NCG030218_DMR_20210409

G US COMPLIANCE
April 19, 2021
Division of Water Quality
Attn: DWQ Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Stormwater Discharge Monitoring Report -January -March 2021
MMA Manufacturing
305 W. King Street
East Flat Rock, NC 28726
To Whom It May Concern:
Please find the Stormwater Discharge Monitoring Report for Minute Man Anchors, Inc. located
at the address listed above. The facility was able to collect a sample for all parameters in
February and March 2021. The facility has been conducting inspections and sampling various
areas around the property to determine where zinc exceedances have been coming from and
have been working with Shawna Riddle and Isaiah Reed at the regional office to try and
determine next best steps. Facility is continuing to investigate zinc exceedances and trying to
meet benchmark limits.
If you have any questions, please feel free to contact me at your earliest convenience. I can be
reached at [phone] or by email at [e-mail].
Sincerely,
Alexa Rinde
Environmental Specialist II
U.S. Compliance
Enclosures
cc: George Waechter—MMA Manufacturing
RECFIt/ED
M4Y 0 3 2021
CENTRAL FILES
888-897-8681 1 520 Third Street, #100, Excelsior, MN 55331 1 uscompliance.com

RECr-" ,F-D
May 0 3 2021
CEN I itAL FUS
DWR SECiTON
Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted _4/19/2021
CERTIFICATE OF COVERAGE NO. NCG030218
FACILITY NAME MMA Manufacturing
COUNTY Henderson
PERSON COLLECTING SAMPLES George Waechter
LA80RATORYIBS Environmental Services lab Cert. g 275
Comments on sample collection or analysis:
Part A: Stormwater Benchmarks and Monitoring Results
SAMPLE COLLECTION YEAR 2021
SAMPLE PERIOD ® Jan -June ❑ July -Dec
or ® Monthly' March (month)
DISCHARGING TO CLASS ❑ORW ❑HQW ❑Trout ❑PNA
❑Zero -flow ❑Water Supply ❑SA
❑Other
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
n No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches'
Total Suspended Solids
pH,
Standard
units
Copper
Lead
Zinc
Non -Polar O&G/
Total Petroleum
Hydrowrbons
TotalToxic
s
Organic
Benchmarks =__>
-
-
100 mg/L or 50 mg/O
6.0 —9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
15 mg/L
1 mg/L
01
02/11/2021
<2.5
7.7
<0.005
<0.005
0.055
45
N/A
' 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.
3 The total precipitation must be recorded using data from an on -site rain gauge. Unattended sites maybe 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: 31/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 1 of 3

Facilities that 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."
Name (Print name)
Title (Print title)
(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 13: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
❑ No discharge this period?Z
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches3
Non -polar O&G/TPH by
EPA 1664 (SGT-HEM)
Total Suspended Solids
pH
Benchmarks —==>
-
-
1S mg/L
100 mg/L or 50 mg/L*
6.0 — 9.0 SU
N/A
N/A
N/A
N/A
N/A
N/A
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
Page 2 of 3

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.
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 ® NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ® NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an orlginal and one copy of this DMR, including all "No Discharge" reports, within 30 days of receipt of the lab results for at end of monitorina 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:
"1 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 sig 'f cant penalties for submitting false information, including the possibility of fin4and!isonment for knowing violations."
2
(Signature Perm' tee) Date)
Permit Date: 11/1/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 4/19/2021
CERTIFICATE OF COVERAGE NO. NCG030218 SAMPLE COLLECTION YEAR 2021
FACILITY NAME MMA Manufacturing SAMPLE PERIOD ❑ Jan -June ❑ July -Dec
COUNTY Henderson or ® Monthly' January (month)
PERSON COLLECTING SAMPLES George Waechter DISCHARGING TO CLASS ❑ORW ❑HQW []Trout ❑PNA
LABORATORYIBS Environmental Services Lab Cert. # 275 []zero -flow [-]Water Supply [:]SA
Comments on sample collection or analysis: []Other
Part A: Stormwater Benchmarks and Monitoring Results
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
n No discharge this period?'
Outfatl No.
Date Sample
1
Collected
(mo/dd/yr)
24-hour rainfall
amount,
Inches
Total Suspended Solids
pH,
Standard
units
Copper
Lead
Zinc
Non -Polar O&G/
Total Petroleum
Hydrocarbons
Total Toxic
s
Organics
Benchmarks =_>
_
-
200 mg/L or 50 mg/O
6.0 - 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
15 mg/L
1 mg/L
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 that 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 im plementing the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
Name (Print name)
Title (Print title)
(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.
Nate: if you report a sample value in excess of the benchmark, you must implement Tier 1, Trer 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?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches
Non -polar O&G/TPH by
EPA 1664 (SGT-HEM)
Total Suspended Solids
pH
Benchmarks =__>
-
-
15 mg/L
100 mg/L or SO mg/L*
6.0— 9.0 SU
N/A
N/A
N/A
N/A
N/A
N/A
Footnotes from Part A also apply to this Part B
* See General Permit text, Table S, 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
Page 2 of 3

Note: If you report a sample value in excess of the benchmark, you must implement rer 1, Tier Z or Tier 3 responses. See General Permit text.
FOR PART A AND PART B MONITORING RESULTS:
0 A BENCHMARK EXCEEDANCE TRIGGERS TIER 1 REQUIREMENTS. SEE PERMIT PART II SECTION B.
0 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 ❑ NO
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ❑ NO ❑
REGIONAL OFFICE CONTACT NAME:
Mail an original and one cony of this DM2 including all "No Discharae" reports, within 30 days of receipt of the lab results for at end of monitorina 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."
(Signature of Permittee)
Permit Date: 11/1/2012-10/31/2017
( Date)
SWU-245, last revised 10/25/2012
Page 3 of 3

Semi-annual Stormwater Discharge Monitoring Report
for North Carolina Division of Water Quality General Permit No. NCG030000
Date submitted 4/19/2021
CERTIFICATE OF COVERAGE NO. NCG030218 SAMPLE COLLECTION YEAR 2021
FACILITY NAME MMA Manufacturing SAMPLE PERIOD ❑ Jan -June ❑ July -Dec
COUNTY Henderson or ® Monthly' February (month)
PERSON COLLECTING SAMPLES George Waechter DISCHARGING TO CLASS ❑ORW ❑HQW [-]Trout ❑PNA
LABORATORYIBS Environmental Services Lab Cert. # 275 ❑Zero -flow ❑Water Supply []SA
Comments on sample collection or analysis: ❑Other
Part A: Stormwater Benchmarks and Monitoring Results
PLEASE REMEMBER TO SIGN ON PAGES 2 AND/OR 3 4
n No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24hour rainfall
amount,
lnches3
Total Suspended Solids
pH'
Standard
u nits
Copper
Lead
Zinc
Non -Polar O&G/
Total Petroleum
Hydrocarbons
Total Toxic
Organics
Benchmarks =_>
-
-
200 mg/L or 50 mg/L°
6.0 — 9.0
0.007 mg/L
0.03 mg/L
0.067 mg/L
1S mg/L
1 mg/L
01
02/11/2021
0.3
< 5.56
5.76
<0.005
<0.005
0.0919
< 5
N/A
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.
° See General Permit, Table 3 identifying the especially sensitive receiving water classifications where the more protective benchmark applies.
S 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/i/2012-10/31/2017 SWU-245, last revised 10/25/2012
Page i of 3

Facilities that 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
(70), 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 the all the provisions of the
solvent management plan included in the Stormwater Pollution Prevention Plan."
Name (Print name)
Title (Print title)
(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 ma/If 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, Trer 2, or rer 3 responses. See General Permit text.
Part B: Vehicle Maintenance Area Monitoring Results: only for facilities averaging > 55 gal of new oil per month.
(_1 No discharge this period?'
Outfall No.
Date Sample
Collected'
(mo/dd/yr)
24-hour rainfall
amount,
Inches;
Non -polar 0&G/TPH by
EPA 1664 (SGT-HEM)
Total Suspended Solids
pH
Benchmarks == >
-
-
1S mg/L
100 mg/L or 50 mg/L*
6.0 — 9.0 SU
N/A
N/A
N/A
N/A
N/A
N/A
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
Page 2 of 3

Note: If you report a sample value in excess of the benchmark, you must Implement Tier 1, Tier 2, or Ver 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 ® NO ❑
IF YES, HAVE YOU CONTACTED THE DWQ REGIONAL OFFICE? YES ® NO ❑
REGIONAL OFFICE CONTACT NAME: Isaiah Reed
Mail an original and one copy 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 tha there are si nificant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations."
(Signs re of Perm" eej '( ate}
Permit Date: 11/1/2012-10/31/2017 SWU-24S, last revised 10/2S/2012
Page 3 of 3