 - CARY, NORTtI CAROLINA 27512
NORTH CAROLINA BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS LICENSE C-3659
NORTH CAROLINA BOARD FOR LICENSING OF GEOLOGISTS LICENSE C-261
NC DEQ REGISTERED ENVIRONMENTAL CONSULTANT NUMBER 00061

14C C-b., 44 om;ju r,

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DM R) — STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of recut from the laboratory.
Certificate of Coverage No. NCG 140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ® Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: January
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes ® No ❑ _
Whom,at the -Region did -you -speak -with? Thad Valentine - --
Stormwater Monitorina Reauirements
Ouffall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/1
(VMA)
n web
New Motor Oil
Usage (gal/mo.)
I/applkabb
.
a
moldd/yr
or "NO FLOW"
_. s
inches
Y/N
Y/N
100
50 (ORW. NOW. Tr, PNA)
6.0-9.0
15
eVmo
>550. everepe
re0 nTSS.M Nod [.
O GmoMIWM
001
Semi -Annual
0.22
N
N
Semi -Annual
WA
N/A
002
01/04/19
0.22
Y
Y
222
10.48
1.51 J
>55 gal/mo
003
01/04/19
0.22
Y
N
107
10.18
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

Certificate of Coverage No. NCG140266•
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 property 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
Signature
violations." [Required by40 CFR§122.22]
Date (- I
Mail Benchmark ExceedancefTier 2 DMR to Your DEMLR Regional Office Land Quality Section:
2090 US Highway 70
Swannanoa, NC 28778
(828)2964500
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
1 [phone]
Permit Date 8/1/2017 — 6/30/2022
PAVE I I E V ILLE KEI;IUNAL OFFICE
225 Green Street
Systel.Building-Suite 714
Fayetteville, NC 28301-5043 1
[phone]
WASHINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
CENTRAL OFFICE
Questions for The Central Office
Stormwater Permitting Program?
[phone]
MUUKESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
- Mooresville, NC 28115
(704) 663-169,
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone] j
Last Revised 8-22-2017
Page 2 of 2

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER
SUBMIT TUREG/ONAL OFFICE*:
General Permit No. NCG140000
'Use this form if any stormwater samples'have-EXCEEDED'A BENCHMARK or. if the facility 'is'in TIER 2 MONITORING for any parameter.
m Send sample; results, to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ® Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: March
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham, Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom -at -the Region "did you "speak with? Thad Valentine
Stormwater Monitoring Reauirements
Outfall
No.
Date Sample
p
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/1
(VMA)
1I.P01cbm
New Motor Oil
Usage (gal/mo.)
n ePWeeO e
s
eye`'^`
awelldl/yr ,,6�
�, Y ',� Mg
,or�;NOxFUOW.;,,.
in�ch�es`'
k ' 5v,4'
Y/N
Y/N
1HO
S0 (ORW. HOW. Tr. PNA)
6.0-9.0
15
". csT �Nn�r,y ,
O&O mmoring
001
3/31/19
N
N
Semi -Annual
N/A
N/A
002
3/31/19
Y
Y
NO DISCHARGE
003
3/31/19
---
Y
N
NO DISCHARGE
N/A
N/A
'ermit Date 8/1/2017 — 6/30/2022
NC Dept of Environmental Quality
APR 15. 2019
Last Revised 8-22-2017
Page 1 of 2
Raleigh Regional Office

Certificate of Coverage No. NCG140266
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
Signature
Mail
ASHEVILLE REGIONAL OF]
2090 US Highway 70
Swannanoa, NC 28778
[phone]
3800 Barrett Drive
Raleigh, NC 27609
[phone]
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
f�
Permit Date 8/1/2017 — 6/30/2022
[Required by 40 CFR §122.22]
Date " - LD - `q
nce/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
FAYEWEVILLE REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
943 Washington Square Mall
Washington, NC 27889
[phone]
Questions for The Central Office
Stormwater Permitting Program?
[phone]
MOORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
(704)663-I699
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Last Revised 8-22-2017
Page 2 of 2

RIE
April 11, 2019
DUNCKLEE
& DUNHAM
ENVIRONMENTAL GEOLOGISTS & I:NGINL'ERS
511 KEISLER DRIVE - SUITE 102
CARY, NORTH CAROLINA 27518
OFFICE: [phone]
W W W.I)UNCKI.F..EI)UNIfAM.COM
North Carolina Division of Energy, Mineral and Land Resources
Land Quality Section
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier 11 Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed Stormwater Tier II
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of March. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
Duncklee & Dunham, P.C.
l Y
y Wa er
taff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, March
Tier 2 Discharge Monitoring Report (DMR)— Stormwater for Raleigh Plant, March
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, March
MAILING ADDRESS — POSTOi7ncr Box 639 — CARY, Nowni CAROLINA 27512
NORTH CAROLINA BOARD OFF NAMINERS FORIENGINLERS AND SURVEYORS LICENSE C-3559
NORTH CAROLINA BOARD FOR LICENSING OF GCOI.OGIS I S LICENSE C-261
NC DEQ REGISTERED ENVIRONMENTAL CONSULTANT NUMBER 00061
U
z
u
w
0
R

.: - -"U
D V 1.V CKLEE ENVIRONMENTAL GEOLOGIST'S RI ENGINEERS
SUITE
511 KEISLEH DRIVE 102
NORTH CAROLINA 2751
ODUvHAM OFFICE [phone]
WW W DUNCKLF,EDUNIIAM COM
NC DOpt Of Environ mental Quality
June 6, 2019 JUN
i
North Carolina Division of Energy, Mineral andliLand Resources Raleigh Regional Office
Land Quality Section
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
I
Reference: Benchmark Exceedance and Tier 11 Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater Tier II
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of May. If you have any questions,I,please contact us at [phone] or via email at
lily@dunckleed unham.com.
Sincerely,
Duncklee & Dunham, P.C.
ei ��—
Lily Walker
Staff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — StormIwater for Morrisville Plant, May
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, May
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, May
MAILING ADDRESS - POS"IOFFICE Box 639 - CARY, Noicri I CAROI.INA 27512
NORTII CAROLINA 130ARD017 EXAMINERS FOR ENGINEERS AND SURVEYORS LICENSEC-3559
NORTH CAROLINA BOARD FOR LICENSING OF GFOLOGIS'I'S I-ICENSEC-261
NC DFQ REGIS IERCD FNVIRONMFN AI, CONSULTANT NUMBER 0 061

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT
II SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
TER
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Sendsampleresults to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 10 Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: May
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes N No ❑
Have you contacted the Regional Office? Yes N No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitoring Requirements
Does this SDO
Total
Non -polar O&G
include Vehicle
Suspended
pH,
(EPA Method 1664
New Motor Oil
Outfall
Date Sample
Total
Is this SOO in
Maintenance
Solids (TSS),
SU
(SGT-HEM)), mg/I
Usage (gal/mo.)
No.
Collected
Rainfall
Tier 2?
Activities (VMA)?
mg/I
(VMA)
Mappllpabb
ff.ppWebm
mo/dd/yr
inches
Y/N
Y/N
100
SO
6.0-9.0
15
>55 gallmb. average
r 1.TSS.i NN.y W
o" r NO FLOW"
(OM, oOW.Tr,PNA)
001
5/31/19
---
N
N
Semi -Annual
N/A
N/A
002
5/31119
---
Y
Y
NO DISCHARGE
003
5/31/19
---
Y
N
NO DISCHARGE
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022
NC Dept of Environmental Quality
',tN 10 2019
Raleigh Regional Office
Last Revised 8-22-2017
Page 1 of 2
0'-

Certificate of Coverage No. NCG140266
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
Signature
Mail Bench
[Required by 40 CFR §122.22]
Date L 5 - 19
2 DMR to Your DEMLR Regional Office Land Quality Section:
ASHEVILLE REGIONAL OFFICE FAYETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE
2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301
Swannanoa, NC 28778 Systel Building Suite 714 Mooresville, NC 28115
[phone] Fayetteville, NC 28301-5043 [phone]
[phone]
RALEIGH REGIONAL OF
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
943 Washington Square Mall
Washington, NC 27889
[phone]
CENTRAL OFFICE
Questions for The Central Office
Stormwater Permitting Program?
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

DUNCKLEE
& DUNHAM
July 9, 2019
ENVIRONMENTAL GEOLOGISTS & ENGINEERS
511 KEISLER DRIVE - SUITE 102
CARY, NORTH CAROLINA 27518
OFFICE: [phone]
W W W DUNCKLF.EDUNHAM COM
North Carolina Division of Energy, Mineral and Land Resources
Land Quality Section
Raleigh Regional Office
3800 Barrett Drive
Raleigh, North Carolina 27606
Reference: Benchmark Exceedance and Tier II Monthly Stormwater Discharge Monitoring
Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater Tier 11
discharge monitoring reports (DMRs) for facilities located in Morrisville, Raleigh, and Wake Forest for
the month of June. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
Duncklee & Dunham, P.C.
/ilyW ker
Staff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, June
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, June
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, June
MAILING ADDtL'SS - POST OFI'ICI? Box 639 - CARY. NOIi'1'li CAROLINA 27512
NORI'II CAROLINA BOARDOF EXAMINERS FOR ENGINEERS AND SURV17YORS LICRNSEC-35j9
NORTH CAROLINA BOARD FOR LICENSING OF GEOLOGISTS LICENSEC-26I
NC DEO REGISTERED ENVIRON.FIENTAL CONSULTANT NUMBER 00061

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the: DEMLR Regional Office within 30 days of receipt fiom the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ® Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: June
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Does this SDO
Total
Non-polar'O&G
include Vehicle
Suspended
pH,
(EPA Method 1664
New Motor Oil
Date Sample
P
Total
Is this SDO in
Maintenance
Solids TSS ,
( 1
SU
(SGT-HEM m /I
)), g
Usage
g (gal/mo.)
Nut
No.
Collected
.Rainfall
Tier2?
Activities (VMA)?
mg/I
(VMA)
lfa !cable
lrapylrcablo
-�
T.q s
mo/dd/yrE
for„,"NO�FLOW"'+'
inches..
Y/N
YIN
100
50
6.0-9.0
15
>55 gagmo. average
reaulresT55and Nonpolar
(orsw.eaw,rr.vNn)
oac naNm g
001
6/7/19
0.26
N
N
2.40
7.24
N/A
N/A
002
6/7/19
0.26
Y
Y
20.4
11.04
<5.32
>55 gal/mo
003
6/7/19
0.26
Y
N
200
9.03
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

Certificate of Coverage No. NCG146266
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
Mail Be
ASHEVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
Date (� -
Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
REGIONAL OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
WASHINGTON REGIONAL OFFI
943 Washington Square Mall
Washington, NC 27889
[phone]
Questions for The Central Office
Stonnwater Permitting Program?
[phone]
nouRESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

Certificate of Coverage No. NCG140306j
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]
SignE
Date
Mail Benchmark Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
ASHEVILLE REGIONAL OFFICE I FAYETTEVILLE REGIONAL OFFICE
2090 US Highway 70 1 225 Green Street
Swannanoa, NC 28778 Systel Building Suite 714
[phone] Fayetteville, NC 28301-5043
1 [phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
W
943 Washington Square Mall
Washington, NC 27889
[phone]
CENTRAL OFFICE
Questions for The Central Office
Stormwater Permitting Program?
[phone]
MVVHNJVILLG KLUMINAL VH'NII,E
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 3

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER _
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
'Use this form If any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140350
Facility Name: Thomas Concrete of Carolina — Wake Forest Plant Sample Collection Period: Period 1 ® Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: June
Phone Number: 919-562-1909 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes E) No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Outfall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/1
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/I
(VMA)
Iraka le
New Motor Oil
Usage (gal/mo.)
Il epplica6le
.-r a ;
,o/dd/yr
m
`or "NO_FLOW"_;
-
inches:•
o-- 1&
Y/N
Y/N
1OO
50 (ORW, HOW, Tr, PM)
6.0-9.0
15
s559xVmo. aw.q.
m UlmsTSSam1Noo-polar
O&G mo ftodng
001
06/30/19
Y
N
NO DISCHARGE
N/A
N/A
Permit Date 811/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 3

Certificate of Coverage No. NCG140001
CERTIFICATION '
i•
"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 §122.221
Signs
Date
Mail Benchmark Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
ASHEVILLE REGIONAL OFFICE FAYETTEVILLE REGIONAL OFFICE I MOORESVILLE REGIONAL OFFICE
2090 US Highway 70225 Green Street 1610 East Center Avenue/Suite 301
Swannanoa, NC 28778 Systel Building Suite 714 1 Mooresville, NC 28115
[phone] Fayetteville, NC 28301-5043 [phone]
j [phone]
3800 Barrett Drive
Raleigh, NC 27609
[phone]
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
WASHINGTON REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
[phone]
Questions for The Central Office
Stormwater Permitting Program?
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 3

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) - STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
*Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140001
Facility Name: Thomas Concrete of Carolina — Raleigh Plant Sample Collection Period: Period 1 N Period 2 ❑ Calendar Year 2019
County: Wake For Monthly Monitoring: Month: June
Phone Number: 919-828-4403 Person Collecting Samples: Duncklee & Dunham, Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes N No ❑
Have you contacted the Regional Office? Yes N No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Ouffall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/I
(VMA)
1/a kable
New Motor Oil
Usage (gal/mo.)
/app icebb
_ .
mo/dil/yr
or_+"/r'NQW_„FLO.,.-
inches
Y/N
Y/N
700
50 (ORW, HOW, Tr, PNA�
6.0-9.0
15
raouIresT55aMNam Wr
O&G monitoring
001
6/30/19
—
Y
N
NO DISCHARGE
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 3

. t —
BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ® Period 2 ❑ Calendar Year 2018
County: Wake For Monthly Monitoring: Month: July
Phone Number: 919-460-5317 Person Collecting Samples:
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at anyone SW discharge outfall (SDO)? Yes® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Does this SOO
Total
Non -polar O&G
include Vehicle
Suspended
pH,
(EPA Method 1664
New Motor Oil
Outfall
ae
Date Sample
p
Total
Is this SDO in
Maintenance
Solids (TSS),
SU
(SGT-HEM)), mg/I
Usage (gal/mo.)
No.
Collected
Rainfall
Tier 2?
Activities (VMA)?
mg/I
vyyrreet.
n(VMA)
mo/dd/yr
inches
Y/N
Y/N
100
50 (ORW. NOW. Tr, PNA(
6.0-9.0
15
�im SS a �
OSG mon1tWn,
IIIMMMOFFSOMA
001
NO FLOW
Y
Y
002
NO FLOW
Y
Y
003
NO FLOW
Y
Y
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 3

CERTIFICATION
Certificate of Coverage No. NCG140266
"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 vi ns." (Required by 40 CFR §122.221
Signature I I 1
Date laml'} I19�
Mail Benchmark ExceedancelTier 2 DMR to Your DEMLR Regional Office Land Quality Section:
ewncvu,La l[bl.lV1VAL VHZ''1(:E
FAYETTEVILLE REGIONAL OFFICE
2090 US Highway 70
225 Green Street
Swannanoa, NC 28778
Systel Building Suite 714
[phone]
Fayetteville, NC 28301-5043
[phone]
RALEIGH REGIONAL OFFICE
WASHINGTON REGIONAL OFFICE
3800 Barrett Drive
943 Washington Square Mall
Raleigh, NC 27609
Washington, NC 27889
[phone]
[phone] J
WINSTON-SALEM REGIONAL
CENTRAL OFFICE
OFFICE
450 Hanes Mill Road, Suite 300
Questions for The Central Office
Winston-Salem, NC 27103
Stormwater Permitting Program?
[phone]
[phone]
Permit Date 8/1/2017 — 6/30/2022
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Last Revised 8-22-2017
Page 3 of 3
r

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATEI2
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
*Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2018
County: Wake For Monthly Monitoring: Month: Au ust
Phone Number. 919-460-5317 Person Collecting Samples: Duncklee & Dunham
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at any one SW discharge outfall (SDO)? Yes ® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Does this SDO
Total
Non -polar O&G
include Vehicle
Suspended
pH,
(EPA Method 1664
New Motor Oil
Outfall
Date Sample
Total
Is this SDO in
Maintenance
Solids (TSS),
SU
(SGT-HEM)), mg/I
Usage (gal/mo.)
No.
Collected
Rainfall
Tier 2?
Activities (VMA)?
mgA
(VMA)
n.wyK,w.
na �
mo/dd/yr
inches
Y/N
YIN
10
50 �oRw oow,Tr,Pru)
6.0-9.0
15
>55 gaVmo, mraye
eptl o Vr
or r'NO FLOW"
001
SEMIANNUAL
N
N
002
NO FLOW
Y
Y
003
NO FLOW
Y
N
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

CERTIFICATION
Certificate of Coverage No. NCG140266
"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." /Reouired by 40 CFR S129 997
Signature
Date 10-11-1?
Mail Benchmark Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
EVILLE REGIONAL OF.
2090 US Highway 70
Swannanoa, NC 28778
[phone]
FA
OFFICE
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
RALEIGH REGIONAL OFFICE I WASHINGTON REGIONAL OFFICE
3800 Barrett Drive 943 Washington Square Mall
Raleigh, NC 27609 Washington, NC 27889
(919)791A200 [phone]
wiNM UN-SALEM REGIONAL CENTRAL OFFICE
OFFICE
4I Questions for The Central Office
50 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103 Stormwa(9 Permitting Program?
[phone] [phone]
Permit Date 8H/2017 — 6/30/2022
nUURES V ILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension j
Wilmington, NC 28405-2845
[phone]
Last Revised 8-22-2017
Page 2 of 2
I

t3ENGH IMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) - STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
'Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
. Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2018
County: Wake . For Monthly Monitoring: Month: September
Phone Number: 919-460-5317 Person Collecfing Samples: Duncklee & Dunham
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at anyone SW discharge outfall (SDO)? Yes® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorina Reauirements
Outfall
No
Date Sample
p
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SOO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/1
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/I
(VMA)
Ye IceEN
New Motor Oil
Usage (gaUmo.)
Yapp'MeDb
mo/dd/yr
or "NO FLOW.
inches
Y/N
Y/N
100
5O (ORW,NGW,Tr,PNA)
6.0-9.0
15
o I cs�sro nv
001
SEMIANNUAL
N
N
002
NO FLOW
Y
Y
003
NO FLOW
Y
N
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

CERTIFICATION
Certificate of Coverage No. NCG140266
"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- violations." [Required by 40 CFR §122.22]
Signature
Date (O- c� 113
Mail Benchmark Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OF
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
Permit Date 6/1/2017 — 6/30/2022
AYETTEVILLE REGIONAL OFF
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
REGIONAL OFFICE
943 Washington Square Mall
Washington, NC 27889
_ [phone]
CENTRAL OFFICE
Questions for The Central Office
Stormwater Permitting Program?
[phone]
MOORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Last Revised 8-22-2017
Page 2 of 2

DUNCKLEE
& DUNHAM
October 25, 2018
ENVIRONMENTAL. GEOLOGISTS & I?NGINEERS
511 KEISLER DRIVE - SUITE 102
CARY, NORTHCAROLINA 27518
OFFICE: [phone]
W W W.DUNCKLEEDUNHAM COM
NC Dept of Environmental Quality
North Carolina Division of Energy, Mineral and Land Resources OCT 2 9 gniR
Land Quality Section
Raleigh Regional Office 3800 Barrett Drive Raleigh Regional Office
Raleigh, North Carolina 27606
Reference: Monthly Stormwater Discharge Monitoring Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater discharge
monitoring reports for facilities located in Morrisville, Raleigh, and Wake Forest. If you have any
questions, please contact us at [phone] or via email at [e-mail].
Sincerely,
Duncklee & Dunham, P.C.
Lily Walker
Staff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant
MAILING ADDRESS - POST OFFICE BOX 639 - CARY, NORTH CAROLINA 27512
NORTH CAROLINA BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS LICENSE C-3559
NORTH CAROLINA BOARD FOR LICENSING OF GEOLOGISTS LICENSE C-261
NC DEQ REGISTERED ENVIRONNIENfAL CONSULTANT NUMBER 00061

9
BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
`Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2018
County: Wake For Monthly Monitoring: Month: October
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at anyone SW discharge outfall (SDO)? Yes® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitoring Reauirements
Outfall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 2?
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM)), mg/I
(VMA)
n we a
New Motor Oil
Usage (gal/mo.)
Mtpp/lcabh
mo/dd/yI
Or"NO FLOWN
_
inches
Y/N
Y/N
100
50 (OM. HOW. Tr, PNA)
6.0-9.0
15
m ut zTSSaMNo Iar
O&G=MtOTIN
001
10111/18
3.18
N
N
6.46
6.71
NIA
N/A
002
10/11/18
3.18
Y
Y
45.20
11.42
0.00
>55 gal/mo
003
10/11/18
3.•8
Y
N
66.20
12.09
N/A
N/A
Permit Date 8l1/2017 — 6/30/2022 Last Revised 8.22-2017
Page 1 of 2

Certificate of Coverage No. NCG140266
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
Signature
Mail Benchmark
ASHEVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
019)791-4200
WINSTON-SALEM REGIONAL
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
by 40 CFR §122.221
Date j0-aq - jj J
2 DMR to Your DEMLR Regional Office Land Quality Section:
FAYETTEVILLE REGIONAL OFFIi
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
WASHINGTON REGIONAL OFFIC
943 Washington Square Mall
Washington, NC 27889
[phone]
UEN I RAL UFM R:h
Questions for The Central Office
Stormwater Permitting Program?
[phone]
MOORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WILMINGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

DUNCKLEE
& DUNHAM
December 14, 2018
ENVIRONMENTAL, GEOLOGIS'IS & ENGINEERS
511 KEISLER DRIVE - SUITE 102
CARY, NORTHCAROLINA 27518
OFFICE: (919) 959-989R
W W W.DUNCKLEEDUNHAM.COM
NC Dept of Environmental Quality
North Carolina Division of Energy, Mineral and Land Resources DFC
Land Quality Section
Raleigh Regional Office Raleigh Re 10
3800 Barrett Drive g tial Office
Raleigh, North Carolina 27606
Reference: Monthly Stormwater Discharge Monitoring Reports
On behalf of Thomas Concrete Duncklee & Dunham, P.C. submits the enclosed stormwater discharge
monitoring reports for facilities located in Morrisville, Raleigh, and Wake Forest for the month of
November. If you have any questions, please contact us at [phone] or via email at
[e-mail].
Sincerely,
Duncklee & Dunham, P.C.
i
Lily Walker
Staff Engineer
cc: Justin Hartley
Thomas Concrete
Enclosures
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Morrisville Plant, November
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Raleigh Plant, November
Tier 2 Discharge Monitoring Report (DMR) — Stormwater for Wake Forest Plant, November
MAILING ADDRESS - POST OFFICE BOX 639 - CARY, NORTH CAROLINA 27512
NORTH CAROLINA BOARD OF EXAMINERS FOR ENGINEERS AND SURVEYORS LICENSE C-3559
NOR FH CAROLINA BOARD FOR LICENSING OF GEOLOGISTS LICENSE C-261
NC D17Q REGISTERED ENVIRONMENTAL CONSULTANT NUMBER 00061

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) - STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
`Use this form if any stormwater samples have EXCEEDED A BENCHMARK or if the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2018
County: Wake For Monthly Monitoring: Month: November
Phone Number: 919-460-5317 Person Collecting Samples: Duncklee & Dunham
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at anyone SW discharge outfall (SDO)? Yes N No ❑
Have you contacted the Regional Office? Yes E No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitoring Requirements
Does this SDO
Total
Non -polar O&G
include Vehicle
Suspended
pH,
(EPA Method 1664
New Motor Oil
Outfall
Date Sample
Total
Is this SDO in
Maintenance
Solids (TSS),
SU
(SGT-HEM)), mg/I
Usage (gal/mo.)
No
Collected
Rainfall
Tier 2?
Activities (VMA)?
mg/I
(VMA)
M applicable
lt,ppikabl.
mo/dd/yr
inches
Y/N
Y/N
100
50 (GRW, HOW, Tr, PNA)
6.0-9.0
15
e gagma
olar
requires TSS anndd Non -polar
G&G monitn,ing
or "NO F.LQW"
001
SEMIANNUAL
N
N
002
NO FLOW
Y
Y
003
NO FLOW
Y
N
14C Dept of Environmental Quality
DEr. 71 2m8
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Raleigh Regional Office Page 1 of 2

BENCHMARK EXCEEDANCE or TIER 2 DISCHARGE MONITORING REPORT (DMR) — STORMWATER
SUBMIT TO REGIONAL OFFICE*
General Permit No. NCG140000
'Use this form if any stonnwater samples have EXCEEDED A BENCHMARK or If the facility is in TIER 2 MONITORING for any parameter.
Send sample results to the DEMLR Regional Office within 30 days of receipt from the laboratory.
Certificate of Coverage No. NCG140266
Facility Name: Thomas Concrete of Carolina — Morrisville Plant Sample Collection Period: Period 1 ❑ Period 2 ® Calendar Year 2018
County: Wake For Monthly Monitoring: Month: December
Phone Number. 919-460-5317 Person Collecting Samples: Duncklee & Dunham. Lily Walker
Certified Laboratory: ESC Lab # ENV 375
Lab #
Has this facility had 4 or more benchmark exceedances for any single parameter, at anyone SW discharge outfall (SDO)? Yes® No ❑
Have you contacted the Regional Office? Yes ® No ❑
Whom at the Region did you speak with? Thad Valentine
Stormwater Monitorinq Requirements
Outfall
No.
Date Sample
Collected
Total
Rainfall
Is this SDO in
Tier 27
Does this SDO
include Vehicle
Maintenance
Activities (VMA)?
Total
Suspended
Solids (TSS),
mg/I
pH,
SU
Non -polar O&G
(EPA Method 1664
(SGT-HEM , m /I
)) 9
(VMA)
A• .teEk
New Motor Oil
Usage
g (gal/mo.)
1/epplca0!
f
_y &
mo/ddiyr
or NO F,L�OW=�
inches
Y/N
YIN
100
50 (IX ,HOw,T,,PNA)
6.0-9.0
15
3 9eNm. ar.,ege
row rea Tss aea Hu Pae.
G GmoNt m
001
12/14/18
0.15
N
N
Semi -Annual
N/A
N/A
002
12/14/18
0.15
Y
Y
328
12.16
0.00
>55 gaUmo
003
12/14/18
0.15
Y
N
282
12.09
N/A
N/A
Permit Date 8/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 1 of 2

Certificate of Coverage No. NCG140266
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 property 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
Signature
" [Required by 40 CFR §122.221
Date 1 -3 -19
Mail Benchmark Exceedance/Tier 2 DMR to Your DEMLR Regional Office Land Quality Section:
EVILLE REGIONAL OFFICE
2090 US Highway 70
Swannanoa, NC 28778
[phone]
RALEIGH REGIONAL OFFICE
3800 Barrett Drive
Raleigh, NC 27609
[phone]
WINSTON-SALEM REGIONAL
OFFICE
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27103
[phone]
F'AYE'rFEVILLE REGIONAL OFF
225 Green Street
Systel Building Suite 714
Fayetteville, NC 28301-5043
[phone]
WASHINGTON REGIONAL OFFI
943 Washington Square Mall
Washington, NC 27889
[phone]
CENTRAL OFFICE
Questions for The Central Office
Stormwater Permitting Program?
[phone]
40ORESVILLE REGIONAL OFFICE
610 East Center Avenue/Suite 301
Mooresville, NC 28115
[phone]
WIN INGTON REGIONAL OFFICE
127 Cardinal Drive Extension
Wilmington, NC 28405-2845
[phone]
Permit Date 6/1/2017 — 6/30/2022 Last Revised 8-22-2017
Page 2 of 2

I
STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2014
Individual NPDES Permit No. NCSUUUULJLJ or
Certificate of Coverage (COC) No. NCG140266
J
This monitoring report summary of the calendar year is due to the DWQ Regional Once no later than March 1" of the following year.
Facility Name: Thomas Concrete of Carolina -Morrisville Plant
County: Wake
Phone Number: ( 919 ) 460-5317 Total no. of SDOs monitored _3
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)?
Yes ❑ No ®
xT
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
Yes ElNo ®
m
;`a
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
a3
—�
Enough consecutive samples below benchmarks to decrease frequency
❑
Received approval from DWQ to reduce monitoring frequency
❑
Q
Other
❑
—
Was this SDO monitored because of vehicle maintenance activities?
Yes I-1 No 5
Parameter, unite
Total
Rainfall,
inches
pH
(Standard
units)
TSS
( TSS
Benchmark
N/A
6.0-9.0
100
Date Sample
Collected,
mmfddlyyOWN
TIM
0
04/30/14
1.12
7.05
17.6
12/15/14
0.6
17.06
11.4
SW U-264-Generic-25 May2010

14C DEMIS 1019iav Ke8!u"l ou;ce

Additional Outfall Attachment
Outfall No. _002_
Is this outfall currently in Tier 2 (monitored monthly)? Yes ® No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWO to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No
Parameter, units
Total
Rainfall,
Inches
pH
(Standard
units)
TSS
(m9�)
Benchmark
N/A
6.0-9.0
100
Date Sample
Collected,
mmlddlyy
04/30/14
1.12
11.63
164
12/15/14
0.6
9.97
a5
Outfall No. _003_
Is this outfall currently in Tier 2 (monitored monthly)? Yes ® No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
SW U-264-Generic-25 May2010

Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No
Parameter, units
Total
Rainfall,
Inches
PH
(Standard
units)
TSS
( TSS
Benchmark
N/A
6.0-9.0
100
Date Sample
Collected,
mm/ddl
.4x
`'
�sf .r.i
(' (
it
s:.iF)
i
�1,a
of ^n
c
w
�aq
[EP e
04130/14
1.12
8.90
260
12116/14
0.6
9.43
230
"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
Date �
SW U-264-Generic-25May2010

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR)
Calendar Year 2012
Individual NPDES Permit No. NCSLJLJLJ""LJ or
Certificate of Coverage (COC) No. NCG140266
FEB 11 2013 D,
CENR
gionaf Offi:e
This monitoring report summary of the calendar year is due to the DWQ Regional Office no later than March is'of the following year.
Facility Name: Thomas Concrete of Carolina -Morrisville Plant
County: Wake
Phone Number: ( 919 _)_ 460-5317 Total no. of SDOs monitored
Outfall No. _001_
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No
-
f Parameter; un s
Total
Rainfall,
inches
pH
(Standard
units)
TSS
(mg/L)
-
Benchmark
N/A
6 0 9 0
100-
Date Sample
Collected
mm/ddlYY
"_
fi :. s.x
°tea�r
g�,
s:w
a 3)
;n h
t'+tq
.a.Ne ME
n'tE
=
ft�
.`
, s �f1
cr
r
10/29/12
0.55
6.2
1.1
NO DISCHARGE FROM OUTFALL DURING FIRST SEMI-ANNUAL MONITORING PERIOD
S WU-264-Generic-25May2010

Additional Outfall Attachment
Outfall No. 002
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No
'Parameter,
Total
Rainfall,
inches
pH
(Standard
units)
TSS
(mglL)
Benchmark
N/A
5 0 9 0
100
-
-
Date Sample
Collected
mm/dd/yy
M�'' �r
�1, e2
�. `t€
`.�"§xf"'r'
x S
d�{{
,� �}�
m A w
.�.
@S} ers
r
l:-0 i
v
4 1� y
=
i _'�F t
�a
a
x Mn
10/29/12
0.55
11.4
140
NO DISCHARGE FROM OUTFALL DURING NORMAL OPERATING HOURS IN FIRST SEMI-ANNUAL MONITORING PERIOD
S WU-264-Generic-25 May2010

Outfall No. _003_
Is this outfall currently in Tier 2 (monitored monthly)?
Was this outfall ever in Tier 2 (monitored monthly) during the past year?
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities?
Yes ❑ No
Yes ❑ No
Yes ❑ No
.5. u. '� L..' .�.:... ^...� .. ...
,.Parameter, units -.
Total
Rainfall,
inches
pH
(Standard
units)
TSS
(mglL)
Benchmark
Date Sample
Collected i
mm/dd/YY3a
N/A
'. ..
y. �
%�'.
z:_a3,
6 0 9 0
.t .t'
fl'Yi-
7.35
100
-
j �
Y 5 �V �
300
� gsmc
.• Sg r7`
� �. �
n5rz ..�,FlF�
-
cm ^n
zia z
m�-`R 'G'-�*
��� s
TIN i`
s HIM
toxic
T ',f 4-
-�
�
c �'�;, � -'�
} �c,-� � it
k±
ira `�sn- �� J
y
-
^,':irk• �lY�*s3 P�'�'-+
10/29112
0.55
NO DISCHARGE FROM OUTFALL DURING NORMAL OPERATING HOURS IN FIRST SEMI-ANNUAL MONITORING PERIOD
S WU-264-Generic-25May2010

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 ossibility of fines and impriso ment for knowing violations."
t 1�r.as�Ceae gCAza� ao yaa -
Signatu
Date 'Y
Mail Annual DMR Summary Reports to:
DWQ Reqional Office Contact Information:
XSHEVItitiE REGIONAL OFFICE
FAYETTEVIELE REGIONAV OFFICE
MOORESVIL► E REGIONAE';OFFICE
2090 US Highway 70
225 Green Street
610 Cast Center Avenue/Suite 301
Swannanoa, NC 28778
Systel Building Suite 714
Mooresville, NC 28115
[phone]
Fayetteville, NC 28301-5043
[phone]
910 433-3300
RALEIGA�REGIONAL'OFFICE
WASIIiNGTON REGIONAC-OFFICE
WILMINGTON;RFCIONAt:OFFICE
3800 Barrett Drive
943 Washington Square Mall
127 Cardinal Drive Extension
Raleigh, NC 27609
Washington, NC 27889
Wilmington, NC 28405-2845
[phone]
[phone]
[phone]
WINI STON=SAI EDI REGIONAE OFFICE
CENTRAVOFFICE
585 Wauglllown Street
1617 Mail Service Center
s 76 e3erve protect
Winston-Salem, NC 27107
Raleigh, NC 27699-1617
Dj IU�Clt andenhanee
[phone]
[phone]
North Car ihas"ter
S WU-264-Generic-25May2010

PROCESS WASTEWATER — Quarterly Discharge Monitoring Repo
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140266
FACILITY NAME: _Thomas Concrete of Carolina- Morrisville Plant
PERSON COLLECTING SAMPLES: Ben Johnson
CERTIFIED LABORATORY:_ESC Lab # ENV375_
Lab p
LIMIT VIOLATIONS? YES [—]NO
Part A: Wastewater Monitoring Requirements
SAMPLE COLLECTION YEAR: _2012
SAMPLE QUARTER: [_]Jul -Sept ®Oct -Dec ❑Jan -March
COUNTY: Wake
PHONE NO. (_919 460-5317
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA ❑Trout
OPTIONAL INFO:
FEB 1 1 2013
f�C DRI
REg.ional Office
❑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)
?PH using:
method 1664A
-SGT-HEIR-
(mg/L) _
Discharge
Duration
. -
(minutes)
Total Flow
(gallons/day)
_
- - -
- _
6-93.4
303,5
,. 53
(15)6
Click here to
enter text.
Click here to
enter test.
Click here to
enter text.
Click here
to enter
text.
Click
here to
enter
test.
001
No discharge
related to
wastewater
' If wastewater systems have not discharged in this quarter — report "No Flom" or "No Discharge" here. Please make sure to mark the sample quarter above.
Permit Date: 7/1/2010-06/30/2015
Last Revised 07/13/11
Page 1 of 2

.,
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.
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 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.
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 HOW waters shall be set to 50% of the Summer 7Q10 Flow as per 15A
NCAC 02B .0224. Permittees who discharge wastewater to HOW 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"I 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
Permit Date: 7/1/2010-06/30/2015 Last Revised 07/13/11
Page 2 of 2

complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing
of Permittee) (Date
Permit Date: 7/1/2010-06/30/2015
Last Revised 07/13/11
Page 3 of 2

STORMWATER DISCHARGE OUTFALL (SDO)
QUALITATIVE MONITORING REPORT
Certificate of Coverage No. NCG 1 0 z61
Facility Name: me r u 4- rY orrs ll o
County: (1 �o 1i ° _ Phone No.:1A ED -219 Flo l 3
Inspector: --Tt-�c < c t\
Date of Inspection:
By this signature, I certify that this report is accurate and complete to the best of my
jnledge*,0,'a ermittee or Designee)
Outfall Description
Outfall No.: -4- Structure (pipe, ditch, etc.):�'!t=
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color
Describe the color of the discharge using basic colors (red, brown, blue, etc.) and tint
(light, medium, dark) as descriptors:
I ,
3. Odor
Describe any distinct odors that the discharge may have (i.e. smells strongly of oil, weak
chlorine odor, etc.):
11/17/97

4. Clarity.
i
Choose the number which best describes the clarity of the discharge where 1 is clear and
10 is very cloudy:
1 2 3 4 5 6 7 8, 9 10
5. Floating Solids
Choose the number which best describes the amount of floating solids in the stormwater
discha/rwhere 1 is no solids and 10 is the surface covered in floating solids:
� I' 2 3 4 5 6 7 8 9 10
6. Suspended Solids
Choose the number which best describes the amount of suspended solids in the
stormer discharge where 1 is no solids and 10 is extemely muddy:
7 2 3 4 5 6 7 8 9 10
7. Foam
Is there any foam in the stormwater discharge? YES 00,
8. Oil Sheen
Is there an oil sheen in the stormwater discharge? YES 60)
9. Other Obvious Indicators of Stormwater Pollution:
List and describe:
}74 4,51e A 04- :%4-Gn.h —:iiz- I i5 9. Z
NOTE: Low clarity, high solids and/or the presence of foam or oil sheens may be
indicative of pollutant exposure. These conditions may warrant further
investigation.
11/17/97
r.