NCG080936_DMR_20210312

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Energy, Mineral and Land Riesource General Permit No. NCGO80000
Date submitted
CERTIFICATE OF COVERAGE NO. NCG08 0936
FACILITY NAME Trimac Transportation Inc.
COUNTY Forsyth
PERSON COLLECTING SAMPLES Joseph Ryan Williams
LABORATORYPace Analytical Services Lab Cert. # NC #12, #37706
Comments on sample collection or analysis:
Control sample pH is significantly lower than permit range requirments.
The stormwater pH is outside of permit parameters before it falls onsite.
SAMPLE COLLECTION YEAR 2021
SAMPLE PERIOD ® Jan -June ❑ July -Dec
RCC DISCHAERGIor NG TO❑CLASS monthly'
❑ORW ❑HQW []Trout th❑PNA
MAR 22 2021 ❑zero -flow [_]WaterSupply ❑SA
_,EN I tlHL FILES ®Other c - Leak Fork
DWR SECTION PLEASE REMEMBER TO SIGN ON THE REVERSE
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new oil per month? ® yes ❑ no (if ves. complete Part A)
Part A: Vehicle & Equipment Maintenance Areas Monitoring Requirements (If applicable) ❑ No discharge this period'
Outfall No.
Date Sample
Collected' (mo/dd/yr)
24-hour rainfall
amount, Inches'
Non -Polar Oil &
Grease mg/L
Total Suspended
Solids (TSS), mg/L
pH,
Standard units
New Motor or
Hydraulic Oil Usage,
gal/mon
Benchmarks
_
15
100 or 501
6.0 — 9.0
Parameter Code
-
46529
00552
C0530
00400
NCOIL
Rain gauge control
2/11/2021
0.94
_
_
4.6
N/A
Outfall #1
2/11/2021
0.94
< 5
18.8
6.3
79
Outfall #2
2/11/2021
0.94
< 5
1 5.6
1 5.8
79
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
a 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.
'See General Permit text, Table 1, identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
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 me/L", where XX is the numerical value of the
detection limit, reporting limit, etc. in mg/L. Conversely, where fecal coliform results exceed the dilution upper limit, report the result as ">XX".
Permit Date: 11/1/2018-5/31/2021 last revised 1/14/2020
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Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable) ❑ No discharge this period'
Outfall
No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches'
Notes (Optional)
Total Suspended
Solids,
mg/L
pH,
Standard units
Non -Polar Oil &
Grease,
mg/L
Permit Limit
-
100 or 504
6.0 — 9.0
3s
Parameter Code
46529
C0530
00400
00552
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 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 ONEOUTFALL? YES Q NO ❑
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES 0 NO
REGIONAL OFFICE CONTACT NAME: Updated Contact- Zachary Lentz
Note: Mr. Lentz informed us on 9/28/2620 that we could cease the monthly monitoring tiered response for pH because the ambient precipitation is consistently lower than permit benchmark values
and our outfall pH is typically higher than the ambient precipitation. We will utilize the rain gauge (ambient) pH as our low side benchmark value and resume monitoring twice annually as the permit require
as well as include the rain gau e,control with the monitoring.�
Mail an original copy of Xis DMR, including all %o Discharge" reports, within 30 days of receipt of the lab results for 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 personn properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those ons directly respo ible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am are that there are si can penalties for submitting false information, including the possibility of fines 76,?o
imprisonment for knowing violations."
3 / �� -), I
SignaturAof Permittee
Permit Date:ll/l/2018-5/31/2021 last revised 1/14/2020
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