NCG140218 DMR SW (4)

y STORMWATER DISCHARGE OUTFALL (SDO) - Semi -Annual MONITORING FORM
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140218
FACILITY NAME: Thomas Concrete of Carolina -Durham Plant
PERSON COLLECTING SAMPLES Susan Bostian
CERTIFIED LABORATORY ESC Lab # ENV 375_
Lab #
OPTIONAL INFO: September Monitoring event
Part A: Stormwater Monitoring Requirements
SAMPLE COLLECTION YEAR: 2014
SAMPLING PERIOD: ® July -December ❑ January -June
COUNTY Durham
PHONE NO. [phone]
ADD TO LISTSERVE? []YES ®NO EMAIL:
DISCHARGING TO CLASS: ®SA ❑HQW ❑PNA ❑Trout ❑Other
"
Date Sample
Collected
pH °� TSS
Tier 2
Event Total
�: a Monthly
#:of Months in Tier
Outfall,No. ,
v (mo/dc!/yr OR
(Standard,
(mg/Lf
Duration Rainfall, -
Monitoring)
�,o
2 Sampling ' '
1"Units)
NO FLOW)"
(minutes) (in)
(Y/n)
_
_
b=9Z 1002 3
, _ P -.,
a •,
001
09/08/2014
18.56 17.400
45 1 y
7
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
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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
Collected
(mo/dd/yr)1
pH TPH using method Total Suspended Event Total New Motor Oil In Tier'I2
a l
(Standard 1664A SGT -HEM Solids Duration Rainfall Month
Usage I
Monitoring?
Units) (mg/L) (mg/L) (minutes) (in) (gal/month) (y/n)
# of Months
y in Tier 2
2
Sampling
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:
and one coov of this
in case of "No Flow") to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
hin 30 days of recei
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
assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage t
those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate,
am aware that th are si nificant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violatior
0 /u;►� 12/29/2014
(Signature of Permittee)
Permit Date: 7/l/2011-60/30/2015
(Date)
signed to
system, or
id complete
11
Revised 7/13/11
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