NCG140266 DMR SW (8)

STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140266
FACILITY NAME: Thomas Concrete of Carolina -Morrisville Plant_
PERSON COLLECTING SAMPLES Susan Bost ian
CERTIFIED LABORATORY ESC Lab # ENV 375
Lab #
OPTIONAL INFO: December Monitoring Event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2015
SAMPLING PERIOD: Z July -December ❑ January -June
COUNTY Wake
PHONE NO. [phone]
ADD TO LISTSERVE? ❑YES ®NO EMAIL:
DISCHARGING TO CLASS: ❑SA ❑HQW ❑PNA ❑Trout ®Other
Date Sample
Collected,
Outfall No.
(mo/dd/yr OR
NO FLOW)
pH
=_ (Standard
Units)
TSS Event
FOuration °&
(mg/L) r
Total R
Rainfall°; ° „
- In Tier 2 9
Monthly # of Months m Tier ,
Monitor n 7 z.
g 2 Sampling
23
`; 100
-
€;
001,
12/17/15
6.27
5.28
60
1.25
n
NA
002
12/17/15
10.31
111
60
1.25
Y
12
003
12/17/15
8.61
75.3
60
1.25
Y
12
CE
RAL FILES
MOK
SECTION
ii 14u rwvv or rvu rw UK)UNHrcoc, Inter ,vu �uor NV U1!)LHAK6t" for each outtall 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/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
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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
Collected1
(mo/dd/yr)
PH TPH using method Total Suspended Event Total New Motor Oil In Tier # of Months
o Monthly
(Standard 1664A SGT -HEM Solids Duration Rainfall Usage in Tier 2
Units) (mg/L) (mg/L) (minutes) (in) (gal/month) Monitoring? Sampling2
(y/n)
6-92 152 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 Orieinal and one coov of this DMR (includine all "No Flow' & "No Discharee" reports) within
in case of "No Flow") to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
"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)
1/31/2016
(Date)
Permit Date: 7/1/2011-60/30/2015 Last Revised 7/13/11
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