NCG080814_DMR_20210304

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Energy, Mineral and Land Resources General Permit No. NCG080000
Date submitted 03-0M -ZI
CERTIFICATE OF COVERAGE NO. NCG08 0 H 1 4
FACILITY NAME CATS Bus Maintenance Operations Facility F e��
COUNTY Mecklenburg REc
7
PERSON COLLECTING SAMPLES Alex Hattaway
LABORATORY Laboratorys-M s Lab Cert. ff 192
Comments on sample collection or analysis:
Rainfall measurements collected from USGS Rain Gage CRN-60
SAMPLE COLLECTION YEAR 2021
SAMPLE PERIOD ❑■ Jan -June ❑ July -Dec
or [:]Monthly' (monthl
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow [:]Watersupply [:]SA
❑■ Other class C
PLEASE REMEMBER TO SIGN ON THE REVERSE 4
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,
mg/L
New Motor or Hydraulic Oil Usage,
gal/mon
Benchmarks
_
-
15
100 or 504
Parameter Code
-
46529
00552
C0530
NCOIL
001
02/11 /21
0.48
<5.0
65
2,650
002
02/11/21
0.48
15
12
2,650
003
02/11/21
0.48
<5.0
1 130
2,650
' 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.
4 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 ms/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
Pagel of 2

t
r

Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (If applicable) ❑ No discharge this period'
Outfall
No.
Permit Limit
ParameterCode
Date Sample
Collected'
(mo/dd/yr)
-
-
24-hour rainfall
amount,
inches'
46529
Sample Collected'
mo/dd/yr
-
Total Suspended
Solids,
mg/L
100 or 50°
pH,
Standard units
6.0-9.0
Non -Polar Oil &
Grease,
mg/L
15
CO530
00400
00552
Footnotes from Part A also apply to this Part B
Note: If you reporta sample value in excess of the benchmark, you must implement Tier 1, Tier 1, or Tier 3 responses. See General Permit text.
FOR PART AAND 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 OUTFACE TRIGGER TIER 2 REQUIREMENTS. SEE PERMIT PART II SECTION B.
• TFACE' YES ❑ NO ❑'
TIER 3: HAS YOUR FACILITY HAD 4 OR MORE BENCHMARK EXCEEDENCES FOR THE SAME PARAMETER AT ANYONE OU
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an on inal COPY Of this AMR includin all "No Discharge" reports, within 30 darig of receipt of the lab results for at end of monitoring periodin the
case of "No Discharge" reports) to:
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-2617
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
persons who manage the system, or
assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person 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."
G -1
Of
, /-�� 7) G.� I
Date
SW U-248, last revised 11/1/2018
Permit Date: 11/1/2018-5/31/2021 Page 2 of 2

_
'r _
.. is �•- c
,._ -_
'- _ �
is -
- -
?- -• .i.
-