NCG080879_DMR_20210601

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Energy, Mineral and Land Resources General rPermit No. NCG080000
Date submitted jg/ I '
CERTIFICATE OF COVERAGE NO. NCG08 0 8 7 9
FACILITY NAME City of Charlotte Light Vehicle Maintenance Facility
COUNTY Mecklenburg
PERSON COLLECTING SAMPLES David Ferguson
RECEIVED
LABORATORY Charlotte -Mecklenburg L barelbry Sel—es Lab Cert. # 192 i I I A I 14 2021
Comments on sample collection or analysis:
Rainfall measurements collected from USGS Rain Gage CRN-03 CENTRAL FILES
oWR SECTION
SAMPLE COLLECTION FEAR 2021
SAMPLE PERIOD❑ Jan -June ❑ July -Dec
or ❑ Monthly' (month}
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
! []Zero -flow [:]WaterSupply [:]SA
*Other Class C
PLEASE REMEMBER TO SIGN ON THE REVERSE 3
Did this facility perform Vehicle Maintenance Activities using more than 55 gallons of new oil per month? ❑� yes ❑ no (ifyes, 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-holur rainfall amount,
Inches'
Non -Polar Oil & Grease
mg/L
Total Suspended Solids,
mg/L
New Motor or Hydraulic Oil Usage,
gal/mon
Benchmarks
_
-
15
100 or 504
-
Parameter Code
-
46529
00552
C0530
NCOIL
001
05/03/21
0.42
<5.0
3,200
700
' Monthly sampling (instead of semi-annual) must begin 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 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, lion -detect, ND, or other similar non -
numerical format. When results are below the applicable limits, they must be reported in the format `r<XX m 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 SWU-248, last revised 11/1/2018
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Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable) No discharge this periodz
Outfall
No.
Date Sample
'Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Sample Collected'
mo/dd/yr
Total Suspended
Solids,
mg/L
pH,
Standard units
Non -Polar Oil &
Grease,
mg/L
Permit Limit
_
-
100 or SO4
6.0 9.0
1S .
Parameter. Code
-
46529
-
COS30
00400
- 005S2
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 rer 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 R SECTION B.
• 2 EXCEEDANCES IN A ROW FOR THE SAME PARAMETER ATTHE 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 ONE OUTFALL? YES [] NO E]
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES ® NO
REGIONAL OFFICE CONTACT NAME:
motion original coov of this DMR including all "No 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 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."
of
Date
Permit Date:11/1/2018-5/31/2021 SWU-248, last revised 11/1/2018
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