NCG080614 DMR SW (2)

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG080000
Date submitted August 21, 2015
CERTIFICATE OF COVERAGE NO.W,4. G'08
FACILITY NAME Rex Oil
COUNTY Davidson
PERSON COLLECTING SAMPLES Lynne Hays
LABORATORY R&A Lab Cert. # 34 Comments on sample collection or
analysis:
Part A: Vehicle Maintenance Areas Monitoring Requirements
SAMPLE COLLECTION YEAR 2015
SAMPLE PERIOD Jan -June x July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply OSA
RECEIVED ❑Other
AUG 2 4 2015 PLEASE REMEMBER TO SIGN ON THE REVERSE 4
CENTRAL FILES ❑ No discharge this period'
DWR SECTION
Outfall Date
'No.- j,Sample Collected,
.. mo/dd/yr
00530,
00400
00556--,_
,00400
Total Suspended
Solids,_ mg/L'
pH,
Standard units =
Non -Polar -Oil and Grease/TP,H EPA
Method 1664 (SGOT -HEM), mg/L
New Motor Oil Usage,
Annual average gal/mo
Benchmark = - -
50 or 100 seb'permit
Within 6.0— 9.0
SDO #1
08/06/15
No Flow
No Flow
No Flow
SDO #2
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month?
(if yes, report your analytical results in the table immediately below)
Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals
yes _no
Outfall-'-
No.-
" Date
Sample Collected,
mo/4d/yr
00556
00530
,00400
Non -Polar Oil and•Grease/TPH EPA Method -
1664 (SGT-HEM),`mg/L-°
Total Suspended Solids,,pH,
mg/L,
Standard units°
,Permit Limit
-
-_ 15, -
50 or 100,see�permit
SDO #1
08/06/15
No Flow
No Flow
No Flow
SDO #2
08/06/15
10.3
489
8.8
' For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here.
SWU-250 last revised October 25, 2012
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STORM WENT CHARACTERISTICS:
Date 08/06/15 (first event sampled)
Total Event Precipitation (inches): .13
Date (list each additional event sampled this reporting period, and rainfall amount)
Total Event Precipitation (inches):
Note: If you report a sample value in excess of the benchmark, you must implement Tier 1, Tier 2, or Tier 3 responses. See General Permit text.
FOR PART A AND PART B MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANY ONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an oriainal and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results (or at end of monitoring period in
the case of "No Discharge" reports) 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."
Lynne Hays for Rex OilCompany
(Signature of Permittee)
August 21, 2015
(Date)
Additional copies of this form may be downloaded at: http://portal.ncdenr.org/web/wq/ws/su/npdessw#tab-4
SWU-250
last revised October 25, 2012
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