NCG100010_DMR_20201210

Stormwrater Discharge Monitoring Report
for North Carolina Division of Energy, Mineral and Land Resources General Permit No. NCG100000
CERTIFICATE OF COVERAGE NO. NCG10 O 0 1 0
FACILITY NAME Robert's Engines, Inc.
COUNTY Wilson
PERSON COLLECTING SAMPLES Matthew Barnes
LABORATORY TesWmerica
Date submitted
Lab Cert. # 12028
Comments on sample collection or analysis:
SAMPLE COLLECTION YEAR 2020
SAMPLE PERIOD ❑ Jan -June R July -Dec
or ❑ Monthly" (month)
RECEIVE®ISCHARGINGTO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
—SEC 21 ❑Zero -flow [:]Water Supply ❑SA
2020 MOther B; sw
N/AOENTRAL FILES
R SECTION
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
Part A: Stormwater Benchmarks and Monitoring Results
Total event rainfalls 2.5Inch or ❑ No discharge this period?'
Outfall
No.
-
Date
Sample
Collected,
mo/dd/year
PH,
Standard
Units
Total Suspended
Solids (T55),
mg/L
Non -polar
O&G/TPH
(Method 1664
SGT-HEM), mg/L
Ethylene Glycol,
mg/L
Lead,
Recoverable ,
mg/L
Total Toxic
3
Organics ,
m g/ L
New Motor or
Hydraulic Oil
Usage,
gal/mo
Benchmark
-
6.0 — 9.01
100 or 502
15
81000
(Tiers 2 and 3)
0.075
1.0
-
PammeterCode_
-
00400
C0530
00552
77023
01051
78141
NCOIL
O0i _
11/12/2020
7.1 _
1 15
-1.4
1 <12
_ 0.0026
Exempt
Note: If you report a sampled value in excess of the benchmark value, or outside the benchmark range for pH, you must implement Tier 1 or Tier 2 responses in the General
Permit.
'If pH values outside this range are recorded in sampled stormwater discharges, but ambient precipitation pH levels are lower, then the lower threshold of this benchmark
range is the pH of the precipitation (within instrument accuracy) instead of 6 S.U. Readings from an on -site or local rain gauge (or local precipitation data) must be documented
to demonstrate background concentrations were below the benchmark pH range of 6-9.
'See General Permit Table 1, identifying the especially sensitive receiving waters classifications where the more protective benchmark applies.
3For purposes of this permit the definition of Total Tor.c Organics is that list as stated in Appendix D, Table II of Chapter 40 Code of Federal Regulations (CFR) Part 122.
4Monthly sampling (instead of semi-annual) must begiaa with the second consecutive benchmark exceedance for the same parameter at the same outfall.
'Total precipitation must be recorded using data frorn in on -site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement.
'For sampling periods with no discharge at any single cutfall, you must still submit this discharge monitoring report with a checkmark here.
Permit Date: 11/1/2018-05/31/2021
Form SWU-251, Last Revised 11/1/2018
Page 1 of 2

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Facilities that incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may request that DEMLR waive monitoring of total toxic organics. The solvent
management plan shall include a list of the total toxic organic compounds used along with other requirements listed in the General Permit. For those facilities allowed such a waiver,
the discharger shall sign the following certification statement:
Solvent Management Plan Certification Statement
"Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit monitoring requirement for total toxic organics (TTO), 1
certify that to the best of my knowledge and belief, no dumping of concentrated toxic organics into the stormwater or areas which are exposed to rainfall or
stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing all the provisions of the solvent
management plan included in the Stormwater Pollution Prevention Plan."
��H�2✓ .8142W63
Name (Print name)
WeS1 D &-W7
Title (Print title)
Signature Date
Mail Original to:
Division of Water Quality
Attn: Central Files
1617 Mail Service
Center
North Carolina 27699-1617
"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."
Signature of Permittee
Permit Date: 11/1/2018-05/31/2021
Date
Form SWU-251, Last Revised 11/1/2018
Page 2 of 2

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