NCG030530_DMR_20200814

Semi-annual Stormwater Di large Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted:August 14, 2020
CERTIFICATE OF COVERAGE NO. NCG03030530 SAMPLE COLLECTION YEAR 2020
FACILITY NAME MGM BRAKES SAMPLE PERIOD ❑Jan-June ®July-Dec
COUNTY CHEROKEE or ❑ Monthly1 (month)
PERSON COLLECTING SAMPLES: MICHAEL CARTER DISCHARGING TO CLASS ❑ORW ❑HQW ['Trout ❑PNA
LABORATORY: ENVIRONMENTAL INC. Lab Cert.#57 ❑Zero-flow ❑Water Supply ❑SA
Comments on sample collection or analysis: ['Other
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 -)
Part A: Stormwater Benchmarks and Monitoring Results
❑ No discharge this period?2
Non-Polar O&G/
Date Sample 24-hour rainfall pH, Total Toxic
Outfall No. Collected) amount, Total Suspended Solids Standard units Copper Lead Zinc Total Petroleum Organics
(mo/dd/yr) Inches3 Hydrocarbons
Benchmarks===> _ - 100 mg/L or 50 mg/L4 6.0—9.0 0.010 mg/L 0.075 mg/L 0.126 mg/L 15 mg/L 1 mg/L
4 07/30/2020 0.10" 9.3 mg/I 7.17 <0.005 <0.005 0.1060 <5 mg/I NA
5 07/30/2020 0.10" 8.0 mg/I 6.79 <0.005 <0.005 0.0618 <5 mg/I NA
6 07/30/2020 0.10" 12.4 mg/I 5.81 <0.005 <0.005 0.1040 <5 mg/I NA
1 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.
3The 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,Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
5 Total Toxic Organics sampling is applicable only for those facilities which perform metal finishing operations, manufacture semiconductors, manufacture
electronic crystals,or manufacture cathode ray tubes. For purposes of this permit the definition of Total Toxic Organics is that definition contained in the EPA
Effluent Guidelines for the facility subject to the requirement to sample(for metal finishing use the definition as found in 40 CFR 433.11;for semiconductor
manufacture use the definition as found in 40 CFR 469.12;for electronic crystal manufacture use the definition as found in 40 CFR 469.22; and for cathode ray
tube manufacture use the definition found in 40 CFR 469.31).
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

Facilities tnat incorporate a solvent management plan into the Stormwater Pollution Prevention Plan may so certify, and the requirement for TTO monitoring
may be waived. The solvent management plan shall include a list of the total toxic organic compounds used and the other elements listed in the General
Permit. For those facilities electing to employ the TTO monitoring waiver,the discharger shall sign the following 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),I 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 the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
Michael Carter
Name(Print name)
Quality and Environmental Systems Manager/ORC
Title(Prin ti e)
xi.........„....._ o8//y/-70
(Signature) (Date)
Note: Results must be reported in numerical format. 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.
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging> 55 gal of new oil per month.
❑ No discharge this period?2
Date Sample 24-hour rainfall
Outfall No. I
Collected amount, Non-polar O&G/TPH by
(mo/dd/yr) Inches3 EPA 1664(SGT-HEM) Total Suspended Solids pH
Benchmarks===> _ - 15 mg/L 100 mg/L or 50 mg/L* 6.0—9.0 SU
Footnotes from Part A also apply to this Part B
*See General Permit text,Table 5,identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
Permit Date:11/1/2012-10/31/2017 SWU-245,last revised 10/25/2012
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Note: If) sport a sample value in excess of the benchmark, you must imp _ ,nt 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 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 ANY ONE OUTFALL? YES❑ NOD
IF YES,HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES❑ NOD
REGIONAL OFFICE CONTACT NAME:
Mail an original and one copy of this DMR,including all"No Discharge"reports, within 30 days of receipt of the lab results(or 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. I
am aware that there are significant penalties for submitting false information,including the possibility of fines and imprisonment for knowing violations."
1444-jj 02 /a te
(Signature of Permittee) (Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245,last revised 10/25/2012
Page 3 of 3

MGM Brakes MGM
` Al Division of Indian Head Industries,Inc
P.O. Box 70-Park Avenue-Murphy, NC 28906
Telephone[phone] FAX [phone]
August 14, 2020 AUG 2 5 2020
Central Files 'i+ ��- FILEC
f�W S`CTIOP1
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Stormwater General Permit No. I'4CG030000
Certificate of Coverage No. NCG030530
To Whom It May Concern,
Enclosed, you will find duplicate signed copies of our Analytical Monitoring Lab
Results and Qualitative Monitoring Results for the SECOND half of calendar
year 2020. Also attached are the analytical analysis results of our stormwater
discharge at permit described collection/discharge points (Pace Project
Number 92489011). TSS, oils and grease was analyzed by Environmental Inc.
The following attachments (2 copies of each) are included in this submittal:
• Semi-Annual Stormwater Discharge Monitoring
Report (Form # SWU-245) for Outfall #'s 4, 5, and 6.
• Stormwater Discharge Outfall (SDO) Qualitative Monitoring
Report (Form # SWU-242) for Outfall #'s 1, 2, 3, 4, 5, and 6.
• Analytical results from Pace Analytical and Environmental Inc.
• Chain of Custody/Analytical Request Document
If you have any further questions, please contact me at [phone] ext.
2520.
Sincer ly,
Michael Carter
Quality and Environmental Systems Manager/ ORC