NCG210252_DMR_20210121

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina DEMLR General Permit No. NCG210000
Date submitted
CERTIFICATE OF COVERAGE NO. NCG210 2 5 2 SAMPLE COLLECTION YEAR 2020
FACILITY NAME Lampe & Malphrus Lumber Co-10M Street Sawmill SAMPLE PERIOD ❑■ Jan -June ❑ July -Dec
COUNTY Johnston or ❑ Monthly' (month)
PERSON COLLECTING SAMPLES Patrick Fallon (Leaf Environmental) DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY ENCo Lab Cert. # NC5e1 ❑Zero -flow ❑■ Water Supply ❑SA
Comments on sample collection or analysis: QOther NSW
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.)
❑■ No discharge this period?z FEB 01 2021
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/O
001
4123/20
0.11
850
120
002
4/23/20
0.11
230
62
003
4/23/20
0.11
No Flow
No Flow
' 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 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.
* No discharge this period?'
Date Sample
24-hour rainfall
Outfall No.
Collected'
amount,
Non -polar O&G by EPA
(mo/dd/yr)
Inchee
1664 (SGT-HEM)
Total Suspended Solids
Benchmarks =_>
-
-
15 mg/L
100 mg/L or 50 mg/0
001
4/23/20
0.11
27.9
120
002
4/23/20
0.11
6.49
62
003
4/23/20
1 0.11
No Flow
No Flow
Footnotes from Part A also apply to this Part B
Note: /f 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 FORTH E 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 0
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 Discha
this DMR, including all "No Dischar
Attn: DWR Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
to:
within 30 days of receipt of the lab results (or at end of monitoring
YOU MUST SIGN THIS CERTIFICATION FOR ANY INFORMATION REPORTED:
"I certify, under penalty of taw, 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."
(Signature of Permittee)
Permit Date: 8/1/2018-7/31/2023
/JI -ZI —2D7.1
(Date)
SWU-245, last revised 8/6/2018
Page 2 of 2