NCG210472_DMR_20200630

enviva
Enviva Pellets Hamlet, LLC
1125 North NC Highway 177
Hamlet, NC 28345 USA
[phone]
fax [phone]
w .envivabiomassxom
06/30/2020
Division of Water Resources
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: North Carolina General Stormwater Permit NCG2100 r ��
Certificate of Coverage No. NCG210472
Discharge Monitoring Report (DMR) JUL ( 6
Enviva Pellets Hamlet, LLC
Hamlet, North Carolina 28345
DWR SECTION
Dear Sir/Madam:
On June 16, 2020, Enviva Pellets Hamlet, LLC submitted an original version of the Discharge
Monitoring Report (DMR) with a monthly sampling date error in the attached documentation. The
correct "Date Sample Collected" should read 06/03/2020 and not 05/05/2020.
In accordance with North Carolina General Stormwater Permit NCG210000, Certificate of Coverage
No. NCG210472, Enviva Pellets Hamlet, LLC submits the attached DMR for Outfall 001 at its Hamlet,
North Carolina facility (see Attachment 1). This DMR covers the monitoring period of January 1', 2020
through June 30th, 2020.
If you have any questions regarding the attached report or have any additional questions, please feel free
to contact Mat Riemenschneider, Hamlet EHS Manager at [phone].
Mat Riemenschneider
Hamlet EHS Manager
Attachments
RECEIVED
JUL 0 6 Z020
pWR SECTION

Semi-annual Stormwater Discharge Monitoring; Report
for North Carolina DEMLR General Permit No. NCG210000
Date submitted 06/30/2020
CERTIFICATE OF COVERAGE NO. NCG21 0 4 7 2
FACILITY NAME Enviva Pellets Hamlet, LLC
COUNTY Richmond
PERSON COLLECTING SAMPLES Mat Riemenschneider
LABORATORY N/A Lab Cert. N
Comments on sample collection or analysis:
SAMPLE COLLECTION YEAR 2020
SAMPLE PERIOD 0 Jan -June ❑ July -Dec
or [:]Monthly' (month)
DISCHARGING TO CLASS ❑ORW ❑HQW [:]Trout❑PNA
[]zero -flow [:]WaterSupply ❑SA
[_]Other
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
Part A: Stormwater Benchmarks and Monitoring Results (Monitoring is required only if the facility stores exposed accumulations of sawdust, wood chips,
bark, mulch, or other similar material on site for longer than seven (7) days.)
0 No discharge this period?2
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches'
Chemical Oxygen Demand
Total Suspended Solids
Benchmarks =__>
-
-
120 mg/L
100 mg/L or 50 mg/L
001
06/03/2020
0.50
No Flow
No Flow
RECEIVED
1 Monthly sampling (instead of semi-annual) must beg n with the second consecutive benchmark exceedance for the same parameter at the same outfall.
'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 3, 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 mg/L", where XX is the numerical value of the
detection limit, reporting 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 text.
Permit Date: 8/1/2018-7/31/2023 SWU-245, last revised 8/6/2018
Page 1 of 2

Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
❑E No discharge this period?2
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Non -polar O&G by EPA
1664 (SGT-HEM)
Total Suspended Solids
Benchmarks =__>
-
-
15 mg/L
100 mg/L or 50 mg/L
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 ANYONE OUTFALL? YES ❑ NO ❑
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original and one
in the case of "No Discho
of this DMR, including all "No
Division of Water Resources
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
to:
within 30
f the lab results (or at end
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
am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
OW30/2020
(Signature of Permittee)
Permit Date:8/1/2018-7/31/2023
(Date)
SWU-245, last revised 8/6/2018
Page 2 of 2