NCG200522_MONITORING INFO_20190916

MAD
STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
V D 5a
DOC TYPE
❑ HISTORICAL FILE
❑X MONITORING REPORTS
DOC DATE
❑ a 00 D
YYYYMMDD

� iec
J. Claiborne Thornton, III, PE
.Jason K. Winningham, PE
Graham P. McRedmond, PE
Industrial Environmental Consultants, LLC
2603 Fessey Park Road • PO Box 40066
Nashville, Tennessee 37204
[phone]
Website: ieenashville.com
Environmental Specialist:
Daniel M. Prebonick
W.C. Barron
September 3, 2019 REGENED
5EP 16 35
L
Division of Water Resources CENTRA
LES
Attn: DWR Central Files pWR SECTION
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Semi -Annual Stormwater Discharge Monitoring Report
Carolina Metals Group, Dallas, NC—NCG20
Dear North Carolina Division of Water Resources,
Enclosed please find the Semi-annual Stormwater Discharge Monitoring Report (DMR) for
Carolina Metals Group, Dallas, NC facility under the North Carolina DEMLR General Permit
No. NCG20. The facility had exceedance of the benchmark criteria for copper, lead, and zinc at
very low levels. A benchmark evaluation report has been prepared and the facility is reviewing
actions for bringing the concentrations of these parameters below the benchmark criteria. If you
have any questions or require additional information about the certification, please do not
hesitate to contact me at 615-730-5059.
Sincerely,
Industrial Environmental Consultants, LLC
J " _ 1^
Jason K. Winningham, P.E.
JKW/ph/19030
Enclosure
cc: Matt Lambert, Carolina Metals Group

Semi-annual Stormwater Discharge Monitoring Report (DMR)
for North Carolina DEMLR General Permit No. 14CG200000 — Scrap Metal Recycling
Date submitted V11012019
CERTIFICATE OF COVERAGE NO. NCG200
FACILITY NAME Carolina Metals Group
COUNTY Gaston
PERSON COLLECTING SAMPLES Matt Lambert
LABORATORY Test America Lab Cert. p 387
Comments on sample collection or analysis:
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2019
SAMPLE PERIOD ❑ Jan -June ® July -Dec
or ❑ Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
[]Zero -flow [_]Water Supply [:]SA
❑Saltwater ❑Other
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
No discharge this period?z
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches'
Total Suspended
Solids
Chemical Oxygen
Demand
Non -polar oil & grease
EPA Method 1664
(SGT-HEM)
Copper,
Total
Lead,
Total
Zinc,
Total
Benchmarks =_>
-
-
100 mg/L or
50 mg/L4
120 mg/L
15 mg/L
0.010 mg/L or
0.005 mg/Ls
0.075 mg/L or
0.210 mg/LS
0.126 mg/L or
0.090 mg/Ls
001
07/31/2019
>0.1
49.8
36.0
ND<4.1
0.101
0.278
1.44
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
Z For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here.
'The total precipitation must be recorded using data from an on -site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement.
4 See General Permit text, Table 3 or Table 4, identifying protected receiving water classifications where the more protective TSS benchmark applies.
5 Stormwater discharges into receiving waters classified as saltwater are subject to the second listed benchmark.
Note: Results must be reported in numerical format. For example, do not report Below Detection Limit, BDL, <PQL, Non -detect, ND, or other similar non -
numerical format. When results are below the applicable limits, they must be reported in the format, "<XX ma/L", where XX is the numerical value of the
detection limit, reporting limit, quantitation limit, etc. in mg/L.
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.
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
- --- Permit Date: 02/02/2015=12/31/2019 - - - - - -- - — - - - - - _ - - - -- --- -- -�- - - '_'=-=SWU-256,-Iasi revised 1/28/2015
- - - - - - Page 1 of 2

❑ No discharge this period?z
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches'
Non -polar O&G by EPA
1664 (SGT-HEM)
Total Suspended Solids
Benchmarks =__>
-
-
15 mg/L
100 mg/L or 50 mg/L4
001
7-31-2019
>0.1"
0.1
49.8
Footnotes from Part A also apply to this Part B
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.
FOR PART A AND PART B MONITORING RESULTS:
• A SINGLE BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS.
2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER AT THE SAME OUTFALL TRIGGER TIER 2 REQUIREMENTS.
TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDANCES FOR THE SAME PARAMETER AT ANYONE OUTFALL? YES ❑ NO
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE AS REQUIRED BY THE PERMIT? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original 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 Resources
Attn: DWR 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."
Permittee)
, /o
(Date)
Permit Date: 02/02/2015-12/31/2019 - — - - - - -- _ - - - - -- _ - - - -- - - - SWU-256, last revised 1/28/2015.
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