NCG080814_DMR_20210601

Semi-annual Stormwater Discharge Monitoring,Report
for North Carolina Division'of Energy, Mineral and Land Resources General Permit No. NCGO80000
Date submitted / l FIF Z I
CERTIFICATE OF COVERAGE NO. NCG08 0 8 1 4 SAMPLE COLLECTION YEAR 2021
FACILITY NAME CATS Bus Maintenance Operations Facility RECENEDAMPLE PERIOD ❑ Jan -June ❑ July -Dec
COUNTY Mecklenburg or ❑� Monthly' May month
PERSON COLLECTING SAMPLES Alex Hattaway � 2l}Z� DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
LABORATORY Char'otte-MeckSenburg LabormoryServices Lab Cert. # 192 ❑Zero -flow [:]WaterSupply [:]SA
Comments on sample collection or analysis: CENTRAL F�LES DOther class c
Rainfall measurements collected from USGS Rain Gage CRN-60 DWR SECTION
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? 0 yes ❑ no (if yes, 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
003
05/03/21
0.50
<5.0
18.8
2,650
' Monthly sampling (instead of semi-annual) must begin with the second consecutive benchmark exceedance for the same parameter at the same outfall.
2 For sampling periods with no discharge at any single outfall, you must still submit this discharge monitoring report with a checkmark here.
3 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, 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. Conversely, where fecal col iform 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
Page 1 of 2

Part B: Oil/water Separators and Secondary Containment Areas at Petroleum Bulk Stations and Terminals (if applicable) ❑ No discharge this period1
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 Umit .
_
_
_
100 orSO°
6.0 = 9.0
15
Parametgr Code
-
` 46529
C000
0040ff
00S52
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 Z, Tier 2, or rer 3 responses. See General Permit text.
FOR PART AND PARTS MONITORING RESULTS:
• A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART 11 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 E3
IF YES, HAVE YOU CONTACTED THE DEMLR REGIONAL OFFICE? YES r1NO E3
REGIONAL OFFICE CONTACT NAME:
Mail an original coot/ 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."
Signat a of Permittei Date
Permit Date:11/1/2018-5/31/2021 SWU-248, last revised 11/1/2018
Page 2 of 2