NCG140081_MONITORING INFO_20190203

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STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
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DOC TYPE
El HISTORICAL FILE
Q!, MONITORING REPORTS
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DOC DATE
❑
YYYYMMDD

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
/ Orig — State
CERTIFICATE OF COVERAGE NO. NCG14 008 1 SAMPLE COLLECTION YEAR: 2019 0 Copy— State
FACILITY NAME: Chandler Concrete Piedmont - Reidsville #104 SAMPLING PERIOD: ®July -December ❑ January -June 0 Copy— Plant
PERSON COLLECTING SAMPLES: Philip Motsinger COUNTY Rockingham 0 Capy - File
CERTIFIED LABORATORY:Pace Analytical Lab #633 PHONE NO. [phone]
OPTIONAL INFO: ADD TO LISTSERVE? DYES ®NO EMAIL: _
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA [--]Trout ®Other: WS-1111 NSW
Part A: Stormwater Monitoring Requirements
Date Sample
Collected
pH
TS5
Total
In Tier 2
# of Months in
Outfall No.
mm dd rOR
( / /Y
(Standard Units)
(mg/L]
Rainfall a
Monthly Monitoring?
Tier 2
NO FLOW)'
(in)
IY/n)
Sampling
-
-
6-9Z
1002,3
-
-
-
1
NO FLOW
I
N
N/A
No Discharge Observed during this
period -
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 tRM), 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 DEMLR 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 saltwater
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 DEMLR, if the permittee cannot obtain a Summer 7Q10 flow for the receiving waters at the
discharge location, the permittee shall notify DEMLR, and the DEMLR Regional Office may require an annual flow report on a case -by -case basis.
FEe o 3 2019
Permit Date: 8/1/2017-06/30/2022
D SECTlpA • Last Revised 07/27/17
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.
Non -Polar Oil &
pH
Grease using
Total Suspended
Event
Total
New Motor Oil
In Tier 2
tt of Months in
Outfall
Date Sample
{Standard
method
Solids
Duration
Rainfall'
usage '
Monthly
Tier 2
No.
Collected
Units)
1664{mg/L) EM
(mg/L)
(minutes)
(in)
{gal/month)
Monitoring?
Sampling2
jmo/dd/yr)1
(y/n)
6-92
1S2
1002,a
N/A
I—
i1�
*Vehicle Maintenance Not Performed at this Locatio
zv
HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES AT ANY ONE OUTFALL (INCLUDING VEHICLE MAINTENANCE)? YES ❑ NO FTJ
HAVE YOU CONTACTED THE REGION? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail Orieinal and one coov of this DMR (includine all "No Flow" & "No Discharge" resorts) within 30 days of receipt of sample (or 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. I am aware that
there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
re of Permittee)
/ Z 7 IZA
(Date) /
Permit Date: 8/1/2017- 6/30/2022 Last Revised 7/27/18
Page 2 of 2

PROCESS WASTEWATER — Quarterly Discharge Monitoring Report
GENERAL PERMIT No. NCG140000
CERTIFICATE OF COVERAGE No. NCG14 0 0 8 1
FACILITY NAME: Chandler Concrete Piedmont - Reidsville Pit #104
PERSON COLLECTING SAMPLES:
CERTIFIED LABORATORY:Pace Analytical Lab #633��; don
LIMIT VIOLATIONS? YES ❑ NO ® FEB iV
r� g 201g
3c, v J '" L F1
Part A: Wastewater Monitoring Requirements WR SEC7— n.S
4 QTR
Orig — State
0 Copy - State
0 Copy - Plant
0 Copy - File
SAMPLE COLLECTION YEAR: 2019
SAMPLE QUARTER: ❑Jan -March ❑April -June ❑Jul -Sept ®Oct -Dec
COUNTY: ROCKINGHAM
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HOW ❑PNA ❑Trout ®Other: WS-III, NSW
OPTIONAL INFO:
Non -Polar
Date Sample
Type of Wastewater
Total Suspended
Settleable
Oil & Grease
Discharge
Total Flow
Outfall No.
Collected'
{VE, RM, MD)
n
(standard)
Solids
Solids
using method
Duration
7
{gallons/day}
(mm/dd/yr)
(mg/L)
(mL/L)
16545GT--HEM6
{minutes)
(mg/L)
-
-
6-93•4
303,5
53
(15)6
-
-
2
10/17/19
VE RM MD
7.8
4.5
ND
N/A
60
N/A
3
10/17/19
VE RM MD
8.1
2.6
ND
N/A
45
N/A
Discharge was result of rain event. -
' 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.
'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 DEMLR 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.
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 DEMLR. If the permittee cannot obtain a Summer 7Q10 flow for the receiving waters at the
discharge location, the permittee shall notify DEMLR, and the DEMLR Regional Office may require an annual flow report on a case -by -case basis.
Permit Date: 8/1/2017-06/30/2022 Last Revised 07/27/17
Page 1 of 2

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 Resources
Attn: DWR 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 gatherin 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 fg�ubmitting false information, including the possibility of fines and imprisonment for knowing violations."
(Signature of Pe
Permit Date:8/1/2017-06/30/2022
1z-7 O
(Da e)
Last Revised 07/27/17
Page 2 of 2